Air Pressure Experiment Worksheet

Science experiments lesson 6: Air pressure: the card on a glass · Set 515 · 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.🛟 Where should you do the card-and-glass trick? (a) on a bed (b) near a plug point (c) over a laptop (d) over a sink or bucket
2. 2.True or false: yeast is not needed for the card-on-a-glass trick. (a) False (b) True
3. 3.⚖️ 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) how full the glass is (c) the same card
4. 4.🧺 Do we need a sink or a bucket for the card-on-a-glass trick? (a) needed (b) not needed
5. 5.True or false: a battery cell is not needed for the card-on-a-glass trick. (a) False (b) True
6. 6.🧺 Do we need a balloon for the card-on-a-glass trick? (a) not needed (b) needed
7. 7.🧺 Three of these are needed for the card-on-a-glass trick. Which one is NOT needed? (a) a glass of water (b) a towel (c) a magnet (d) a stiff postcard
8. 8.🧺 Three of these are needed for the card-on-a-glass trick. Which one is NOT needed? (a) yeast (b) a glass of water (c) a sink or a bucket (d) a stiff postcard
9. 9.🛟 Why is a plastic cup safer than a glass for small children here? (a) it is hotter (b) it is magnetic (c) it is heavier (d) it will not break
10. 10.🥛 Why is it best to fill the glass right to the top? (a) it looks nicer (b) water is heavier (c) little air left inside (d) the card gets wet
11. 11.📘 Air presses on everything around us. What is this push called? (a) magnetism (b) sunlight (c) air pressure (d) friction
12. 12.True or false: a sink or a bucket is needed for the card-on-a-glass trick. (a) False (b) True
13. 13.🧺 Do we need a magnet for the card-on-a-glass trick? (a) needed (b) not needed
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) how full the glass is (b) whether the card stays (c) the way we turn it
15. 15.🔍 Which is the odd one out? (a) a bicycle pump (b) a medicine dropper (c) a suction hook (d) a magnetic chess set
16. 16.True or false: a vacuum cleaner works by air pressure. (a) True (b) False
17. 17.True or false: a medicine dropper works by magnetism. (a) True (b) False
18. 18.True or false: a battery cell is needed for the card-on-a-glass trick. (a) False (b) True
19. 19.🥛 Does a vacuum cleaner work by air pressure or by magnetism? (a) magnetism (b) air pressure
20. 20.🔮 Predict: you blow up a balloon. What fills it? (a) water (b) sand (c) smoke (d) air
21. 21.⚖️ 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) how full the glass is (b) the same glass (c) whether the card stays (d) the way we turn it
22. 22.🥤 Why does juice go up a drinking straw when you sip? (a) juice likes plastic (b) air pushes it up (c) the straw is magnetic (d) the straw is hot
23. 23.⚖️ 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) False (b) True
24. 24.True or false: a sink or a bucket is not needed for the card-on-a-glass trick. (a) True (b) False
25. 25.🥛 Does a compass needle work by air pressure or by magnetism? (a) air pressure (b) magnetism
26. 26.⚖️ 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 card (c) the same glass (d) whether the card stays
27. 27.🔮 Predict: you squeeze an empty plastic bottle with its cap screwed on tight. Why is it hard? (a) the bottle is magnetic (b) the cap is sticky (c) air inside pushes back (d) water is hiding there
28. 28.🧺 Do we need a towel for the card-on-a-glass trick? (a) not needed (b) needed
29. 29.🔍 Which is the odd one out? (a) a vacuum cleaner (b) a drinking straw (c) a compass needle (d) a bicycle pump
30. 30.🥛 Does a magnetic pin holder work by air pressure or by magnetism? (a) magnetism (b) air pressure
31. 31.🧺 Do we need a mirror for the card-on-a-glass trick? (a) needed (b) not needed
32. 32.🧺 Which of these is needed for the card-on-a-glass trick? (a) a battery cell (b) a towel (c) a mirror (d) turmeric powder
33. 33.🥛 Which of these works by air pressure? (a) a compass needle (b) a drinking straw (c) a fridge magnet (d) a magnetic chess set
34. 34.🧺 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 balloon (d) a towel
35. 35.True or false: a magnet is not needed for the card-on-a-glass trick. (a) True (b) False
36. 36.🥛 Which of these works by magnetism? (a) a magnetic pin holder (b) a medicine dropper (c) a drinking straw (d) a bicycle pump
37. 37.🧺 Three of these are needed for the card-on-a-glass trick. Which one is NOT needed? (a) a glass of water (b) a mirror (c) a towel (d) a stiff postcard
38. 38.🥛 Does a suction hook work by air pressure or by magnetism? (a) air pressure (b) magnetism
39. 39.🥛 Which of these works by magnetism? (a) a medicine dropper (b) a magnetic chess set (c) a bicycle pump (d) a vacuum cleaner
40. 40.True or false: a bicycle pump works by air pressure. (a) False (b) True

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