Air Pressure Experiment Worksheet

Science experiments lesson 6: Air pressure: the card on a glass · Set 581 · 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.⚖️ 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) whether the card stays (c) the same card (d) the same glass
2. 2.🥛 Which of these works by magnetism? (a) a medicine dropper (b) a suction hook (c) a vacuum cleaner (d) a compass needle
3. 3.🧺 Which of these is not needed for the card-on-a-glass trick? (a) a glass of water (b) a towel (c) a sink or a bucket (d) a balloon
4. 4.🥛 Does a drinking straw work by air pressure or by magnetism? (a) air pressure (b) magnetism
5. 5.True or false: a drinking straw works by magnetism. (a) True (b) False
6. 6.⚖️ Fair test — does the card stay on with a full glass and with a half-full glass? True or false: whether the card stays is the one thing we change. (a) True (b) False
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) how full the glass is (b) the way we turn it (c) the same glass (d) whether the card stays
8. 8.⚖️ Fair test — does the card stay on with a full glass and with a half-full glass? What do we do with “how full the glass is”? (a) we change it (b) we measure it (c) we keep it the same
9. 9.🔍 Which is the odd one out? (a) a fridge magnet (b) a medicine dropper (c) a suction hook (d) a vacuum cleaner
10. 10.🔮 Predict: you squeeze an empty plastic bottle with its cap screwed on tight. Why is it hard? (a) water is hiding there (b) the cap is sticky (c) the bottle is magnetic (d) air inside pushes back
11. 11.🥛 Does a medicine dropper work by air pressure or by magnetism? (a) magnetism (b) air pressure
12. 12.True or false: yeast is not needed for the card-on-a-glass trick. (a) True (b) False
13. 13.🥛 Which of these works by magnetism? (a) a bicycle pump (b) a magnetic chess set (c) a medicine dropper (d) a drinking straw
14. 14.🥛 Does a magnetic pin holder work by air pressure or by magnetism? (a) air pressure (b) magnetism
15. 15.🧺 Which of these is needed for the card-on-a-glass trick? (a) a magnet (b) a balloon (c) a battery cell (d) a glass of water
16. 16.🥛 Does a suction hook work by air pressure or by magnetism? (a) air pressure (b) magnetism
17. 17.🧺 Do we need a mirror for the card-on-a-glass trick? (a) needed (b) not needed
18. 18.🧺 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 magnet (d) a sink or a bucket
19. 19.🥛 Does a magnetic chess set work by air pressure or by magnetism? (a) air pressure (b) magnetism
20. 20.🔮 Why do we try the card trick over a sink or a bucket? (a) to catch any spills (b) to grow plants (c) to cool the glass (d) to make it rain
21. 21.🔍 Which is the odd one out? (a) a vacuum cleaner (b) a suction hook (c) a medicine dropper (d) a magnetic chess set
22. 22.🧺 Three of these are needed for the card-on-a-glass trick. Which one is NOT needed? (a) a sink or a bucket (b) a mirror (c) a stiff postcard (d) a glass of water
23. 23.🥛 Does a compass needle work by air pressure or by magnetism? (a) magnetism (b) air pressure
24. 24.🧺 Do we need a sink or a bucket for the card-on-a-glass trick? (a) needed (b) not needed
25. 25.True or false: a fridge magnet works by magnetism. (a) True (b) False
26. 26.🛟 Where should you do the card-and-glass trick? (a) over a laptop (b) on a bed (c) near a plug point (d) over a sink or bucket
27. 27.🧺 Which of these is needed for the card-on-a-glass trick? (a) a magnet (b) a battery cell (c) a sink or a bucket (d) turmeric powder
28. 28.🧺 Which of these is needed for the card-on-a-glass trick? (a) yeast (b) a magnet (c) a towel (d) a battery cell
29. 29.🧺 Three of these are needed for the card-on-a-glass trick. Which one is NOT needed? (a) a towel (b) a balloon (c) a sink or a bucket (d) a glass of water
30. 30.⚖️ Fair test — does the card stay on with a full glass and with a half-full glass? True or false: how full the glass is is kept the same. (a) True (b) False
31. 31.🧺 Do we need a towel for the card-on-a-glass trick? (a) needed (b) not needed
32. 32.True or false: a stiff postcard is needed for the card-on-a-glass trick. (a) False (b) True
33. 33.True or false: a magnet is needed for the card-on-a-glass trick. (a) False (b) True
34. 34.⚖️ Fair test — does the card stay on with a full glass and with a half-full glass? True or false: the same glass is what we measure. (a) False (b) True
35. 35.🥛 Does a bicycle pump work by air pressure or by magnetism? (a) air pressure (b) magnetism
36. 36.🧺 Do we need yeast for the card-on-a-glass trick? (a) needed (b) not needed
37. 37.🧺 Three of these are needed for the card-on-a-glass trick. Which one is NOT needed? (a) turmeric powder (b) a glass of water (c) a towel (d) a stiff postcard
38. 38.⚖️ 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 the one thing we change. (a) False (b) True
39. 39.🛟 Why is a plastic cup safer than a glass for small children here? (a) it will not break (b) it is heavier (c) it is hotter (d) it is magnetic
40. 40.🧺 Which of these is not needed for the card-on-a-glass trick? (a) a glass of water (b) a stiff postcard (c) a towel (d) a mirror

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