Water and Air Experiments Test Worksheet

Science experiments lesson 10: Part 1 test: water and air · Set 206 · 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: yeast is needed for the water cycle bowl. (a) False (b) True
2. 2.🔮 Predict: a stem is split in two, one half in red water and one in blue. What do the petals do? (a) they all turn green (b) they fall off at once (c) they stay white (d) they turn two colours
3. 3.🧺 Which of these is not needed for the dissolving test? (a) sugar (b) cotton wool (c) warm water (d) two clear glasses
4. 4.🥄 Does sugar stirred well dissolve faster or slower? (a) slower (b) faster
5. 5.🔮 A big log and a small pebble go into a pond. Which one floats? (a) neither of them (b) the small pebble (c) both of them (d) the big log
6. 6.🧺 Do we need a mirror for the coloured flower experiment? (a) needed (b) not needed
7. 7.🛟 Why should we wipe up spilled oil at once? (a) oil turns into honey (b) oil makes it rain (c) spilled oil is slippery (d) oil attracts magnets
8. 8.🔮 Predict: you squeeze an empty plastic bottle with its cap screwed on tight. Why is it hard? (a) the bottle is magnetic (b) air inside pushes back (c) water is hiding there (d) the cap is sticky
9. 9.🧺 Do we need a results table for the float-or-sink test? (a) needed (b) not needed
10. 10.⚖️ Fair test — does a bowl in the sun make more drops than a bowl in the shade? True or false: the time we wait is kept the same. (a) True (b) False
11. 11.🚁 Which of these falls slowly through the air? (a) a crumpled paper ball (b) a steel spoon (c) a stone (d) a toy parachute
12. 12.True or false: the rocket goes backward. (a) False (b) True
13. 13.🧺 Which of these is needed for the water rainbow? (a) turmeric powder (b) a magnet (c) yeast (d) bright sunlight
14. 14.⚖️ Fair test — do longer blades make the paper helicopter fall more slowly? Which of these is kept the same? (a) time to reach the floor (b) the length of the blades (c) the person dropping
15. 15.🧺 Three of these are needed for the card-on-a-glass trick. Which one is NOT needed? (a) a glass of water (b) a stiff postcard (c) a balloon (d) a towel
16. 16.True or false: a sheet of white paper is needed for the water rainbow. (a) True (b) False
17. 17.🧺 Do we need turmeric powder for the density tower? (a) not needed (b) needed
18. 18.⚖️ Fair test — does a bigger balloon go farther along the string? What do we do with “distance it travels”? (a) we change it (b) we keep it the same (c) we measure it
19. 19.🚁 Which of these falls slowly through the air? (a) a glass marble (b) a crumpled paper ball (c) a coin (d) an open sheet of paper
20. 20.🥛 Which of these works by magnetism? (a) a fridge magnet (b) a drinking straw (c) a bicycle pump (d) a vacuum cleaner
21. 21.🧺 Which of these is needed for the coloured flower experiment? (a) a glass of water (b) turmeric powder (c) a battery cell (d) yeast
22. 22.🧺 Do we need a magnet for the balloon rocket? (a) not needed (b) needed
23. 23.🧺 Three of these are needed for the water cycle bowl. Which one is NOT needed? (a) water (b) sunlight (c) a magnet (d) cling film
24. 24.True or false: a dry leaf sinks in water. (a) False (b) True
25. 25.True or false: a bicycle pump works by magnetism. (a) True (b) False
26. 26.🛟 Why should you not over-blow the balloon? (a) it can pop loudly (b) it turns into a kite (c) it gets too heavy (d) it changes colour
27. 27.⚖️ Fair test — does the amount of water in the glass change how bright the rainbow is? What do we do with “the time of day”? (a) we measure it (b) we keep it the same (c) we change it
28. 28.🧺 Which of these is not needed for the dissolving test? (a) warm water (b) honey (c) cold water (d) two clear glasses
29. 29.🧺 Do we need honey for the dissolving test? (a) needed (b) not needed
30. 30.🚀 Which of these goes forward? (a) water from the oars (b) gas from the rocket (c) the swimmer (d) air from the balloon
31. 31.🧺 Which of these is needed for the dissolving test? (a) cotton wool (b) a balloon (c) a magnet (d) warm water
32. 32.🧺 Three of these are needed for the dissolving test. Which one is NOT needed? (a) sugar (b) cotton wool (c) cold water (d) two clear glasses
33. 33.⚖️ Fair test — does the amount of water in the glass change how bright the rainbow is? True or false: the amount of water is kept the same. (a) False (b) True
34. 34.🚁 Which of these falls fast through the air? (a) a coin (b) a paper helicopter (c) an open sheet of paper (d) a feather
35. 35.🧺 Do we need a tub of water for the float-or-sink test? (a) not needed (b) needed
36. 36.⚖️ Fair test — does the amount of water in the glass change how bright the rainbow is? Which of these is kept the same? (a) the amount of water (b) the same glass (c) brightness of rainbow
37. 37.⚖️ Fair test — do the layers end up in the same order if we pour the liquids in a different order? What do we do with “the same glass”? (a) we change it (b) we measure it (c) we keep it the same
38. 38.🔍 Which is the odd one out? (a) an open sheet of paper (b) a stone (c) a paper helicopter (d) a fluff of cotton
39. 39.📘 What do we call light bending as it passes from air into water? (a) evaporation (b) reflection (c) magnetism (d) refraction
40. 40.🥤 Why does juice go up a drinking straw when you sip? (a) the straw is magnetic (b) juice likes plastic (c) air pushes it up (d) the straw is hot

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