Water and Air Experiments Test Worksheet

Science experiments lesson 10: Part 1 test: water and air · Set 514 · 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 falls fast through the air? (a) an open sheet of paper (b) a paper helicopter (c) a toy parachute (d) a crumpled paper ball
2. 2.🧺 Three of these are needed for the balloon rocket. Which one is NOT needed? (a) a magnet (b) a balloon (c) a long string (d) a drinking straw
3. 3.🥛 Does a suction hook work by air pressure or by magnetism? (a) air pressure (b) magnetism
4. 4.🧺 Which of these is needed for the balloon rocket? (a) a battery cell (b) a mirror (c) a long string (d) turmeric powder
5. 5.⚖️ Fair test — do the layers end up in the same order if we pour the liquids in a different order? Which of these is kept the same? (a) the order of pouring (b) how much of each liquid (c) the order of the layers
6. 6.True or false: a tub of water is not needed for the float-or-sink test. (a) True (b) False
7. 7.⚖️ Fair test — does colour reach the petals faster with a short stem or a long stem? True or false: time for colour to show is the one thing we change. (a) False (b) True
8. 8.⚖️ Fair test — does the shape of a lump of clay change whether it floats? What do we do with “the tub of water”? (a) we change it (b) we measure it (c) we keep it the same
9. 9.🌈 In VIBGYOR, what number colour is violet?
10. 10.🧺 Do we need a battery cell for the paper helicopter? (a) not needed (b) needed
11. 11.True or false: a magnet is needed for the dissolving test. (a) True (b) False
12. 12.🧺 Three of these are needed for the float-or-sink test. Which one is NOT needed? (a) small test objects (b) a tub of water (c) a mirror (d) a towel for spills
13. 13.🧺 Three of these are needed for the balloon rocket. Which one is NOT needed? (a) two chairs (b) a long string (c) sticky tape (d) vinegar
14. 14.🧺 Three of these are needed for the float-or-sink test. Which one is NOT needed? (a) a tub of water (b) yeast (c) a results table (d) small test objects
15. 15.🌊 What pushes a floating cork upward? (a) the tub (b) the cork itself (c) the air above (d) the water
16. 16.🧺 Which of these is not needed for the density tower? (a) a tall clear glass (b) honey (c) a balloon (d) cooking oil
17. 17.⚖️ 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) the amount of water (b) how many drops form (c) sun or shade
18. 18.🥄 Which of these dissolves in water? (a) glucose powder (b) sawdust (c) sand (d) cooking oil
19. 19.🧺 Do we need a mirror for the density tower? (a) needed (b) not needed
20. 20.⚖️ 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 keep it the same (c) we measure it
21. 21.True or false: cling film is not needed for the water cycle bowl. (a) True (b) False
22. 22.🧺 Do we need a mirror for the float-or-sink test? (a) not needed (b) needed
23. 23.🔮 Predict: you blow the balloon up only a little. What happens? (a) it flies off the string (b) it goes much farther (c) it turns into a kite (d) it goes less far
24. 24.🧺 Which of these is not needed for the card-on-a-glass trick? (a) a mirror (b) a glass of water (c) a towel (d) a sink or a bucket
25. 25.⚖️ Fair test — does the shape of a lump of clay change whether it floats? True or false: whether it floats is kept the same. (a) True (b) False
26. 26.🧺 Which of these is needed for the paper helicopter? (a) a strip of paper (b) a balloon (c) yeast (d) a battery cell
27. 27.⚖️ 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 measure it (c) we change it
28. 28.🌼 How does coloured water reach the petals? (a) it is sprayed on (b) through the air (c) through tiny stem tubes (d) it rains on them
29. 29.⚖️ Fair test — does a bigger balloon go farther along the string? Which of these is kept the same? (a) how big we blow it (b) distance it travels (c) the same tape
30. 30.🎈 Air rushes out of the back of the balloon. Which way does the balloon move? (a) straight down (b) it stays still (c) backward (d) forward
31. 31.⚖️ Fair test — does the shape of a lump of clay change whether it floats? Which of these is what we measure? (a) the amount of clay (b) whether it floats (c) the shape of the clay (d) the kind of clay
32. 32.True or false: a magnet is needed for the coloured flower experiment. (a) False (b) True
33. 33.🥄 Does sugar in warm water dissolve faster or slower? (a) faster (b) slower
34. 34.True or false: a mirror is not needed for the float-or-sink test. (a) False (b) True
35. 35.🍯 Is honey denser or less dense than water? (a) denser than water (b) less dense than water
36. 36.⚖️ Fair test — do longer blades make the paper helicopter fall more slowly? Which of these is the one thing we change? (a) the length of the blades (b) the person dropping (c) the drop height (d) the kind of paper
37. 37.🧺 Which of these is needed for the card-on-a-glass trick? (a) a battery cell (b) yeast (c) a mirror (d) a towel
38. 38.📘 Air presses on everything around us. What is this push called? (a) friction (b) air pressure (c) sunlight (d) magnetism
39. 39.🧺 Three of these are needed for the balloon rocket. Which one is NOT needed? (a) yeast (b) a drinking straw (c) a long string (d) sticky tape
40. 40.🧺 Which of these is not needed for the coloured flower experiment? (a) a few hours of waiting (b) a magnet (c) food colour (d) a glass of water

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