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Level 6

1. Sir Alexander Fleming (1881- 1955) is best remembered for..
(question id=59086)
 
 
 
 

Question 1 of 708

2. Michael Faraday is best known for his work involving……..
 
 
 
 

Question 2 of 708

3. Which English scientist is best known for his work on GRAVITY?
 
 
 
 

Question 3 of 708

4. What does a barometer measure?
 
 
 
 

Question 4 of 708

5. A LEVERET is the name for which young animal?
 
 
 
 

Question 5 of 708

6. Gunpowder was invented by
 
 
 
 

Question 6 of 708

7. The scientist best known for his work on gravity, light and mathematics is called
 
 
 
 

Question 7 of 708

8. The scientist best known for his work on vaccinations and work on germs is
 
 
 
 

Question 8 of 708

9. The scientist best known for his discovery of penicillin is called
 
 
 
 

Question 9 of 708

10. The scientist and inventor who is credited for the first working telephone is called
 
 
 
 

Question 10 of 708

11. What does an ANEMOMETER measure?
 
 
 
 

Question 11 of 708

12. What name is given to the study of the animal kingdom?
 
 
 
 

Question 12 of 708

13. Botany is the study of what?
 
 
 
 

Question 13 of 708

14. Which is hotter….?
 
 
 
 

Question 14 of 708

15. Marie Curie is best known for her work involving
 
 
 
 

Question 15 of 708

16. How many degrees Fahrenheit is 10 degrees Celsius?
 
 
 
 

Question 16 of 708

17. Which of the gases below would not be found in the Earth’s atmosphere?
 
 
 
 

Question 17 of 708

18. On the MOH’s scale of hardness what is the softest substance
(1 on the MOH’s scale)
 
 
 
 

Question 18 of 708

19. On the MOH’s scale of hardness what is the hardest substance ?
(10 on the MOH’s scale)
 
 
 
 

Question 19 of 708

20. Which gas, found in the upper layers of the atmosphere, absorbs the harmful Ultra Violet rays of light that come from the Sun
 
 
 
 

Question 20 of 708

21. What does a chronometer measure?
 
 
 
 

Question 21 of 708

22. An ‘Anaerobic digester’ is a device that uses bacteria to recycle waste and produce what kind of gas?
 
 
 
 

Question 22 of 708

23. A person who suffers from insomnia has what wrong with them?
 
 
 
 

Question 23 of 708

24. What comes near to the Earth every 76 years?
 
 
 
 

Question 24 of 708

25. Bananas are rich in which substance?
 
 
 
 

Question 25 of 708

26. What is measured by the Beaufort Scale?
 
 
 
 

Question 26 of 708

27. Where would you find your biceps and triceps?
 
 
 
 

Question 27 of 708

28. Which of the following would you use a clinometer to measure?
 
 
 
 

Question 28 of 708

29. The core of the Earth is made of nickel and which other element?
 
 
 
 

Question 29 of 708

30. The main elements in rocks is
 
 
 
 

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31. What is the unit of electrical resistance?
 
 
 
 

Question 31 of 708

32. What is the name of the part of our eye that is coloured ?
 
 
 
 

Question 32 of 708

33. What is the name of the part of our eye that contains a lens ?
 
 
 
 

Question 33 of 708

34. What is the name of the part of our eye that contains light sensitive cells ?
 
 
 
 

Question 34 of 708

35. What would be the effect on a habitat if all the herbivores suddenly died out
 
 
 
 

Question 35 of 708

36. What does SYMBIOSIS mean?
 
 
 
 

Question 36 of 708

37. Imagine you are in a wood. At what time of the day (or night) would the carbon dioxide concentration be the highest
 
 
 
 

Question 37 of 708

38. What would be the effect on an ecosystem if all the herbivores suddenly died out
 
 
 
 

Question 38 of 708

39. What is a saprophyte?
 
 
 
 

Question 39 of 708

40. Which of the gases named below is released by bacteria when things decompose and is a powerful greenhouse gas
 
 
 
 

Question 40 of 708

41. In what way do gametes differ from other cells in our body ?
 
 
 
 

Question 41 of 708

42. In which part of your body will you find a retina?
 
 
 
 

Question 42 of 708

43. Haemoglobin is found mainly in what part of our body?
 
 
 
 

Question 43 of 708

44. Where would you find the cerebellum?
 
 
 
 

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45. Which part of the body makes red blood cells?
 
 
 
 

Question 45 of 708

46. ANTAGONISTIC MUSCLES are muscles that
 
 
 
 

Question 46 of 708

47. A fungus is an example of a saprophyte.
Saprophytes are living organisms that:
 
 
 

Question 47 of 708

48. What are stomata?
 
 
 
 

Question 48 of 708

49. When does respiration take place in a plant?
 
 
 
 

Question 49 of 708

50. Why do plants have stomata ?
 
 
 
 

Question 50 of 708

51. Excess copper oxide is stirred into sulphuric and filtered. What colour will the final solution be?
 
 
 
 

Question 51 of 708

52. Exactly enough sodium hydroxide solution is added to hydrochloric acid to make a neutral solution.
How can salt (sodium chloride crystals) be obtained from the resulting solution?
 
 
 
 

Question 52 of 708

53. Four different substances are added to dilute sulphuric acid
Which of the substances would produce no reaction?
 
 
 
 

Question 53 of 708

54. Sodium chloride is the chemical name for
 
 
 
 

Question 54 of 708

55. Name one of the only two liquid elements
 
 
 
 

Question 55 of 708

56. What atoms is diamond made out of?
 
 
 
 

Question 56 of 708

57. Which of the substances listed below is the odd one out?
 
 
 
 

Question 57 of 708

58. If a chemical is inert what does this tell you about it?
 
 
 
 

Question 58 of 708

59. How many elements are present in the compound calcium carbonate?
Calcium carbonate has the formula CaCO3
 
 
 
 

Question 59 of 708

60. graph4The graph above shows the amount of a substance that dissolves in water at different temperatures.

Which substance does the amount that dissolves decrease as the temperature of the water rises? (schol.)
 
 
 
 

Question 60 of 708

61. graph4The graph above shows the amount of a substance that dissolves in water at different temperatures.

At what temperature is the solubility of substance A exactly the same as the solubility of substance C?
 
 
 
 

Question 61 of 708

62. An alloy of Copper and tin is called
 
 
 
 

Question 62 of 708

63. Brass is an alloy of which two metals
 
 
 
 

Question 63 of 708

64. Look at the graph below which shows the solubility of 4 substances, A, B, C and D in 100g of water at different temperatures
graphWhich substance is most likely to be a gas? (Schol.)
 
