Water and Air Experiments Test Worksheet

Science experiments lesson 10: Part 1 test: water and air · Set 992 · 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.⚖️ Fair test — does a bowl in the sun make more drops than a bowl in the shade? What do we do with “the cling film cover”? (a) we change it (b) we measure it (c) we keep it the same
2. 2.🎈 Why does the balloon rocket move along the string? (a) a magnet pulls it (b) the string pulls it (c) escaping air pushes it (d) the straw is heavy
3. 3.🥛 Does a magnetic pin holder work by air pressure or by magnetism? (a) magnetism (b) air pressure
4. 4.🥄 Does food colour dissolve in water? (a) dissolves in water (b) does not dissolve
5. 5.🧺 Which of these is not needed for the water cycle bowl? (a) water (b) a small cup (c) a battery cell (d) ice cubes
6. 6.⚖️ Fair test — does sugar dissolve faster in warm water or in cold water? True or false: the kind of sugar is what we measure. (a) True (b) False
7. 7.🛟 Does an ice-cream stick float or sink in water? (a) floats (b) sinks
8. 8.⚖️ Fair test — does the amount of water in the glass change how bright the rainbow is? What do we do with “the same glass”? (a) we change it (b) we measure it (c) we keep it the same
9. 9.⚖️ 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 measure it (b) we change it (c) we keep it the same
10. 10.⚖️ Fair test — does colour reach the petals faster with a short stem or a long stem? What do we do with “the room it stands in”? (a) we change it (b) we measure it (c) we keep it the same
11. 11.🧺 Do we need a comb for the dissolving test? (a) needed (b) not needed
12. 12.🔮 Predict: a bowl of water is left uncovered in the hot sun all day. What happens? (a) it turns to salt (b) some water evaporates (c) the water increases (d) it turns to ice
13. 13.🧺 Which of these is not needed for the card-on-a-glass trick? (a) a towel (b) a stiff postcard (c) yeast (d) a glass of water
14. 14.🥄 Does powdered sugar dissolve faster or slower? (a) slower (b) faster
15. 15.⚖️ Fair test — does the card stay on with a full glass and with a half-full glass? What do we do with “the same card”? (a) we change it (b) we keep it the same (c) we measure it
16. 16.🛟 What should you do after handling food colour? (a) wipe them on walls (b) lick your fingers (c) wash your hands (d) rub your eyes
17. 17.🧺 Three of these are needed for the density tower. Which one is NOT needed? (a) water with food colour (b) a magnet (c) a spoon (d) honey
18. 18.🧺 Do we need small test objects for the float-or-sink test? (a) not needed (b) needed
19. 19.🧺 Which of these is not needed for the water rainbow? (a) a sheet of white paper (b) turmeric powder (c) a clear glass of water (d) bright sunlight
20. 20.🧺 Which of these is needed for the paper helicopter? (a) yeast (b) safety scissors (c) a battery cell (d) a mirror
21. 21.⚖️ Fair test — do longer blades make the paper helicopter fall more slowly? True or false: the kind of paper is kept the same. (a) True (b) False
22. 22.⚖️ Fair test — does the amount of water in the glass change how bright the rainbow is? True or false: the time of day is kept the same. (a) False (b) True
23. 23.⚖️ Fair test — does the amount of water in the glass change how bright the rainbow is? Which of these is what we measure? (a) brightness of rainbow (b) the time of day (c) the amount of water (d) the same window
24. 24.🧺 Do we need a balloon for the balloon rocket? (a) not needed (b) needed
25. 25.⚖️ Fair test — does colour reach the petals faster with a short stem or a long stem? What do we do with “the amount of water”? (a) we keep it the same (b) we measure it (c) we change it
26. 26.⚖️ Fair test — do the layers end up in the same order if we pour the liquids in a different order? What do we do with “the same glass”? (a) we change it (b) we measure it (c) we keep it the same
27. 27.🔮 Predict: you add two more paper clips. How does it fall? (a) it stops in the air (b) faster (c) it floats up (d) slower
28. 28.🧺 Three of these are needed for the density tower. Which one is NOT needed? (a) a tall clear glass (b) cooking oil (c) honey (d) a battery cell
29. 29.🧺 Do we need a drinking straw for the balloon rocket? (a) not needed (b) needed
30. 30.🚀 In “push back, move forward”, which way does air from the balloon go? (a) goes forward (b) goes backward
31. 31.🧺 Which of these is needed for the balloon rocket? (a) a balloon (b) vinegar (c) turmeric powder (d) yeast
32. 32.🧺 Which of these is not needed for the dissolving test? (a) warm water (b) a teaspoon (c) two clear glasses (d) a balloon
33. 33.⚖️ Fair test — does colour reach the petals faster with a short stem or a long stem? True or false: the amount of colour is the one thing we change. (a) True (b) False
34. 34.💧 Why do water drops form on the outside of a glass of ice water? (a) the glass leaks (b) ice escapes the glass (c) the glass sweats (d) vapour in air cools
35. 35.🧺 Three of these are needed for the card-on-a-glass trick. Which one is NOT needed? (a) a sink or a bucket (b) a stiff postcard (c) a glass of water (d) yeast
36. 36.🥄 Does sawdust dissolve in water? (a) does not dissolve (b) dissolves in water
37. 37.🧺 Which of these is needed for the coloured flower experiment? (a) a mirror (b) food colour (c) turmeric powder (d) a battery cell
38. 38.⚖️ Fair test — does the card stay on with a full glass and with a half-full glass? Which of these is what we measure? (a) how full the glass is (b) whether the card stays (c) the same card (d) the same glass
39. 39.🔮 Why do we try the card trick over a sink or a bucket? (a) to catch any spills (b) to grow plants (c) to cool the glass (d) to make it rain
40. 40.🛟 Who should pour the warm water in the dissolving test? (a) a grown-up (b) a friend who is running (c) nobody needs to (d) the youngest child

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