Water and Air Experiments Test Worksheet

Science experiments lesson 10: Part 1 test: water and air · Set 92 · 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? What do we do with “the same glass”? (a) we measure it (b) we keep it the same (c) we change it
2. 2.🌈 In VIBGYOR, what number colour is indigo?
3. 3.🛟 Why is a plastic cup safer than a glass for small children here? (a) it will not break (b) it is magnetic (c) it is hotter (d) it is heavier
4. 4.⚖️ 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) how full the glass is (b) the same card (c) the way we turn it (d) the same glass
5. 5.🧺 Which of these is not needed for the card-on-a-glass trick? (a) a towel (b) a glass of water (c) a stiff postcard (d) turmeric powder
6. 6.🚀 Which of these goes forward? (a) water from the oars (b) air from the balloon (c) water a swimmer pushes (d) the rowing boat
7. 7.True or false: a piece of foil lets water climb up it. (a) True (b) False
8. 8.🧺 Which of these is needed for the card-on-a-glass trick? (a) a stiff postcard (b) a magnet (c) turmeric powder (d) a battery cell
9. 9.💧 Which of these lets water climb up it? (a) a cotton thread (b) a rubber eraser (c) a plastic ruler (d) a glass marble
10. 10.🧺 Which of these is needed for the water cycle bowl? (a) turmeric powder (b) yeast (c) a big bowl (d) a magnet
11. 11.🔮 Why do we try the card trick over a sink or a bucket? (a) to make it rain (b) to grow plants (c) to cool the glass (d) to catch any spills
12. 12.True or false: food colour is not needed for the coloured flower experiment. (a) True (b) False
13. 13.⚖️ Fair test — does a bigger balloon go farther along the string? True or false: distance it travels is what we measure. (a) False (b) True
14. 14.🛟 Which is the safe way to do the float-or-sink test? (a) run around the tub (b) play near a deep pond (c) leave water on the floor (d) wipe up spills at once
15. 15.⚖️ Fair test — does a bigger balloon go farther along the string? Which of these is kept the same? (a) distance it travels (b) how big we blow it (c) the slope of the string
16. 16.⚖️ Fair test — does sugar dissolve faster in warm water or in cold water? What do we do with “the water temperature”? (a) we measure it (b) we keep it the same (c) we change it
17. 17.True or false: small pebbles dissolves in water. (a) True (b) False
18. 18.🔍 Which is the odd one out? (a) a piece of thermocol (b) an empty capped bottle (c) a cork (d) a steel spoon
19. 19.🛟 What should you do after handling food colour? (a) rub your eyes (b) wash your hands (c) wipe them on walls (d) lick your fingers
20. 20.🚁 Which of these falls fast through the air? (a) a toy parachute (b) a crumpled paper ball (c) a feather (d) a fluff of cotton
21. 21.⚖️ 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 glass is what we measure. (a) True (b) False
22. 22.🧺 Do we need cold water for the dissolving test? (a) not needed (b) needed
23. 23.⚖️ Fair test — does the card stay on with a full glass and with a half-full glass? True or false: the way we turn it is kept the same. (a) True (b) False
24. 24.🔮 Raindrops in the sky act like tiny ___ for sunlight. (a) magnets (b) clouds (c) prisms (d) balloons
25. 25.⚖️ Fair test — does a bigger balloon go farther along the string? What do we do with “the same straw”? (a) we keep it the same (b) we change it (c) we measure it
26. 26.🚀 In “push back, move forward”, which way does the rocket go? (a) goes backward (b) goes forward
27. 27.🧺 Which of these is needed for the paper helicopter? (a) a paper clip (b) yeast (c) a mirror (d) a magnet
28. 28.🎈 Air rushes out of the back of the balloon. Which way does the balloon move? (a) straight down (b) forward (c) it stays still (d) backward
29. 29.🔍 Which is the odd one out? (a) wet clothes drying (b) sweat drying on skin (c) a puddle drying up (d) drops under a pot lid
30. 30.🧺 Three of these are needed for the paper helicopter. Which one is NOT needed? (a) a mirror (b) safety scissors (c) a pencil (d) a strip of paper
31. 31.🔍 Which is the odd one out? (a) a piece of foil (b) a rubber eraser (c) a cotton thread (d) a glass marble
32. 32.🛟 Which of these floats on water? (a) a ping-pong ball (b) an iron nail (c) a metal key (d) a glass marble
33. 33.🧺 Three of these are needed for the water rainbow. Which one is NOT needed? (a) a sunny window (b) a clear glass of water (c) bright sunlight (d) a magnet
34. 34.🧺 Do we need a battery cell for the water cycle bowl? (a) needed (b) not needed
35. 35.⚖️ 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
36. 36.🛟 Why should you not over-blow the balloon? (a) it turns into a kite (b) it can pop loudly (c) it changes colour (d) it gets too heavy
37. 37.⚖️ Fair test — does sugar dissolve faster in warm water or in cold water? What do we do with “the amount of sugar”? (a) we keep it the same (b) we measure it (c) we change it
38. 38.🧺 Do we need a mirror for the card-on-a-glass trick? (a) needed (b) not needed
39. 39.⚖️ Fair test — does the amount of water in the glass change how bright the rainbow is? Which of these is kept the same? (a) the time of day (b) brightness of rainbow (c) the amount of water
40. 40.True or false: a clear glass of water is needed for the water rainbow. (a) True (b) False

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