Water and Air Experiments Test Worksheet

Science experiments lesson 10: Part 1 test: water and air · Set 216 · 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 lets water climb up it? (a) a steel spoon (b) a strip of cloth (c) a piece of foil (d) a plastic ruler
2. 2.🧺 Do we need a mirror for the dissolving test? (a) needed (b) not needed
3. 3.True or false: the swimmer goes backward. (a) True (b) False
4. 4.🧺 Do we need sunlight for the water cycle bowl? (a) needed (b) not needed
5. 5.🧺 Do we need a towel for the card-on-a-glass trick? (a) needed (b) not needed
6. 6.🧺 Three of these are needed for the water rainbow. Which one is NOT needed? (a) a sheet of white paper (b) a mirror (c) a clear glass of water (d) bright sunlight
7. 7.⚖️ Fair test — does sugar dissolve faster in warm water or in cold water? True or false: the water temperature is the one thing we change. (a) False (b) True
8. 8.⚖️ Fair test — does colour reach the petals faster with a short stem or a long stem? True or false: the amount of water is kept the same. (a) False (b) True
9. 9.True or false: a mirror is not needed for the coloured flower experiment. (a) False (b) True
10. 10.🔮 Predict: you blow up a balloon. What fills it? (a) water (b) smoke (c) air (d) sand
11. 11.True or false: a compass needle works by magnetism. (a) True (b) False
12. 12.🧺 Three of these are needed for the balloon rocket. Which one is NOT needed? (a) a long string (b) a drinking straw (c) a balloon (d) a magnet
13. 13.🚀 In “push back, move forward”, which way does gas from the rocket go? (a) goes backward (b) goes forward
14. 14.🧺 Which of these is needed for the dissolving test? (a) a balloon (b) cold water (c) a mirror (d) a comb
15. 15.🧺 Three of these are needed for the water cycle bowl. Which one is NOT needed? (a) a big bowl (b) a small cup (c) cling film (d) turmeric powder
16. 16.⚖️ Fair test — do the layers end up in the same order if we pour the liquids in a different order? Which of these is what we measure? (a) the order of the layers (b) the same three liquids (c) the order of pouring (d) the same glass
17. 17.🧺 Do we need a glass of water for the coloured flower experiment? (a) not needed (b) needed
18. 18.🧺 Which of these is not needed for the water rainbow? (a) a sheet of white paper (b) a clear glass of water (c) a sunny window (d) yeast
19. 19.⚖️ Fair test — does colour reach the petals faster with a short stem or a long stem? What do we do with “the amount of colour”? (a) we change it (b) we keep it the same (c) we measure it
20. 20.🛟 Which of these sinks in water? (a) a piece of thermocol (b) an empty capped bottle (c) an ice cube (d) a ball of clay
21. 21.🎈 Air rushes out of the back of the balloon. Which way does the balloon move? (a) backward (b) it stays still (c) forward (d) straight down
22. 22.💧 Dip a flower stem into coloured water. Does the water climb up it? (a) water does not climb (b) water climbs up it
23. 23.True or false: an ice cube is less dense than water. (a) False (b) True
24. 24.True or false: warm water is not needed for the dissolving test. (a) False (b) True
25. 25.🧺 Do we need turmeric powder for the paper helicopter? (a) needed (b) not needed
26. 26.🧺 Which of these is needed for the density tower? (a) a balloon (b) a battery cell (c) yeast (d) a tall clear glass
27. 27.🔍 Which is the odd one out? (a) table salt (b) cooking oil (c) baking soda (d) glucose powder
28. 28.⚖️ Fair test — does colour reach the petals faster with a short stem or a long stem? What do we do with “the length of the stem”? (a) we change it (b) we measure it (c) we keep it the same
29. 29.💧 What happens to water vapour when it touches the cold cling film? (a) it turns to drops (b) it disappears (c) it turns to salt (d) it turns to smoke
30. 30.🧺 Do we need a sink or a bucket for the card-on-a-glass trick? (a) not needed (b) needed
31. 31.True or false: a balloon is not needed for the water rainbow. (a) True (b) False
32. 32.🔍 Which is the odd one out? (a) a glass marble (b) a stone (c) a feather (d) a steel spoon
33. 33.🧺 Which of these is not needed for the water rainbow? (a) a sunny window (b) a clear glass of water (c) turmeric powder (d) a sheet of white paper
34. 34.🔍 Which is the odd one out? (a) a glass marble (b) a feather (c) a paper helicopter (d) a toy parachute
35. 35.⚖️ Fair test — does the amount of water in the glass change how bright the rainbow is? True or false: the time of day is the one thing we change. (a) True (b) False
36. 36.🧺 Do we need a magnet for the water rainbow? (a) not needed (b) needed
37. 37.⚖️ Fair test — does sugar dissolve faster in warm water or in cold water? True or false: the amount of water is kept the same. (a) True (b) False
38. 38.💧 Which of these does not let water climb? (a) a strip of cloth (b) a sugar cube (c) a cotton thread (d) a piece of foil
39. 39.🛟 Which scissors should children use to cut the paper? (a) a paper cutter (b) sharp kitchen shears (c) safety scissors (d) gardening shears
40. 40.🛟 Why should the glass of water stand on a steady, flat place? (a) so it gets hot (b) so it does not fall (c) so it turns blue (d) so the Sun moves

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