Air Pressure Experiment Worksheet

Science experiments lesson 6: Air pressure: the card on a glass · Set 147 · 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.🧺 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 balloon (d) a glass of water
2. 2.🧺 Do we need a magnet for the card-on-a-glass trick? (a) needed (b) not needed
3. 3.🧺 Which of these is needed for the card-on-a-glass trick? (a) a sink or a bucket (b) a balloon (c) a magnet (d) a battery cell
4. 4.True or false: a stiff postcard is needed for the card-on-a-glass trick. (a) False (b) True
5. 5.🔮 Predict: you blow up a balloon. What fills it? (a) smoke (b) sand (c) air (d) water
6. 6.🛟 Why is a plastic cup safer than a glass for small children here? (a) it is magnetic (b) it is hotter (c) it will not break (d) it is heavier
7. 7.⚖️ 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 way we turn it (b) how full the glass is (c) the same glass (d) whether the card stays
8. 8.🧺 Which of these is not needed for the card-on-a-glass trick? (a) a glass of water (b) a stiff postcard (c) a balloon (d) a towel
9. 9.⚖️ 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) the way we turn it (c) how full the glass is (d) the same glass
10. 10.🥤 Why does juice go up a drinking straw when you sip? (a) the straw is hot (b) juice likes plastic (c) air pushes it up (d) the straw is magnetic
11. 11.🔮 Predict: you squeeze an empty plastic bottle with its cap screwed on tight. Why is it hard? (a) water is hiding there (b) the bottle is magnetic (c) air inside pushes back (d) the cap is sticky
12. 12.🔍 Which is the odd one out? (a) a medicine dropper (b) a vacuum cleaner (c) a drinking straw (d) a magnetic pin holder
13. 13.⚖️ 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 what we measure. (a) True (b) False
14. 14.🧺 Three of these are needed for the card-on-a-glass trick. Which one is NOT needed? (a) a stiff postcard (b) a glass of water (c) a mirror (d) a sink or a bucket
15. 15.⚖️ Fair test — does the card stay on with a full glass and with a half-full glass? True or false: whether the card stays is kept the same. (a) True (b) False
16. 16.True or false: a glass of water is not needed for the card-on-a-glass trick. (a) True (b) False
17. 17.🧺 Which of these is not needed for the card-on-a-glass trick? (a) a glass of water (b) a magnet (c) a sink or a bucket (d) a stiff postcard
18. 18.⚖️ 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 keep it the same (b) we measure it (c) we change it
19. 19.⚖️ 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) the way we turn it (c) how full the glass is
20. 20.⚖️ 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
21. 21.True or false: a balloon is needed for the card-on-a-glass trick. (a) True (b) False
22. 22.🥛 Does a drinking straw work by air pressure or by magnetism? (a) air pressure (b) magnetism
23. 23.🔍 Which is the odd one out? (a) a medicine dropper (b) a compass needle (c) a fridge magnet (d) a magnetic chess set
24. 24.🔍 Which is the odd one out? (a) a fridge magnet (b) a compass needle (c) a magnetic chess set (d) a suction hook
25. 25.🧺 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) turmeric powder (d) a towel
26. 26.🧺 Which of these is needed for the card-on-a-glass trick? (a) a magnet (b) a glass of water (c) a battery cell (d) turmeric powder
27. 27.⚖️ Fair test — does the card stay on with a full glass and with a half-full glass? True or false: the same card is kept the same. (a) True (b) False
28. 28.⚖️ 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
29. 29.🥛 Does a compass needle work by air pressure or by magnetism? (a) air pressure (b) magnetism
30. 30.🧺 Do we need yeast for the card-on-a-glass trick? (a) not needed (b) needed
31. 31.⚖️ 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 change it (b) we keep it the same (c) we measure it
32. 32.🥛 Does a fridge magnet work by air pressure or by magnetism? (a) air pressure (b) magnetism
33. 33.🔍 Which is the odd one out? (a) a bicycle pump (b) a fridge magnet (c) a suction hook (d) a medicine dropper
34. 34.🔍 Which is the odd one out? (a) a drinking straw (b) a vacuum cleaner (c) a suction hook (d) a compass needle
35. 35.🔍 Which is the odd one out? (a) a bicycle pump (b) a suction hook (c) a magnetic chess set (d) a drinking straw
36. 36.🔍 Which is the odd one out? (a) a bicycle pump (b) a compass needle (c) a magnetic pin holder (d) a fridge magnet
37. 37.🥛 Does a medicine dropper work by air pressure or by magnetism? (a) magnetism (b) air pressure
38. 38.🧺 Do we need a mirror for the card-on-a-glass trick? (a) needed (b) not needed
39. 39.🥛 Does a bicycle pump work by air pressure or by magnetism? (a) air pressure (b) magnetism
40. 40.🥛 Does a magnetic chess set work by air pressure or by magnetism? (a) magnetism (b) air pressure

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