Air Pressure Experiment Worksheet

Science experiments lesson 6: Air pressure: the card on a glass · Set 211 · 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 sink or a bucket (b) a glass of water (c) a balloon (d) a towel
2. 2.🧺 Which of these is needed for the card-on-a-glass trick? (a) yeast (b) a mirror (c) a battery cell (d) a sink or a bucket
3. 3.⚖️ 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 keep it the same (b) we change it (c) we measure it
4. 4.🛟 Where should you do the card-and-glass trick? (a) near a plug point (b) on a bed (c) over a laptop (d) over a sink or bucket
5. 5.True or false: a suction hook works by air pressure. (a) True (b) False
6. 6.🥛 Does a medicine dropper work by air pressure or by magnetism? (a) air pressure (b) magnetism
7. 7.🔮 Why do we try the card trick over a sink or a bucket? (a) to make it rain (b) to grow plants (c) to catch any spills (d) to cool the glass
8. 8.⚖️ 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 change it (b) we keep it the same (c) we measure it
9. 9.🥛 Which of these works by magnetism? (a) a bicycle pump (b) a compass needle (c) a suction hook (d) a drinking straw
10. 10.🔍 Which is the odd one out? (a) a fridge magnet (b) a magnetic chess set (c) a magnetic pin holder (d) a medicine dropper
11. 11.🥛 Which of these works by magnetism? (a) a magnetic pin holder (b) a suction hook (c) a bicycle pump (d) a drinking straw
12. 12.True or false: a balloon is needed for the card-on-a-glass trick. (a) False (b) True
13. 13.🥛 Which of these works by air pressure? (a) a compass needle (b) a magnetic chess set (c) a fridge magnet (d) a bicycle pump
14. 14.🧺 Do we need a magnet for the card-on-a-glass trick? (a) needed (b) not needed
15. 15.True or false: a magnetic chess set works by air pressure. (a) False (b) True
16. 16.⚖️ 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
17. 17.⚖️ Fair test — does the card stay on with a full glass and with a half-full glass? True or false: the same glass is what we measure. (a) False (b) True
18. 18.🥛 Does a vacuum cleaner work by air pressure or by magnetism? (a) magnetism (b) air pressure
19. 19.⚖️ 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) whether the card stays (d) the same card
20. 20.🥛 Which of these works by air pressure? (a) a compass needle (b) a drinking straw (c) a magnetic pin holder (d) a fridge magnet
21. 21.🥛 Does a magnetic chess set work by air pressure or by magnetism? (a) air pressure (b) magnetism
22. 22.🔍 Which is the odd one out? (a) a drinking straw (b) a suction hook (c) a compass needle (d) a vacuum cleaner
23. 23.True or false: a medicine dropper works by air pressure. (a) True (b) False
24. 24.🧺 Do we need a towel for the card-on-a-glass trick? (a) not needed (b) needed
25. 25.🥛 Which of these works by air pressure? (a) a compass needle (b) a magnetic chess set (c) a magnetic pin holder (d) a suction hook
26. 26.⚖️ 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) the same glass (c) the same card (d) how full the glass is
27. 27.🥛 Does a bicycle pump work by air pressure or by magnetism? (a) air pressure (b) magnetism
28. 28.🔮 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) the cap is sticky (d) water is hiding there
29. 29.🔍 Which is the odd one out? (a) a magnetic pin holder (b) a drinking straw (c) a fridge magnet (d) a compass needle
30. 30.True or false: a magnet is not needed for the card-on-a-glass trick. (a) True (b) False
31. 31.🛟 Why is a plastic cup safer than a glass for small children here? (a) it is hotter (b) it is heavier (c) it is magnetic (d) it will not break
32. 32.⚖️ 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) True (b) False
33. 33.🔮 Predict: you blow up a balloon. What fills it? (a) sand (b) smoke (c) air (d) water
34. 34.🧺 Which of these is not needed for the card-on-a-glass trick? (a) a towel (b) a sink or a bucket (c) a mirror (d) a stiff postcard
35. 35.🧺 Do we need turmeric powder for the card-on-a-glass trick? (a) needed (b) not needed
36. 36.🔍 Which is the odd one out? (a) a magnetic chess set (b) a suction hook (c) a bicycle pump (d) a medicine dropper
37. 37.⚖️ 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
38. 38.🧺 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 glass of water (c) a stiff postcard (d) a mirror
39. 39.True or false: a magnetic pin holder works by air pressure. (a) False (b) True
40. 40.True or false: a medicine dropper works by magnetism. (a) True (b) False

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