Water and Air Experiments Test Worksheet

Science experiments lesson 10: Part 1 test: water and air · Set 660 · 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 pond icing over is freezing. (a) False (b) True
2. 2.🧺 Which of these is not needed for the float-or-sink test? (a) a results table (b) a mirror (c) a tub of water (d) small test objects
3. 3.📘 What does “dense” mean? (a) very thin (b) very colourful (c) heavy for its size (d) very hot
4. 4.🧺 Three of these are needed for the float-or-sink test. Which one is NOT needed? (a) turmeric powder (b) a towel for spills (c) small test objects (d) a tub of water
5. 5.⚖️ Fair test — does the card stay on with a full glass and with a half-full glass? What do we do with “whether the card stays”? (a) we measure it (b) we keep it the same (c) we change it
6. 6.🛟 Why is a plastic cup safer than a glass for small children here? (a) it is magnetic (b) it will not break (c) it is hotter (d) it is heavier
7. 7.🌈 How many colours do we name in a rainbow (VIBGYOR)?
8. 8.⚖️ 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 glass is kept the same. (a) False (b) True
9. 9.True or false: turmeric powder is not needed for the card-on-a-glass trick. (a) True (b) False
10. 10.⚖️ Fair test — does colour reach the petals faster with a short stem or a long stem? Which of these is kept the same? (a) the kind of flower (b) the length of the stem (c) time for colour to show
11. 11.True or false: two chairs is needed for the balloon rocket. (a) False (b) True
12. 12.🧺 Which of these is not needed for the dissolving test? (a) two clear glasses (b) a clock or timer (c) sugar (d) a comb
13. 13.🧺 Three of these are needed for the card-on-a-glass trick. Which one is NOT needed? (a) a glass of water (b) a sink or a bucket (c) a towel (d) a battery cell
14. 14.🛟 Which scissors should children use to cut the paper? (a) safety scissors (b) sharp kitchen shears (c) gardening shears (d) a paper cutter
15. 15.🧺 Do we need a magnet for the paper helicopter? (a) not needed (b) needed
16. 16.True or false: a spoon is needed for the density tower. (a) True (b) False
17. 17.⚖️ 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) False (b) True
18. 18.🥄 Does a big sugar cube dissolve faster or slower? (a) slower (b) faster
19. 19.⚖️ Fair test — does a bigger balloon go farther along the string? True or false: how big we blow it is what we measure. (a) True (b) False
20. 20.🔮 What happens if a cloud covers the Sun during the rainbow experiment? (a) the rainbow fades (b) it floats away (c) it turns brighter (d) it turns all red
21. 21.🚁 Which of these falls fast through the air? (a) a feather (b) a paper helicopter (c) a glass marble (d) a fluff of cotton
22. 22.📘 What is water vapour? (a) a kind of smoke (b) salty water (c) water as a gas (d) tiny ice cubes
23. 23.🧺 Three of these are needed for the balloon rocket. Which one is NOT needed? (a) a balloon (b) sticky tape (c) a drinking straw (d) a magnet
24. 24.⚖️ 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 three liquids”? (a) we measure it (b) we keep it the same (c) we change it
25. 25.⚖️ 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 “how much of each liquid”? (a) we measure it (b) we change it (c) we keep it the same
26. 26.🍯 Which of these is less dense than water? (a) a cork (b) a pebble (c) honey (d) a glass marble
27. 27.🧺 Which of these is needed for the balloon rocket? (a) a magnet (b) a battery cell (c) a balloon (d) vinegar
28. 28.🥛 Does a compass needle work by air pressure or by magnetism? (a) magnetism (b) air pressure
29. 29.🧺 Which of these is not needed for the water rainbow? (a) a sheet of white paper (b) a sunny window (c) a clear glass of water (d) a mirror
30. 30.⚖️ Fair test — does a bowl in the sun make more drops than a bowl in the shade? Which of these is kept the same? (a) the size of the bowl (b) sun or shade (c) how many drops form
31. 31.🧺 Which of these is needed for the dissolving test? (a) a mirror (b) a magnet (c) a clock or timer (d) a comb
32. 32.💧 Which change is this: wet hair drying? (a) freezing (b) evaporation (c) condensation (d) melting
33. 33.⚖️ Fair test — do longer blades make the paper helicopter fall more slowly? True or false: the length of the blades is the one thing we change. (a) False (b) True
34. 34.True or false: a balloon is not needed for the dissolving test. (a) True (b) False
35. 35.🧺 Which of these is needed for the density tower? (a) a magnet (b) yeast (c) a balloon (d) water with food colour
36. 36.🧺 Do we need turmeric powder for the card-on-a-glass trick? (a) needed (b) not needed
37. 37.⚖️ Fair test — does colour reach the petals faster with a short stem or a long stem? Which of these is what we measure? (a) the amount of water (b) the kind of flower (c) the amount of colour (d) time for colour to show
38. 38.⚖️ Fair test — does colour reach the petals faster with a short stem or a long stem? Which of these is the one thing we change? (a) time for colour to show (b) the amount of water (c) the length of the stem (d) the amount of colour
39. 39.🔮 Predict: does stirring make sugar dissolve faster or slower? (a) the same (b) not at all (c) slower (d) faster
40. 40.🔮 What would change if the flower stood in plain water? (a) the flower glows (b) the petals turn red (c) the stem turns blue (d) no colour change

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