Water and Air Experiments Test Worksheet

Science experiments lesson 10: Part 1 test: water and air · Set 30 · 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.🧺 Three of these are needed for the water cycle bowl. Which one is NOT needed? (a) turmeric powder (b) water (c) cling film (d) a small cup
2. 2.True or false: a pebble is less dense than water. (a) False (b) True
3. 3.🔮 Predict: you use a rough, thick string instead of a smooth one. (a) no change at all (b) less friction (c) it goes faster (d) more friction, less far
4. 4.🧺 Three of these are needed for the float-or-sink test. Which one is NOT needed? (a) a results table (b) small test objects (c) a balloon (d) a tub of water
5. 5.🌈 In VIBGYOR, what number colour is green?
6. 6.True or false: wet clothes drying is freezing. (a) False (b) True
7. 7.🧺 Three of these are needed for the float-or-sink test. Which one is NOT needed? (a) small test objects (b) a towel for spills (c) a battery cell (d) a tub of water
8. 8.⚖️ Fair test — do the layers end up in the same order if we pour the liquids in a different order? True or false: the order of pouring is kept the same. (a) False (b) True
9. 9.⚖️ Fair test — does the shape of a lump of clay change whether it floats? What do we do with “the shape of the clay”? (a) we keep it the same (b) we measure it (c) we change it
10. 10.⚖️ Fair test — does a bowl in the sun make more drops than a bowl in the shade? What do we do with “the time we wait”? (a) we keep it the same (b) we change it (c) we measure it
11. 11.True or false: water is not needed for the water cycle bowl. (a) True (b) False
12. 12.⚖️ 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 kept the same. (a) True (b) False
13. 13.🔍 Which is the odd one out? (a) small pebbles (b) table salt (c) glucose powder (d) food colour
14. 14.⚖️ Fair test — do longer blades make the paper helicopter fall more slowly? True or false: the drop height is what we measure. (a) False (b) True
15. 15.🔍 Which is the odd one out? (a) a metal key (b) a glass marble (c) a ball of clay (d) a cork
16. 16.🧺 Which of these is needed for the balloon rocket? (a) two chairs (b) a battery cell (c) a magnet (d) vinegar
17. 17.🧺 Do we need two clear glasses for the dissolving test? (a) not needed (b) needed
18. 18.⚖️ Fair test — does sugar dissolve faster in warm water or in cold water? What do we do with “the kind of sugar”? (a) we change it (b) we keep it the same (c) we measure it
19. 19.🧺 Which of these is needed for the card-on-a-glass trick? (a) a battery cell (b) turmeric powder (c) a magnet (d) a glass of water
20. 20.🧺 Three of these are needed for the water cycle bowl. Which one is NOT needed? (a) a balloon (b) a big bowl (c) water (d) a small cup
21. 21.🧺 Which of these is not needed for the float-or-sink test? (a) a results table (b) a towel for spills (c) small test objects (d) a magnet
22. 22.🧺 Do we need a battery cell for the paper helicopter? (a) needed (b) not needed
23. 23.🔍 Which is the odd one out? (a) small pebbles (b) sawdust (c) sand (d) glucose powder
24. 24.⚖️ Fair test — does sugar dissolve faster in warm water or in cold water? Which of these is the one thing we change? (a) the water temperature (b) the stirring (c) the kind of sugar (d) time to dissolve
25. 25.⚖️ Fair test — does the shape of a lump of clay change whether it floats? True or false: the tub of water is the one thing we change. (a) True (b) False
26. 26.🧺 Which of these is needed for the float-or-sink test? (a) yeast (b) turmeric powder (c) small test objects (d) a balloon
27. 27.🧺 Three of these are needed for the water rainbow. Which one is NOT needed? (a) bright sunlight (b) a magnet (c) a sheet of white paper (d) a sunny window
28. 28.🧺 Three of these are needed for the card-on-a-glass trick. Which one is NOT needed? (a) a stiff postcard (b) a glass of water (c) a balloon (d) a sink or a bucket
29. 29.🔍 Which is the odd one out? (a) an empty capped bottle (b) an iron nail (c) a piece of thermocol (d) a ping-pong ball
30. 30.⚖️ Fair test — does a bigger balloon go farther along the string? Which of these is what we measure? (a) the slope of the string (b) distance it travels (c) the same string (d) how big we blow it
31. 31.⚖️ Fair test — does a bigger balloon go farther along the string? Which of these is kept the same? (a) the same tape (b) how big we blow it (c) distance it travels
32. 32.⚖️ Fair test — does a bigger balloon go farther along the string? True or false: distance it travels is what we measure. (a) True (b) False
33. 33.🧺 Do we need honey for the dissolving test? (a) not needed (b) needed
34. 34.🛟 What should you do after handling food colour? (a) rub your eyes (b) wipe them on walls (c) lick your fingers (d) wash your hands
35. 35.🛟 Which of these floats on water? (a) a steel spoon (b) a pebble (c) a coin (d) a cork
36. 36.True or false: the rowing boat goes forward. (a) True (b) False
37. 37.🧺 Which of these is not needed for the coloured flower experiment? (a) a few hours of waiting (b) turmeric powder (c) food colour (d) a white flower
38. 38.True or false: yeast is needed for the card-on-a-glass trick. (a) False (b) True
39. 39.🔮 A big log and a small pebble go into a pond. Which one floats? (a) both of them (b) neither of them (c) the small pebble (d) the big log
40. 40.🌈 In VIBGYOR, what number colour is yellow?

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