Water and Air Experiments Test Worksheet

Science experiments lesson 10: Part 1 test: water and air · Set 215 · 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.⚖️ Fair test — do the layers end up in the same order if we pour the liquids in a different order? True or false: how much of each liquid is kept the same. (a) False (b) True
2. 2.🧺 Three of these are needed for the coloured flower experiment. Which one is NOT needed? (a) a glass of water (b) a few hours of waiting (c) turmeric powder (d) a white flower
3. 3.🧺 Three of these are needed for the dissolving test. Which one is NOT needed? (a) sugar (b) a teaspoon (c) a comb (d) two clear glasses
4. 4.True or false: a balloon is needed for the paper helicopter. (a) True (b) False
5. 5.🛟 What should you do with wet floors after the experiment? (a) wipe them dry (b) leave them wet (c) pour more water (d) slide on them
6. 6.🚁 Which of these falls slowly through the air? (a) a glass marble (b) a crumpled paper ball (c) a coin (d) a feather
7. 7.🛟 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
8. 8.🔍 Which is the odd one out? (a) air (b) cooking oil (c) honey (d) an ice cube
9. 9.⚖️ Fair test — does the shape of a lump of clay change whether it floats? True or false: whether it floats is what we measure. (a) False (b) True
10. 10.🧺 Which of these is needed for the density tower? (a) a magnet (b) turmeric powder (c) cooking oil (d) yeast
11. 11.True or false: a glass of water is not needed for the card-on-a-glass trick. (a) True (b) False
12. 12.True or false: turmeric powder is not needed for the density tower. (a) False (b) True
13. 13.🛟 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
14. 14.True or false: a teaspoon is not needed for the dissolving test. (a) False (b) True
15. 15.🔮 Predict: you blow the balloon up only a little. What happens? (a) it flies off the string (b) it goes less far (c) it turns into a kite (d) it goes much farther
16. 16.🌈 In VIBGYOR, what number colour is yellow?
17. 17.🌈 In VIBGYOR, what number colour is orange?
18. 18.🌈 In VIBGYOR, what number colour is green?
19. 19.🧺 Three of these are needed for the water rainbow. Which one is NOT needed? (a) bright sunlight (b) yeast (c) a sheet of white paper (d) a clear glass of water
20. 20.🍯 Which of these is less dense than water? (a) honey (b) an ice cube (c) a glass marble (d) a coin
21. 21.⚖️ Fair test — does a bigger balloon go farther along the string? What do we do with “distance it travels”? (a) we measure it (b) we keep it the same (c) we change it
22. 22.🔮 Predict: you blow up a balloon. What fills it? (a) smoke (b) water (c) sand (d) air
23. 23.🧺 Which of these is needed for the water cycle bowl? (a) a mirror (b) a balloon (c) a magnet (d) water
24. 24.🧺 Three of these are needed for the density tower. Which one is NOT needed? (a) cooking oil (b) honey (c) a balloon (d) a tall clear glass
25. 25.📘 What do we call water with sugar dissolved in it? (a) a magnet (b) a solution (c) a rainbow (d) a crystal
26. 26.🛟 Why should a grown-up watch when children play near a big tub of water? (a) to win a prize (b) to splash everyone (c) to keep children safe (d) to hide the corks
27. 27.💧 Why do water drops form on the outside of a glass of ice water? (a) the glass leaks (b) the glass sweats (c) ice escapes the glass (d) vapour in air cools
28. 28.🧺 Three of these are needed for the water rainbow. Which one is NOT needed? (a) a sheet of white paper (b) a sunny window (c) a battery cell (d) a clear glass of water
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 order of the layers”? (a) we keep it the same (b) we change it (c) we measure it
30. 30.🔍 Which is the odd one out? (a) a compass needle (b) a bicycle pump (c) a vacuum cleaner (d) a drinking straw
31. 31.🚀 In “push back, move forward”, which way does water from the oars go? (a) goes forward (b) goes backward
32. 32.🛟 Which is the safe way to do the float-or-sink test? (a) run around the tub (b) play near a deep pond (c) leave water on the floor (d) wipe up spills at once
33. 33.🧺 Do we need a battery cell for the paper helicopter? (a) not needed (b) needed
34. 34.True or false: an ice-cream stick sinks in water. (a) True (b) False
35. 35.🧺 Which of these is needed for the float-or-sink test? (a) a battery cell (b) a mirror (c) a results table (d) a balloon
36. 36.True or false: a stone falls fast through the air. (a) False (b) True
37. 37.🔮 Predict: you add two more paper clips. How does it fall? (a) it floats up (b) slower (c) it stops in the air (d) faster
38. 38.🔮 Predict: a stem is split in two, one half in red water and one in blue. What do the petals do? (a) they turn two colours (b) they stay white (c) they fall off at once (d) they all turn green
39. 39.🧺 Do we need a tub of water for the float-or-sink test? (a) not needed (b) needed
40. 40.🔮 Predict: the string slopes uphill. What happens? (a) it speeds up (b) it travels less far (c) it travels farther (d) it goes backward first

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