Air Pressure Experiment Worksheet

Science experiments lesson 6: Air pressure: the card on a glass · Set 473 · 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 bicycle pump work by air pressure or by magnetism? (a) magnetism (b) air pressure
2. 2.🧺 Do we need a towel for the card-on-a-glass trick? (a) needed (b) not needed
3. 3.⚖️ 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
4. 4.🛟 Where should you do the card-and-glass trick? (a) over a laptop (b) over a sink or bucket (c) on a bed (d) near a plug point
5. 5.🧺 Three of these are needed for the card-on-a-glass trick. Which one is NOT needed? (a) a stiff postcard (b) a mirror (c) a glass of water (d) a sink or a bucket
6. 6.🧺 Which of these is not needed for the card-on-a-glass trick? (a) a glass of water (b) a magnet (c) a towel (d) a stiff postcard
7. 7.True or false: a vacuum cleaner works by magnetism. (a) False (b) True
8. 8.🥛 Which of these works by air pressure? (a) a magnetic chess set (b) a vacuum cleaner (c) a compass needle (d) a magnetic pin holder
9. 9.🧺 Three of these are needed for the card-on-a-glass trick. Which one is NOT needed? (a) a stiff postcard (b) a battery cell (c) a towel (d) a sink or a bucket
10. 10.🛟 Why is a plastic cup safer than a glass for small children here? (a) it is hotter (b) it will not break (c) it is magnetic (d) it is heavier
11. 11.🧺 Which of these is not needed for the card-on-a-glass trick? (a) a glass of water (b) a towel (c) a balloon (d) a stiff postcard
12. 12.🧺 Which of these is needed for the card-on-a-glass trick? (a) yeast (b) a balloon (c) a stiff postcard (d) turmeric powder
13. 13.🧺 Three of these are needed for the card-on-a-glass trick. Which one is NOT needed? (a) a magnet (b) a sink or a bucket (c) a glass of water (d) a towel
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) the same card (b) how full the glass is (c) whether the card stays
15. 15.🥛 Does a drinking straw work by air pressure or by magnetism? (a) air pressure (b) magnetism
16. 16.⚖️ 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) how full the glass is (c) the same glass (d) the way we turn it
17. 17.⚖️ 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 keep it the same (c) we change it
18. 18.🔍 Which is the odd one out? (a) a magnetic chess set (b) a medicine dropper (c) a fridge magnet (d) a compass needle
19. 19.🧺 Do we need a balloon for the card-on-a-glass trick? (a) not needed (b) needed
20. 20.🧺 Three of these are needed for the card-on-a-glass trick. Which one is NOT needed? (a) turmeric powder (b) a sink or a bucket (c) a stiff postcard (d) a towel
21. 21.🧺 Do we need a glass of water for the card-on-a-glass trick? (a) not needed (b) needed
22. 22.True or false: a magnetic chess set works by air pressure. (a) False (b) True
23. 23.🥤 Why does juice go up a drinking straw when you sip? (a) the straw is hot (b) air pushes it up (c) juice likes plastic (d) the straw is magnetic
24. 24.🧺 Which of these is needed for the card-on-a-glass trick? (a) a glass of water (b) a magnet (c) a battery cell (d) a mirror
25. 25.🥛 Does a magnetic chess set work by air pressure or by magnetism? (a) magnetism (b) air pressure
26. 26.True or false: a stiff postcard is not needed for the card-on-a-glass trick. (a) False (b) True
27. 27.⚖️ 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
28. 28.🥛 Which of these works by air pressure? (a) a compass needle (b) a suction hook (c) a fridge magnet (d) a magnetic chess set
29. 29.📘 Air presses on everything around us. What is this push called? (a) magnetism (b) air pressure (c) sunlight (d) friction
30. 30.⚖️ 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 keep it the same (b) we change it (c) we measure it
31. 31.True or false: a fridge magnet works by air pressure. (a) True (b) False
32. 32.🔍 Which is the odd one out? (a) a fridge magnet (b) a vacuum cleaner (c) a compass needle (d) a magnetic chess set
33. 33.🧺 Do we need a battery cell for the card-on-a-glass trick? (a) needed (b) not needed
34. 34.True or false: a suction hook works by magnetism. (a) True (b) False
35. 35.True or false: yeast is needed for the card-on-a-glass trick. (a) True (b) False
36. 36.⚖️ 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) False (b) True
37. 37.🥛 Which of these works by magnetism? (a) a drinking straw (b) a magnetic pin holder (c) a medicine dropper (d) a vacuum cleaner
38. 38.🧺 Do we need a magnet for the card-on-a-glass trick? (a) needed (b) not needed
39. 39.⚖️ 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
40. 40.🔮 Why do we try the card trick over a sink or a bucket? (a) to catch any spills (b) to cool the glass (c) to make it rain (d) to grow plants

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