 
 
 

Question 64 of 708

65. The most common element in the Earth’s crust is
 
 
 
 

Question 65 of 708

66. Marble is an example of a
 
 
 

Question 66 of 708

67. Which explosive gas was sometimes used to inflate airships?
 
 
 
 

Question 67 of 708

68. Silicon dioxide is found in which common substance?
 
 
 
 

Question 68 of 708

69. Methane is a gas produced when rubbish rots.

Why is it bad to release lots of methane into our atmosphere?
 
 
 
 

Question 69 of 708

70. Coal, diamond and graphite all have what element in common?
 
 
 
 

Question 70 of 708

71. Coal is made up mostly of which element?
 
 
 
 

Question 71 of 708

72. Which inert gas is sometimes used to inflate airships and balloons?
 
 
 
 

Question 72 of 708

73. The decomposition of a liquid by passing an electric current through it is known as
 
 
 
 

Question 73 of 708

74. Dry Ice is the name for which frozen substance?
 
 
 
 

Question 74 of 708

75. If solid carbon dioxide (dry ice) is warmed it will:
 
 
 
 

Question 75 of 708

76. When talking about electricity, what do the letters AC stand for?
 
 
 
 

Question 76 of 708

77. What is the largest planet in our solar system?
 
 
 
 

Question 77 of 708

78. The base of a brick measures 20cm x 8cm.

When resting on the ground it excerts a pressure of 0.125 N/cm2.

What is the mass of the brick?
(The Earth’s gravity excerts a force of 10 N/kg)
 
 
 
 

Question 78 of 708

Level 7

79. What is the process of MITOSIS?
 
 
 
 

Question 79 of 708

80. What is the lowest level in the Earth’s atmosphere?
 
 
 
 

Question 80 of 708

81. What name is given to the study of fossils?
 
 
 
 

Question 81 of 708

82. Mycology is the study of
 
 
 
 

Question 82 of 708

83. What is the 6th element in the periodic table and is the main element that living things are based on.
 
 
 
 

Question 83 of 708

84. What famous scientist was awarded the 1921 Nobel Prize in Physics for his work on theoretical physics?
 
 
 
 

Question 84 of 708

85. Which organ is our body releases insulin, (substance that is needed to turn sugar into energy).
 
 
 
 

Question 85 of 708

86. A person who suffers from diabetes has what wrong with them?
 
 
 
 

Question 86 of 708

87. A person who suffers from haemophilia has what wrong with them?
 
 
 
 

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88. A person who suffers from anaemia has what wrong with them?
 
 
 
 

Question 88 of 708

89. What is the first element in the periodic table
 
 
 
 

Question 89 of 708

90. What kind of object is ‘Alpha Centauri’
 
 
 
 

Question 90 of 708

91. Alpha Centauri is a star. What makes it special?
 
 
 
 

Question 91 of 708

92. What type of animal does a ‘Lepidopterist’ study?
 
 
 
 

Question 92 of 708

93. What part of an atom did Ernest Rutherford discover in 1919?
 
 
 
 

Question 93 of 708

94. Riboflavin is another name for which vitamin?
 
 
 
 

Question 94 of 708

95. All of the below are made of waves (part of the Electro-Magnetic Spectrum).

Which has the shortest length of wave?
 
 
 
 

Question 95 of 708

96. What is special or unusual about the star called Sirius?
 
 
 
 

Question 96 of 708

97. What does an apiarist study or keep?
 
 
 
 

Question 97 of 708

98. What did Frank Whittle invent?
 
 
 
 

Question 98 of 708

99. The decimal system of numbers is made up of 10 separate symbols (the numbers 0 to 9)
How many symbols make up the binary system of numbers?
 
 
 
 

Question 99 of 708

100. What is measured by a scale developed by Fredrick Mohs who devised it in the early 19th century?
 
 
 
 

Question 100 of 708

101. Which creatures are referred to as ‘chiroptera’
 
 
 
 

Question 101 of 708

102. Is GLASS a solid, liquid or a gas?

(You have to know a lot about glass to get this question right!)
 
 
 

Question 102 of 708

103. Which of the following would not be found in the nucleus of an atom?
 
 
 

Question 103 of 708

104. What did Ernest Rutherford discover in 1919?
 
 
 
 

Question 104 of 708

105. Several types of wave are shown below.

Which is the ‘odd one out’?
 
 
 
 

Question 105 of 708

106. What does the binary number 111 represent?
 
 
 
 

Question 106 of 708

107. In which of these colours does the light have the shortest wavelength?
 
 
 
 

Question 107 of 708

108. If you were suffering from hypothermia what would be wrong with you?
 
 
 
 

Question 108 of 708

109. What word is used to describe the passage of water through a plant and out through the leaves.
 
 
 
 

Question 109 of 708

110. What name is given to the outer layer of the Earth’s atmosphere?
 
 
 
 

Question 110 of 708

Level 4

111. What is the name for a young ferret?
 
 
 
 

Question 111 of 708

112. What is the name of the closest star to the earth?
 
 
 
 

Question 112 of 708

113. What is the name for a young shark?
 
 
 
 

Question 113 of 708

114. Where is your scapula bone?
 
 
 
 

Question 114 of 708

115. What natural material is glass made from?
 
 
 
 

Question 115 of 708

116. A ‘Pride’ is a group of what type of animal?
 
 
 
 

Question 116 of 708

117. The Larynx is another name for what?
 
 
 
 

Question 117 of 708

118. Which planet is closest in size to the Earth?
 
 
 
 

Question 118 of 708

119. What causes thunder?
 
 
 
 

Question 119 of 708

120. Where is your femur bone?
 
 
 
 

Question 120 of 708

121. Which of the following is true about the Moon
 
 
 
 

Question 121 of 708

122. Which of the items listed below would be found in all living cells?
 
 
 
 

Question 122 of 708

123. Cells reproduce by a process called binary fission.

Is binary fission an example of sexual or asexual reproduction?
 
 

Question 123 of 708

124. cell4Do you think this cell is from an animal or plant?
 
 
 

Question 124 of 708

125. cell2This diagram shows a typical plant cell.

What do you think is represented by part labelled F?
 
 
 
 

Question 125 of 708

126. cell4How can you be certain that this cell is from a plant?
 
 
 
 

Question 126 of 708

127. cell1This is a diagram of a typical animal cell.

What is represented by structure labelled B?
 
 
 
 

Question 127 of 708

128. cell3This diagram shows three human body cells

Pick THREE structures present in all the cells
 
 
 
 

Question 128 of 708

129. cell3This diagram shows three human body cells

Which one represents a sperm cell?
 
 
 

Question 129 of 708

130. cell1 cell2These diagrams show two cells one from an animal and one from a plant.

