Water and Air Experiments Test Worksheet

Science experiments lesson 10: Part 1 test: water and air · Set 642 · 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.🧺 Three of these are needed for the dissolving test. Which one is NOT needed? (a) a balloon (b) warm water (c) sugar (d) a teaspoon
2. 2.True or false: water from the oars goes forward. (a) True (b) False
3. 3.🔍 Which is the odd one out? (a) a drinking straw (b) a vacuum cleaner (c) a magnetic pin holder (d) a medicine dropper
4. 4.⚖️ Fair test — does colour reach the petals faster with a short stem or a long stem? True or false: time for colour to show is what we measure. (a) False (b) True
5. 5.⚖️ Fair test — do longer blades make the paper helicopter fall more slowly? True or false: time to reach the floor is kept the same. (a) True (b) False
6. 6.🔮 Predict: a stem is split in two, one half in red water and one in blue. What do the petals do? (a) they stay white (b) they turn two colours (c) they fall off at once (d) they all turn green
7. 7.🧺 Which of these is needed for the coloured flower experiment? (a) a balloon (b) a white flower (c) a battery cell (d) turmeric powder
8. 8.🛟 What should you do after handling food colour? (a) wash your hands (b) wipe them on walls (c) rub your eyes (d) lick your fingers
9. 9.🧺 Three of these are needed for the coloured flower experiment. Which one is NOT needed? (a) food colour (b) a few hours of waiting (c) a glass of water (d) a balloon
10. 10.🛟 Which rule keeps the density tower experiment safe? (a) throw the glass (b) taste each layer (c) do not lick the spoon (d) pour it on the floor
11. 11.⚖️ Fair test — does a bigger balloon go farther along the string? True or false: distance it travels is what we measure. (a) True (b) False
12. 12.🥄 Does glucose powder dissolve in water? (a) dissolves in water (b) does not dissolve
13. 13.🍯 Which of these is denser than water? (a) a ping-pong ball (b) cooking oil (c) a glass marble (d) air
14. 14.True or false: a paper clip is needed for the paper helicopter. (a) False (b) True
15. 15.⚖️ 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 change it (b) we measure it (c) we keep it the same
16. 16.True or false: wet hair drying is evaporation. (a) False (b) True
17. 17.⚖️ Fair test — does a bigger balloon go farther along the string? Which of these is what we measure? (a) the same string (b) the same straw (c) distance it travels (d) the same tape
18. 18.🔍 Which is the odd one out? (a) an ice cube (b) a coin (c) a cork (d) a ping-pong ball
19. 19.🛟 What should you do with wet floors after the experiment? (a) pour more water (b) leave them wet (c) slide on them (d) wipe them dry
20. 20.🧺 Which of these is needed for the float-or-sink test? (a) turmeric powder (b) a results table (c) a mirror (d) a balloon
21. 21.🧺 Three of these are needed for the paper helicopter. Which one is NOT needed? (a) a pencil (b) a ruler (c) safety scissors (d) a balloon
22. 22.🧺 Which of these is needed for the water cycle bowl? (a) a magnet (b) turmeric powder (c) a mirror (d) a small cup
23. 23.🧺 Three of these are needed for the float-or-sink test. Which one is NOT needed? (a) small test objects (b) a mirror (c) a results table (d) a towel for spills
24. 24.🧺 Three of these are needed for the water rainbow. Which one is NOT needed? (a) a battery cell (b) a clear glass of water (c) a sheet of white paper (d) bright sunlight
25. 25.🍯 Which of these is less dense than water? (a) a pebble (b) cooking oil (c) a glass marble (d) honey
26. 26.🧺 Which of these is not needed for the paper helicopter? (a) a paper clip (b) a ruler (c) a battery cell (d) safety scissors
27. 27.💧 Which of these lets water climb up it? (a) a piece of foil (b) a sugar cube (c) a glass marble (d) a rubber eraser
28. 28.🧺 Which of these is needed for the density tower? (a) yeast (b) a balloon (c) turmeric powder (d) honey
29. 29.True or false: a ping-pong ball is denser than water. (a) True (b) False
30. 30.🔮 What happens if a cloud covers the Sun during the rainbow experiment? (a) it floats away (b) it turns brighter (c) it turns all red (d) the rainbow fades
31. 31.⚖️ Fair test — does the shape of a lump of clay change whether it floats? True or false: the tub of water is what we measure. (a) True (b) False
32. 32.⚖️ Fair test — does the shape of a lump of clay change whether it floats? What do we do with “the amount of clay”? (a) we change it (b) we keep it the same (c) we measure it
33. 33.🧺 Three of these are needed for the dissolving test. Which one is NOT needed? (a) a clock or timer (b) two clear glasses (c) a magnet (d) sugar
34. 34.🚀 Which of these goes forward? (a) gas from the rocket (b) air from the balloon (c) the rocket (d) water a swimmer pushes
35. 35.⚖️ Fair test — does a bowl in the sun make more drops than a bowl in the shade? True or false: the cling film cover is what we measure. (a) False (b) True
36. 36.⚖️ 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) True (b) False
37. 37.⚖️ Fair test — does a bigger balloon go farther along the string? True or false: distance it travels is the one thing we change. (a) False (b) True
38. 38.🚀 Which of these goes forward? (a) air from the balloon (b) the balloon (c) gas from the rocket (d) water a swimmer pushes
39. 39.True or false: cooking oil is not needed for the density tower. (a) True (b) False
40. 40.True or false: a mirror is needed for the balloon rocket. (a) True (b) False

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