Water and Air Experiments Test Worksheet

Science experiments lesson 10: Part 1 test: water and air · Set 897 · 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.🧺 Which of these is not needed for the water cycle bowl? (a) ice cubes (b) a small cup (c) sunlight (d) a mirror
2. 2.💧 Which of these lets water climb up it? (a) a plastic ruler (b) a glass marble (c) a flower stem (d) a rubber eraser
3. 3.🛟 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
4. 4.🧺 Which of these is not needed for the density tower? (a) a spoon (b) cooking oil (c) a tall clear glass (d) a balloon
5. 5.🛟 Which scissors should children use to cut the paper? (a) gardening shears (b) a paper cutter (c) safety scissors (d) sharp kitchen shears
6. 6.🧺 Three of these are needed for the paper helicopter. Which one is NOT needed? (a) a strip of paper (b) a pencil (c) a balloon (d) a ruler
7. 7.⚖️ Fair test — does the card stay on with a full glass and with a half-full glass? True or false: how full the glass is is what we measure. (a) True (b) False
8. 8.🌼 Why do the petals keep pulling water up the stem? (a) the stem is hot (b) petals lose water to air (c) petals are magnetic (d) petals like colour
9. 9.🧺 Which of these is not needed for the coloured flower experiment? (a) a white flower (b) yeast (c) a glass of water (d) a few hours of waiting
10. 10.🍯 Is cooking oil denser or less dense than water? (a) less dense than water (b) denser than water
11. 11.🥄 Does powdered sugar dissolve faster or slower? (a) faster (b) slower
12. 12.🔍 Which is the odd one out? (a) a steel spoon (b) a glass marble (c) an iron nail (d) a piece of thermocol
13. 13.⚖️ Fair test — does the amount of water in the glass change how bright the rainbow is? Which of these is what we measure? (a) the same glass (b) brightness of rainbow (c) the same window (d) the time of day
14. 14.⚖️ Fair test — does a bigger balloon go farther along the string? Which of these is what we measure? (a) distance it travels (b) the slope of the string (c) the same tape (d) the same straw
15. 15.⚖️ 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) True (b) False
16. 16.🌦️ To see a rainbow in the sky, where must the Sun be? (a) in front of you (b) behind you (c) straight above you (d) under the ground
17. 17.🛟 Which rule keeps you safe when working with sunlight? (a) look at it through glass (b) look at it in a mirror (c) stare at the Sun (d) never look at the Sun
18. 18.True or false: turmeric powder is not needed for the water cycle bowl. (a) True (b) False
19. 19.💧 Which change is this: snow turning to water? (a) evaporation (b) condensation (c) melting (d) freezing
20. 20.💧 Why do water drops form on the outside of a glass of ice water? (a) the glass leaks (b) ice escapes the glass (c) the glass sweats (d) vapour in air cools
21. 21.🎈 What is the job of the straw on the string? (a) it holds water (b) it blows air in (c) it makes it heavier (d) it guides the balloon
22. 22.🧺 Three of these are needed for the float-or-sink test. Which one is NOT needed? (a) a results table (b) small test objects (c) a tub of water (d) a balloon
23. 23.🧺 Which of these is needed for the card-on-a-glass trick? (a) yeast (b) a glass of water (c) a battery cell (d) a magnet
24. 24.⚖️ Fair test — does the card stay on with a full glass and with a half-full glass? True or false: whether the card stays is kept the same. (a) True (b) False
25. 25.🧺 Three of these are needed for the float-or-sink test. Which one is NOT needed? (a) a battery cell (b) a results table (c) a tub of water (d) small test objects
26. 26.🧺 Do we need a magnet for the density tower? (a) needed (b) not needed
27. 27.🔮 What happens if a cloud covers the Sun during the rainbow experiment? (a) it turns all red (b) the rainbow fades (c) it floats away (d) it turns brighter
28. 28.🧺 Three of these are needed for the density tower. Which one is NOT needed? (a) a spoon (b) cooking oil (c) a balloon (d) a tall clear glass
29. 29.⚖️ Fair test — does the card stay on with a full glass and with a half-full glass? True or false: the way we turn it is the one thing we change. (a) True (b) False
30. 30.⚖️ Fair test — does sugar dissolve faster in warm water or in cold water? What do we do with “the amount of water”? (a) we change it (b) we keep it the same (c) we measure it
31. 31.⚖️ Fair test — do the layers end up in the same order if we pour the liquids in a different order? True or false: the order of pouring is what we measure. (a) True (b) False
32. 32.🥄 Does sugar dissolve in water? (a) does not dissolve (b) dissolves in water
33. 33.⚖️ Fair test — does the shape of a lump of clay change whether it floats? Which of these is the one thing we change? (a) the kind of clay (b) whether it floats (c) the shape of the clay (d) the tub of water
34. 34.🧺 Three of these are needed for the float-or-sink test. Which one is NOT needed? (a) a towel for spills (b) small test objects (c) a results table (d) a magnet
35. 35.⚖️ Fair test — does a bigger balloon go farther along the string? What do we do with “the same string”? (a) we change it (b) we measure it (c) we keep it the same
36. 36.🛟 Why should we wipe up spilled oil at once? (a) oil turns into honey (b) spilled oil is slippery (c) oil makes it rain (d) oil attracts magnets
37. 37.🛟 Which rule keeps the density tower experiment safe? (a) do not lick the spoon (b) throw the glass (c) pour it on the floor (d) taste each layer
38. 38.🔍 Which is the odd one out? (a) a pebble (b) a metal key (c) an iron nail (d) a feather
39. 39.🧺 Do we need a comb for the dissolving test? (a) needed (b) not needed
40. 40.True or false: cooking oil is less dense than water. (a) True (b) False

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