Water and Air Experiments Test Worksheet

Science experiments lesson 10: Part 1 test: water and air · Set 692 · 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.⚖️ Fair test — does a bigger balloon go farther along the string? Which of these is kept the same? (a) the slope of the string (b) distance it travels (c) how big we blow it
2. 2.⚖️ Fair test — do longer blades make the paper helicopter fall more slowly? True or false: the paper clip is kept the same. (a) True (b) False
3. 3.⚖️ Fair test — do the layers end up in the same order if we pour the liquids in a different order? Which of these is kept the same? (a) the order of pouring (b) the order of the layers (c) the same three liquids
4. 4.🔍 Which is the odd one out? (a) a pond icing over (b) water becoming ice (c) wet clothes drying (d) making ice lollies
5. 5.🍯 Is a cork denser or less dense than water? (a) denser than water (b) less dense than water
6. 6.⚖️ Fair test — does a bigger balloon go farther along the string? True or false: distance it travels is the one thing we change. (a) True (b) False
7. 7.💧 Which change is this: water becoming ice? (a) melting (b) freezing (c) condensation (d) evaporation
8. 8.🚁 Which of these falls slowly through the air? (a) a crumpled paper ball (b) a feather (c) a steel spoon (d) a coin
9. 9.True or false: a misty bathroom mirror is freezing. (a) False (b) True
10. 10.⚖️ 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 colour (b) time for colour to show (c) the room it stands in (d) the length of the stem
11. 11.🚁 What does the paper helicopter do as it falls? (a) it turns into a ball (b) it spins round (c) it stays still in air (d) it flies upward
12. 12.🧺 Which of these is not needed for the balloon rocket? (a) a magnet (b) sticky tape (c) a long string (d) a drinking straw
13. 13.🚁 Which of these falls fast through the air? (a) a feather (b) a paper helicopter (c) a toy parachute (d) a crumpled paper ball
14. 14.🧺 Do we need a magnet for the water rainbow? (a) needed (b) not needed
15. 15.True or false: a drinking straw works by magnetism. (a) True (b) False
16. 16.⚖️ Fair test — does the shape of a lump of clay change whether it floats? True or false: the amount of clay is the one thing we change. (a) False (b) True
17. 17.🧺 Three of these are needed for the water rainbow. Which one is NOT needed? (a) a sheet of white paper (b) a sunny window (c) a clear glass of water (d) turmeric powder
18. 18.🌈 In VIBGYOR, what number colour is orange?
19. 19.🧺 Do we need a drinking straw for the balloon rocket? (a) needed (b) not needed
20. 20.True or false: the balloon goes forward. (a) True (b) False
21. 21.⚖️ Fair test — does the shape of a lump of clay change whether it floats? Which of these is kept the same? (a) the shape of the clay (b) whether it floats (c) the tub of water
22. 22.🔮 What would change if the flower stood in plain water? (a) the flower glows (b) the stem turns blue (c) the petals turn red (d) no colour change
23. 23.🔍 Which layer is on top in the honey-water-oil tower? (a) honey (b) coloured water (c) cooking oil (d) the spoon
24. 24.True or false: a balloon is needed for the water cycle bowl. (a) True (b) False
25. 25.⚖️ Fair test — does a bigger balloon go farther along the string? True or false: the same straw is kept the same. (a) True (b) False
26. 26.⚖️ 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 size of the bowl (b) sun or shade (c) the amount of water (d) how many drops form
27. 27.🔍 Which is the odd one out? (a) a cork (b) a metal key (c) an ice-cream stick (d) a feather
28. 28.⚖️ Fair test — does sugar dissolve faster in warm water or in cold water? Which of these is what we measure? (a) time to dissolve (b) the stirring (c) the amount of sugar (d) the amount of water
29. 29.True or false: two clear glasses is needed for the dissolving test. (a) True (b) False
30. 30.⚖️ 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 length of the stem (b) the room it stands in (c) time for colour to show
31. 31.🧺 Three of these are needed for the paper helicopter. Which one is NOT needed? (a) safety scissors (b) a pencil (c) a balloon (d) a strip of paper
32. 32.⚖️ Fair test — does a bigger balloon go farther along the string? Which of these is the one thing we change? (a) the slope of the string (b) distance it travels (c) how big we blow it (d) the same string
33. 33.🛟 Which scissors should children use to cut the paper? (a) gardening shears (b) sharp kitchen shears (c) a paper cutter (d) safety scissors
34. 34.🚁 Dropped from a raised hand, does a glass marble fall slowly or fast? (a) falls fast (b) falls slowly
35. 35.🛟 Why should a grown-up watch when children play near a big tub of water? (a) to win a prize (b) to splash everyone (c) to keep children safe (d) to hide the corks
36. 36.🌈 In VIBGYOR, what number colour is yellow?
37. 37.True or false: a coin falls slowly through the air. (a) False (b) True
38. 38.⚖️ 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) how many drops form (c) sun or shade
39. 39.🧺 Do we need water with food colour for the density tower? (a) needed (b) not needed
40. 40.⚖️ 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 change it (b) we keep it the same (c) we measure it

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