Pick three structures that are present in both cells
 
 
 
 

Question 130 of 708

131. What are the main features of a mammal?
 
 
 
 

Question 131 of 708

132. What are the main features of a reptile?
 
 
 
 

Question 132 of 708

133. What are the main features of amphibian?
 
 
 
 

Question 133 of 708

134. Give an example of a reptile
 
 
 
 

Question 134 of 708

135. To which group of animals does a frog belong ?
 
 
 
 

Question 135 of 708

136. Which of the following animals is an INSECT (has six legs))
 
 
 
 

Question 136 of 708

137. Which of the following animals is a reptile (has a scaly skin)
 
 
 
 

Question 137 of 708

138. ARTHROPODS are animals that have which features?
 
 
 
 

Question 138 of 708

139. Which of the sentences below is not correct
 
 
 
 

Question 139 of 708

140. What do we mean by an animal being cold blooded?
 
 
 
 

Question 140 of 708

141. You find an animal whose body is covered with fur.

To which animal group is the animal likely to belong?
 
 
 
 

Question 141 of 708

142. You find an animal whose body is covered with scales.
The animal is lying in the shade of some grass, breathing oxygen using lungs.
To which animal group is this animal likely to belong?
 
 
 
 

Question 142 of 708

143. antPick TWO features that show this animal to be an insect
 
 
 
 

Question 143 of 708

144. spiderTo which group does this animal belong?
 
 
 
 

Question 144 of 708

145.
A

A



 

B

B



 

C

C



 

D

D



 

E

E



 

F

F



 

G

G



 

H

H



Pick out all the animals that are vertebrates
 
 
 
 
 
 
 
 

Question 145 of 708

146. Lettuce —-> slug ——> thrush ——-> fox

The third organism in any food chain will always be a
 
 
 
 

Question 146 of 708

147. What do we call the first organism in any food chain?
 
 
 
 

Question 147 of 708

148. When talking about food chains what is meant by a ‘Producer’?
 
 
 
 

Question 148 of 708

149. The place where an animal makes its home is known as its
 
 
 
 

Question 149 of 708

150. What type of food do herbivores usually eat?
 
 
 
 

Question 150 of 708

151. From where would the producer in a habitat obtain its energy?
 
 
 
 

Question 151 of 708

152. From where would the predator in a habitat obtain its energy?
 
 
 
 

Question 152 of 708

153. What type of animal is an omnivore?
 
 
 
 

Question 153 of 708

154. What type of food do carnivores usually eat?
 
 
 
 

Question 154 of 708

155. What name is given to the blood vessels that carry blood away from the heart?
 
 
 

Question 155 of 708

156. What name is given to the blood vessels that carry blood toward the heart?
 
 
 

Question 156 of 708

157. What name is given to the tiny blood vessels that bleed when you graze your knee?
 
 
 

Question 157 of 708

158. What is the normal pulse rate of a boy or girl while resting ?
The answer is in beats per minute (bpm)
 
 
 
 

Question 158 of 708

159. What is meant by your ‘pulse’
 
 
 
 

Question 159 of 708

160. Which part of our body carries blood AWAY from the heart?
 
 
 
 

Question 160 of 708

161. Glucose + oxygen      →    carbon dioxide   +  water + energy
The word equation above describes which biological process?
 
 
 
 

Question 161 of 708

162. circulation-graphThe graph below shows the heart rate of two boys, X and Y

Their teacher measured their pulse and then asked them to run on a running machine for 2 minutes

When their pulse had returned to normal the experiment was stopped

How long did it take the heart rate of boy Y to return to normal after he stopped running?
 
 
 
 

Question 162 of 708

163. circulation-graphThe graph below shows the heart rate of two boys, X and Y

Their teacher measured their pulse and then asked them to run on a running machine for 2 minutes

When their pulse had returned to normal the experiment was stopped

What was the maximum heart rate of boy X?
 
 
 
 
 

Question 163 of 708

164. circulation-graphThe graph below shows the heart rate of two boys, X and Y

Their teacher measured their pulse and then asked them to run on a running machine for 2 minutes

When their pulse had returned to normal the experiment was stopped

Which do you think was the healthiest boy?
 
 
 
 
 

Question 164 of 708

165. Name a food which is a good source of carbohydrate:
 
 
 
 

Question 165 of 708

166. Meat is a good source of
 
 
 
 

Question 166 of 708

167. Protein is good in our diet because it
 
 
 
 

Question 167 of 708

168. Which of the foods below is the healthiest source of energy
 
 
 
 

Question 168 of 708

169. Which mineral is needed to help make healthy blood?
 
 
 
 

Question 169 of 708

170. Amylase is an enzyme which does what?
 
 
 
 

Question 170 of 708

171. Why is the mineral calcium important in our diet?
 
 
 
 

Question 171 of 708

172. Why is the mineral Iron important in our diet?
 
 
 
 

Question 172 of 708

173. Why is vitamin C important in our diet?
 
 
 
 

Question 173 of 708

174. What is the length  of time between fertilization and the birth of a human baby?
 
 
 
 

Question 174 of 708

175. Name the organ where sperm are made in the male
 
 
 
 

Question 175 of 708

176. Name the organ that supplies the embryo with food and oxygen
 
 
 
 

Question 176 of 708

177. Which organ in the human body removes poisonous waste from the blood?
 
 
 
 

Question 177 of 708

178. Which part of our body controls our actions
 
 
 
 

Question 178 of 708

179. What is the normal body temperature of a human
 
 
 
 

Question 179 of 708

180. This organ breaks up food and starts digestion
 
 
 
 

Question 180 of 708

181. These organs clean the blood and produce urine
 
 
 
 

Question 181 of 708

182. What are your lungs for?
(note: none of the answers is ‘breathing’!)
 
 
 
 

Question 182 of 708

183. What is the heart for?
 
 
 
 

Question 183 of 708

184. What is your BLADDER for?
 
 
 
 

Question 184 of 708

185. Name an organ which helps digest food
 
 
 
 

Question 185 of 708

186. How many kidneys are there in the body of a normal boy or girl
 
 
 
 

Question 186 of 708

187. How many lungs are there in a the body of a normal boy or girl
 
 
 
 

Question 187 of 708

188. How many livers are there in a the body of a normal boy or girl
 
 
 
 

Question 188 of 708

189. Name the organ in our body where digestion takes place
 
 
 
 

Question 189 of 708

190. Which organ pumps blood around the body
 
 
 
 

Question 190 of 708

191. A kidney is best described as
 
 
 
 

Question 191 of 708

192. Which part of your skeleton protects the heart and lungs
 
 
 
 

Question 192 of 708

193. The spine (or backbone) is used for
 
 
 

Question 193 of 708

194. Which part of your skeleton protects the spinal cord?
 
 
 
 

Question 194 of 708

195. Which of the following bones protects the spinal cord and supports the head
 
 
 
 

Question 195 of 708

196. Bones in the skeleton either protect or support organs.

What do the RIBS do?
 
