Water and Air Experiments Test Worksheet

Science experiments lesson 10: Part 1 test: water and air · Set 69 · 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.🌈 How many colours do we name in a rainbow (VIBGYOR)?
2. 2.🚀 In “push back, move forward”, which way does the swimmer go? (a) goes forward (b) goes backward
3. 3.⚖️ Fair test — does the card stay on with a full glass and with a half-full glass? What do we do with “how full the glass is”? (a) we keep it the same (b) we measure it (c) we change it
4. 4.💧 Which of these does not let water climb? (a) a rubber eraser (b) a flower stem (c) a paper towel (d) a cotton thread
5. 5.⚖️ Fair test — do longer blades make the paper helicopter fall more slowly? True or false: the drop height is what we measure. (a) True (b) False
6. 6.🥄 Does sugar in warm water dissolve faster or slower? (a) slower (b) faster
7. 7.🚁 What does the paper helicopter do as it falls? (a) it turns into a ball (b) it flies upward (c) it stays still in air (d) it spins round
8. 8.🧺 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
9. 9.🧺 Which of these is needed for the water rainbow? (a) a balloon (b) a battery cell (c) yeast (d) a clear glass of water
10. 10.⚖️ 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) whether the card stays (b) how full the glass is (c) the same card
11. 11.🧺 Which of these is needed for the float-or-sink test? (a) a magnet (b) a results table (c) a balloon (d) yeast
12. 12.🧺 Do we need honey for the dissolving test? (a) needed (b) not needed
13. 13.🚁 Which of these falls fast through the air? (a) a fluff of cotton (b) a crumpled paper ball (c) a toy parachute (d) a feather
14. 14.🧺 Which of these is not needed for the paper helicopter? (a) a pencil (b) a paper clip (c) a strip of paper (d) a battery cell
15. 15.True or false: powdered sugar dissolves faster. (a) True (b) False
16. 16.🔍 Which is the odd one out? (a) a plastic ruler (b) a paper towel (c) a piece of foil (d) a rubber eraser
17. 17.🔍 Which is the odd one out? (a) cooking oil (b) a coin (c) an ice cube (d) air
18. 18.🍯 Is a glass marble denser or less dense than water? (a) less dense than water (b) denser than water
19. 19.💧 Why do water drops form on the outside of a glass of ice water? (a) the glass sweats (b) ice escapes the glass (c) vapour in air cools (d) the glass leaks
20. 20.🧺 Which of these is not needed for the paper helicopter? (a) safety scissors (b) a pencil (c) a strip of paper (d) a magnet
21. 21.⚖️ Fair test — does a bowl in the sun make more drops than a bowl in the shade? True or false: sun or shade is the one thing we change. (a) False (b) True
22. 22.🧺 Do we need a magnet for the water rainbow? (a) needed (b) not needed
23. 23.⚖️ Fair test — does the shape of a lump of clay change whether it floats? What do we do with “whether it floats”? (a) we measure it (b) we change it (c) we keep it the same
24. 24.True or false: a battery cell is needed for the water rainbow. (a) True (b) False
25. 25.⚖️ Fair test — does sugar dissolve faster in warm water or in cold water? What do we do with “time to dissolve”? (a) we change it (b) we measure it (c) we keep it the same
26. 26.💧 Which change is this: water becoming ice? (a) evaporation (b) freezing (c) melting (d) condensation
27. 27.🧺 Do we need safety scissors for the paper helicopter? (a) needed (b) not needed
28. 28.⚖️ Fair test — does sugar dissolve faster in warm water or in cold water? Which of these is kept the same? (a) the amount of water (b) time to dissolve (c) the water temperature
29. 29.⚖️ 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 three liquids”? (a) we change it (b) we measure it (c) we keep it the same
30. 30.⚖️ 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) whether the card stays (b) how full the glass is (c) the same glass
31. 31.🔍 What do you see a day after a white flower stands in blue water? (a) the stem turns to ice (b) the flower floats away (c) the petals turn bluish (d) the water turns green
32. 32.🧺 Which of these is not needed for the water cycle bowl? (a) a magnet (b) cling film (c) water (d) a big bowl
33. 33.🧺 Three of these are needed for the float-or-sink test. Which one is NOT needed? (a) a results table (b) a tub of water (c) turmeric powder (d) small test objects
34. 34.True or false: sticky tape is not needed for the balloon rocket. (a) True (b) False
35. 35.True or false: a ping-pong ball sinks in water. (a) True (b) False
36. 36.🚁 Dropped from a raised hand, does a crumpled paper ball fall slowly or fast? (a) falls fast (b) falls slowly
37. 37.🛟 Which scissors should children use to cut the paper? (a) gardening shears (b) sharp kitchen shears (c) safety scissors (d) a paper cutter
38. 38.True or false: yeast is needed for the paper helicopter. (a) False (b) True
39. 39.🥛 Does a compass needle work by air pressure or by magnetism? (a) air pressure (b) magnetism
40. 40.🧺 Do we need a mirror for the density tower? (a) needed (b) not needed

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