Water and Air Experiments Test Worksheet

Science experiments lesson 10: Part 1 test: water and air · Set 766 · 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.🛟 Does an ice-cream stick float or sink in water? (a) floats (b) sinks
2. 2.📘 What is it called when water climbs up thin tubes or paper by itself? (a) evaporation (b) magnetism (c) melting (d) capillary action
3. 3.🥛 Does a magnetic chess set work by air pressure or by magnetism? (a) air pressure (b) magnetism
4. 4.🧺 Which of these is needed for the float-or-sink test? (a) a balloon (b) a magnet (c) turmeric powder (d) a tub of water
5. 5.🧺 Which of these is needed for the density tower? (a) a magnet (b) a mirror (c) a battery cell (d) a spoon
6. 6.⚖️ 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 order of the layers”? (a) we measure it (b) we change it (c) we keep it the same
7. 7.True or false: sticky tape is needed for the balloon rocket. (a) False (b) True
8. 8.⚖️ Fair test — do longer blades make the paper helicopter fall more slowly? What do we do with “the kind of paper”? (a) we measure it (b) we keep it the same (c) we change it
9. 9.🔮 Predict: does stirring make sugar dissolve faster or slower? (a) slower (b) the same (c) faster (d) not at all
10. 10.True or false: a tub of water is needed for the float-or-sink test. (a) True (b) False
11. 11.🧺 Three of these are needed for the dissolving test. Which one is NOT needed? (a) a teaspoon (b) a balloon (c) cold water (d) sugar
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 balloon (d) a towel for spills
13. 13.True or false: a balloon is not needed for the coloured flower experiment. (a) False (b) True
14. 14.🧺 Three of these are needed for the dissolving test. Which one is NOT needed? (a) two clear glasses (b) honey (c) a teaspoon (d) sugar
15. 15.🧺 Three of these are needed for the dissolving test. Which one is NOT needed? (a) cotton wool (b) a clock or timer (c) warm water (d) cold water
16. 16.⚖️ Fair test — does the shape of a lump of clay change whether it floats? Which of these is what we measure? (a) the shape of the clay (b) whether it floats (c) the kind of clay (d) the amount of clay
17. 17.⚖️ Fair test — does sugar dissolve faster in warm water or in cold water? What do we do with “time to dissolve”? (a) we measure it (b) we keep it the same (c) we change it
18. 18.🧺 Which of these is needed for the coloured flower experiment? (a) a battery cell (b) a white flower (c) a balloon (d) yeast
19. 19.📘 What do we call light bending as it passes from air into water? (a) magnetism (b) evaporation (c) refraction (d) reflection
20. 20.⚖️ Fair test — does sugar dissolve faster in warm water or in cold water? What do we do with “the water temperature”? (a) we change it (b) we measure it (c) we keep it the same
21. 21.⚖️ Fair test — does the amount of water in the glass change how bright the rainbow is? True or false: the same glass is the one thing we change. (a) False (b) True
22. 22.💧 What happens to water vapour when it touches the cold cling film? (a) it disappears (b) it turns to smoke (c) it turns to drops (d) it turns to salt
23. 23.🚁 Dropped from a raised hand, does a fluff of cotton fall slowly or fast? (a) falls fast (b) falls slowly
24. 24.🍯 Is a coin denser or less dense than water? (a) less dense than water (b) denser than water
25. 25.⚖️ Fair test — does the shape of a lump of clay change whether it floats? What do we do with “whether it floats”? (a) we measure it (b) we keep it the same (c) we change it
26. 26.True or false: honey is not needed for the density tower. (a) False (b) True
27. 27.🧺 Three of these are needed for the coloured flower experiment. Which one is NOT needed? (a) a few hours of waiting (b) a mirror (c) a white flower (d) a glass of water
28. 28.⚖️ Fair test — does the card stay on with a full glass and with a half-full glass? What do we do with “the same card”? (a) we keep it the same (b) we measure it (c) we change it
29. 29.⚖️ Fair test — do the layers end up in the same order if we pour the liquids in a different order? True or false: the same three liquids is kept the same. (a) True (b) False
30. 30.🧺 Which of these is needed for the water rainbow? (a) a magnet (b) a mirror (c) a battery cell (d) a sheet of white paper
31. 31.🧺 Do we need turmeric powder for the float-or-sink test? (a) needed (b) not needed
32. 32.True or false: yeast is needed for the paper helicopter. (a) True (b) False
33. 33.⚖️ Fair test — does sugar dissolve faster in warm water or in cold water? What do we do with “the amount of sugar”? (a) we keep it the same (b) we change it (c) we measure it
34. 34.⚖️ 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 cling film cover (b) the time we wait (c) how many drops form (d) sun or shade
35. 35.🧺 Three of these are needed for the dissolving test. Which one is NOT needed? (a) sugar (b) a mirror (c) a clock or timer (d) a teaspoon
36. 36.🛟 Why should you not over-blow the balloon? (a) it changes colour (b) it turns into a kite (c) it gets too heavy (d) it can pop loudly
37. 37.🔍 Sugar is stirred into water and seems to disappear. Where did it go? (a) it vanished for ever (b) it spread in the water (c) it became air (d) it sank as sand
38. 38.🧺 Which of these is not needed for the card-on-a-glass trick? (a) a stiff postcard (b) a towel (c) turmeric powder (d) a sink or a bucket
39. 39.⚖️ Fair test — does sugar dissolve faster in warm water or in cold water? True or false: time to dissolve is kept the same. (a) True (b) False
40. 40.🧺 Three of these are needed for the density tower. Which one is NOT needed? (a) a battery cell (b) cooking oil (c) water with food colour (d) a tall clear glass

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