 
 
 

Question 196 of 708

197. Our teeth and bones are rich in which mineral?
 
 
 
 

Question 197 of 708

198.  

body5Which organ is the small intestine?
 
 
 
 

Question 198 of 708

199. body5What is the name of organ ‘H’
 
 
 
 

Question 199 of 708

200. What are microbes?
 
 
 
 

Question 200 of 708

201. Most microorganisms cannot be seen without a….
 
 
 

Question 201 of 708

202. What is yeast used for?
 
 
 
 

Question 202 of 708

203. Which are smaller, bacteria fungi or viruses
 
 
 
 

Question 203 of 708

204. What is the main reason a plant has leaves?
 
 
 
 

Question 204 of 708

205. What conditions does a young plant need to keep healthy
 
 
 
 

Question 205 of 708

206. What makes plants wilt?
 
 
 
 

Question 206 of 708

207. flower2The diagram shows the main parts of a flowering plant.

In which part of the plant is photosynthesis mainly carried out?
 
 
 
 

Question 207 of 708

208. flower2The diagram shows the main parts of a flowering plant.

In which part of the plant are the seeds made?
 
 
 
 

Question 208 of 708

209. Which part of a flower does pollen reach during pollination?

 
 
 
 

Question 209 of 708

210. What are the main features you would look for in a plant to show that it was pollinated by insects or other animals?

(plants are either pollinated by animals or by the wind)
 
 
 
 

Question 210 of 708

211. Grass is a flowering plant. True or False?
 
 

Question 211 of 708

212. Bees pollinate flowers.
What do they take from one flower to another?
 
 
 
 

Question 212 of 708

213. Which of the sentences below is NOT correct
 
 
 
 

Question 213 of 708

214. Seeds need light in order to start to germinate
 
 

Question 214 of 708

215. The seeds of a plant are found in which organ?
 
 
 
 

Question 215 of 708

216. flowerLook at the diagram of a flower.
Where would you find the ovules?
 
 
 
 

Question 216 of 708

217. What is meant by the word ‘GERMINATION’?
 
 
 
 

Question 217 of 708

218. flowerLook at the diagram of a flower.

What is the name of the part labelled a ?
 
 
 
 

Question 218 of 708

219. Which of the following statements is true:
 
 
 
 

Question 219 of 708

220. How do tomato plants usually spread their seeds?
 
 
 
 

Question 220 of 708

221. An acid would have what pH number?
 
 
 

Question 221 of 708

222. A liquid with a pH of 7 would be described as …..
 
 
 
 

Question 222 of 708

223. What colour will universal turn when mixed with vinegar?
 
 
 
 

Question 223 of 708

224. Name a substance with a pH value less than pH7
 
 
 
 

Question 224 of 708

225. What is the pH value of pure water?
 
 
 
 

Question 225 of 708

226. What colour would Universal Indcator turn when added to a strong acid?
 
 
 
 

Question 226 of 708

227. What colour would Universal Indcator turn when added to a mild alkali?
 
 
 
 

Question 227 of 708

228. What colour would Universal Indcator turn when added to a neutral liquid?
 
 
 
 

Question 228 of 708

229. What colour would Universal Indcator turn when added to a strong alkali?
 
 
 
 

Question 229 of 708

230. What colour would Universal Indcator turn when added to a weak acid?
 
 
 
 

Question 230 of 708

231. A liquid with a pH of 9 would be described as …..
 
 
 
 

Question 231 of 708

232. A liquid with a pH of 2 would be described as …..
 
 
 
 

Question 232 of 708

233. A liquid with a pH of 6 would be described as …..
 
 
 
 

Question 233 of 708

234. What gas is produced when zinc is added to dilute sulphuric acid?
 
 
 
 

Question 234 of 708

235. What colour will universal turn when mixed with indigestion mixture?
 
 
 
 

Question 235 of 708

236. What colour will universal turn when mixed with limewater?
 
 
 
 

Question 236 of 708

237. What colour will universal turn when mixed with water?
 
 
 
 

Question 237 of 708

238. What colour will universal turn when mixed with hydrochloric acid?
 
 
 
 

Question 238 of 708

239. Name a substance with a pH value more than pH7
 
 
 
 

Question 239 of 708

240. Name a substance with a pH value equal to pH7
 
 
 
 

Question 240 of 708

241. Name a neutral liquid
 
 
 
 

Question 241 of 708

242. Pick a liquid that is a weak acid
 
 
 
 

Question 242 of 708

243. Pick a liquid that is a mild alkali
 
 
 
 

Question 243 of 708

244. What colour is hydrated copper sulphate
 
 
 
 

Question 244 of 708

245. What colour is magnesium oxide
 
 
 
 

Question 245 of 708

246. Name a chemical that turns into a purple vapour when heated
 
 
 
 

Question 246 of 708

247. What colour is sulphur?
 
 
 
 

Question 247 of 708

248. Pick a chemical that decomposes when heated
 
 
 
 

Question 248 of 708

249. Pick a black solid from the list below
 
 
 
 

Question 249 of 708

250. Pick a chemical that reacts with water
 
 
 
 

Question 250 of 708

251. Which chemical will gain in mass when heated?
 
 
 
 

Question 251 of 708

252. Pick a chemical that will not change in mass when heated
 
 
 
 

Question 252 of 708

253. Pick a substance that burns with a bright white flame
 
 
 
 

Question 253 of 708

254. Copper, iron, gold, and aluminium are all examples of what?
 
 
 
 

Question 254 of 708

255. Pencils are sometimes called ‘Lead pencils’ even though the lead has been replaced by which substance?
 
 
 
 

Question 255 of 708

256. Which of the following is NOT a metal
 
 
 
 

Question 256 of 708

257. helium is an example of an
 
 
 
 

Question 257 of 708

258. What colour is sulphur?
 
 
 
 

Question 258 of 708

259. Is water an element compound or mixture?
 
 
 

Question 259 of 708

260. Pick an element from the list shown
 
 
 
 

Question 260 of 708

261. Fom the list of properties below pick the one which describes a non-metallic element:
 
 
 
 

Question 261 of 708

262. What is the approximate number of elements?
 
 
 
 

Question 262 of 708

263. What colour is copper sulphate?
 
 
 
 

Question 263 of 708

264. What colour is magnesium oxide?
 
 
 
 

Question 264 of 708

265. What colour is copper carbonate?
 
 
 
 

Question 265 of 708

266. Which single piece of apparatus would be the best to use if you wished to find the volume of glass in a glass stopper
 
 
 
 

Question 266 of 708

267. apparatus1The image  represents what piece of apparatus?
 
 
 
 

Question 267 of 708

268. apparatus2What is the name of the piece of apparatus shown?
 
 
 
 

Question 268 of 708

269. apparatus3What is the name of the piece of apparatus shown?
 
