Water and Air Experiments Test Worksheet

Science experiments lesson 10: Part 1 test: water and air · Set 371 · 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: a paper helicopter falls slowly through the air. (a) False (b) True
2. 2.🥛 Which of these works by air pressure? (a) a magnetic chess set (b) a bicycle pump (c) a fridge magnet (d) a magnetic pin holder
3. 3.True or false: a stone falls fast through the air. (a) False (b) True
4. 4.🛟 Why should only a grown-up handle any hot water? (a) it changes colour (b) hot water can scald (c) hot water is magnetic (d) hot water is heavy
5. 5.🛟 Which rule keeps you safe when working with sunlight? (a) look at it through glass (b) look at it in a mirror (c) never look at the Sun (d) stare at the Sun
6. 6.🥄 Which of these does not dissolve in water? (a) sugar (b) cooking oil (c) glucose powder (d) food colour
7. 7.True or false: a coin is less dense than water. (a) True (b) False
8. 8.🧺 Which of these is needed for the coloured flower experiment? (a) food colour (b) a magnet (c) yeast (d) a balloon
9. 9.True or false: a mirror is needed for the dissolving test. (a) False (b) True
10. 10.🍯 Which of these is denser than water? (a) an ice cube (b) air (c) a cork (d) a glass marble
11. 11.💧 Dip a piece of chalk into coloured water. Does the water climb up it? (a) water does not climb (b) water climbs up it
12. 12.🧺 Three of these are needed for the dissolving test. Which one is NOT needed? (a) a teaspoon (b) two clear glasses (c) warm water (d) a balloon
13. 13.True or false: cooking oil is needed for the density tower. (a) True (b) False
14. 14.🧺 Which of these is not needed for the dissolving test? (a) honey (b) warm water (c) sugar (d) two clear glasses
15. 15.🛟 Who should pour the warm water in the dissolving test? (a) nobody needs to (b) a friend who is running (c) a grown-up (d) the youngest child
16. 16.🧺 Which of these is not needed for the paper helicopter? (a) a battery cell (b) a paper clip (c) a pencil (d) safety scissors
17. 17.🚁 Dropped from a raised hand, does a crumpled paper ball fall slowly or fast? (a) falls fast (b) falls slowly
18. 18.🧺 Do we need a magnet for the density tower? (a) not needed (b) needed
19. 19.🛟 Which of these sinks in water? (a) a ping-pong ball (b) a piece of thermocol (c) an ice cube (d) a ball of clay
20. 20.🧺 Which of these is needed for the density tower? (a) cooking oil (b) turmeric powder (c) a battery cell (d) yeast
21. 21.🥛 Does a medicine dropper work by air pressure or by magnetism? (a) air pressure (b) magnetism
22. 22.🍯 Is a cork denser or less dense than water? (a) denser than water (b) less dense than water
23. 23.🛟 Who should trim the flower stem? (a) a pet (b) a toddler (c) anyone, without looking (d) a grown-up
24. 24.True or false: honey is needed for the dissolving test. (a) True (b) False
25. 25.🔍 Which is the odd one out? (a) a pebble (b) a coin (c) cooking oil (d) a glass marble
26. 26.🧺 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) a sheet of white paper (d) turmeric powder
27. 27.🔮 Predict: the string slopes uphill. What happens? (a) it travels less far (b) it speeds up (c) it goes backward first (d) it travels farther
28. 28.⚖️ Fair test — does the amount of water in the glass change how bright the rainbow is? True or false: the same white paper is the one thing we change. (a) False (b) True
29. 29.🛟 Where is a safe place to drop the helicopter from? (a) a wobbly chair (b) a roof edge (c) from your raised hand (d) a high window ledge
30. 30.🚁 Which of these falls slowly through the air? (a) a glass marble (b) a steel spoon (c) a stone (d) a feather
31. 31.🚁 Why does the paper helicopter fall slowly? (a) air pushes on its blades (b) the floor pushes it (c) a magnet holds it (d) it has no weight
32. 32.🛟 Why should we wipe up spilled oil at once? (a) oil makes it rain (b) oil turns into honey (c) spilled oil is slippery (d) oil attracts magnets
33. 33.🧺 Which of these is needed for the card-on-a-glass trick? (a) a balloon (b) a battery cell (c) a mirror (d) a towel
34. 34.🧺 Three of these are needed for the water cycle bowl. Which one is NOT needed? (a) a balloon (b) ice cubes (c) cling film (d) sunlight
35. 35.🧺 Which of these is needed for the water rainbow? (a) a battery cell (b) bright sunlight (c) a mirror (d) a magnet
36. 36.🔮 Predict: an empty capped bottle floats. What happens if you fill it with sand? (a) it melts (b) it turns blue (c) it floats higher (d) it sinks
37. 37.🔍 Which is the odd one out? (a) a feather (b) a coin (c) a glass marble (d) a steel spoon
38. 38.🥛 Which of these works by magnetism? (a) a drinking straw (b) a magnetic chess set (c) a vacuum cleaner (d) a bicycle pump
39. 39.🔮 What would change if the flower stood in plain water? (a) no colour change (b) the stem turns blue (c) the petals turn red (d) the flower glows
40. 40.🚁 Which of these falls slowly through the air? (a) a coin (b) a stone (c) a steel spoon (d) a fluff of cotton

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