Water and Air Experiments Test Worksheet

Science experiments lesson 10: Part 1 test: water and air · Set 476 · 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.True or false: a piece of foil does not let water climb. (a) True (b) False
2. 2.🧺 Which of these is needed for the water rainbow? (a) yeast (b) a battery cell (c) turmeric powder (d) a clear glass of water
3. 3.🧺 Three of these are needed for the density tower. Which one is NOT needed? (a) cooking oil (b) water with food colour (c) a mirror (d) a tall clear glass
4. 4.⚖️ Fair test — does a bowl in the sun make more drops than a bowl in the shade? What do we do with “the size of the bowl”? (a) we change it (b) we keep it the same (c) we measure it
5. 5.🔮 Predict: you add two more paper clips. How does it fall? (a) it floats up (b) faster (c) slower (d) it stops in the air
6. 6.True or false: powdered sugar dissolves slower. (a) True (b) False
7. 7.🚁 Dropped from a raised hand, does a feather fall slowly or fast? (a) falls fast (b) falls slowly
8. 8.True or false: a glass marble falls fast through the air. (a) True (b) False
9. 9.⚖️ 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 order of pouring”? (a) we keep it the same (b) we measure it (c) we change it
10. 10.True or false: a comb is not needed for the dissolving test. (a) False (b) True
11. 11.🔍 Which is the odd one out? (a) honey (b) very salty water (c) an ice cube (d) a pebble
12. 12.🥄 Which of these dissolves in water? (a) sawdust (b) chalk powder (c) food colour (d) sand
13. 13.⚖️ Fair test — do longer blades make the paper helicopter fall more slowly? True or false: the drop height is kept the same. (a) True (b) False
14. 14.⚖️ Fair test — does colour reach the petals faster with a short stem or a long stem? True or false: the length of the stem is what we measure. (a) True (b) False
15. 15.⚖️ 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 order of the layers”? (a) we change it (b) we measure it (c) we keep it the same
16. 16.🧺 Do we need a long string for the balloon rocket? (a) needed (b) not needed
17. 17.🧺 Three of these are needed for the water cycle bowl. Which one is NOT needed? (a) cling film (b) a small cup (c) a mirror (d) water
18. 18.🧺 Three of these are needed for the water cycle bowl. Which one is NOT needed? (a) ice cubes (b) water (c) a magnet (d) a small cup
19. 19.⚖️ Fair test — does the amount of water in the glass change how bright the rainbow is? True or false: brightness of rainbow is the one thing we change. (a) True (b) False
20. 20.🧺 Which of these is not needed for the density tower? (a) a balloon (b) a tall clear glass (c) water with food colour (d) cooking oil
21. 21.🧺 Which of these is not needed for the coloured flower experiment? (a) a few hours of waiting (b) a white flower (c) a mirror (d) food colour
22. 22.🛟 How should you check if the sugar has dissolved? (a) taste it (b) look for leftover grains (c) poke it with a finger (d) smell it closely
23. 23.⚖️ Fair test — does the amount of water in the glass change how bright the rainbow is? True or false: the same white paper is kept the same. (a) True (b) False
24. 24.🧺 Three of these are needed for the balloon rocket. Which one is NOT needed? (a) a long string (b) vinegar (c) two chairs (d) a drinking straw
25. 25.True or false: a balloon is not needed for the water rainbow. (a) True (b) False
26. 26.🧺 Do we need turmeric powder for the float-or-sink test? (a) needed (b) not needed
27. 27.🍯 Which of these is less dense than water? (a) a glass marble (b) very salty water (c) a ping-pong ball (d) a coin
28. 28.⚖️ Fair test — does the card stay on with a full glass and with a half-full glass? True or false: how full the glass is is kept the same. (a) False (b) True
29. 29.🔮 A ball of clay sinks. What happens if you press it into a thin boat shape? (a) it dissolves (b) it turns to stone (c) it sinks faster (d) it can float
30. 30.⚖️ Fair test — does a bigger balloon go farther along the string? True or false: the same straw is kept the same. (a) False (b) True
31. 31.⚖️ Fair test — does a bigger balloon go farther along the string? What do we do with “how big we blow it”? (a) we measure it (b) we keep it the same (c) we change it
32. 32.⚖️ Fair test — does colour reach the petals faster with a short stem or a long stem? Which of these is the one thing we change? (a) the amount of colour (b) the length of the stem (c) the room it stands in (d) time for colour to show
33. 33.🧺 Do we need yeast for the card-on-a-glass trick? (a) needed (b) not needed
34. 34.True or false: the swimmer goes backward. (a) True (b) False
35. 35.🛟 Which is the safe way to do the float-or-sink test? (a) leave water on the floor (b) play near a deep pond (c) run around the tub (d) wipe up spills at once
36. 36.🛟 Which of these floats on water? (a) a glass marble (b) a cork (c) a coin (d) an iron nail
37. 37.True or false: a paper clip is needed for the paper helicopter. (a) True (b) False
38. 38.⚖️ Fair test — does a bigger balloon go farther along the string? Which of these is the one thing we change? (a) the same tape (b) the slope of the string (c) the same string (d) how big we blow it
39. 39.🧺 Which of these is not needed for the water rainbow? (a) a mirror (b) a sheet of white paper (c) a clear glass of water (d) a sunny window
40. 40.⚖️ Fair test — does the amount of water in the glass change how bright the rainbow is? What do we do with “brightness of rainbow”? (a) we keep it the same (b) we measure it (c) we change it

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