Air Pressure Experiment Worksheet

Science experiments lesson 6: Air pressure: the card on a glass · Set 236 · 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? Which of these is kept the same? (a) the way we turn it (b) whether the card stays (c) how full the glass is
2. 2.True or false: a balloon is needed for the card-on-a-glass trick. (a) False (b) True
3. 3.🔮 Predict: you squeeze an empty plastic bottle with its cap screwed on tight. Why is it hard? (a) the bottle is magnetic (b) water is hiding there (c) the cap is sticky (d) air inside pushes back
4. 4.⚖️ 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
5. 5.🧺 Do we need a battery cell for the card-on-a-glass trick? (a) needed (b) not needed
6. 6.🛟 Why is a plastic cup safer than a glass for small children here? (a) it is hotter (b) it will not break (c) it is heavier (d) it is magnetic
7. 7.🔍 Which is the odd one out? (a) a compass needle (b) a bicycle pump (c) a magnetic pin holder (d) a fridge magnet
8. 8.🔍 Which is the odd one out? (a) a medicine dropper (b) a suction hook (c) a compass needle (d) a bicycle pump
9. 9.🥛 Does a magnetic chess set work by air pressure or by magnetism? (a) air pressure (b) magnetism
10. 10.⚖️ 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 card (c) whether the card stays (d) the way we turn it
11. 11.True or false: a glass of water is not needed for the card-on-a-glass trick. (a) False (b) True
12. 12.🥛 Which of these works by magnetism? (a) a fridge magnet (b) a bicycle pump (c) a drinking straw (d) a suction hook
13. 13.🥛 What holds the card up against the upside-down glass? (a) a magnet (b) the cold water (c) glue on the card (d) air pushing up
14. 14.🧺 Three of these are needed for the card-on-a-glass trick. Which one is NOT needed? (a) turmeric powder (b) a towel (c) a sink or a bucket (d) a glass of water
15. 15.🥤 Why does juice go up a drinking straw when you sip? (a) the straw is magnetic (b) air pushes it up (c) juice likes plastic (d) the straw is hot
16. 16.🧺 Which of these is not needed for the card-on-a-glass trick? (a) a balloon (b) a stiff postcard (c) a glass of water (d) a sink or a bucket
17. 17.⚖️ 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 same glass (b) how full the glass is (c) the same card (d) whether the card stays
18. 18.⚖️ 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
19. 19.🔮 Predict: you blow up a balloon. What fills it? (a) smoke (b) water (c) sand (d) air
20. 20.⚖️ 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
21. 21.⚖️ Fair test — does the card stay on with a full glass and with a half-full glass? True or false: the same glass is the one thing we change. (a) False (b) True
22. 22.⚖️ 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) False (b) True
23. 23.🧺 Three of these are needed for the card-on-a-glass trick. Which one is NOT needed? (a) yeast (b) a stiff postcard (c) a towel (d) a glass of water
24. 24.🔍 Which is the odd one out? (a) a fridge magnet (b) a drinking straw (c) a magnetic chess set (d) a magnetic pin holder
25. 25.🥛 Does a drinking straw work by air pressure or by magnetism? (a) magnetism (b) air pressure
26. 26.🛟 Where should you do the card-and-glass trick? (a) over a laptop (b) on a bed (c) over a sink or bucket (d) near a plug point
27. 27.⚖️ 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
28. 28.True or false: a drinking straw works by magnetism. (a) False (b) True
29. 29.True or false: a compass needle works by air pressure. (a) False (b) True
30. 30.True or false: a fridge magnet works by air pressure. (a) False (b) True
31. 31.🥛 Which of these works by magnetism? (a) a suction hook (b) a medicine dropper (c) a magnetic pin holder (d) a drinking straw
32. 32.True or false: a medicine dropper works by magnetism. (a) True (b) False
33. 33.🥛 Which of these works by air pressure? (a) a bicycle pump (b) a magnetic pin holder (c) a compass needle (d) a fridge magnet
34. 34.🧺 Three of these are needed for the card-on-a-glass trick. Which one is NOT needed? (a) a stiff postcard (b) a battery cell (c) a sink or a bucket (d) a towel
35. 35.True or false: a magnetic chess set works by air pressure. (a) False (b) True
36. 36.True or false: a magnetic chess set works by magnetism. (a) False (b) True
37. 37.🔍 Which is the odd one out? (a) a fridge magnet (b) a magnetic pin holder (c) a compass needle (d) a medicine dropper
38. 38.True or false: yeast is needed for the card-on-a-glass trick. (a) False (b) True
39. 39.True or false: a stiff postcard is not needed for the card-on-a-glass trick. (a) True (b) False
40. 40.🥛 Which of these works by magnetism? (a) a vacuum cleaner (b) a compass needle (c) a drinking straw (d) a medicine dropper

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