Water and Air Experiments Test Worksheet

Science experiments lesson 10: Part 1 test: water and air · Set 329 · 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 shape of a lump of clay change whether it floats? What do we do with “the shape of the clay”? (a) we keep it the same (b) we measure it (c) we change it
2. 2.⚖️ Fair test — does sugar dissolve faster in warm water or in cold water? True or false: the amount of water is what we measure. (a) False (b) True
3. 3.🚁 What does the paper helicopter do as it falls? (a) it stays still in air (b) it flies upward (c) it turns into a ball (d) it spins round
4. 4.🧺 Three of these are needed for the water cycle bowl. Which one is NOT needed? (a) a big bowl (b) cling film (c) sunlight (d) a magnet
5. 5.True or false: turmeric powder is needed for the paper helicopter. (a) True (b) False
6. 6.⚖️ Fair test — does a bigger balloon go farther along the string? True or false: the same string is what we measure. (a) True (b) False
7. 7.🧺 Do we need a balloon for the coloured flower experiment? (a) not needed (b) needed
8. 8.⚖️ Fair test — does the amount of water in the glass change how bright the rainbow is? True or false: brightness of rainbow is what we measure. (a) False (b) True
9. 9.🔮 A flat sheet and a crumpled ball of the same paper drop together. Which lands first? (a) the flat sheet (b) neither of them (c) a sheet of glass (d) the crumpled ball
10. 10.💧 Which of these is condensation? (a) drops under a pot lid (b) ice becoming water (c) wet clothes drying (d) a pond icing over
11. 11.🧺 Three of these are needed for the water cycle bowl. Which one is NOT needed? (a) sunlight (b) water (c) cling film (d) yeast
12. 12.🚀 Which of these goes forward? (a) air from the balloon (b) gas from the rocket (c) water from the oars (d) the rocket
13. 13.True or false: an ice cube is less dense than water. (a) False (b) True
14. 14.🚁 Which of these falls slowly through the air? (a) a steel spoon (b) a crumpled paper ball (c) a feather (d) a coin
15. 15.⚖️ Fair test — does sugar dissolve faster in warm water or in cold water? What do we do with “the water temperature”? (a) we keep it the same (b) we measure it (c) we change it
16. 16.True or false: a rubber eraser does not let water climb. (a) False (b) True
17. 17.🛟 Which of these sinks in water? (a) an empty capped bottle (b) a glass marble (c) a piece of thermocol (d) a ping-pong ball
18. 18.True or false: an ice cube is denser than water. (a) True (b) False
19. 19.⚖️ Fair test — does the amount of water in the glass change how bright the rainbow is? Which of these is the one thing we change? (a) the time of day (b) brightness of rainbow (c) the same window (d) the amount of water
20. 20.⚖️ 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 tub of water (d) the shape of the clay
21. 21.🛟 Which is the safe way to do the float-or-sink test? (a) play near a deep pond (b) wipe up spills at once (c) leave water on the floor (d) run around the tub
22. 22.🔍 Which is the odd one out? (a) snow turning to water (b) water becoming ice (c) making ice lollies (d) a pond icing over
23. 23.🧺 Do we need a balloon for the float-or-sink test? (a) not needed (b) needed
24. 24.🔍 Which is the odd one out? (a) honey (b) a ping-pong ball (c) air (d) cooking oil
25. 25.True or false: a ping-pong ball sinks in water. (a) True (b) False
26. 26.🧺 Which of these is needed for the dissolving test? (a) a clock or timer (b) a balloon (c) a mirror (d) a magnet
27. 27.True or false: a sugar cube does not let water climb. (a) False (b) True
28. 28.⚖️ 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
29. 29.🧺 Three of these are needed for the water rainbow. Which one is NOT needed? (a) a sunny window (b) yeast (c) a clear glass of water (d) a sheet of white paper
30. 30.🚁 Dropped from a raised hand, does a crumpled paper ball fall slowly or fast? (a) falls fast (b) falls slowly
31. 31.🧺 Do we need water with food colour for the density tower? (a) not needed (b) needed
32. 32.True or false: an open sheet of paper falls slowly through the air. (a) False (b) True
33. 33.🧺 Which of these is needed for the paper helicopter? (a) yeast (b) a magnet (c) a battery cell (d) a pencil
34. 34.🧺 Which of these is needed for the dissolving test? (a) two clear glasses (b) a balloon (c) honey (d) a mirror
35. 35.🔍 Which is the odd one out? (a) a glass marble (b) very salty water (c) a cork (d) a pebble
36. 36.True or false: a metal key floats on water. (a) True (b) False
37. 37.🎈 Why does the balloon rocket move along the string? (a) escaping air pushes it (b) the straw is heavy (c) the string pulls it (d) a magnet pulls it
38. 38.⚖️ 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
39. 39.⚖️ Fair test — does the shape of a lump of clay change whether it floats? True or false: the tub of water is kept the same. (a) False (b) True
40. 40.🧺 Which of these is needed for the density tower? (a) a balloon (b) a magnet (c) cooking oil (d) a battery cell

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