Air Pressure Experiment Worksheet

Science experiments lesson 6: Air pressure: the card on a glass · Set 173 · 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.True or false: a sink or a bucket is needed for the card-on-a-glass trick. (a) True (b) False
2. 2.⚖️ 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) True (b) False
3. 3.True or false: a drinking straw works by magnetism. (a) True (b) False
4. 4.🧺 Which of these is not needed for the card-on-a-glass trick? (a) a glass of water (b) a stiff postcard (c) a magnet (d) a towel
5. 5.🛟 Why is a plastic cup safer than a glass for small children here? (a) it is magnetic (b) it is heavier (c) it will not break (d) it is hotter
6. 6.🧺 Do we need a balloon for the card-on-a-glass trick? (a) not needed (b) needed
7. 7.🛟 Where should you do the card-and-glass trick? (a) over a laptop (b) over a sink or bucket (c) near a plug point (d) on a bed
8. 8.True or false: a battery cell is not needed for the card-on-a-glass trick. (a) False (b) True
9. 9.True or false: a mirror is not needed for the card-on-a-glass trick. (a) False (b) True
10. 10.🧺 Do we need a stiff postcard for the card-on-a-glass trick? (a) not needed (b) needed
11. 11.🧺 Three of these are needed for the card-on-a-glass trick. Which one is NOT needed? (a) a balloon (b) a sink or a bucket (c) a towel (d) a glass of water
12. 12.🥛 Which of these works by air pressure? (a) a magnetic pin holder (b) a compass needle (c) a drinking straw (d) a magnetic chess set
13. 13.⚖️ 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) False (b) True
14. 14.⚖️ 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
15. 15.🥛 Which of these works by magnetism? (a) a bicycle pump (b) a compass needle (c) a medicine dropper (d) a drinking straw
16. 16.🧺 Which of these is needed for the card-on-a-glass trick? (a) a magnet (b) a stiff postcard (c) a battery cell (d) yeast
17. 17.🔍 Which is the odd one out? (a) a vacuum cleaner (b) a bicycle pump (c) a drinking straw (d) a magnetic pin holder
18. 18.True or false: a compass needle works by air pressure. (a) False (b) True
19. 19.🧺 Three of these are needed for the card-on-a-glass trick. Which one is NOT needed? (a) a towel (b) a magnet (c) a glass of water (d) a sink or a bucket
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) the same glass (b) how full the glass is (c) the same card (d) whether the card stays
21. 21.True or false: a magnetic pin holder works by magnetism. (a) True (b) False
22. 22.🔮 Why do we try the card trick over a sink or a bucket? (a) to cool the glass (b) to grow plants (c) to make it rain (d) to catch any spills
23. 23.True or false: a balloon is needed for the card-on-a-glass trick. (a) True (b) False
24. 24.⚖️ 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
25. 25.🔍 Which is the odd one out? (a) a compass needle (b) a fridge magnet (c) a suction hook (d) a magnetic chess set
26. 26.⚖️ 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) True (b) False
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 keep it the same (b) we change it (c) we measure it
28. 28.🧺 Which of these is needed for the card-on-a-glass trick? (a) a balloon (b) yeast (c) a battery cell (d) a towel
29. 29.True or false: a stiff postcard is not needed for the card-on-a-glass trick. (a) False (b) True
30. 30.🥛 Does a magnetic pin holder work by air pressure or by magnetism? (a) magnetism (b) air pressure
31. 31.🥛 Does a drinking straw work by air pressure or by magnetism? (a) magnetism (b) air pressure
32. 32.🔍 Which is the odd one out? (a) a bicycle pump (b) a vacuum cleaner (c) a magnetic chess set (d) a drinking straw
33. 33.🥛 Which of these works by air pressure? (a) a medicine dropper (b) a magnetic chess set (c) a magnetic pin holder (d) a fridge magnet
34. 34.🔍 You turn the full glass upside down, holding the card, then let go of the card. What happens? (a) the water turns to ice (b) the card flies away (c) the glass breaks (d) the card stays on
35. 35.🥛 Does a bicycle pump work by air pressure or by magnetism? (a) magnetism (b) air pressure
36. 36.🧺 Three of these are needed for the card-on-a-glass trick. Which one is NOT needed? (a) a towel (b) turmeric powder (c) a sink or a bucket (d) a glass of water
37. 37.🔍 Which is the odd one out? (a) a magnetic pin holder (b) a compass needle (c) a fridge magnet (d) a drinking straw
38. 38.🥛 Does a compass needle work by air pressure or by magnetism? (a) air pressure (b) magnetism
39. 39.🥛 Which of these works by magnetism? (a) a suction hook (b) a magnetic pin holder (c) a bicycle pump (d) a drinking straw
40. 40.True or false: a glass of water is not needed for the card-on-a-glass trick. (a) False (b) True

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