 
 
 

Question 269 of 708

270. apparatus3What is the purpose of the piece of apparatus shown?
 
 
 
 
 

Question 270 of 708

271. apparatus4What is the purpose of the piece of apparatus shown?
 
 
 
 

Question 271 of 708

272. flaskThe image represents what piece of apparatus?
 
 
 
 

Question 272 of 708

273. bunsen2b-1This diagram shows a Bunsen burner.

Which is the hottest part of the flame?
 
 
 
 

Question 273 of 708

274. bunsen1bThis diagram shows a Bunsen burner.
The flame is yellow and smoky.

Is the air hole open or closed?
 
 

Question 274 of 708

275.
AfiltrationB
liebig
C
measuring_cylinder
D
change2
Which diagram above contains a Liebig condenser?
 
 
 
 

Question 275 of 708

276.
AfiltrationB
liebig
C
measuring_cylinder
D
change2
Which piece of apparatus would be used to separate sand from seawater?
 
 
 
 

Question 276 of 708

277. When a bunsen burner is lit, should the air-hole be open or closed?
 
 

Question 277 of 708

278. Metal is the best material for a radiator because it
 
 
 
 

Question 278 of 708

279. Why are pan handles often covered in plastic (or wood)?
 
 
 
 

Question 279 of 708

280. The substance found in pencil ‘leads’ is made from
 
 
 
 

Question 280 of 708

281. What does ‘SYNTHETIC’ mean?
 
 
 
 

Question 281 of 708

282. If a cup of tea is to kept warm it needs to be wrapped in what kind of material?
 
 
 

Question 282 of 708

283. The metal inside an electric wire is normally made out of….
 
 
 
 

Question 283 of 708

284. A belt is made out of leather because leather is…….
 
 
 
 

Question 284 of 708

285. Kitchen cooking foil is made out of which substance
 
 
 

Question 285 of 708

286. A window is made out of glass because glass is
 
 
 
 

Question 286 of 708

287. Galvanised iron sheets are made of iron coated with a very thin layer of which metal?
 
 
 
 

Question 287 of 708

288. The filament of an electric light bulb is often made of
 
 
 
 

Question 288 of 708

289. Which is the best way to get the salt back from some salty water
 
 
 
 

Question 289 of 708

290. The best way to separate sand from iron filings is
 
 
 
 

Question 290 of 708

291. The best way to remove sand from water is
 
 
 
 

Question 291 of 708

292. Some salt is dissolved in warm water.
What do we call the liquid remaining in the beaker?
 
 
 
 

Question 292 of 708

293. Tim mixed four different chemicals with water.
SOIL, SALT, SAND and CHALK

Which of them do you think dissolved?
 
 
 
 

Question 293 of 708

294. Jane has two bowls on her bench.
One contains fine brown sugar. The other contains sand.
To find out which was which she stirred each into some warm water. Which will dissolve?
 
 
 
 

Question 294 of 708

295. What happens to sugar when you stir it into a cup of tea?
 
 
 
 

Question 295 of 708

296. What process would be best used to obtain pure water from sea water?
 
 
 
 

Question 296 of 708

297. A boy dissolved some salt in warm water. What do we call the resulting mixture?
 
 
 
 

Question 297 of 708

298. In a solution of salty water, the salt is called the
 
 
 
 

Question 298 of 708

299. What process would be used to obtain the solvent from a solution?
 
 
 
 

Question 299 of 708

300. What process would be used to obtain the solute from a solution?
 
 
 
 

Question 300 of 708

301. What process would you  use to remove the flour from a suspension of flour in water?
 
 
 
 

Question 301 of 708

302. Which of the following would you use filtration for?
 
 
 
 

Question 302 of 708

303. Peter has three coloured felt pens which he labelled A, B and C.
He used the apparatus below to separate the dyes used to make colours from each of the pens.

Chromatography_tank2What is the name of the process being carried out? 
 
 
 
 

Question 303 of 708

304. Peter has three coloured felt pens which he labelled A, B and C.
He used the apparatus below to separate the dyes used to make colours from each of the pens.

Which pen has an ink made from 4 dyes mixed together?Chromatography_tank2
 
 
 

Question 304 of 708

305. After filtering a mixture what do we call the liquid that drips through the filter paper?
 
 
 

Question 305 of 708

306. Which of the below is a fossil fuel?
 
 
 
 

Question 306 of 708

307. What colour is sulphur?
 
 
 
 

Question 307 of 708

308. Some plastic is bio readable.

What does biodegradable mean?
 
 
 
 

Question 308 of 708

309. Which of the properties of water listed below is NOT correct
 
 
 
 

Question 309 of 708

310. Which gas is removed from the air when something burns?
 
 
 
 

Question 310 of 708

311. Which of the gases below does not burn?
 
 
 

Question 311 of 708

312. Which of these is a chemical change?
 
 
 
 

Question 312 of 708

313. Which of these changes is not reversible
 
 
 
 

Question 313 of 708

314. Word equations for 4 different reactions are shown.
Which of them is an example of a combustion reaction?
 
 
 
 

Question 314 of 708

315. What is the word equation for the reaction between copper and oxygen
 
 
 
 

Question 315 of 708

316. What is the test for oxygen gas?
 
 
 
 

Question 316 of 708

317. What is the test for hydrogen gas?
 
 
 
 

Question 317 of 708

318. What is the test for carbon dioxide gas?
 
 
 
 

Question 318 of 708

319. Is carbon dioxide a solid, liquid or gas?
(at normal room temperature)
 
 
 

Question 319 of 708

320. What will chocolate do when heated gently in an open dish
 
 
 

Question 320 of 708

321. What is the normal boiling point of water?
 
 
 
 

Question 321 of 708

322. Which of the gases below makes the bubbles of fizzy drinks?
 
 
 
 

Question 322 of 708

323. Which of the gases below is sometimes put in balloons to make them float?
 
 
 
 

Question 323 of 708

324. I know that air is a GAS because
 
 
 
 

Question 324 of 708

325. Sam notices drops of water forming on the mirror when he was having a bath.
This is because water vapour in the air is doing what?
 
 
 
 

Question 325 of 708

326. What is the melting point of water?
 
 
 
 

Question 326 of 708

327. When clothes dry the water is
 
 
 
 

Question 327 of 708

328. What is happening to water when it is left to boil in a kettle?
 
 
 
 

Question 328 of 708

329. When a gas changes to a liquid the process is called
 
 
 
 

Question 329 of 708

330. Which of the options below about the properties of a liquid is NOT correct?
 
 
 
 

Question 330 of 708

331. This diagram shows the water cycle
water cycle3Where does the energy come from that drives the water cycle?
 
 
 
 

Question 331 of 708

332. circuit2In which of the circuits shown will the bulb (or bulbs) be the brightest?
 
