Air Pressure Experiment Worksheet

Science experiments lesson 6: Air pressure: the card on a glass · Set 808 · 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.⚖️ 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 change it (c) we keep it the same
2. 2.🥛 Does a medicine dropper work by air pressure or by magnetism? (a) magnetism (b) air pressure
3. 3.🧺 Three of these are needed for the card-on-a-glass trick. Which one is NOT needed? (a) a mirror (b) a sink or a bucket (c) a towel (d) a glass of water
4. 4.⚖️ 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
5. 5.🔍 Which is the odd one out? (a) a bicycle pump (b) a suction hook (c) a medicine dropper (d) a fridge magnet
6. 6.True or false: a fridge magnet works by magnetism. (a) True (b) False
7. 7.🛟 Why is a plastic cup safer than a glass for small children here? (a) it is magnetic (b) it will not break (c) it is hotter (d) it is heavier
8. 8.True or false: a suction hook works by air pressure. (a) False (b) True
9. 9.🔮 Predict: you squeeze an empty plastic bottle with its cap screwed on tight. Why is it hard? (a) air inside pushes back (b) the bottle is magnetic (c) water is hiding there (d) the cap is sticky
10. 10.🛟 Where should you do the card-and-glass trick? (a) over a laptop (b) near a plug point (c) on a bed (d) over a sink or bucket
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) whether the card stays (b) how full the glass is (c) the same card (d) the way we turn it
12. 12.🥛 Which of these works by magnetism? (a) a compass needle (b) a vacuum cleaner (c) a suction hook (d) a drinking straw
13. 13.🧺 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) a stiff postcard (d) a battery cell
14. 14.⚖️ 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 way we turn it (d) how full the glass is
15. 15.🧺 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) turmeric powder (d) a sink or a bucket
16. 16.🧺 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
17. 17.🧺 Do we need a balloon for the card-on-a-glass trick? (a) not needed (b) needed
18. 18.True or false: a glass of water is needed for the card-on-a-glass trick. (a) False (b) True
19. 19.🧺 Do we need a glass of water 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) a glass of water (b) a sink or a bucket (c) a towel (d) yeast
21. 21.🥛 Which of these works by magnetism? (a) a drinking straw (b) a suction hook (c) a bicycle pump (d) a magnetic pin holder
22. 22.🥛 Does a vacuum cleaner work by air pressure or by magnetism? (a) air pressure (b) magnetism
23. 23.⚖️ 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 measure it (b) we change it (c) we keep it the same
24. 24.🧺 Do we need a stiff postcard for the card-on-a-glass trick? (a) needed (b) not needed
25. 25.True or false: a fridge magnet works by air pressure. (a) False (b) True
26. 26.True or false: a magnetic pin holder works by magnetism. (a) True (b) False
27. 27.🔮 Why do we try the card trick over a sink or a bucket? (a) to grow plants (b) to make it rain (c) to catch any spills (d) to cool the glass
28. 28.🥤 Why does juice go up a drinking straw when you sip? (a) the straw is magnetic (b) air pushes it up (c) the straw is hot (d) juice likes plastic
29. 29.🥛 Does a bicycle pump work by air pressure or by magnetism? (a) air pressure (b) magnetism
30. 30.🧺 Do we need a sink or a bucket for the card-on-a-glass trick? (a) needed (b) not needed
31. 31.True or false: a magnetic chess set works by air pressure. (a) True (b) False
32. 32.🔍 Which is the odd one out? (a) a medicine dropper (b) a magnetic pin holder (c) a bicycle pump (d) a vacuum cleaner
33. 33.True or false: a drinking straw works by magnetism. (a) False (b) True
34. 34.🥛 What holds the card up against the upside-down glass? (a) air pushing up (b) a magnet (c) glue on the card (d) the cold water
35. 35.🥛 Which of these works by air pressure? (a) a magnetic chess set (b) a compass needle (c) a magnetic pin holder (d) a drinking straw
36. 36.🧺 Three of these are needed for the card-on-a-glass trick. Which one is NOT needed? (a) a magnet (b) a stiff postcard (c) a towel (d) a glass of water
37. 37.🧺 Which of these is needed for the card-on-a-glass trick? (a) a stiff postcard (b) a mirror (c) turmeric powder (d) a balloon
38. 38.🥛 Does a magnetic chess set work by air pressure or by magnetism? (a) air pressure (b) magnetism
39. 39.True or false: a vacuum cleaner works by air pressure. (a) False (b) True
40. 40.⚖️ 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 keep it the same (c) we change it

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