Water and Air Experiments Test Worksheet

Science experiments lesson 10: Part 1 test: water and air · Set 258 · 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: water a swimmer pushes goes forward. (a) False (b) True
2. 2.🚁 Dropped from a raised hand, does an open sheet of paper fall slowly or fast? (a) falls slowly (b) falls fast
3. 3.⚖️ 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
4. 4.🥄 Does a big sugar cube dissolve faster or slower? (a) slower (b) faster
5. 5.⚖️ Fair test — does colour reach the petals faster with a short stem or a long stem? What do we do with “the kind of flower”? (a) we change it (b) we measure it (c) we keep it the same
6. 6.🧺 Three of these are needed for the balloon rocket. Which one is NOT needed? (a) vinegar (b) a long string (c) sticky tape (d) a balloon
7. 7.🥛 Why is it best to fill the glass right to the top? (a) water is heavier (b) the card gets wet (c) it looks nicer (d) little air left inside
8. 8.🥄 Does powdered sugar dissolve faster or slower? (a) faster (b) slower
9. 9.🔮 A big log and a small pebble go into a pond. Which one floats? (a) neither of them (b) both of them (c) the big log (d) the small pebble
10. 10.⚖️ Fair test — does the card stay on with a full glass and with a half-full glass? What do we do with “whether the card stays”? (a) we keep it the same (b) we measure it (c) we change it
11. 11.🛟 What should you do after handling food colour? (a) rub your eyes (b) lick your fingers (c) wash your hands (d) wipe them on walls
12. 12.True or false: honey is less dense than water. (a) True (b) False
13. 13.📘 What is it called when water climbs up thin tubes or paper by itself? (a) magnetism (b) evaporation (c) melting (d) capillary action
14. 14.🛟 Why should we wipe up spilled oil at once? (a) oil turns into honey (b) oil attracts magnets (c) spilled oil is slippery (d) oil makes it rain
15. 15.⚖️ Fair test — does colour reach the petals faster with a short stem or a long stem? What do we do with “the length of the stem”? (a) we keep it the same (b) we measure it (c) we change it
16. 16.🧺 Do we need honey for the density tower? (a) needed (b) not needed
17. 17.🧺 Three of these are needed for the water cycle bowl. Which one is NOT needed? (a) water (b) sunlight (c) a mirror (d) cling film
18. 18.🧺 Which of these is needed for the density tower? (a) a mirror (b) a magnet (c) a tall clear glass (d) a battery cell
19. 19.🧺 Which of these is not needed for the water cycle bowl? (a) a big bowl (b) cling film (c) a small cup (d) turmeric powder
20. 20.True or false: an empty capped bottle sinks in water. (a) False (b) True
21. 21.🎈 What is the job of the straw on the string? (a) it makes it heavier (b) it holds water (c) it guides the balloon (d) it blows air in
22. 22.🧺 Do we need a balloon for the float-or-sink test? (a) not needed (b) needed
23. 23.🧺 Which of these is not needed for the density tower? (a) a tall clear glass (b) a magnet (c) water with food colour (d) cooking oil
24. 24.🧺 Three of these are needed for the water rainbow. Which one is NOT needed? (a) a clear glass of water (b) a sunny window (c) bright sunlight (d) a mirror
25. 25.🛟 Why should only a grown-up handle any hot water? (a) hot water is magnetic (b) hot water is heavy (c) hot water can scald (d) it changes colour
26. 26.True or false: a magnet is needed for the balloon rocket. (a) True (b) False
27. 27.🧺 Which of these is needed for the water cycle bowl? (a) turmeric powder (b) a magnet (c) water (d) yeast
28. 28.🧺 Which of these is not needed for the balloon rocket? (a) sticky tape (b) a balloon (c) vinegar (d) a drinking straw
29. 29.🚁 Which of these falls slowly through the air? (a) a glass marble (b) a crumpled paper ball (c) a toy parachute (d) a coin
30. 30.⚖️ Fair test — does sugar dissolve faster in warm water or in cold water? True or false: the water temperature is kept the same. (a) True (b) False
31. 31.⚖️ Fair test — does the amount of water in the glass change how bright the rainbow is? Which of these is kept the same? (a) the amount of water (b) the time of day (c) brightness of rainbow
32. 32.True or false: a strip of paper is not needed for the paper helicopter. (a) False (b) True
33. 33.⚖️ Fair test — does colour reach the petals faster with a short stem or a long stem? True or false: the length of the stem is what we measure. (a) False (b) True
34. 34.⚖️ 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
35. 35.⚖️ Fair test — does a bigger balloon go farther along the string? What do we do with “how big we blow it”? (a) we keep it the same (b) we change it (c) we measure it
36. 36.True or false: a balloon is not needed for the paper helicopter. (a) True (b) False
37. 37.🧺 Three of these are needed for the paper helicopter. Which one is NOT needed? (a) a strip of paper (b) safety scissors (c) a paper clip (d) a battery cell
38. 38.🧺 Which of these is not needed for the dissolving test? (a) a teaspoon (b) warm water (c) a magnet (d) two clear glasses
39. 39.🍯 Is a coin denser or less dense than water? (a) less dense than water (b) denser than water
40. 40.🔍 Which is the odd one out? (a) making ice lollies (b) a pond icing over (c) water becoming ice (d) dew on morning grass

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