 
 
 

Question 332 of 708

333. circuit2In which of the circuits shown will the bulb (or bulbs) be the dimmest?
 
 
 
 

Question 333 of 708

334. circuit2Which of the circuit diagrams shows two bulbs joined in parallel?
 
 
 
 

Question 334 of 708

335. circuit2Which of the circuit diagrams shows two bulbs joined in series?
 
 
 
 

Question 335 of 708

336. circuit3Look at the circuit diagram which shows 2 cells connected to three bulbs.
What would happen if we added an extra cell?
 
 
 
 

Question 336 of 708

337. Which of these substances aree electrical insulators?
 
 
 
 

Question 337 of 708

338. circuit1bThe diagram shows a circuit containing two similar bulbs and a battery.

Which bulb will be brightest?
 
 
 

Question 338 of 708

339. circuit1bThe diagram shows a circuit containing two similar bulbs and a battery.

If Bulb B is unscrewed what will happen to bulb A?
 
 
 
 

Question 339 of 708

340. Name an instrument for measuring the current in a circuit
 
 
 
 

Question 340 of 708

341. Which of these substances are conductors of electricity?
(Tick all that appply)
 
 
 
 

Question 341 of 708

342. A falling stone will have what kind of energy?
 
 
 
 

Question 342 of 708

343. Name the metric unit for energy
 
 
 
 

Question 343 of 708

344. Which of the energy changes below represents that which takes place when some wood is burnt
 
 
 
 

Question 344 of 708

345. Which of the energy changes below represents that which takes place when a stone is dropped
 
 
 
 

Question 345 of 708

346. Alice put four objects on to a tray and slowly tipped it up.
The pencil sharpener slid first. The matchbox slid next. Then the scissors. The rubber slid last. Which object had the most friction between it and the tray?
 
 
 
 

Question 346 of 708

347. Alice put four objects on to a tray and slowly tipped it up.
The pencil sharpener slid first. The matchbox slid next. Then the scissors. The rubber slid last. Which object had the least friction between it and the tray?
 
 
 
 

Question 347 of 708

348. Fran pulled a box containing some weights across the carpet. She used a force meter to measure the force needed to pull the box.
What force was making the box difficult to move?
 
 
 

Question 348 of 708

349. What force holds a planet in orbit around the sun?
 
 
 
 

Question 349 of 708

350. What is the name of the force which causes a moving car to slow down?
 
 
 
 

Question 350 of 708

351. What sort of surface should something have to prevent slipping?
 
 
 
 

Question 351 of 708

352. What force causes a moving car to slow down?
 
 
 
 

Question 352 of 708

353. What instrument would you use to measure a force?
 
 
 
 

Question 353 of 708

354. What does N stand for on a magnet?
 
 
 
 

Question 354 of 708

355. Sophia brings the north seeking pole of one magnet near to the north seeking pole of another magnet.

What will happen?
 
 
 

Question 355 of 708

356. Two magnets, when brought near each other are found to REPEL.
If the pole of one magnet is north what is the other pole?
 
 

Question 356 of 708

357. Two magnets, when brought near each other are found to REPEL (push apart)
If the pole of one magnet is north what is the pole of the other magnet?
 
 

Question 357 of 708

358. If the North seeking pole of one magnet is brought near the south seeking pole of another magnet what will happen?
 
 
 

Question 358 of 708

359. Which of the following metals are magnetic
 
 
 
 

Question 359 of 708

360. Which would be the best instrument to measure the volume of some water?
 
 
 
 

Question 360 of 708

361. If you went to the moon what would happen to your weight?
 
 
 

Question 361 of 708

362. Pick the best description to describe the word REFLECTION:
 
 
 
 

Question 362 of 708

363. Which travels faster – sound or light?
 
 
 

Question 363 of 708

364. What needs to be done to increase the pitch of a guitar string?
 
 
 
 

Question 364 of 708

365. If a guitar string is plucked harder what will happen?
 
 
 
 

Question 365 of 708

366. If a violin string is going to make a sound it
 
 
 
 

Question 366 of 708

367. What is meant by the PITCH of a sound?
 
 
 

Question 367 of 708

368. What word describes what happens to a light ray when it hits a mirror
 
 
 
 

Question 368 of 708

369. In order to make a guitar string vibrate quicker what needs to be done to it?
 
 
 
 

Question 369 of 708

370. What do we call something that does not allow light to pass through it?
 
 
 
 

Question 370 of 708

371. What does ‘translucent’ mean?
 
 
 
 

Question 371 of 708

372. How does it help you to be seen when you wear a ‘Hi-Viz’ yellow jacket at night?
 
 

Question 372 of 708

373. What needs to be done to make a guitar string sound higher
 
 
 
 

Question 373 of 708

374. A car is travelling at 60 km/h
How far will it travel in two hours?
 
 
 
 

Question 374 of 708

375. What type of object is the moon?
 
 
 
 

Question 375 of 708

376. We can often see the Moon at night.
Which of the following is true?
 
 

Question 376 of 708

377. At which of the times below will your shadow be the shortest?
 
 
 
 

Question 377 of 708

378. Which of the times below will produce the longest shadow?
 
 
 
 

Question 378 of 708

379. How many planets are in the Solar System?
 
 
 
 

Question 379 of 708

380. What causes day and night?
 
 
 
 

Question 380 of 708

381. Which planet is nearest to the sun?
 
 
 
 

Question 381 of 708

382. What type of object is the Earth?
 
 
 
 

Question 382 of 708

383. What type of object is the Sun?
 
 
 
 

Question 383 of 708

384. Day and night is caused by
 
 
 
 

Question 384 of 708

385. What type of object is the Sun
 
 
 
 

Question 385 of 708

386. The fourth planet from the Sun is
 
 
 
 

Question 386 of 708

387. Weather is colder in winter in England compared to the summer because….
 
 
 
 

Question 387 of 708

388. What object is at the centre of our solar system
 
 
 
 

Question 388 of 708

389. Place the following in order of size (largest first)

SUN, MOON, EARTH
 
 
 
 

Question 389 of 708

390. What force holds a planet in orbit around the sun?
 
 
 
 

Question 390 of 708

391. The circuit diagram shows 4 components represented by circuit symbols

circuit1Which of the symbols represents a LDR (light dependent resistor)?
 
 
 
 

Question 391 of 708

392. The circuit diagram shows 4 components

circuit1What changes would you notice to this circuit if you placed your hand over component B making it darker?   (Tick all that apply)
 
 
 
 

Question 392 of 708

393. variable-resistorWhat is the name of this component?
 
 
 
 

Question 393 of 708

394. How many mm in a metre?
 
 
 
 

Question 394 of 708

395. What is the unit of force?
 
 
 
 

Question 395 of 708

396. What is the unit of pressure?
 
 
 
 

Question 396 of 708

397. What is the unit of Energy?
 
 
 
 

Question 397 of 708

398. What is the unit of speed?
 
 
 
 

Question 398 of 708

399. The statements below describe some properties of light and sound.

Tick those that are correct.
 
