Air Pressure Experiment Worksheet

Science experiments lesson 6: Air pressure: the card on a glass · Set 267 · 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.🥛 Does a drinking straw work by air pressure or by magnetism? (a) magnetism (b) air pressure
2. 2.True or false: a sink or a bucket is not needed for the card-on-a-glass trick. (a) True (b) False
3. 3.🧺 Do we need a magnet for the card-on-a-glass trick? (a) needed (b) not needed
4. 4.🥛 Which of these works by air pressure? (a) a magnetic chess set (b) a magnetic pin holder (c) a fridge magnet (d) a suction hook
5. 5.🧺 Do we need a glass of water for the card-on-a-glass trick? (a) needed (b) not needed
6. 6.⚖️ 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 kept the same. (a) False (b) True
7. 7.🥛 Which of these works by magnetism? (a) a bicycle pump (b) a compass needle (c) a suction hook (d) a vacuum cleaner
8. 8.⚖️ 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
9. 9.🥛 Which of these works by air pressure? (a) a compass needle (b) a fridge magnet (c) a medicine dropper (d) a magnetic chess set
10. 10.🥛 Which of these works by magnetism? (a) a magnetic chess set (b) a bicycle pump (c) a vacuum cleaner (d) a suction hook
11. 11.True or false: a suction hook works by magnetism. (a) False (b) True
12. 12.🧺 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) a mirror
13. 13.True or false: a vacuum cleaner works by air pressure. (a) True (b) False
14. 14.🔍 Which is the odd one out? (a) a medicine dropper (b) a fridge magnet (c) a bicycle pump (d) a drinking straw
15. 15.🛟 Why is a plastic cup safer than a glass for small children here? (a) it is heavier (b) it is magnetic (c) it will not break (d) it is hotter
16. 16.🛟 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
17. 17.🥛 Does a bicycle pump work by air pressure or by magnetism? (a) air pressure (b) magnetism
18. 18.⚖️ 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
19. 19.⚖️ 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
20. 20.🧺 Which of these is needed for the card-on-a-glass trick? (a) turmeric powder (b) a balloon (c) a stiff postcard (d) a mirror
21. 21.🔍 Which is the odd one out? (a) a vacuum cleaner (b) a drinking straw (c) a compass needle (d) a medicine dropper
22. 22.🧺 Do we need yeast for the card-on-a-glass trick? (a) needed (b) not needed
23. 23.🔍 Which is the odd one out? (a) a fridge magnet (b) a drinking straw (c) a magnetic chess set (d) a magnetic pin holder
24. 24.⚖️ 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) False (b) True
25. 25.🔍 Which is the odd one out? (a) a magnetic chess set (b) a fridge magnet (c) a compass needle (d) a vacuum cleaner
26. 26.🥛 Does a compass needle work by air pressure or by magnetism? (a) air pressure (b) magnetism
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 glass”? (a) we measure it (b) we keep it the same (c) we change it
28. 28.⚖️ 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) whether the card stays (b) the same card (c) the same glass (d) how full the glass is
29. 29.🥛 Which of these works by air pressure? (a) a vacuum cleaner (b) a magnetic pin holder (c) a magnetic chess set (d) a fridge magnet
30. 30.True or false: yeast is needed for the card-on-a-glass trick. (a) False (b) True
31. 31.🧺 Which of these is needed for the card-on-a-glass trick? (a) a magnet (b) a battery cell (c) a mirror (d) a towel
32. 32.🧺 Do we need a towel for the card-on-a-glass trick? (a) needed (b) not needed
33. 33.True or false: a mirror is not needed for the card-on-a-glass trick. (a) False (b) True
34. 34.🧺 Which of these is needed for the card-on-a-glass trick? (a) a mirror (b) a magnet (c) a glass of water (d) a battery cell
35. 35.True or false: a vacuum cleaner works by magnetism. (a) True (b) False
36. 36.⚖️ 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
37. 37.⚖️ 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 way we turn it (b) how full the glass is (c) whether the card stays
38. 38.⚖️ 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
39. 39.⚖️ 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 change it (b) we measure it (c) we keep it the same
40. 40.🧺 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 stiff postcard (c) a towel (d) a balloon

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