Water and Air Experiments Test Worksheet

Science experiments lesson 10: Part 1 test: water and air · Set 840 · 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.🛟 Why should we wipe up spilled oil at once? (a) oil makes it rain (b) oil attracts magnets (c) oil turns into honey (d) spilled oil is slippery
2. 2.True or false: a tub of water is not needed for the float-or-sink test. (a) True (b) False
3. 3.True or false: powdered sugar dissolves faster. (a) False (b) True
4. 4.🧺 Do we need cold water for the dissolving test? (a) needed (b) not needed
5. 5.True or false: butter going runny is melting. (a) False (b) True
6. 6.⚖️ Fair test — does a bowl in the sun make more drops than a bowl in the shade? Which of these is what we measure? (a) how many drops form (b) the size of the bowl (c) sun or shade (d) the time we wait
7. 7.🛟 Which is the safe way to do the float-or-sink test? (a) run around the tub (b) wipe up spills at once (c) play near a deep pond (d) leave water on the floor
8. 8.True or false: a paper towel lets water climb up it. (a) True (b) False
9. 9.🛟 Which scissors should children use to cut the paper? (a) a paper cutter (b) safety scissors (c) sharp kitchen shears (d) gardening shears
10. 10.True or false: yeast is needed for the card-on-a-glass trick. (a) False (b) True
11. 11.📘 What is water vapour? (a) a kind of smoke (b) tiny ice cubes (c) salty water (d) water as a gas
12. 12.⚖️ Fair test — does a bowl in the sun make more drops than a bowl in the shade? What do we do with “the amount of water”? (a) we keep it the same (b) we change it (c) we measure it
13. 13.⚖️ 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
14. 14.True or false: sugar left unstirred dissolves faster. (a) True (b) False
15. 15.🧺 Which of these is not needed for the dissolving test? (a) a balloon (b) sugar (c) warm water (d) cold water
16. 16.True or false: yeast is needed for the water rainbow. (a) True (b) False
17. 17.🧺 Three of these are needed for the density tower. Which one is NOT needed? (a) a magnet (b) a tall clear glass (c) honey (d) water with food colour
18. 18.🥛 Does a drinking straw work by air pressure or by magnetism? (a) magnetism (b) air pressure
19. 19.⚖️ Fair test — does colour reach the petals faster with a short stem or a long stem? True or false: the kind of flower is kept the same. (a) False (b) True
20. 20.🛟 Which is a safe rule for the balloon rocket? (a) keep it away from faces (b) blow it till it bursts (c) put string round a neck (d) aim it at your friend
21. 21.⚖️ 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 keep it the same (b) we change it (c) we measure it
22. 22.⚖️ Fair test — does a bigger balloon go farther along the string? What do we do with “the slope of the string”? (a) we keep it the same (b) we measure it (c) we change it
23. 23.True or false: ice becoming water is evaporation. (a) True (b) False
24. 24.⚖️ Fair test — do longer blades make the paper helicopter fall more slowly? True or false: the person dropping is kept the same. (a) True (b) False
25. 25.⚖️ Fair test — does colour reach the petals faster with a short stem or a long stem? What do we do with “time for colour to show”? (a) we measure it (b) we change it (c) we keep it the same
26. 26.🔍 Which layer is on top in the honey-water-oil tower? (a) cooking oil (b) the spoon (c) honey (d) coloured water
27. 27.True or false: a balloon is needed for the card-on-a-glass trick. (a) True (b) False
28. 28.🧺 Three of these are needed for the balloon rocket. Which one is NOT needed? (a) a battery cell (b) a long string (c) a drinking straw (d) sticky tape
29. 29.🧺 Which of these is not needed for the float-or-sink test? (a) small test objects (b) a magnet (c) a tub of water (d) a towel for spills
30. 30.🔍 Which is the odd one out? (a) a stone (b) a toy parachute (c) a glass marble (d) a crumpled paper ball
31. 31.💧 Which change is this: wet hair drying? (a) evaporation (b) freezing (c) condensation (d) melting
32. 32.🧺 Which of these is not needed for the card-on-a-glass trick? (a) a glass of water (b) a sink or a bucket (c) turmeric powder (d) a stiff postcard
33. 33.🌈 In VIBGYOR, what number colour is yellow?
34. 34.🛟 Why should a grown-up watch when children play near a big tub of water? (a) to keep children safe (b) to splash everyone (c) to win a prize (d) to hide the corks
35. 35.🧺 Which of these is not needed for the water cycle bowl? (a) cling film (b) sunlight (c) a small cup (d) a balloon
36. 36.🚁 What does the paper helicopter do as it falls? (a) it spins round (b) it flies upward (c) it turns into a ball (d) it stays still in air
37. 37.🧺 Do we need a balloon for the balloon rocket? (a) needed (b) not needed
38. 38.🧺 Do we need a glass of water for the card-on-a-glass trick? (a) needed (b) not needed
39. 39.⚖️ Fair test — does a bigger balloon go farther along the string? True or false: how big we blow it is what we measure. (a) False (b) True
40. 40.🧺 Three of these are needed for the coloured flower experiment. Which one is NOT needed? (a) a white flower (b) a glass of water (c) a balloon (d) food colour

Free science experiments lessons, practice and worksheets at talentjr.in/science-experiments-for-kids