Water and Air Experiments Test Worksheet

Science experiments lesson 10: Part 1 test: water and air · Set 265 · 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 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
2. 2.⚖️ Fair test — does the shape of a lump of clay change whether it floats? True or false: whether it floats is kept the same. (a) True (b) False
3. 3.🚀 In “push back, move forward”, which way does the balloon go? (a) goes forward (b) goes backward
4. 4.⚖️ Fair test — does the shape of a lump of clay change whether it floats? What do we do with “whether it floats”? (a) we change it (b) we measure it (c) we keep it the same
5. 5.🚀 In “push back, move forward”, which way does water from the oars go? (a) goes backward (b) goes forward
6. 6.💧 Which of these does not let water climb? (a) a flower stem (b) a cotton thread (c) a glass marble (d) a paper towel
7. 7.True or false: a medicine dropper works by magnetism. (a) False (b) True
8. 8.🛟 Why should we wipe up spilled oil at once? (a) oil makes it rain (b) oil attracts magnets (c) oil turns into honey (d) spilled oil is slippery
9. 9.🔍 Which is the odd one out? (a) a ping-pong ball (b) a cork (c) very salty water (d) an ice cube
10. 10.True or false: a magnet is not needed for the float-or-sink test. (a) True (b) False
11. 11.🧺 Which of these is not needed for the float-or-sink test? (a) a tub of water (b) turmeric powder (c) a results table (d) a towel for spills
12. 12.🥛 Does a magnetic chess set work by air pressure or by magnetism? (a) magnetism (b) air pressure
13. 13.⚖️ Fair test — does sugar dissolve faster in warm water or in cold water? What do we do with “the stirring”? (a) we keep it the same (b) we measure it (c) we change it
14. 14.🔮 Predict: you shake oil and water hard in a closed bottle and wait. What happens? (a) they turn to honey (b) they mix for ever (c) they separate again (d) they become solid
15. 15.🔮 Predict: the string slopes uphill. What happens? (a) it speeds up (b) it travels less far (c) it travels farther (d) it goes backward first
16. 16.🚁 Which of these falls fast through the air? (a) a fluff of cotton (b) a toy parachute (c) a glass marble (d) an open sheet of paper
17. 17.True or false: an ice-cream stick sinks in water. (a) True (b) False
18. 18.True or false: a balloon is not needed for the water cycle bowl. (a) False (b) True
19. 19.🚁 Dropped from a raised hand, does an open sheet of paper fall slowly or fast? (a) falls fast (b) falls slowly
20. 20.🧺 Do we need sugar for the dissolving test? (a) not needed (b) needed
21. 21.True or false: ice becoming water is condensation. (a) True (b) False
22. 22.🥄 Does sugar stirred well dissolve faster or slower? (a) faster (b) slower
23. 23.🚀 In “push back, move forward”, which way does water a swimmer pushes go? (a) goes backward (b) goes forward
24. 24.🧺 Do we need honey for the density tower? (a) not needed (b) needed
25. 25.🧺 Three of these are needed for the dissolving test. Which one is NOT needed? (a) a teaspoon (b) cotton wool (c) two clear glasses (d) sugar
26. 26.🚀 Which of these goes backward? (a) the balloon (b) the rowing boat (c) air from the balloon (d) the rocket
27. 27.🚀 Which of these goes backward? (a) the balloon (b) the swimmer (c) water from the oars (d) the rocket
28. 28.⚖️ 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 kind of flower (b) the length of the stem (c) the amount of colour (d) time for colour to show
29. 29.🧺 Do we need a spoon for the density tower? (a) not needed (b) needed
30. 30.⚖️ Fair test — does a bigger balloon go farther along the string? Which of these is what we measure? (a) the same string (b) how big we blow it (c) the same straw (d) distance it travels
31. 31.🔮 Predict: you spray fine water drops with the Sun behind you. What may you see? (a) a magnet (b) a small rainbow (c) a shadow of ice (d) snow falling
32. 32.🥛 Which of these works by magnetism? (a) a magnetic pin holder (b) a bicycle pump (c) a vacuum cleaner (d) a medicine dropper
33. 33.⚖️ Fair test — does a bowl in the sun make more drops than a bowl in the shade? True or false: the amount of water is what we measure. (a) True (b) False
34. 34.⚖️ Fair test — does the amount of water in the glass change how bright the rainbow is? True or false: the same window is what we measure. (a) False (b) True
35. 35.🔍 Which is the odd one out? (a) a coin (b) a steel spoon (c) a crumpled paper ball (d) a paper helicopter
36. 36.⚖️ Fair test — does the amount of water in the glass change how bright the rainbow is? What do we do with “the same window”? (a) we change it (b) we measure it (c) we keep it the same
37. 37.🧺 Do we need a drinking straw for the balloon rocket? (a) needed (b) not needed
38. 38.True or false: cooking oil dissolves in water. (a) True (b) False
39. 39.🥛 Does a magnetic pin holder work by air pressure or by magnetism? (a) magnetism (b) air pressure
40. 40.🧺 Which of these is needed for the density tower? (a) a battery cell (b) a magnet (c) a mirror (d) a tall clear glass

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