Air Pressure Experiment Worksheet

Science experiments lesson 6: Air pressure: the card on a glass · Set 608 · 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 bicycle pump works by air pressure. (a) True (b) False
2. 2.🛟 Why is a plastic cup safer than a glass for small children here? (a) it is magnetic (b) it is heavier (c) it is hotter (d) it will not break
3. 3.🔍 Which is the odd one out? (a) a magnetic pin holder (b) a compass needle (c) a fridge magnet (d) a medicine dropper
4. 4.True or false: a bicycle pump works by magnetism. (a) False (b) True
5. 5.🔍 Which is the odd one out? (a) a suction hook (b) a fridge magnet (c) a medicine dropper (d) a vacuum cleaner
6. 6.🧺 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 stiff postcard (d) a glass of water
7. 7.🥛 Does a compass needle work by air pressure or by magnetism? (a) air pressure (b) magnetism
8. 8.🥛 Does a medicine dropper work by air pressure or by magnetism? (a) magnetism (b) air pressure
9. 9.🧺 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
10. 10.True or false: a mirror is needed for the card-on-a-glass trick. (a) True (b) False
11. 11.⚖️ 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 measure it (c) we keep it the same
12. 12.🧺 Do we need a sink or a bucket for the card-on-a-glass trick? (a) needed (b) not needed
13. 13.🥛 Which of these works by magnetism? (a) a magnetic pin holder (b) a vacuum cleaner (c) a medicine dropper (d) a drinking straw
14. 14.🔮 Predict: you squeeze an empty plastic bottle with its cap screwed on tight. Why is it hard? (a) the cap is sticky (b) water is hiding there (c) air inside pushes back (d) the bottle is magnetic
15. 15.🛟 Where should you do the card-and-glass trick? (a) on a bed (b) over a laptop (c) near a plug point (d) over a sink or bucket
16. 16.⚖️ 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
17. 17.🔮 Why do we try the card trick over a sink or a bucket? (a) to grow plants (b) to make it rain (c) to cool the glass (d) to catch any spills
18. 18.🧺 Three of these are needed for the card-on-a-glass trick. Which one is NOT needed? (a) a towel (b) a stiff postcard (c) a battery cell (d) a glass of water
19. 19.⚖️ 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 measure it (b) we keep it the same (c) we change it
20. 20.🧺 Three of these are needed for the card-on-a-glass trick. Which one is NOT needed? (a) a glass of water (b) a stiff postcard (c) a towel (d) a balloon
21. 21.📘 Air presses on everything around us. What is this push called? (a) magnetism (b) air pressure (c) sunlight (d) friction
22. 22.🥛 Which of these works by air pressure? (a) a bicycle pump (b) a magnetic pin holder (c) a fridge magnet (d) a magnetic chess set
23. 23.🥤 Why does juice go up a drinking straw when you sip? (a) juice likes plastic (b) the straw is hot (c) the straw is magnetic (d) air pushes it up
24. 24.⚖️ 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) whether the card stays (c) how full the glass is (d) the same card
25. 25.🔍 Which is the odd one out? (a) a suction hook (b) a magnetic chess set (c) a fridge magnet (d) a magnetic pin holder
26. 26.True or false: a sink or a bucket is not needed for the card-on-a-glass trick. (a) True (b) False
27. 27.True or false: a balloon is not needed for the card-on-a-glass trick. (a) False (b) True
28. 28.🥛 Does a drinking straw work by air pressure or by magnetism? (a) air pressure (b) magnetism
29. 29.⚖️ 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) False (b) True
30. 30.⚖️ 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) how full the glass is (b) the same glass (c) whether the card stays
31. 31.🧺 Do we need a stiff postcard for the card-on-a-glass trick? (a) not needed (b) needed
32. 32.True or false: a mirror is not needed for the card-on-a-glass trick. (a) True (b) False
33. 33.🥛 Does a fridge magnet work by air pressure or by magnetism? (a) air pressure (b) magnetism
34. 34.🥛 Does a suction hook work by air pressure or by magnetism? (a) air pressure (b) magnetism
35. 35.True or false: a sink or a bucket is needed for the card-on-a-glass trick. (a) False (b) True
36. 36.🥛 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
37. 37.🧺 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 glass of water (c) a towel (d) a mirror
38. 38.True or false: a magnetic chess set works by air pressure. (a) False (b) True
39. 39.True or false: a glass of water is not needed for the card-on-a-glass trick. (a) False (b) True
40. 40.🧺 Do we need a mirror for the card-on-a-glass trick? (a) needed (b) not needed

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