Water and Air Experiments Test Worksheet

Science experiments lesson 10: Part 1 test: water and air · Set 728 · 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 — do the layers end up in the same order if we pour the liquids in a different order? Which of these is kept the same? (a) the order of the layers (b) the order of pouring (c) how much of each liquid
2. 2.💧 Which of these does not let water climb? (a) a piece of chalk (b) a sugar cube (c) a piece of foil (d) a paper towel
3. 3.⚖️ Fair test — do the layers end up in the same order if we pour the liquids in a different order? True or false: how much of each liquid is kept the same. (a) True (b) False
4. 4.⚖️ 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 keep it the same (b) we change it (c) we measure it
5. 5.🧺 Which of these is needed for the float-or-sink test? (a) turmeric powder (b) yeast (c) a battery cell (d) a towel for spills
6. 6.⚖️ Fair test — does a bowl in the sun make more drops than a bowl in the shade? Which of these is the one thing we change? (a) sun or shade (b) the size of the bowl (c) the cling film cover (d) the amount of water
7. 7.🔮 Predict: you put ice cubes on top of the cling film. What happens? (a) the bowl freezes (b) the water turns red (c) more drops form (d) fewer drops form
8. 8.🌈 Why does sunlight make a rainbow through a glass of water? (a) the water is coloured (b) water splits the light (c) the glass is painted (d) the paper makes colours
9. 9.🥄 Which of these dissolves faster? (a) a big sugar cube (b) sugar in warm water (c) sugar left unstirred (d) sugar in icy water
10. 10.💧 Which of these lets water climb up it? (a) a cotton thread (b) a plastic ruler (c) a steel spoon (d) a glass marble
11. 11.🧺 Which of these is not needed for the coloured flower experiment? (a) a balloon (b) a glass of water (c) a few hours of waiting (d) food colour
12. 12.🧺 Three of these are needed for the float-or-sink test. Which one is NOT needed? (a) small test objects (b) a tub of water (c) a towel for spills (d) a magnet
13. 13.⚖️ Fair test — does a bowl in the sun make more drops than a bowl in the shade? True or false: how many drops form is what we measure. (a) False (b) True
14. 14.📘 What do we call light bending as it passes from air into water? (a) magnetism (b) reflection (c) evaporation (d) refraction
15. 15.🧺 Do we need a drinking straw for the balloon rocket? (a) not needed (b) needed
16. 16.⚖️ Fair test — does sugar dissolve faster in warm water or in cold water? True or false: the amount of water is the one thing we change. (a) True (b) False
17. 17.🔮 Why do we try the card trick over a sink or a bucket? (a) to grow plants (b) to cool the glass (c) to make it rain (d) to catch any spills
18. 18.⚖️ Fair test — does the shape of a lump of clay change whether it floats? True or false: whether it floats is what we measure. (a) False (b) True
19. 19.🔮 Predict: you spray fine water drops with the Sun behind you. What may you see? (a) a magnet (b) a small rainbow (c) snow falling (d) a shadow of ice
20. 20.⚖️ Fair test — does sugar dissolve faster in warm water or in cold water? What do we do with “time to dissolve”? (a) we keep it the same (b) we measure it (c) we change it
21. 21.🔍 Which is the odd one out? (a) a toy parachute (b) a paper helicopter (c) a feather (d) a coin
22. 22.🧺 Do we need a magnet for the water cycle bowl? (a) not needed (b) needed
23. 23.⚖️ Fair test — does a bigger balloon go farther along the string? What do we do with “the same tape”? (a) we measure it (b) we change it (c) we keep it the same
24. 24.⚖️ Fair test — does sugar dissolve faster in warm water or in cold water? What do we do with “the amount of sugar”? (a) we keep it the same (b) we change it (c) we measure it
25. 25.🧺 Three of these are needed for the water rainbow. Which one is NOT needed? (a) a sunny window (b) bright sunlight (c) a mirror (d) a clear glass of water
26. 26.⚖️ Fair test — does sugar dissolve faster in warm water or in cold water? Which of these is what we measure? (a) the amount of water (b) the water temperature (c) the amount of sugar (d) time to dissolve
27. 27.🧺 Do we need a magnet for the coloured flower experiment? (a) not needed (b) needed
28. 28.🧺 Which of these is needed for the card-on-a-glass trick? (a) a magnet (b) a battery cell (c) turmeric powder (d) a glass of water
29. 29.⚖️ Fair test — does the card stay on with a full glass and with a half-full glass? What do we do with “whether the card stays”? (a) we keep it the same (b) we change it (c) we measure it
30. 30.🔍 Which is the odd one out? (a) a coin (b) a steel spoon (c) an ice cube (d) a metal key
31. 31.True or false: water a swimmer pushes goes forward. (a) True (b) False
32. 32.🧺 Do we need a mirror for the paper helicopter? (a) needed (b) not needed
33. 33.🔍 Which is the odd one out? (a) glucose powder (b) sugar (c) small pebbles (d) baking soda
34. 34.True or false: an open sheet of paper falls fast through the air. (a) False (b) True
35. 35.🍯 Why does honey sink to the bottom of the glass? (a) it is yellow (b) it is the coldest (c) it is the stickiest (d) it is the densest
36. 36.🛟 Which scissors should children use to cut the paper? (a) sharp kitchen shears (b) a paper cutter (c) gardening shears (d) safety scissors
37. 37.🔍 Which is the odd one out? (a) a vacuum cleaner (b) a magnetic chess set (c) a drinking straw (d) a bicycle pump
38. 38.🔮 A ball of clay sinks. What happens if you press it into a thin boat shape? (a) it sinks faster (b) it turns to stone (c) it dissolves (d) it can float
39. 39.🧺 Three of these are needed for the float-or-sink test. Which one is NOT needed? (a) a results table (b) turmeric powder (c) small test objects (d) a tub of water
40. 40.True or false: a cork is denser than water. (a) False (b) True

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