Water and Air Experiments Test Worksheet

Science experiments lesson 10: Part 1 test: water and air · Set 626 · 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) two clear glasses (b) cold water (c) a clock or timer (d) cotton wool
2. 2.🚁 Which of these falls fast through the air? (a) a feather (b) a stone (c) a paper helicopter (d) a toy parachute
3. 3.⚖️ Fair test — does a bowl in the sun make more drops than a bowl in the shade? What do we do with “the time we wait”? (a) we change it (b) we keep it the same (c) we measure it
4. 4.True or false: two chairs is not needed for the balloon rocket. (a) False (b) True
5. 5.🛟 Where should you do the card-and-glass trick? (a) over a sink or bucket (b) over a laptop (c) on a bed (d) near a plug point
6. 6.⚖️ 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 keep it the same (c) we measure it
7. 7.True or false: yeast is not needed for the float-or-sink test. (a) False (b) True
8. 8.🧺 Do we need a battery cell for the card-on-a-glass trick? (a) not needed (b) needed
9. 9.🔍 Which is the odd one out? (a) a feather (b) a metal key (c) a steel spoon (d) a glass marble
10. 10.🌈 In VIBGYOR, what number colour is red?
11. 11.🧺 Which of these is needed for the density tower? (a) water with food colour (b) yeast (c) a battery cell (d) a balloon
12. 12.⚖️ Fair test — does the amount of water in the glass change how bright the rainbow is? What do we do with “brightness of rainbow”? (a) we keep it the same (b) we measure it (c) we change it
13. 13.🔍 Which is the odd one out? (a) cooking oil (b) very salty water (c) honey (d) a glass marble
14. 14.🔍 Which is the odd one out? (a) a plastic ruler (b) a rubber eraser (c) a piece of foil (d) a sugar cube
15. 15.⚖️ Fair test — do the layers end up in the same order if we pour the liquids in a different order? True or false: the same three liquids is what we measure. (a) False (b) True
16. 16.🧺 Do we need yeast for the density tower? (a) needed (b) not needed
17. 17.⚖️ Fair test — does the card stay on with a full glass and with a half-full glass? Which of these is what we measure? (a) the same glass (b) the way we turn it (c) how full the glass is (d) whether the card stays
18. 18.True or false: the balloon goes backward. (a) True (b) False
19. 19.🛟 Which rule keeps you safe when working with sunlight? (a) never look at the Sun (b) stare at the Sun (c) look at it in a mirror (d) look at it through glass
20. 20.⚖️ Fair test — does the card stay on with a full glass and with a half-full glass? Which of these is the one thing we change? (a) whether the card stays (b) the same glass (c) how full the glass is (d) the same card
21. 21.🧺 Three of these are needed for the water cycle bowl. Which one is NOT needed? (a) a magnet (b) ice cubes (c) cling film (d) sunlight
22. 22.🧺 Three of these are needed for the balloon rocket. Which one is NOT needed? (a) a mirror (b) a long string (c) a balloon (d) a drinking straw
23. 23.🌈 In VIBGYOR, what number colour is yellow?
24. 24.🌈 In VIBGYOR, what number colour is orange?
25. 25.True or false: a paper helicopter falls slowly through the air. (a) False (b) True
26. 26.🚁 Which of these falls slowly through the air? (a) a fluff of cotton (b) a stone (c) a glass marble (d) a crumpled paper ball
27. 27.🧺 Three of these are needed for the paper helicopter. Which one is NOT needed? (a) safety scissors (b) a magnet (c) a paper clip (d) a ruler
28. 28.True or false: sunlight is not needed for the water cycle bowl. (a) True (b) False
29. 29.🌈 How many colours do we name in a rainbow (VIBGYOR)?
30. 30.🛟 Does a feather float or sink in water? (a) floats (b) sinks
31. 31.🧺 Three of these are needed for the water cycle bowl. Which one is NOT needed? (a) water (b) a small cup (c) cling film (d) a mirror
32. 32.⚖️ Fair test — does a bowl in the sun make more drops than a bowl in the shade? True or false: the time we wait is kept the same. (a) False (b) True
33. 33.True or false: a cotton thread lets water climb up it. (a) True (b) False
34. 34.🧺 Which of these is needed for the float-or-sink test? (a) a magnet (b) small test objects (c) turmeric powder (d) a balloon
35. 35.True or false: a ping-pong ball is less dense than water. (a) False (b) True
36. 36.🧺 Three of these are needed for the density tower. Which one is NOT needed? (a) cooking oil (b) water with food colour (c) a balloon (d) a tall clear glass
37. 37.🧺 Which of these is needed for the water rainbow? (a) a magnet (b) turmeric powder (c) a sunny window (d) a mirror
38. 38.🛟 Where is a safe place to drop the helicopter from? (a) a wobbly chair (b) a high window ledge (c) a roof edge (d) from your raised hand
39. 39.🔍 Which is the odd one out? (a) an empty capped bottle (b) a cork (c) a ball of clay (d) a ping-pong ball
40. 40.🛟 Which is the safe way to do the float-or-sink test? (a) wipe up spills at once (b) play near a deep pond (c) run around the tub (d) leave water on the floor

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