Air Pressure Experiment Worksheet

Science experiments lesson 6: Air pressure: the card on a glass · Set 484 · 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 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
2. 2.🔍 Which is the odd one out? (a) a drinking straw (b) a vacuum cleaner (c) a medicine dropper (d) a magnetic chess set
3. 3.🔍 Which is the odd one out? (a) a medicine dropper (b) a fridge magnet (c) a suction hook (d) a drinking straw
4. 4.🥛 Which of these works by magnetism? (a) a bicycle pump (b) a magnetic chess set (c) a suction hook (d) a drinking straw
5. 5.🧺 Which of these is not needed for the card-on-a-glass trick? (a) a sink or a bucket (b) a towel (c) a battery cell (d) a glass of water
6. 6.True or false: a compass needle works by air pressure. (a) True (b) False
7. 7.True or false: a compass needle works by magnetism. (a) False (b) True
8. 8.🥛 Does a medicine dropper work by air pressure or by magnetism? (a) air pressure (b) magnetism
9. 9.🥤 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
10. 10.⚖️ 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
11. 11.⚖️ 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 what we measure. (a) False (b) True
12. 12.⚖️ 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 measure it (c) we change it
13. 13.🛟 Where should you do the card-and-glass trick? (a) on a bed (b) over a laptop (c) near a plug point (d) over a sink or bucket
14. 14.🔍 Which is the odd one out? (a) a fridge magnet (b) a magnetic pin holder (c) a medicine dropper (d) a compass needle
15. 15.🧺 Do we need a sink or a bucket for the card-on-a-glass trick? (a) not needed (b) needed
16. 16.🧺 Which of these is not needed for the card-on-a-glass trick? (a) a sink or a bucket (b) a towel (c) yeast (d) a glass of water
17. 17.🥛 What holds the card up against the upside-down glass? (a) a magnet (b) air pushing up (c) the cold water (d) glue on the card
18. 18.🥛 Does a fridge magnet work by air pressure or by magnetism? (a) air pressure (b) magnetism
19. 19.🛟 Why is a plastic cup safer than a glass for small children here? (a) it will not break (b) it is heavier (c) it is hotter (d) it is magnetic
20. 20.⚖️ 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 same card
21. 21.🥛 Which of these works by air pressure? (a) a medicine dropper (b) a magnetic pin holder (c) a magnetic chess set (d) a fridge magnet
22. 22.🔍 Which is the odd one out? (a) a fridge magnet (b) a drinking straw (c) a magnetic pin holder (d) a magnetic chess set
23. 23.🥛 Does a magnetic pin holder work by air pressure or by magnetism? (a) magnetism (b) air pressure
24. 24.🧺 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 towel (c) a glass of water (d) a battery cell
25. 25.🥛 Which of these works by air pressure? (a) a drinking straw (b) a compass needle (c) a magnetic chess set (d) a fridge magnet
26. 26.True or false: a medicine dropper works by air pressure. (a) True (b) False
27. 27.🧺 Which of these is not needed for the card-on-a-glass trick? (a) a towel (b) a sink or a bucket (c) a balloon (d) a glass of water
28. 28.True or false: a bicycle pump works by air pressure. (a) False (b) True
29. 29.🥛 Does a compass needle work by air pressure or by magnetism? (a) air pressure (b) magnetism
30. 30.🥛 Which of these works by magnetism? (a) a fridge magnet (b) a vacuum cleaner (c) a medicine dropper (d) a bicycle pump
31. 31.⚖️ 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 same card (b) the same glass (c) how full the glass is (d) whether the card stays
32. 32.True or false: turmeric powder is needed for the card-on-a-glass trick. (a) True (b) False
33. 33.🧺 Three of these are needed for the card-on-a-glass trick. Which one is NOT needed? (a) a glass of water (b) a magnet (c) a towel (d) a stiff postcard
34. 34.🧺 Do we need a battery cell for the card-on-a-glass trick? (a) not needed (b) needed
35. 35.🧺 Which of these is needed for the card-on-a-glass trick? (a) turmeric powder (b) a mirror (c) a towel (d) yeast
36. 36.⚖️ 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 keep it the same (b) we change it (c) we measure it
37. 37.True or false: a mirror is not needed for the card-on-a-glass trick. (a) True (b) False
38. 38.🔍 Which is the odd one out? (a) a vacuum cleaner (b) a magnetic pin holder (c) a compass needle (d) a magnetic chess set
39. 39.🧺 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 towel (c) a glass of water (d) yeast
40. 40.True or false: a sink or a bucket is not needed for the card-on-a-glass trick. (a) True (b) False

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