 
 
 

Question 399 of 708

400. A man was using a crowbar to move a stone.
Unfortunately the stone was still too heavy  for the man to move.

crowbarTo make the stone easier to move should he use a longer or shorter crowbar?
 
 
 

Question 400 of 708

401. What is the unit of Mass?
 
 
 
 

Question 401 of 708

402. What is the unit of Weight?
 
 
 
 

Question 402 of 708

403. What is the unit of volume?
 
 
 
 

Question 403 of 708

404. What is the unit of area?
 
 
 
 

Question 404 of 708

405. What formula is used to calculate density?
 
 
 
 

Question 405 of 708

406. What formula is used to calculate pressure?
 
 
 
 

Question 406 of 708

407. What formula is used to calculate speed?
 
 
 
 

Question 407 of 708

408. What formula is used to calculate volume?
 
 
 
 

Question 408 of 708

409. What formula is used to calculate area?
 
 
 
 

Question 409 of 708

410. How many mm in a metre?
 
 
 
 

Question 410 of 708

411. How many millilitres in a litre?
 
 
 
 

Question 411 of 708

412. A boy runs 100 metres in 20 seconds.
What is his average speed?
 
 
 
 

Question 412 of 708

413. What is the boiling point of water?
 
 
 
 

Question 413 of 708

414. From the list given which would be the best instrument for finding the mass of a small stone?
 
 
 
 

Question 414 of 708

415. If you went to the moon what would happen to your mass?
 
 
 

Question 415 of 708

Level 5

416. Na is the symbol for which chemical element
 
 
 
 

Question 416 of 708

417. What type of animal is a ‘Portuguese Man of War’?
 
 
 
 

Question 417 of 708

418. Topic: Elements

Which is the odd one out from the gases shown below?
 
 
 
 

Question 418 of 708

419. A section from an animals liver would be best described as
 
 
 
 

Question 419 of 708

420. In what kind of cell would you find some CHLOROPLASTS?
 
 
 
 

Question 420 of 708

421. Which part of a cell contains the genetic material?
 
 
 
 

Question 421 of 708

422. Name three structures you may find in a plant cell but not an animal cell
 
 
 
 
 

Question 422 of 708

423. What would be found in all living cells?
 
 
 
 

Question 423 of 708

424. What part of a cell releases energy?
 
 
 
 

Question 424 of 708

425. Name three structures you would find in all living cells
 
 
 
 

Question 425 of 708

426. cell4This is a diagram of a plant cell
What is the function of the chloroplasts?
 
 
 
 

Question 426 of 708

427. Arachnids’ are another name for which kind of animal
 
 
 
 

Question 427 of 708

428. From where do producers in a food chain get their energy?
 
 
 
 

Question 428 of 708

429. What is meant by a ‘Primary Producer’?
 
 
 
 

Question 429 of 708

430. What biological process releases oxygen into the atmosphere?
 
 
 
 

Question 430 of 708

431. A plant is an example of a producer.
Producers are living organisms that:
 
 
 

Question 431 of 708

432. When talking about food chains, which of the following is an example of a producer?
 
 
 
 

Question 432 of 708

433. Lettuce —-> slug ——> thrush ——-> fox

In the food chain above what is the predator of the thrush?
 
 
 
 

Question 433 of 708

434. An animal carries out respiration in order to….
 
 
 
 

Question 434 of 708

435. Why do we need red blood cells?
 
 
 
 

Question 435 of 708

436. Name the waste gas that we breath out
(produced during respiration)
 
 
 
 

Question 436 of 708

437. Name the process that our body uses to release energy from sugar
 
 
 
 

Question 437 of 708

438. Pick the two products of respiration
 
 
 
 

Question 438 of 708

439. How does exhaled air compare with inhaled air?
 
 
 
 

Question 439 of 708

440. Scurvy, an illness that used to occur a lot in sailors taking long sea voyages, is cause by
 
 
 
 

Question 440 of 708

441. How can you test for the presence of starch in food?
 
 
 
 

Question 441 of 708

442. Enzymes are needed by our body to help us do what?
 
 
 
 

Question 442 of 708

443. Food is carried around in the blood in what form?
 
 
 
 

Question 443 of 708

444. Substances that help build and repair body tissues (like skin and muscle) will be high in which food substance?
 
 
 
 

Question 444 of 708

445. Why might we add iodine solution to a slice of food in the laboratory
 
 
 
 

Question 445 of 708

446. Where would you find villi in the human body?
 
 
 
 

Question 446 of 708

447. Which of the following is NOT true about how human babies develop
 
 
 
 

Question 447 of 708

448. Which of these facts is NOT true about a boy when his body reaches puberty
 
 
 

Question 448 of 708

449. What is a PLACENTA?
 
 
 
 

Question 449 of 708

450. Where are the eggs made in an animal?
 
 
 
 

Question 450 of 708

451. After a girl reaches puberty, how often will her body release an egg?
 
 
 
 

Question 451 of 708

452. Which of these facts is NOT true about a girl when her body reaches puberty
 
 
 

Question 452 of 708

453. What is meant by the gestation period
 
 
 
 

Question 453 of 708

454. Where does fertilization take place in the human body?
 
 
 
 

Question 454 of 708

455. Where are the female gametes (ovules) in a plant found?
 
 
 
 

Question 455 of 708

456. What is a ZYGOTE?
 
 
 
 

Question 456 of 708

457. What is a gamete?
 
 
 
 

Question 457 of 708

458. How is a sperm different to an egg in a human?
 
 
 
 

Question 458 of 708

459. At what age does a boy normally reach puberty?
 
 
 
 

Question 459 of 708

460. What happens when a boy reaches puberty?

(puberty is the time when his body starts to change in appearance, sometime between 10 and 14 years old)
 
 
 

Question 460 of 708

461. Put the statements about the human life cycle into the correct order:
A: Puberty :B Birth C: Adolescence D: Childhood
E: Adult
 
 
 
 

Question 461 of 708

462. Where does fertilization take place in the human body?
 
 
 
 

Question 462 of 708

463. Where does the embryo develop in the human body?
 
 
 
 

Question 463 of 708

464. Where are ova (eggs) made in the human body?
 
 
 
 

Question 464 of 708

465. The diagram shows a human embryo.
Which label represents the placenta?
 
 
 
 

Question 465 of 708

466. embryoThe diagram shows a human embryo.

Which label represents the umbilical cord?
 
