Water and Air Experiments Test Worksheet

Science experiments lesson 10: Part 1 test: water and air · Set 634 · 40 questions

What you do (Find the experiment, use the idea): 1. Read the question and find its experiment. 2. Use that experiment’s idea — density, dissolving, capillary action, light bending, air pressure, push-back, air resistance or condensation. 3. For a fair-test question, find what is changed, kept the same and measured. 4. For a safety question, choose what keeps everyone safe.

1. 1.🥄 Which of these dissolves in water? (a) cooking oil (b) sawdust (c) sand (d) glucose powder
2. 2.🧺 Three of these are needed for the density tower. Which one is NOT needed? (a) a tall clear glass (b) honey (c) a battery cell (d) cooking oil
3. 3.🚀 In “push back, move forward”, which way does water a swimmer pushes go? (a) goes backward (b) goes forward
4. 4.🧺 Do we need a mirror for the water rainbow? (a) needed (b) not needed
5. 5.🚀 In “push back, move forward”, which way does the swimmer go? (a) goes backward (b) goes forward
6. 6.🧺 Which of these is needed for the dissolving test? (a) a balloon (b) a clock or timer (c) cotton wool (d) a magnet
7. 7.🔮 Predict: you blow the balloon up only a little. What happens? (a) it flies off the string (b) it turns into a kite (c) it goes much farther (d) it goes less far
8. 8.🧺 Do we need a glass of water for the card-on-a-glass trick? (a) needed (b) not needed
9. 9.🧺 Three of these are needed for the coloured flower experiment. Which one is NOT needed? (a) a glass of water (b) a few hours of waiting (c) turmeric powder (d) food colour
10. 10.🧺 Which of these is needed for the balloon rocket? (a) turmeric powder (b) a mirror (c) a battery cell (d) a drinking straw
11. 11.True or false: a magnet is needed for the density tower. (a) False (b) True
12. 12.⚖️ Fair test — does the shape of a lump of clay change whether it floats? What do we do with “whether it floats”? (a) we keep it the same (b) we measure it (c) we change it
13. 13.💧 Which change is this: snow turning to water? (a) condensation (b) melting (c) evaporation (d) freezing
14. 14.True or false: a clock or timer is needed for the dissolving test. (a) False (b) True
15. 15.🍯 Is a ping-pong ball denser or less dense than water? (a) denser than water (b) less dense than water
16. 16.🧺 Three of these are needed for the paper helicopter. Which one is NOT needed? (a) a strip of paper (b) a paper clip (c) a pencil (d) a magnet
17. 17.🧺 Three of these are needed for the paper helicopter. Which one is NOT needed? (a) a paper clip (b) a strip of paper (c) a battery cell (d) a ruler
18. 18.🔍 Which is the odd one out? (a) food colour (b) glucose powder (c) sand (d) sugar
19. 19.📘 Air presses on everything around us. What is this push called? (a) air pressure (b) sunlight (c) magnetism (d) friction
20. 20.⚖️ Fair test — does colour reach the petals faster with a short stem or a long stem? What do we do with “the kind of flower”? (a) we change it (b) we measure it (c) we keep it the same
21. 21.⚖️ Fair test — does a bowl in the sun make more drops than a bowl in the shade? True or false: the amount of water is what we measure. (a) True (b) False
22. 22.🍯 Which of these is less dense than water? (a) cooking oil (b) a coin (c) very salty water (d) a pebble
23. 23.🔮 Why do we try the card trick over a sink or a bucket? (a) to catch any spills (b) to make it rain (c) to cool the glass (d) to grow plants
24. 24.🥄 Does cooking oil dissolve in water? (a) dissolves in water (b) does not dissolve
25. 25.🧺 Three of these are needed for the coloured flower experiment. Which one is NOT needed? (a) a few hours of waiting (b) a glass of water (c) a balloon (d) a white flower
26. 26.🧺 Which of these is not needed for the card-on-a-glass trick? (a) a stiff postcard (b) a glass of water (c) a sink or a bucket (d) a magnet
27. 27.🚀 Which of these goes forward? (a) gas from the rocket (b) water a swimmer pushes (c) the rowing boat (d) air from the balloon
28. 28.True or false: a spoon is not needed for the density tower. (a) True (b) False
29. 29.📘 What do we call water with sugar dissolved in it? (a) a solution (b) a crystal (c) a rainbow (d) a magnet
30. 30.True or false: a balloon is needed for the card-on-a-glass trick. (a) True (b) False
31. 31.🧺 Which of these is needed for the dissolving test? (a) a teaspoon (b) a comb (c) a mirror (d) a magnet
32. 32.🔮 Predict: you gently drop a coin into the tower. Where does it end up? (a) in the water layer (b) on top of the oil (c) in the oil layer (d) at the very bottom
33. 33.🧺 Three of these are needed for the float-or-sink test. Which one is NOT needed? (a) small test objects (b) a results table (c) a tub of water (d) turmeric powder
34. 34.🧺 Do we need honey for the dissolving test? (a) needed (b) not needed
35. 35.⚖️ Fair test — does the card stay on with a full glass and with a half-full glass? Which of these is kept the same? (a) how full the glass is (b) whether the card stays (c) the way we turn it
36. 36.💧 Dip a strip of cloth into coloured water. Does the water climb up it? (a) water does not climb (b) water climbs up it
37. 37.🧺 Three of these are needed for the paper helicopter. Which one is NOT needed? (a) turmeric powder (b) safety scissors (c) a pencil (d) a ruler
38. 38.🧺 Which of these is not needed for the water rainbow? (a) a clear glass of water (b) bright sunlight (c) a battery cell (d) a sheet of white paper
39. 39.🧺 Do we need honey for the density tower? (a) needed (b) not needed
40. 40.🛟 Where is a safe place to drop the helicopter from? (a) a wobbly chair (b) from your raised hand (c) a roof edge (d) a high window ledge

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