Water and Air Experiments Test Worksheet

Science experiments lesson 10: Part 1 test: water and air · Set 300 · 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 is not needed for the water cycle bowl? (a) a battery cell (b) a big bowl (c) water (d) cling film
2. 2.True or false: yeast is not needed for the card-on-a-glass trick. (a) False (b) True
3. 3.🚀 Which of these goes forward? (a) water from the oars (b) the rocket (c) water a swimmer pushes (d) air from the balloon
4. 4.🧺 Do we need yeast for the paper helicopter? (a) needed (b) not needed
5. 5.True or false: a vacuum cleaner works by air pressure. (a) False (b) True
6. 6.True or false: a toy parachute falls slowly through the air. (a) False (b) True
7. 7.🧺 Three of these are needed for the water cycle bowl. Which one is NOT needed? (a) sunlight (b) water (c) a magnet (d) a small cup
8. 8.True or false: a coin falls slowly through the air. (a) False (b) True
9. 9.🔍 Which is the odd one out? (a) water becoming ice (b) a puddle drying up (c) wet clothes drying (d) sweat drying on skin
10. 10.🧺 Three of these are needed for the paper helicopter. Which one is NOT needed? (a) safety scissors (b) a magnet (c) a paper clip (d) a strip of paper
11. 11.🔮 Why do we try the card trick over a sink or a bucket? (a) to make it rain (b) to catch any spills (c) to grow plants (d) to cool the glass
12. 12.🚁 Dropped from a raised hand, does a crumpled paper ball fall slowly or fast? (a) falls fast (b) falls slowly
13. 13.🥛 Does a drinking straw work by air pressure or by magnetism? (a) air pressure (b) magnetism
14. 14.🍯 Which of these is denser than water? (a) a ping-pong ball (b) air (c) very salty water (d) a cork
15. 15.⚖️ 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) sun or shade (c) the amount of water
16. 16.🛟 What should you do with popped balloon pieces? (a) chew them (b) throw them away safely (c) give them to a baby (d) keep them in your mouth
17. 17.True or false: a mirror is not needed for the coloured flower experiment. (a) True (b) False
18. 18.True or false: a puddle drying up is melting. (a) False (b) True
19. 19.True or false: a strip of paper is not needed for the paper helicopter. (a) False (b) True
20. 20.🧺 Three of these are needed for the balloon rocket. Which one is NOT needed? (a) a balloon (b) a long string (c) a battery cell (d) two chairs
21. 21.True or false: water from the oars goes forward. (a) False (b) True
22. 22.True or false: a magnetic chess set works by air pressure. (a) True (b) False
23. 23.True or false: a magnet is not needed for the water cycle bowl. (a) True (b) False
24. 24.🧺 Do we need a drinking straw for the balloon rocket? (a) not needed (b) needed
25. 25.🛟 Who should pour the warm water in the dissolving test? (a) a grown-up (b) the youngest child (c) a friend who is running (d) nobody needs to
26. 26.⚖️ Fair test — does a bigger balloon go farther along the string? What do we do with “the same straw”? (a) we keep it the same (b) we measure it (c) we change it
27. 27.🔍 Which is the odd one out? (a) a feather (b) a glass marble (c) a piece of thermocol (d) a cork
28. 28.🛟 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
29. 29.🛟 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
30. 30.⚖️ Fair test — do longer blades make the paper helicopter fall more slowly? What do we do with “the person dropping”? (a) we change it (b) we measure it (c) we keep it the same
31. 31.🧺 Do we need cling film for the water cycle bowl? (a) needed (b) not needed
32. 32.True or false: yeast is needed for the coloured flower experiment. (a) False (b) True
33. 33.🧺 Three of these are needed for the water rainbow. Which one is NOT needed? (a) bright sunlight (b) a balloon (c) a sunny window (d) a clear glass of water
34. 34.🔮 Predict: wet clothes are hung out on a sunny, windy day. How do they dry? (a) they turn to ice (b) slower (c) they never dry (d) faster
35. 35.🛟 Why should a grown-up watch when children play near a big tub of water? (a) to splash everyone (b) to hide the corks (c) to keep children safe (d) to win a prize
36. 36.True or false: a paper clip is not needed for the paper helicopter. (a) False (b) True
37. 37.True or false: yeast is needed for the paper helicopter. (a) False (b) True
38. 38.True or false: yeast is needed for the water cycle bowl. (a) False (b) True
39. 39.🧺 Do we need a mirror for the balloon rocket? (a) not needed (b) needed
40. 40.⚖️ Fair test — do the layers end up in the same order if we pour the liquids in a different order? True or false: the same glass is what we measure. (a) True (b) False

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