 
 
 

Question 466 of 708

467. Which of the features listed below would be found in ALL living animals an plants
 
 
 
 

Question 467 of 708

468. What organ in our body contains valves?
 
 
 
 

Question 468 of 708

469. Which part of our body removes soluble waste and excess water from the blood
 
 
 
 

Question 469 of 708

470. Which part of our body consists mostly of nerve cells
 
 
 
 

Question 470 of 708

471. Which organ is our body contains lots of neurons
 
 
 
 

Question 471 of 708

472. Neurons are found mainly in what part of our body?
 
 
 
 

Question 472 of 708

473. The respiratory system describes which part of our body?
 
 
 
 

Question 473 of 708

474. Why is it sensible to put antiseptic on a cut?
 
 
 

Question 474 of 708

475. Which of the following is NOT caused by bacteria
 
 
 
 

Question 475 of 708

476. Bacteria and fungi help plants rot in the soil
True or false?
 
 

Question 476 of 708

477. Yeast, which is used to make bread, is a living organism
TRUE or FALSE
 
 

Question 477 of 708

478. Microbes are tiny living organisms
TRUE or FALSE
 
 

Question 478 of 708

479. Antibiotics kill which type of organism?(tick all that apply)
 
 
 

Question 479 of 708

480. Which part of a plant contains xylem and phloem vessels to transport food and water around the plant
 
 
 
 

Question 480 of 708

481. What is CHLOROPHYLL?
 
 
 
 

Question 481 of 708

482. Photosynthesis is how plants make food

Why does photosynthesis usually stop at night?

 
 
 
 

Question 482 of 708

483. Which part of a plant which takes water and dissolved nutrients from the ground ?
 
 
 
 

Question 483 of 708

484. What gas is used up by plants during photosynthesis
 
 
 
 

Question 484 of 708

485. What is the main function for the leaves of a plant
 
 
 
 

Question 485 of 708

486. Why does a plant have root hairs on the root
 
 
 
 

Question 486 of 708

487. What two substances are made by a plant during PHOTOSYNTHESIS?

 
 
 
 

Question 487 of 708

488. When does photosynthesis take place in a plant?
 
 
 
 

Question 488 of 708

489. Tick TWO raw materials needed by plants to carry out photosynthesis
 
 
 
 

Question 489 of 708

490. Complete the word equation for potosynthesis:Carbon dioxide + water   (+ sunlight)  → ………………..   ……………………..(put two ticks to indicate the two missing substances)
 
 
 
 

Question 490 of 708

491. photosynthesis2This is a diagram of an experiment to demonstrate photosynthesis.

What is the name of the colourless gas that collected in the test tube?
 
 
 
 

Question 491 of 708

492. A: New plant grows B: Seeds are dispersed
C: Seeds germinate D: Flower pollinated
E: Ovules are fertilized
Write the letters in the correct order (starting with D)
 
 
 
 

Question 492 of 708

493. You have seed that you have just taken from its packet.
In order to make it germinate what conditions will the seed need?
 
 
 
 

Question 493 of 708

494. Pollen reaching the stigma of a plant is known as
 
 
 
 

Question 494 of 708

495. flower 

The diagram shows some different parts of a flower

Which part is the stigma?
 
 
 
 

Question 495 of 708

496. flowerThe diagram shows different parts of a flower

What is the name of part d?
 
 
 
 

Question 496 of 708

497. Which part of a plant does pollen have to reach during pollination?
 
 
 
 

Question 497 of 708

498. Taking cuttings, budding and forming runners are all examples of what process?
 
 
 
 

Question 498 of 708

499. Where is the male gamete (pollen) formed in plants?
 
 
 
 

Question 499 of 708

500. What conditions from its environment does a seedling need to help it grow?
 
 
 
 

Question 500 of 708

501. Which of these sentences is correct
 
 
 
 

Question 501 of 708

502. If Magnesium hydroxide (indigestion powder) were added to vinegar which of the answers would best describe what would happen?
 
 
 
 

Question 502 of 708

503. If a gardener wished to make his soil less acid, which of the following would be the best to do?
 
 
 
 

Question 503 of 708

504. Complete the word equation:
Hydrochloric acid + sodium hydroxide      ?
 
 
 
 

Question 504 of 708

505. Citric acid would be found in which house-hold substance?
 
 
 
 

Question 505 of 708

506. Pick an alkaline oxide from the list
 
 
 
 

Question 506 of 708

507. What type of acid is often put in car batteries?
 
 
 

Question 507 of 708

508. What type of acid is found in your stomach?
 
 
 

Question 508 of 708

509. What gas is produced when acids react with a metal?
 
 
 
 

Question 509 of 708

510. Word equations for 4 different reactions are shown.
Which of them is an example of a neutralization reaction?
 
 
 
 

Question 510 of 708

511. Which would be the best substance to neutralize some spilt hydrochloric acid?
 
 
 
 

Question 511 of 708

512. What gas is produced when calcium carbonate is added to dilute hydrochloric acid?
 
 
 
 

Question 512 of 708

513. Pick an acidic oxide from the list
 
 
 
 

Question 513 of 708

514. Pick an neutral oxide from the list
 
 
 
 

Question 514 of 708

515. Fill in the missing word from the equation shown below:
Acid + alkali     →    …………    +   water
 
 
 
 

Question 515 of 708

516. Fill in the missing word from the equation shown below:
Acid + metal    →  salt   +   …………
 
 
 
 

Question 516 of 708

517. About 20cm of magnesium ribbon is chopped up into 1cm lengths and placed in a crucible which is then weighed along with its lid.
The crucible is heated strongly and the lid gently raised avery few seconds.

When the reaction is over the crucible + contents + lid are all re-weighed

These are his results:
  • Mass of empty crucible + lid  = 51.2g
  • Mass of crucible + lid + magnesium (before heating) = 54.3g
  • Mass of crucible + lid + contents (after heating) = 54.7g
 

Did the magnesium gain mass, loose mass or not change in mass?
 
 
 
 

Question 517 of 708

518. About 20cm of magnesium ribbon is chopped up into 1cm lengths and placed in a crucible which is then weighed along with its lid.

The crucible is heated strongly and the lid gently raised avery few seconds.

When the reaction is over the crucible + contents + lid are all re-weighed

These are his results:
  • Mass of empty crucible + lid  = 51.2g
  • Mass of crucible + lid + magnesium (before heating) = 54.3g
  • Mass of crucible + lid + contents (after heating) = 54.7g
 

What is the magnesium reacting with?
 
 
 
 
 

Question 518 of 708

519. About 20cm of magnesium ribbon is chopped up into 1cm lengths and placed in a crucible which is then weighed along with its lid.
The crucible is heated strongly and the lid gently raised avery few seconds.

When the reaction is over the crucible + contents + lid are all re-weighed

These are his results:
  • Mass of empty crucible + lid  = 51.2g
  • Mass of crucible + lid + magnesium (before heating) = 54.3g
  • Mass of crucible + lid + contents (after heating) = 54.7g</