Air Pressure Experiment Worksheet

Science experiments lesson 6: Air pressure: the card on a glass · Set 500 · 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.🧺 Which of these is not needed for the card-on-a-glass trick? (a) a magnet (b) a towel (c) a sink or a bucket (d) a glass of water
2. 2.🥛 Which of these works by air pressure? (a) a fridge magnet (b) a compass needle (c) a magnetic pin holder (d) a medicine dropper
3. 3.🔍 Which is the odd one out? (a) a vacuum cleaner (b) a drinking straw (c) a magnetic pin holder (d) a suction hook
4. 4.True or false: a medicine dropper works by air pressure. (a) True (b) False
5. 5.🔍 Which is the odd one out? (a) a magnetic chess set (b) a vacuum cleaner (c) a medicine dropper (d) a drinking straw
6. 6.🧺 Which of these is not needed for the card-on-a-glass trick? (a) a towel (b) a glass of water (c) a sink or a bucket (d) a mirror
7. 7.🧺 Do we need a towel for the card-on-a-glass trick? (a) not needed (b) needed
8. 8.🥛 Which of these works by air pressure? (a) a compass needle (b) a bicycle pump (c) a fridge magnet (d) a magnetic chess set
9. 9.⚖️ 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 change it (b) we measure it (c) we keep it the same
10. 10.🔮 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
11. 11.⚖️ 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 kept the same. (a) False (b) True
12. 12.⚖️ 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
13. 13.⚖️ Fair test — does the card stay on with a full glass and with a half-full glass? True or false: the same glass is kept the same. (a) True (b) False
14. 14.⚖️ 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) True (b) False
15. 15.True or false: a compass needle works by air pressure. (a) True (b) False
16. 16.🧺 Which of these is not needed for the card-on-a-glass trick? (a) yeast (b) a towel (c) a stiff postcard (d) a glass of water
17. 17.🛟 Where should you do the card-and-glass trick? (a) over a sink or bucket (b) near a plug point (c) on a bed (d) over a laptop
18. 18.🧺 Do we need turmeric powder for the card-on-a-glass trick? (a) not needed (b) needed
19. 19.⚖️ 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 change it (c) we keep it the same
20. 20.True or false: a sink or a bucket is needed for the card-on-a-glass trick. (a) True (b) False
21. 21.🧺 Which of these is needed for the card-on-a-glass trick? (a) a mirror (b) turmeric powder (c) a glass of water (d) a battery cell
22. 22.True or false: a suction hook works by air pressure. (a) True (b) False
23. 23.🔍 Which is the odd one out? (a) a vacuum cleaner (b) a drinking straw (c) a fridge magnet (d) a suction hook
24. 24.⚖️ Fair test — does the card stay on with a full glass and with a half-full glass? What do we do with “the way we turn it”? (a) we measure it (b) we keep it the same (c) we change it
25. 25.🥛 Which of these works by air pressure? (a) a drinking straw (b) a compass needle (c) a fridge magnet (d) a magnetic chess set
26. 26.⚖️ 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) the same card (b) the same glass (c) how full the glass is (d) the way we turn it
27. 27.🔮 Predict: you blow up a balloon. What fills it? (a) sand (b) air (c) smoke (d) water
28. 28.🛟 Why is a plastic cup safer than a glass for small children here? (a) it is heavier (b) it will not break (c) it is magnetic (d) it is hotter
29. 29.🥛 Which of these works by air pressure? (a) a fridge magnet (b) a compass needle (c) a suction hook (d) a magnetic pin holder
30. 30.🧺 Which of these is needed for the card-on-a-glass trick? (a) a battery cell (b) a stiff postcard (c) turmeric powder (d) a magnet
31. 31.🥛 Does a suction hook work by air pressure or by magnetism? (a) air pressure (b) magnetism
32. 32.🥛 Does a drinking straw work by air pressure or by magnetism? (a) magnetism (b) air pressure
33. 33.🧺 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 towel (c) a mirror (d) a stiff postcard
34. 34.True or false: a battery cell is needed for the card-on-a-glass trick. (a) False (b) True
35. 35.⚖️ 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 what we measure. (a) True (b) False
36. 36.🥛 Which of these works by magnetism? (a) a vacuum cleaner (b) a compass needle (c) a drinking straw (d) a medicine dropper
37. 37.🧺 Three of these are needed for the card-on-a-glass trick. Which one is NOT needed? (a) a glass of water (b) a battery cell (c) a towel (d) a sink or a bucket
38. 38.⚖️ 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 same glass (b) how full the glass is (c) whether the card stays
39. 39.🥛 Does a fridge magnet work by air pressure or by magnetism? (a) magnetism (b) air pressure
40. 40.⚖️ 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) True (b) False

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