Water and Air Experiments Test Worksheet

Science experiments lesson 10: Part 1 test: water and air · Set 810 · 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 bowl in the sun make more drops than a bowl in the shade? True or false: the amount of water is the one thing we change. (a) False (b) True
2. 2.🚁 Dropped from a raised hand, does a glass marble fall slowly or fast? (a) falls fast (b) falls slowly
3. 3.True or false: a battery cell is needed for the float-or-sink test. (a) True (b) False
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 measure it (b) we change it (c) we keep it the same
5. 5.🔍 Which is the odd one out? (a) very salty water (b) a ping-pong ball (c) an ice cube (d) air
6. 6.🧺 Do we need yeast for the balloon rocket? (a) needed (b) not needed
7. 7.True or false: a battery cell is not needed for the water rainbow. (a) False (b) True
8. 8.🧺 Three of these are needed for the balloon rocket. Which one is NOT needed? (a) a drinking straw (b) a battery cell (c) a balloon (d) a long string
9. 9.True or false: safety scissors is not needed for the paper helicopter. (a) True (b) False
10. 10.True or false: a fridge magnet works by magnetism. (a) True (b) False
11. 11.True or false: a big sugar cube dissolves faster. (a) True (b) False
12. 12.🌈 In VIBGYOR, what number colour is red?
13. 13.🔍 How can you get the salt back from salty water? (a) stir it more (b) add more water (c) keep it in a fridge (d) let the water evaporate
14. 14.🔍 Which is the odd one out? (a) cooking oil (b) a pebble (c) an ice cube (d) a cork
15. 15.🛟 Which is a safe rule for the balloon rocket? (a) aim it at your friend (b) keep it away from faces (c) put string round a neck (d) blow it till it bursts
16. 16.🧺 Do we need warm water for the dissolving test? (a) needed (b) not needed
17. 17.🧺 Do we need a magnet for the dissolving test? (a) needed (b) not needed
18. 18.🧺 Do we need a battery cell for the water rainbow? (a) needed (b) not needed
19. 19.🔍 Which is the odd one out? (a) a glass marble (b) a feather (c) a toy parachute (d) a paper helicopter
20. 20.🔍 Which is the odd one out? (a) a glass marble (b) an iron nail (c) a ping-pong ball (d) a steel spoon
21. 21.🔍 Which is the odd one out? (a) a medicine dropper (b) a magnetic chess set (c) a drinking straw (d) a suction hook
22. 22.⚖️ Fair test — does a bigger balloon go farther along the string? True or false: distance it travels is kept the same. (a) False (b) True
23. 23.🧺 Three of these are needed for the balloon rocket. Which one is NOT needed? (a) a balloon (b) two chairs (c) a mirror (d) a drinking straw
24. 24.⚖️ Fair test — does a bowl in the sun make more drops than a bowl in the shade? Which of these is what we measure? (a) the amount of water (b) how many drops form (c) sun or shade (d) the size of the bowl
25. 25.True or false: the rocket goes backward. (a) True (b) False
26. 26.📘 What does “dense” mean? (a) very colourful (b) heavy for its size (c) very thin (d) very hot
27. 27.🔍 Which is the odd one out? (a) an open sheet of paper (b) a fluff of cotton (c) a paper helicopter (d) a crumpled paper ball
28. 28.🚁 Which of these falls slowly through the air? (a) a paper helicopter (b) a crumpled paper ball (c) a glass marble (d) a stone
29. 29.🔮 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 all turn green (c) they fall off at once (d) they turn two colours
30. 30.⚖️ Fair test — does a bigger balloon go farther along the string? Which of these is the one thing we change? (a) distance it travels (b) the same tape (c) the same string (d) how big we blow it
31. 31.True or false: a comb is not needed for the dissolving test. (a) True (b) False
32. 32.🧺 Which of these is needed for the density tower? (a) a mirror (b) a spoon (c) turmeric powder (d) a magnet
33. 33.⚖️ Fair test — does the amount of water in the glass change how bright the rainbow is? What do we do with “the amount of water”? (a) we measure it (b) we change it (c) we keep it the same
34. 34.⚖️ 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
35. 35.🧺 Three of these are needed for the dissolving test. Which one is NOT needed? (a) warm water (b) two clear glasses (c) cotton wool (d) a teaspoon
36. 36.🔮 Predict: you gently drop a small cork into the tower. Where does it stop? (a) in the honey layer (b) under the honey (c) in the water layer (d) on top of the oil
37. 37.🔍 Which is the odd one out? (a) a glass marble (b) a coin (c) very salty water (d) an ice cube
38. 38.🥄 Which of these dissolves slower? (a) sugar stirred well (b) powdered sugar (c) sugar left unstirred (d) sugar in warm water
39. 39.🛟 Which of these floats on water? (a) an ice cube (b) a steel spoon (c) a ball of clay (d) a coin
40. 40.🧺 Which of these is needed for the float-or-sink test? (a) yeast (b) turmeric powder (c) small test objects (d) a battery cell

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