Air Pressure Experiment Worksheet

Science experiments lesson 6: Air pressure: the card on a glass · Set 914 · 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.🛟 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 heavier (d) it is magnetic
2. 2.🧺 Do we need turmeric powder 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: how full the glass is is what we measure. (a) True (b) False
4. 4.⚖️ 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) the way we turn it (b) how full the glass is (c) the same glass (d) whether the card stays
5. 5.🔍 Which is the odd one out? (a) a vacuum cleaner (b) a fridge magnet (c) a suction hook (d) a drinking straw
6. 6.🧺 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 balloon (d) a towel
7. 7.🧺 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 sink or a bucket
8. 8.🔮 Predict: you squeeze an empty plastic bottle with its cap screwed on tight. Why is it hard? (a) the cap is sticky (b) air inside pushes back (c) the bottle is magnetic (d) water is hiding there
9. 9.⚖️ 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 kept the same. (a) False (b) True
10. 10.🥛 Does a magnetic chess set work by air pressure or by magnetism? (a) air pressure (b) magnetism
11. 11.🛟 Where should you do the card-and-glass trick? (a) over a laptop (b) on a bed (c) near a plug point (d) over a sink or bucket
12. 12.⚖️ 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 measure it (b) we keep it the same (c) we change it
13. 13.⚖️ 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 card (c) whether the card stays
14. 14.🧺 Three of these are needed for the card-on-a-glass trick. Which one is NOT needed? (a) a glass of water (b) yeast (c) a stiff postcard (d) a towel
15. 15.⚖️ Fair test — does the card stay on with a full glass and with a half-full glass? True or false: how full the glass is is the one thing we change. (a) True (b) False
16. 16.🧺 Three of these are needed for the card-on-a-glass trick. Which one is NOT needed? (a) a stiff postcard (b) a towel (c) a glass of water (d) a battery cell
17. 17.True or false: a stiff postcard is not needed for the card-on-a-glass trick. (a) True (b) False
18. 18.🔍 Which is the odd one out? (a) a magnetic pin holder (b) a compass needle (c) a fridge magnet (d) a bicycle pump
19. 19.🥛 Does a drinking straw work by air pressure or by magnetism? (a) magnetism (b) air pressure
20. 20.🧺 Three of these are needed for the card-on-a-glass trick. Which one is NOT needed? (a) a towel (b) a mirror (c) a stiff postcard (d) a sink or a bucket
21. 21.True or false: a vacuum cleaner works by magnetism. (a) True (b) False
22. 22.🥛 Which of these works by magnetism? (a) a vacuum cleaner (b) a suction hook (c) a bicycle pump (d) a fridge magnet
23. 23.🧺 Do we need yeast for the card-on-a-glass trick? (a) needed (b) not needed
24. 24.🥛 Which of these works by air pressure? (a) a compass needle (b) a suction hook (c) a magnetic pin holder (d) a fridge magnet
25. 25.⚖️ 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 measure it (c) we change it
26. 26.🧺 Do we need a glass of water for the card-on-a-glass trick? (a) not needed (b) needed
27. 27.⚖️ 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
28. 28.⚖️ 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 way we turn it (c) the same card (d) how full the glass is
29. 29.True or false: a mirror is not needed for the card-on-a-glass trick. (a) True (b) False
30. 30.🔮 Predict: you blow up a balloon. What fills it? (a) water (b) sand (c) smoke (d) air
31. 31.🥛 Which of these works by magnetism? (a) a suction hook (b) a bicycle pump (c) a compass needle (d) a drinking straw
32. 32.🔍 Which is the odd one out? (a) a vacuum cleaner (b) a suction hook (c) a drinking straw (d) a magnetic chess set
33. 33.🥛 Why is it best to fill the glass right to the top? (a) it looks nicer (b) little air left inside (c) the card gets wet (d) water is heavier
34. 34.🥛 Does a vacuum cleaner work by air pressure or by magnetism? (a) magnetism (b) air pressure
35. 35.True or false: a medicine dropper works by air pressure. (a) False (b) True
36. 36.🔍 Which is the odd one out? (a) a compass needle (b) a magnetic chess set (c) a fridge magnet (d) a drinking straw
37. 37.🧺 Do we need a battery cell for the card-on-a-glass trick? (a) not needed (b) needed
38. 38.🥛 Does a bicycle pump work by air pressure or by magnetism? (a) magnetism (b) air pressure
39. 39.True or false: a magnetic chess set works by magnetism. (a) False (b) True
40. 40.🔍 Which is the odd one out? (a) a vacuum cleaner (b) a suction hook (c) a bicycle pump (d) a magnetic pin holder

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