Water and Air Experiments Test Worksheet

Science experiments lesson 10: Part 1 test: water and air · Set 393 · 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 drinking straw is needed for the balloon rocket. (a) False (b) True
2. 2.🔮 What would change if the flower stood in plain water? (a) no colour change (b) the flower glows (c) the stem turns blue (d) the petals turn red
3. 3.💧 Which of these is condensation? (a) snow turning to water (b) butter going runny (c) water becoming ice (d) dew on morning grass
4. 4.🛟 Why should we wipe up spilled oil at once? (a) oil turns into honey (b) oil attracts magnets (c) oil makes it rain (d) spilled oil is slippery
5. 5.True or false: a results table is needed for the float-or-sink test. (a) True (b) False
6. 6.⚖️ Fair test — does the card stay on with a full glass and with a half-full glass? True or false: the same glass is kept the same. (a) False (b) True
7. 7.🛟 Which of these floats on water? (a) a ball of clay (b) a glass marble (c) a ping-pong ball (d) a metal key
8. 8.🥄 Which of these dissolves in water? (a) sugar (b) sawdust (c) sand (d) cooking oil
9. 9.⚖️ Fair test — does colour reach the petals faster with a short stem or a long stem? What do we do with “the amount of water”? (a) we change it (b) we keep it the same (c) we measure it
10. 10.True or false: a rubber eraser does not let water climb. (a) True (b) False
11. 11.💧 Which of these is evaporation? (a) dew on morning grass (b) sweat drying on skin (c) butter going runny (d) a misty bathroom mirror
12. 12.🔍 Which is the odd one out? (a) a vacuum cleaner (b) a bicycle pump (c) a medicine dropper (d) a compass needle
13. 13.🚀 Which of these goes forward? (a) water a swimmer pushes (b) air from the balloon (c) water from the oars (d) the balloon
14. 14.🧺 Do we need turmeric powder for the coloured flower experiment? (a) not needed (b) needed
15. 15.🧺 Do we need food colour for the coloured flower experiment? (a) needed (b) not needed
16. 16.🧺 Do we need a magnet for the balloon rocket? (a) needed (b) not needed
17. 17.⚖️ Fair test — does the shape of a lump of clay change whether it floats? Which of these is what we measure? (a) the tub of water (b) the amount of clay (c) the kind of clay (d) whether it floats
18. 18.True or false: a sink or a bucket is needed for the card-on-a-glass trick. (a) False (b) True
19. 19.💧 Which change is this: butter going runny? (a) condensation (b) evaporation (c) melting (d) freezing
20. 20.🧺 Three of these are needed for the card-on-a-glass trick. Which one is NOT needed? (a) a glass of water (b) a balloon (c) a towel (d) a sink or a bucket
21. 21.🔍 Which is the odd one out? (a) sawdust (b) glucose powder (c) table salt (d) food colour
22. 22.⚖️ Fair test — do longer blades make the paper helicopter fall more slowly? True or false: the kind of paper is kept the same. (a) True (b) False
23. 23.🛟 Which rule keeps you safe when working with sunlight? (a) look at it in a mirror (b) never look at the Sun (c) look at it through glass (d) stare at the Sun
24. 24.⚖️ 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
25. 25.🧺 Which of these is needed for the balloon rocket? (a) a magnet (b) a long string (c) a mirror (d) a battery cell
26. 26.⚖️ Fair test — does the card stay on with a full glass and with a half-full glass? Which of these is the one thing we change? (a) how full the glass is (b) the same glass (c) whether the card stays (d) the same card
27. 27.🔍 Which is the odd one out? (a) making ice lollies (b) water becoming ice (c) a puddle drying up (d) a pond icing over
28. 28.🔍 Which is the odd one out? (a) a ball of clay (b) a glass marble (c) a dry leaf (d) a metal key
29. 29.True or false: a metal key floats on water. (a) False (b) True
30. 30.True or false: a magnet is needed for the water rainbow. (a) True (b) False
31. 31.🛟 How should you check if the sugar has dissolved? (a) poke it with a finger (b) taste it (c) look for leftover grains (d) smell it closely
32. 32.⚖️ 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 the one thing we change. (a) False (b) True
33. 33.🥛 Does a drinking straw work by air pressure or by magnetism? (a) magnetism (b) air pressure
34. 34.💧 Dip a piece of chalk into coloured water. Does the water climb up it? (a) water climbs up it (b) water does not climb
35. 35.⚖️ Fair test — do longer blades make the paper helicopter fall more slowly? What do we do with “the paper clip”? (a) we measure it (b) we change it (c) we keep it the same
36. 36.⚖️ Fair test — does the shape of a lump of clay change whether it floats? What do we do with “whether it floats”? (a) we change it (b) we measure it (c) we keep it the same
37. 37.🧺 Do we need yeast for the water rainbow? (a) needed (b) not needed
38. 38.🧺 Three of these are needed for the density tower. Which one is NOT needed? (a) a tall clear glass (b) cooking oil (c) a balloon (d) a spoon
39. 39.🧺 Which of these is needed for the density tower? (a) honey (b) a mirror (c) a balloon (d) yeast
40. 40.True or false: the balloon goes backward. (a) True (b) False

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