Water and Air Experiments Test Worksheet

Science experiments lesson 10: Part 1 test: water and air · Set 973 · 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) sunlight (b) a small cup (c) a mirror (d) a big bowl
2. 2.🧺 Which of these is needed for the card-on-a-glass trick? (a) yeast (b) a magnet (c) a mirror (d) a sink or a bucket
3. 3.True or false: turmeric powder is not needed for the float-or-sink test. (a) False (b) True
4. 4.⚖️ Fair test — does a bowl in the sun make more drops than a bowl in the shade? Which of these is the one thing we change? (a) the amount of water (b) sun or shade (c) the cling film cover (d) the size of the bowl
5. 5.🧺 Do we need honey for the dissolving test? (a) needed (b) not needed
6. 6.⚖️ Fair test — does a bigger balloon go farther along the string? What do we do with “distance it travels”? (a) we measure it (b) we keep it the same (c) we change it
7. 7.⚖️ Fair test — does the amount of water in the glass change how bright the rainbow is? True or false: brightness of rainbow is what we measure. (a) True (b) False
8. 8.True or false: a feather sinks in water. (a) True (b) False
9. 9.🧺 Which of these is needed for the coloured flower experiment? (a) a white flower (b) yeast (c) a mirror (d) a magnet
10. 10.⚖️ Fair test — does the card stay on with a full glass and with a half-full glass? What do we do with “the way we turn it”? (a) we measure it (b) we change it (c) we keep it the same
11. 11.⚖️ Fair test — does the amount of water in the glass change how bright the rainbow is? What do we do with “the same glass”? (a) we change it (b) we measure it (c) we keep it the same
12. 12.True or false: cling film is not needed for the water cycle bowl. (a) True (b) False
13. 13.🔍 Which is the odd one out? (a) a fridge magnet (b) a vacuum cleaner (c) a compass needle (d) a magnetic chess set
14. 14.💧 Which of these is freezing? (a) butter going runny (b) sweat drying on skin (c) a pond icing over (d) wet hair drying
15. 15.⚖️ Fair test — does a bigger balloon go farther along the string? Which of these is what we measure? (a) the same string (b) distance it travels (c) the same straw (d) how big we blow it
16. 16.⚖️ Fair test — does sugar dissolve faster in warm water or in cold water? True or false: the kind of sugar is the one thing we change. (a) False (b) True
17. 17.📘 What do we call light bending as it passes from air into water? (a) evaporation (b) refraction (c) reflection (d) magnetism
18. 18.🔍 Which is the odd one out? (a) very salty water (b) a glass marble (c) an ice cube (d) honey
19. 19.⚖️ Fair test — does the card stay on with a full glass and with a half-full glass? Which of these is the one thing we change? (a) the same card (b) how full the glass is (c) whether the card stays (d) the same glass
20. 20.🔍 Which is the odd one out? (a) a stone (b) a coin (c) a paper helicopter (d) a steel spoon
21. 21.True or false: a tub of water is not needed for the float-or-sink test. (a) True (b) False
22. 22.🧺 Three of these are needed for the dissolving test. Which one is NOT needed? (a) a teaspoon (b) a comb (c) a clock or timer (d) warm water
23. 23.🔮 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
24. 24.🥛 Why is it best to fill the glass right to the top? (a) the card gets wet (b) little air left inside (c) water is heavier (d) it looks nicer
25. 25.🥛 Which of these works by air pressure? (a) a magnetic pin holder (b) a bicycle pump (c) a compass needle (d) a magnetic chess set
26. 26.🧺 Three of these are needed for the density tower. Which one is NOT needed? (a) yeast (b) a tall clear glass (c) water with food colour (d) honey
27. 27.⚖️ Fair test — does the shape of a lump of clay change whether it floats? True or false: the amount of clay is kept the same. (a) False (b) True
28. 28.💧 What happens to water vapour when it touches the cold cling film? (a) it turns to salt (b) it turns to smoke (c) it disappears (d) it turns to drops
29. 29.⚖️ Fair test — does the card stay on with a full glass and with a half-full glass? Which of these is what we measure? (a) the same glass (b) the way we turn it (c) the same card (d) whether the card stays
30. 30.🧺 Which of these is needed for the water cycle bowl? (a) cling film (b) a magnet (c) yeast (d) a mirror
31. 31.🛟 Why should we wipe up spilled oil at once? (a) spilled oil is slippery (b) oil makes it rain (c) oil turns into honey (d) oil attracts magnets
32. 32.True or false: a puddle drying up is condensation. (a) True (b) False
33. 33.⚖️ Fair test — does colour reach the petals faster with a short stem or a long stem? What do we do with “the amount of colour”? (a) we change it (b) we measure it (c) we keep it the same
34. 34.🛟 Which of these floats on water? (a) an iron nail (b) a ball of clay (c) an empty capped bottle (d) a steel spoon
35. 35.⚖️ 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 kept the same. (a) True (b) False
36. 36.🥄 Does powdered sugar dissolve faster or slower? (a) faster (b) slower
37. 37.⚖️ Fair test — does sugar dissolve faster in warm water or in cold water? What do we do with “the water temperature”? (a) we measure it (b) we keep it the same (c) we change it
38. 38.True or false: water becoming ice is condensation. (a) False (b) True
39. 39.🧺 Which of these is needed for the paper helicopter? (a) a balloon (b) a battery cell (c) yeast (d) a paper clip
40. 40.True or false: the rowing boat goes forward. (a) True (b) False

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