Air Pressure Experiment Worksheet

Science experiments lesson 6: Air pressure: the card on a glass · Set 377 · 40 questions

What you do (Air pushes): 1. Fill a plastic glass right to the top with water. 2. Lay the postcard flat on top, covering the rim. 3. Over a sink or bucket, hold the card and turn the glass upside down. 4. Slowly take your hand away from the card and watch.

1. 1.True or false: a towel is needed for the card-on-a-glass trick. (a) False (b) True
2. 2.🛟 Where should you do the card-and-glass trick? (a) near a plug point (b) over a sink or bucket (c) over a laptop (d) on a bed
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) whether the card stays (b) how full the glass is (c) the same glass
4. 4.🧺 Three of these are needed for the card-on-a-glass trick. Which one is NOT needed? (a) a magnet (b) a stiff postcard (c) a sink or a bucket (d) a glass of water
5. 5.🧺 Do we need a glass of water for the card-on-a-glass trick? (a) not needed (b) needed
6. 6.True or false: a suction hook works by air pressure. (a) False (b) True
7. 7.⚖️ 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
8. 8.🥛 Does a magnetic pin holder work by air pressure or by magnetism? (a) air pressure (b) magnetism
9. 9.🛟 Why is a plastic cup safer than a glass for small children here? (a) it is hotter (b) it is heavier (c) it will not break (d) it is magnetic
10. 10.🧺 Which of these is not needed for the card-on-a-glass trick? (a) a glass of water (b) a towel (c) turmeric powder (d) a stiff postcard
11. 11.🧺 Which of these is needed for the card-on-a-glass trick? (a) yeast (b) a balloon (c) a stiff postcard (d) a magnet
12. 12.📘 Air presses on everything around us. What is this push called? (a) magnetism (b) friction (c) sunlight (d) air pressure
13. 13.⚖️ 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) how full the glass is (c) the way we turn it (d) the same card
14. 14.True or false: yeast is not needed for the card-on-a-glass trick. (a) False (b) True
15. 15.🥛 Does a medicine dropper work by air pressure or by magnetism? (a) magnetism (b) air pressure
16. 16.True or false: yeast is needed for the card-on-a-glass trick. (a) True (b) False
17. 17.🧺 Do we need a mirror for the card-on-a-glass trick? (a) needed (b) not needed
18. 18.🧺 Do we need a sink or a bucket for the card-on-a-glass trick? (a) needed (b) not needed
19. 19.True or false: a glass of water is needed for the card-on-a-glass trick. (a) False (b) True
20. 20.🔮 Predict: you squeeze an empty plastic bottle with its cap screwed on tight. Why is it hard? (a) the bottle is magnetic (b) water is hiding there (c) the cap is sticky (d) air inside pushes back
21. 21.🥛 Does a vacuum cleaner work by air pressure or by magnetism? (a) magnetism (b) air pressure
22. 22.🥛 Which of these works by magnetism? (a) a vacuum cleaner (b) a drinking straw (c) a suction hook (d) a compass needle
23. 23.🥛 Why is it best to fill the glass right to the top? (a) it looks nicer (b) little air left inside (c) water is heavier (d) the card gets wet
24. 24.🧺 Which of these is not needed for the card-on-a-glass trick? (a) a stiff postcard (b) a glass of water (c) a magnet (d) a towel
25. 25.🥛 Which of these works by magnetism? (a) a vacuum cleaner (b) a drinking straw (c) a suction hook (d) a magnetic chess set
26. 26.🥤 Why does juice go up a drinking straw when you sip? (a) air pushes it up (b) juice likes plastic (c) the straw is hot (d) the straw is magnetic
27. 27.⚖️ 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 keep it the same (b) we change it (c) we measure it
28. 28.True or false: a magnet is not needed for the card-on-a-glass trick. (a) False (b) True
29. 29.🧺 Which of these is not needed for the card-on-a-glass trick? (a) a glass of water (b) a sink or a bucket (c) a mirror (d) a stiff postcard
30. 30.🧺 Three of these are needed for the card-on-a-glass trick. Which one is NOT needed? (a) a stiff postcard (b) yeast (c) a towel (d) a glass of water
31. 31.⚖️ Fair test — does the card stay on with a full glass and with a half-full glass? What do we do with “whether the card stays”? (a) we measure it (b) we keep it the same (c) we change it
32. 32.True or false: a glass of water is not needed for the card-on-a-glass trick. (a) False (b) True
33. 33.True or false: a suction hook works by magnetism. (a) True (b) False
34. 34.True or false: a medicine dropper works by magnetism. (a) False (b) True
35. 35.🔍 Which is the odd one out? (a) a vacuum cleaner (b) a suction hook (c) a magnetic chess set (d) a drinking straw
36. 36.True or false: a vacuum cleaner works by magnetism. (a) False (b) True
37. 37.🧺 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) a towel (d) a mirror
38. 38.🔍 Which is the odd one out? (a) a fridge magnet (b) a magnetic chess set (c) a bicycle pump (d) a magnetic pin holder
39. 39.🧺 Three of these are needed for the card-on-a-glass trick. Which one is NOT needed? (a) a glass of water (b) a stiff postcard (c) a towel (d) a battery cell
40. 40.⚖️ Fair test — does the card stay on with a full glass and with a half-full glass? What do we do with “the same card”? (a) we measure it (b) we change it (c) we keep it the same

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