Water and Air Experiments Test Worksheet

Science experiments lesson 10: Part 1 test: water and air · Set 814 · 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.🧺 Three of these are needed for the water cycle bowl. Which one is NOT needed? (a) sunlight (b) a balloon (c) ice cubes (d) cling film
2. 2.⚖️ Fair test — does a bowl in the sun make more drops than a bowl in the shade? Which of these is kept the same? (a) how many drops form (b) the time we wait (c) sun or shade
3. 3.⚖️ Fair test — do the layers end up in the same order if we pour the liquids in a different order? Which of these is the one thing we change? (a) the order of pouring (b) the same glass (c) the order of the layers (d) the same three liquids
4. 4.🧺 Which of these is needed for the balloon rocket? (a) a drinking straw (b) yeast (c) a magnet (d) a battery cell
5. 5.🛟 Does an ice cube float or sink in water? (a) floats (b) sinks
6. 6.🛟 Which is a safe rule for the balloon rocket? (a) keep it away from faces (b) aim it at your friend (c) put string round a neck (d) blow it till it bursts
7. 7.💧 Which of these lets water climb up it? (a) a glass marble (b) a strip of cloth (c) a plastic ruler (d) a steel spoon
8. 8.🧺 Which of these is not needed for the dissolving test? (a) honey (b) a teaspoon (c) two clear glasses (d) warm water
9. 9.True or false: a paper clip is needed for the paper helicopter. (a) True (b) False
10. 10.🥄 Does a big sugar cube dissolve faster or slower? (a) slower (b) faster
11. 11.🧺 Do we need a glass of water for the card-on-a-glass trick? (a) not needed (b) needed
12. 12.💧 Why do water drops form on the outside of a glass of ice water? (a) ice escapes the glass (b) vapour in air cools (c) the glass leaks (d) the glass sweats
13. 13.🛟 Why should we wipe up spilled oil at once? (a) spilled oil is slippery (b) oil turns into honey (c) oil makes it rain (d) oil attracts magnets
14. 14.🥄 Why does sugar dissolve faster in warm water? (a) warm water is thicker (b) cold water is wet (c) sugar likes the dark (d) particles move faster
15. 15.🚁 Which of these falls fast through the air? (a) a feather (b) a toy parachute (c) a fluff of cotton (d) a stone
16. 16.True or false: a small cup is needed for the water cycle bowl. (a) False (b) True
17. 17.🚁 Dropped from a raised hand, does a fluff of cotton fall slowly or fast? (a) falls fast (b) falls slowly
18. 18.🧺 Which of these is needed for the coloured flower experiment? (a) turmeric powder (b) a magnet (c) a glass of water (d) a mirror
19. 19.⚖️ Fair test — does the amount of water in the glass change how bright the rainbow is? Which of these is the one thing we change? (a) the amount of water (b) the same white paper (c) the time of day (d) the same glass
20. 20.🛟 Which of these sinks in water? (a) a cork (b) an ice cube (c) a coin (d) a ping-pong ball
21. 21.⚖️ Fair test — does sugar dissolve faster in warm water or in cold water? What do we do with “the stirring”? (a) we change it (b) we measure it (c) we keep it the same
22. 22.🧺 Do we need a results table for the float-or-sink test? (a) needed (b) not needed
23. 23.⚖️ Fair test — does a bowl in the sun make more drops than a bowl in the shade? What do we do with “the time we wait”? (a) we measure it (b) we change it (c) we keep it the same
24. 24.⚖️ Fair test — does the amount of water in the glass change how bright the rainbow is? What do we do with “the amount of water”? (a) we measure it (b) we change it (c) we keep it the same
25. 25.⚖️ Fair test — does the shape of a lump of clay change whether it floats? True or false: whether it floats is kept the same. (a) True (b) False
26. 26.🧺 Three of these are needed for the density tower. Which one is NOT needed? (a) water with food colour (b) cooking oil (c) a mirror (d) honey
27. 27.🔮 Predict: you squeeze an empty plastic bottle with its cap screwed on tight. Why is it hard? (a) the cap is sticky (b) air inside pushes back (c) the bottle is magnetic (d) water is hiding there
28. 28.🚁 Dropped from a raised hand, does a stone fall slowly or fast? (a) falls slowly (b) falls fast
29. 29.💧 Dip a piece of foil into coloured water. Does the water climb up it? (a) water climbs up it (b) water does not climb
30. 30.🌈 In a rainbow in the sky, which colour is on the outside (top) edge? (a) violet (b) blue (c) green (d) red
31. 31.⚖️ 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 cling film cover (c) the size of the bowl (d) the time we wait
32. 32.True or false: a cork is denser than water. (a) True (b) False
33. 33.🧺 Which of these is needed for the water cycle bowl? (a) a big bowl (b) a magnet (c) a mirror (d) a balloon
34. 34.True or false: small pebbles dissolves in water. (a) True (b) False
35. 35.🌈 In VIBGYOR, what number colour is orange?
36. 36.🧺 Do we need a strip of paper for the paper helicopter? (a) not needed (b) needed
37. 37.⚖️ 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
38. 38.🧺 Do we need turmeric powder for the coloured flower experiment? (a) needed (b) not needed
39. 39.🧺 Three of these are needed for the density tower. Which one is NOT needed? (a) honey (b) a tall clear glass (c) water with food colour (d) a balloon
40. 40.🔍 Which is the odd one out? (a) a sugar cube (b) a plastic ruler (c) a flower stem (d) a piece of chalk

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