Air Pressure Experiment Worksheet

Science experiments lesson 6: Air pressure: the card on a glass · Set 417 · 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? True or false: how full the glass is is kept the same. (a) True (b) False
2. 2.🧺 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) a sink or a bucket (d) turmeric powder
3. 3.🥛 Does a magnetic chess set work by air pressure or by magnetism? (a) air pressure (b) magnetism
4. 4.⚖️ 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 card (b) whether the card stays (c) how full the glass is
5. 5.⚖️ 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 same glass (d) how full the glass is
6. 6.🧺 Do we need yeast for the card-on-a-glass trick? (a) needed (b) not needed
7. 7.🔍 Which is the odd one out? (a) a vacuum cleaner (b) a medicine dropper (c) a magnetic pin holder (d) a drinking straw
8. 8.⚖️ 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
9. 9.⚖️ 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) True (b) False
10. 10.True or false: a mirror is needed for the card-on-a-glass trick. (a) True (b) False
11. 11.🥛 Which of these works by magnetism? (a) a medicine dropper (b) a compass needle (c) a drinking straw (d) a suction hook
12. 12.⚖️ 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
13. 13.True or false: turmeric powder is needed for the card-on-a-glass trick. (a) True (b) False
14. 14.🧺 Which of these is needed for the card-on-a-glass trick? (a) a sink or a bucket (b) a mirror (c) yeast (d) a battery cell
15. 15.🧺 Three of these are needed for the card-on-a-glass trick. Which one is NOT needed? (a) a glass of water (b) a sink or a bucket (c) a towel (d) a balloon
16. 16.🥛 Does a fridge magnet work by air pressure or by magnetism? (a) air pressure (b) magnetism
17. 17.⚖️ Fair test — does the card stay on with a full glass and with a half-full glass? True or false: the same glass is the one thing we change. (a) True (b) False
18. 18.🧺 Do we need a battery cell 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? True or false: the way we turn it is the one thing we change. (a) False (b) True
20. 20.⚖️ 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 keep it the same (b) we measure it (c) we change it
21. 21.⚖️ Fair test — does the card stay on with a full glass and with a half-full glass? True or false: the same card is what we measure. (a) True (b) False
22. 22.🔍 Which is the odd one out? (a) a bicycle pump (b) a suction hook (c) a fridge magnet (d) a medicine dropper
23. 23.⚖️ 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 the one thing we change. (a) False (b) True
24. 24.🧺 Do we need a mirror for the card-on-a-glass trick? (a) needed (b) not needed
25. 25.🧺 Which of these is needed for the card-on-a-glass trick? (a) a towel (b) turmeric powder (c) a magnet (d) yeast
26. 26.🧺 Do we need a sink or a bucket for the card-on-a-glass trick? (a) not needed (b) needed
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 card”? (a) we measure it (b) we change it (c) we keep it the same
28. 28.True or false: a balloon is needed for the card-on-a-glass trick. (a) False (b) True
29. 29.🔍 Which is the odd one out? (a) a compass needle (b) a vacuum cleaner (c) a magnetic pin holder (d) a fridge magnet
30. 30.True or false: a battery cell is not needed for the card-on-a-glass trick. (a) False (b) True
31. 31.🥛 Which of these works by magnetism? (a) a bicycle pump (b) a magnetic pin holder (c) a drinking straw (d) a medicine dropper
32. 32.🥤 Why does juice go up a drinking straw when you sip? (a) the straw is magnetic (b) air pushes it up (c) juice likes plastic (d) the straw is hot
33. 33.⚖️ 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
34. 34.🥛 Does a magnetic pin holder work by air pressure or by magnetism? (a) air pressure (b) magnetism
35. 35.🔮 Predict: you squeeze an empty plastic bottle with its cap screwed on tight. Why is it hard? (a) the bottle is magnetic (b) the cap is sticky (c) water is hiding there (d) air inside pushes back
36. 36.🥛 Which of these works by air pressure? (a) a magnetic chess set (b) a compass needle (c) a fridge magnet (d) a suction hook
37. 37.🛟 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
38. 38.🧺 Three of these are needed for the card-on-a-glass trick. Which one is NOT needed? (a) a battery cell (b) a sink or a bucket (c) a glass of water (d) a towel
39. 39.⚖️ 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
40. 40.🥛 Which of these works by air pressure? (a) a magnetic chess set (b) a fridge magnet (c) a compass needle (d) a medicine dropper

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