Water and Air Experiments Test Worksheet

Science experiments lesson 10: Part 1 test: water and air · Set 975 · 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.True or false: a magnet is not needed for the water cycle bowl. (a) False (b) True
2. 2.True or false: yeast is not needed for the paper helicopter. (a) False (b) True
3. 3.⚖️ Fair test — does the card stay on with a full glass and with a half-full glass? Which of these is kept the same? (a) the way we turn it (b) how full the glass is (c) whether the card stays
4. 4.True or false: a white flower is not needed for the coloured flower experiment. (a) False (b) True
5. 5.🧺 Three of these are needed for the density tower. Which one is NOT needed? (a) a spoon (b) a tall clear glass (c) honey (d) a balloon
6. 6.💧 Which of these is freezing? (a) a misty bathroom mirror (b) water becoming ice (c) ice becoming water (d) drops on a cold glass
7. 7.🛟 Which of these floats on water? (a) a metal key (b) an ice-cream stick (c) a coin (d) a ball of clay
8. 8.🔍 Which is the odd one out? (a) baking soda (b) sugar (c) food colour (d) chalk powder
9. 9.🛟 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
10. 10.🛟 Who should pour the warm water in the dissolving test? (a) a friend who is running (b) the youngest child (c) a grown-up (d) nobody needs to
11. 11.🥄 Does table salt dissolve in water? (a) dissolves in water (b) does not dissolve
12. 12.⚖️ Fair test — does colour reach the petals faster with a short stem or a long stem? What do we do with “time for colour to show”? (a) we change it (b) we keep it the same (c) we measure it
13. 13.🔮 Why do we try the card trick over a sink or a bucket? (a) to make it rain (b) to cool the glass (c) to catch any spills (d) to grow plants
14. 14.🔍 Which is the odd one out? (a) cooking oil (b) a pebble (c) honey (d) a coin
15. 15.🧺 Do we need a tall clear glass for the density tower? (a) not needed (b) needed
16. 16.🔮 Raindrops in the sky act like tiny ___ for sunlight. (a) magnets (b) balloons (c) prisms (d) clouds
17. 17.🧺 Three of these are needed for the card-on-a-glass trick. Which one is NOT needed? (a) a stiff postcard (b) a glass of water (c) turmeric powder (d) a towel
18. 18.🔍 Which is the odd one out? (a) glucose powder (b) sugar (c) small pebbles (d) table salt
19. 19.True or false: a magnet is needed for the paper helicopter. (a) True (b) False
20. 20.🧺 Do we need a magnet for the dissolving test? (a) not needed (b) needed
21. 21.🔍 Which is the odd one out? (a) a stone (b) a coin (c) an open sheet of paper (d) a steel spoon
22. 22.True or false: a towel is needed for the card-on-a-glass trick. (a) False (b) True
23. 23.⚖️ Fair test — does a bowl in the sun make more drops than a bowl in the shade? What do we do with “sun or shade”? (a) we keep it the same (b) we measure it (c) we change it
24. 24.🔮 Predict: you blow the balloon up only a little. What happens? (a) it goes much farther (b) it flies off the string (c) it turns into a kite (d) it goes less far
25. 25.True or false: a plastic ruler does not let water climb. (a) False (b) True
26. 26.🧺 Which of these is needed for the balloon rocket? (a) vinegar (b) a magnet (c) sticky tape (d) turmeric powder
27. 27.True or false: cooking oil does not dissolve in water. (a) True (b) False
28. 28.True or false: a pebble is less dense than water. (a) True (b) False
29. 29.⚖️ Fair test — does sugar dissolve faster in warm water or in cold water? What do we do with “the stirring”? (a) we measure it (b) we keep it the same (c) we change it
30. 30.⚖️ Fair test — does the amount of water in the glass change how bright the rainbow is? True or false: the amount of water is the one thing we change. (a) False (b) True
31. 31.🛟 Why should only a grown-up handle any hot water? (a) it changes colour (b) hot water is magnetic (c) hot water is heavy (d) hot water can scald
32. 32.🎈 When does the balloon rocket stop? (a) when it gets cold (b) it never stops (c) when the air runs out (d) when it turns blue
33. 33.True or false: a pencil is needed for the paper helicopter. (a) True (b) False
34. 34.🧺 Which of these is not needed for the card-on-a-glass trick? (a) a towel (b) a magnet (c) a sink or a bucket (d) a glass of water
35. 35.🧺 Which of these is needed for the water cycle bowl? (a) turmeric powder (b) a battery cell (c) yeast (d) a big bowl
36. 36.🧺 Three of these are needed for the card-on-a-glass trick. Which one is NOT needed? (a) a glass of water (b) a mirror (c) a towel (d) a stiff postcard
37. 37.True or false: a sink or a bucket is needed for the card-on-a-glass trick. (a) True (b) False
38. 38.True or false: a ruler is not needed for the paper helicopter. (a) True (b) False
39. 39.🔍 Which is the odd one out? (a) honey (b) a glass marble (c) a cork (d) a coin
40. 40.🔍 Which is the odd one out? (a) dew on morning grass (b) wet hair drying (c) wet clothes drying (d) sweat drying on skin

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