Air Pressure Experiment Worksheet

Science experiments lesson 6: Air pressure: the card on a glass · Set 900 · 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 works by air pressure? (a) a fridge magnet (b) a magnetic pin holder (c) a suction hook (d) a magnetic chess set
2. 2.🛟 Where should you do the card-and-glass trick? (a) over a sink or bucket (b) on a bed (c) near a plug point (d) over a laptop
3. 3.🥛 Does a bicycle pump work by air pressure or by magnetism? (a) air pressure (b) magnetism
4. 4.🔮 Predict: you blow up a balloon. What fills it? (a) air (b) sand (c) water (d) smoke
5. 5.🥛 Does a medicine dropper work by air pressure or by magnetism? (a) air pressure (b) magnetism
6. 6.🧺 Do we need a glass of water for the card-on-a-glass trick? (a) not needed (b) needed
7. 7.🧺 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 towel (d) a magnet
8. 8.🥛 Does a suction hook work by air pressure or by magnetism? (a) magnetism (b) air pressure
9. 9.True or false: a towel is not needed for the card-on-a-glass trick. (a) False (b) True
10. 10.🧺 Which of these is not needed for the card-on-a-glass trick? (a) a stiff postcard (b) a sink or a bucket (c) a towel (d) a mirror
11. 11.🧺 Do we need a sink or a bucket for the card-on-a-glass trick? (a) needed (b) not needed
12. 12.True or false: a magnetic pin holder works by magnetism. (a) False (b) True
13. 13.🥛 Which of these works by air pressure? (a) a magnetic pin holder (b) a bicycle pump (c) a magnetic chess set (d) a fridge magnet
14. 14.⚖️ 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 measure it (b) we change it (c) we keep it the same
15. 15.🔍 Which is the odd one out? (a) a magnetic chess set (b) a fridge magnet (c) a medicine dropper (d) a compass needle
16. 16.🧺 Do we need a balloon for the card-on-a-glass trick? (a) needed (b) not needed
17. 17.⚖️ 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 keep it the same (c) we measure it
18. 18.True or false: a drinking straw works by air pressure. (a) False (b) True
19. 19.🧺 Which of these is needed for the card-on-a-glass trick? (a) yeast (b) a mirror (c) a magnet (d) a towel
20. 20.⚖️ 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
21. 21.🔍 Which is the odd one out? (a) a fridge magnet (b) a compass needle (c) a magnetic pin holder (d) a drinking straw
22. 22.🧺 Do we need a magnet for the card-on-a-glass trick? (a) needed (b) not needed
23. 23.🧺 Do we need a battery cell for the card-on-a-glass trick? (a) needed (b) not needed
24. 24.True or false: a glass of water is not needed for the card-on-a-glass trick. (a) True (b) False
25. 25.True or false: a mirror is needed for the card-on-a-glass trick. (a) True (b) False
26. 26.True or false: a magnetic pin holder works by air pressure. (a) False (b) True
27. 27.True or false: a compass needle works by magnetism. (a) False (b) True
28. 28.🥛 Does a magnetic pin holder work by air pressure or by magnetism? (a) air pressure (b) magnetism
29. 29.🧺 Do we need a mirror for the card-on-a-glass trick? (a) not needed (b) needed
30. 30.🧺 Which of these is needed for the card-on-a-glass trick? (a) a battery cell (b) a magnet (c) a glass of water (d) a mirror
31. 31.⚖️ 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
32. 32.🧺 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) yeast (d) a stiff postcard
33. 33.🥛 Does a fridge magnet work by air pressure or by magnetism? (a) air pressure (b) magnetism
34. 34.⚖️ 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 keep it the same (c) we measure it
35. 35.🧺 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 balloon (d) a sink or a bucket
36. 36.🧺 Which of these is not needed for the card-on-a-glass trick? (a) a magnet (b) a towel (c) a glass of water (d) a sink or a bucket
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) whether the card stays (b) the way we turn it (c) how full the glass is
38. 38.True or false: a vacuum cleaner works by magnetism. (a) False (b) True
39. 39.🥛 Does a vacuum cleaner work by air pressure or by magnetism? (a) air pressure (b) magnetism
40. 40.True or false: a medicine dropper works by magnetism. (a) True (b) False

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