Air Pressure Experiment Worksheet

Science experiments lesson 6: Air pressure: the card on a glass · Set 260 · 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 magnetic pin holder works by magnetism. (a) False (b) True
2. 2.🔮 Why do we try the card trick over a sink or a bucket? (a) to grow plants (b) to catch any spills (c) to cool the glass (d) to make it rain
3. 3.⚖️ 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
4. 4.🧺 Which of these is needed for the card-on-a-glass trick? (a) turmeric powder (b) a sink or a bucket (c) a balloon (d) a battery cell
5. 5.🔍 You turn the full glass upside down, holding the card, then let go of the card. What happens? (a) the card stays on (b) the card flies away (c) the glass breaks (d) the water turns to ice
6. 6.🧺 Three of these are needed for the card-on-a-glass trick. Which one is NOT needed? (a) turmeric powder (b) a towel (c) a stiff postcard (d) a glass of water
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.⚖️ 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 change it (b) we keep it the same (c) we measure it
9. 9.🛟 Why is a plastic cup safer than a glass for small children here? (a) it will not break (b) it is hotter (c) it is magnetic (d) it is heavier
10. 10.⚖️ 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) whether the card stays (c) how full the glass is
11. 11.⚖️ 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) how full the glass is (b) the same glass (c) the same card (d) whether the card stays
12. 12.⚖️ 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
13. 13.🥛 Does a compass needle work by air pressure or by magnetism? (a) air pressure (b) magnetism
14. 14.🧺 Do we need turmeric powder for the card-on-a-glass trick? (a) not needed (b) needed
15. 15.🥛 Does a drinking straw work by air pressure or by magnetism? (a) magnetism (b) air pressure
16. 16.🥛 Does a magnetic chess set work by air pressure or by magnetism? (a) air pressure (b) magnetism
17. 17.⚖️ Fair test — does the card stay on with a full glass and with a half-full glass? True or false: the same card is the one thing we change. (a) True (b) False
18. 18.True or false: a drinking straw works by magnetism. (a) True (b) False
19. 19.🔍 Which is the odd one out? (a) a compass needle (b) a drinking straw (c) a suction hook (d) a bicycle pump
20. 20.⚖️ 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 keep it the same (b) we change it (c) we measure it
21. 21.🥛 Does a medicine dropper work by air pressure or by magnetism? (a) air pressure (b) magnetism
22. 22.🔍 Which is the odd one out? (a) a vacuum cleaner (b) a medicine dropper (c) a suction hook (d) a magnetic chess set
23. 23.True or false: a magnet is not needed for the card-on-a-glass trick. (a) True (b) False
24. 24.🥛 Does a suction hook work by air pressure or by magnetism? (a) air pressure (b) magnetism
25. 25.True or false: a mirror is not needed for the card-on-a-glass trick. (a) False (b) True
26. 26.🥛 Why is it best to fill the glass right to the top? (a) the card gets wet (b) it looks nicer (c) water is heavier (d) little air left inside
27. 27.🧺 Do we need a battery cell for the card-on-a-glass trick? (a) needed (b) not needed
28. 28.🧺 Which of these is needed for the card-on-a-glass trick? (a) a mirror (b) yeast (c) a magnet (d) a stiff postcard
29. 29.⚖️ 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 measure it (c) we change it
30. 30.🥛 Which of these works by magnetism? (a) a vacuum cleaner (b) a suction hook (c) a compass needle (d) a medicine dropper
31. 31.🥛 Which of these works by air pressure? (a) a compass needle (b) a magnetic chess set (c) a drinking straw (d) a magnetic pin holder
32. 32.True or false: a bicycle pump works by air pressure. (a) False (b) True
33. 33.🧺 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 magnet (c) a stiff postcard (d) a towel
34. 34.🔍 Which is the odd one out? (a) a compass needle (b) a fridge magnet (c) a suction hook (d) a magnetic chess set
35. 35.🧺 Which of these is not needed for the card-on-a-glass trick? (a) a sink or a bucket (b) turmeric powder (c) a stiff postcard (d) a towel
36. 36.True or false: yeast is not needed for the card-on-a-glass trick. (a) False (b) True
37. 37.🥛 Does a magnetic pin holder work by air pressure or by magnetism? (a) air pressure (b) magnetism
38. 38.True or false: a vacuum cleaner works by air pressure. (a) True (b) False
39. 39.True or false: a bicycle pump works by magnetism. (a) True (b) False
40. 40.🧺 Do we need yeast for the card-on-a-glass trick? (a) needed (b) not needed

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