Water and Air Experiments Test Worksheet

Science experiments lesson 10: Part 1 test: water and air · Set 773 · 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 — does a bigger balloon go farther along the string? True or false: the same tape is what we measure. (a) True (b) False
2. 2.True or false: an empty capped bottle sinks in water. (a) False (b) True
3. 3.🧺 Do we need turmeric powder for the paper helicopter? (a) not needed (b) needed
4. 4.🥄 Does baking soda dissolve in water? (a) does not dissolve (b) dissolves in water
5. 5.⚖️ Fair test — does a bowl in the sun make more drops than a bowl in the shade? Which of these is what we measure? (a) the cling film cover (b) how many drops form (c) the amount of water (d) sun or shade
6. 6.🧺 Three of these are needed for the density tower. Which one is NOT needed? (a) a spoon (b) a tall clear glass (c) honey (d) a magnet
7. 7.🥄 Which of these does not dissolve in water? (a) sugar (b) chalk powder (c) glucose powder (d) table salt
8. 8.⚖️ Fair test — do longer blades make the paper helicopter fall more slowly? Which of these is what we measure? (a) the drop height (b) the length of the blades (c) time to reach the floor (d) the person dropping
9. 9.🛟 Does an ice cube float or sink in water? (a) floats (b) sinks
10. 10.🔍 Which is the odd one out? (a) honey (b) a glass marble (c) an ice cube (d) a coin
11. 11.🛟 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
12. 12.💧 Which change is this: wet clothes drying? (a) condensation (b) freezing (c) melting (d) evaporation
13. 13.⚖️ Fair test — do longer blades make the paper helicopter fall more slowly? Which of these is the one thing we change? (a) time to reach the floor (b) the paper clip (c) the kind of paper (d) the length of the blades
14. 14.True or false: a cork is denser than water. (a) True (b) False
15. 15.🌈 In VIBGYOR, what number colour is green?
16. 16.🧺 Which of these is not needed for the paper helicopter? (a) a pencil (b) safety scissors (c) a mirror (d) a strip of paper
17. 17.🥄 Does sugar in warm water dissolve faster or slower? (a) faster (b) slower
18. 18.🌈 How many colours do we name in a rainbow (VIBGYOR)?
19. 19.⚖️ Fair test — does a bigger balloon go farther along the string? What do we do with “the same string”? (a) we keep it the same (b) we measure it (c) we change it
20. 20.True or false: a balloon is needed for the water rainbow. (a) False (b) True
21. 21.🛟 Why should the glass of water stand on a steady, flat place? (a) so the Sun moves (b) so it turns blue (c) so it does not fall (d) so it gets hot
22. 22.🧺 Which of these is needed for the water cycle bowl? (a) yeast (b) a magnet (c) sunlight (d) a battery cell
23. 23.🥄 Does chalk powder dissolve in water? (a) does not dissolve (b) dissolves in water
24. 24.🧺 Do we need bright sunlight for the water rainbow? (a) not needed (b) needed
25. 25.🔍 Which is the odd one out? (a) a steel spoon (b) an empty capped bottle (c) an ice cube (d) a ping-pong ball
26. 26.🧺 Which of these is needed for the water rainbow? (a) turmeric powder (b) yeast (c) a sunny window (d) a mirror
27. 27.🔍 Which is the odd one out? (a) air (b) a cork (c) cooking oil (d) very salty water
28. 28.🌈 In a rainbow in the sky, which colour is on the inside (bottom) edge? (a) red (b) orange (c) yellow (d) violet
29. 29.🧺 Do we need a magnet for the water rainbow? (a) needed (b) not needed
30. 30.⚖️ Fair test — does colour reach the petals faster with a short stem or a long stem? True or false: the room it stands in is what we measure. (a) True (b) False
31. 31.🧺 Do we need a towel for the card-on-a-glass trick? (a) not needed (b) needed
32. 32.🧺 Do we need a balloon for the water rainbow? (a) not needed (b) needed
33. 33.True or false: drops under a pot lid is freezing. (a) False (b) True
34. 34.🔍 Which is the odd one out? (a) a coin (b) a pebble (c) a piece of thermocol (d) an iron nail
35. 35.💧 Which change is this: wet hair drying? (a) melting (b) evaporation (c) condensation (d) freezing
36. 36.⚖️ Fair test — does colour reach the petals faster with a short stem or a long stem? True or false: the kind of flower is kept the same. (a) True (b) False
37. 37.⚖️ Fair test — does a bigger balloon go farther along the string? What do we do with “the slope of the string”? (a) we measure it (b) we change it (c) we keep it the same
38. 38.True or false: two chairs is not needed for the balloon rocket. (a) False (b) True
39. 39.🧺 Do we need a battery cell for the density tower? (a) needed (b) not needed
40. 40.True or false: a towel is not needed for the card-on-a-glass trick. (a) True (b) False

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