Air Pressure Experiment Worksheet

Science experiments lesson 6: Air pressure: the card on a glass · Set 387 · 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 is the odd one out? (a) a magnetic chess set (b) a drinking straw (c) a compass needle (d) a magnetic pin holder
2. 2.🥛 Does a magnetic chess set work by air pressure or by magnetism? (a) magnetism (b) air pressure
3. 3.🛟 Where should you do the card-and-glass trick? (a) near a plug point (b) on a bed (c) over a laptop (d) over a sink or bucket
4. 4.🥛 Does a suction hook work by air pressure or by magnetism? (a) magnetism (b) air pressure
5. 5.True or false: a balloon is not needed for the card-on-a-glass trick. (a) True (b) False
6. 6.🔍 Which is the odd one out? (a) a drinking straw (b) a bicycle pump (c) a fridge magnet (d) a medicine dropper
7. 7.⚖️ 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
8. 8.🧺 Do we need a magnet for the card-on-a-glass trick? (a) needed (b) not needed
9. 9.True or false: a drinking straw works by magnetism. (a) False (b) True
10. 10.⚖️ 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) the way we turn it (c) how full the glass is
11. 11.True or false: a towel is not needed for the card-on-a-glass trick. (a) True (b) False
12. 12.⚖️ 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 change it (c) we keep it the same
13. 13.🧺 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 mirror (d) a sink or a bucket
14. 14.🥛 Which of these works by magnetism? (a) a fridge magnet (b) a bicycle pump (c) a suction hook (d) a vacuum cleaner
15. 15.True or false: a medicine dropper works by air pressure. (a) False (b) True
16. 16.🧺 Which of these is needed for the card-on-a-glass trick? (a) a magnet (b) a sink or a bucket (c) turmeric powder (d) a balloon
17. 17.True or false: a magnet is needed for the card-on-a-glass trick. (a) True (b) False
18. 18.🥛 Does a drinking straw work by air pressure or by magnetism? (a) magnetism (b) air pressure
19. 19.True or false: a sink or a bucket is not needed for the card-on-a-glass trick. (a) True (b) False
20. 20.🔮 Predict: you blow up a balloon. What fills it? (a) sand (b) water (c) smoke (d) air
21. 21.🧺 Which of these is needed for the card-on-a-glass trick? (a) yeast (b) a battery cell (c) turmeric powder (d) a glass of water
22. 22.True or false: a medicine dropper works by magnetism. (a) False (b) True
23. 23.🧺 Three of these are needed for the card-on-a-glass trick. Which one is NOT needed? (a) a glass of water (b) a towel (c) a sink or a bucket (d) turmeric powder
24. 24.⚖️ Fair test — does the card stay on with a full glass and with a half-full glass? True or false: the same card is kept the same. (a) False (b) True
25. 25.⚖️ 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) the same card (c) the way we turn it (d) how full the glass is
26. 26.🔍 Which is the odd one out? (a) a medicine dropper (b) a magnetic chess set (c) a suction hook (d) a bicycle pump
27. 27.🔍 You turn the full glass upside down, holding the card, then let go of the card. What happens? (a) the glass breaks (b) the card stays on (c) the water turns to ice (d) the card flies away
28. 28.⚖️ 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 change it (b) we keep it the same (c) we measure it
29. 29.🔮 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
30. 30.🥛 Does a vacuum cleaner work by air pressure or by magnetism? (a) magnetism (b) air pressure
31. 31.🥛 Does a compass needle work by air pressure or by magnetism? (a) magnetism (b) air pressure
32. 32.🥛 Which of these works by magnetism? (a) a medicine dropper (b) a magnetic pin holder (c) a bicycle pump (d) a suction hook
33. 33.True or false: yeast is not needed for the card-on-a-glass trick. (a) False (b) True
34. 34.🧺 Do we need a mirror for the card-on-a-glass trick? (a) not needed (b) needed
35. 35.⚖️ 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) False (b) True
36. 36.🧺 Three of these are needed for the card-on-a-glass trick. Which one is NOT needed? (a) a towel (b) a glass of water (c) yeast (d) a sink or a bucket
37. 37.🔍 Which is the odd one out? (a) a magnetic pin holder (b) a suction hook (c) a drinking straw (d) a vacuum cleaner
38. 38.🥛 Does a medicine dropper work by air pressure or by magnetism? (a) air pressure (b) magnetism
39. 39.True or false: a vacuum cleaner works by magnetism. (a) False (b) True
40. 40.🔍 Which is the odd one out? (a) a magnetic chess set (b) a magnetic pin holder (c) a suction hook (d) a fridge magnet

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