Air Pressure Experiment Worksheet

Science experiments lesson 6: Air pressure: the card on a glass · Set 980 · 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 needed for the card-on-a-glass trick? (a) a magnet (b) a balloon (c) a towel (d) turmeric powder
2. 2.🛟 Why is a plastic cup safer than a glass for small children here? (a) it is magnetic (b) it will not break (c) it is hotter (d) it is heavier
3. 3.🧺 Which of these is not needed for the card-on-a-glass trick? (a) turmeric powder (b) a stiff postcard (c) a towel (d) a glass of water
4. 4.🥛 Does a drinking straw work by air pressure or by magnetism? (a) magnetism (b) air pressure
5. 5.🔍 Which is the odd one out? (a) a compass needle (b) a fridge magnet (c) a bicycle pump (d) a magnetic pin holder
6. 6.True or false: a fridge magnet works by magnetism. (a) True (b) False
7. 7.⚖️ 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 change it (c) we measure it
8. 8.🛟 Where should you do the card-and-glass trick? (a) over a sink or bucket (b) over a laptop (c) on a bed (d) near a plug point
9. 9.⚖️ 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 way we turn it (d) the same card
10. 10.🥛 Which of these works by magnetism? (a) a vacuum cleaner (b) a magnetic pin holder (c) a suction hook (d) a bicycle pump
11. 11.🧺 Do we need a balloon for the card-on-a-glass trick? (a) needed (b) not needed
12. 12.🧺 Do we need turmeric powder for the card-on-a-glass trick? (a) not needed (b) needed
13. 13.True or false: yeast is needed for the card-on-a-glass trick. (a) True (b) False
14. 14.🧺 Do we need a magnet for the card-on-a-glass trick? (a) needed (b) not needed
15. 15.🥛 Does a bicycle pump work by air pressure or by magnetism? (a) magnetism (b) air pressure
16. 16.🥤 Why does juice go up a drinking straw when you sip? (a) juice likes plastic (b) the straw is hot (c) air pushes it up (d) the straw is magnetic
17. 17.True or false: a balloon is not needed for the card-on-a-glass trick. (a) False (b) True
18. 18.🧺 Which of these is not needed for the card-on-a-glass trick? (a) a glass of water (b) a towel (c) yeast (d) a sink or a bucket
19. 19.True or false: a magnetic pin holder works by magnetism. (a) False (b) True
20. 20.True or false: a medicine dropper works by magnetism. (a) False (b) True
21. 21.True or false: a towel is needed for the card-on-a-glass trick. (a) False (b) True
22. 22.🔍 Which is the odd one out? (a) a medicine dropper (b) a magnetic pin holder (c) a suction hook (d) a vacuum cleaner
23. 23.🥛 Does a medicine dropper work by air pressure or by magnetism? (a) air pressure (b) magnetism
24. 24.True or false: turmeric powder is not needed for the card-on-a-glass trick. (a) False (b) True
25. 25.🧺 Which of these is needed for the card-on-a-glass trick? (a) a balloon (b) a battery cell (c) yeast (d) a glass of water
26. 26.⚖️ 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 keep it the same (b) we change it (c) we measure it
27. 27.🧺 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
28. 28.🥛 Does a fridge magnet work by air pressure or by magnetism? (a) air pressure (b) magnetism
29. 29.🥛 Which of these works by magnetism? (a) a vacuum cleaner (b) a fridge magnet (c) a bicycle pump (d) a drinking straw
30. 30.⚖️ 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) True (b) False
31. 31.🥛 Does a vacuum cleaner work by air pressure or by magnetism? (a) magnetism (b) air pressure
32. 32.⚖️ 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
33. 33.🧺 Which of these is needed for the card-on-a-glass trick? (a) a balloon (b) turmeric powder (c) yeast (d) a sink or a bucket
34. 34.True or false: turmeric powder is needed for the card-on-a-glass trick. (a) True (b) False
35. 35.🧺 Which of these is needed for the card-on-a-glass trick? (a) a magnet (b) a balloon (c) a mirror (d) a stiff postcard
36. 36.True or false: a medicine dropper works by air pressure. (a) True (b) False
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) turmeric powder (c) a sink or a bucket (d) a stiff postcard
38. 38.True or false: a mirror is not needed for the card-on-a-glass trick. (a) True (b) False
39. 39.🧺 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 magnet
40. 40.🥛 Which of these works by air pressure? (a) a magnetic pin holder (b) a fridge magnet (c) a medicine dropper (d) a magnetic chess set

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