Air Pressure Experiment Worksheet

Science experiments lesson 6: Air pressure: the card on a glass · Set 100 · 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.🧺 Which of these is needed for the card-on-a-glass trick? (a) yeast (b) a mirror (c) a towel (d) a balloon
2. 2.🧺 Which of these is needed for the card-on-a-glass trick? (a) a mirror (b) yeast (c) a sink or a bucket (d) a magnet
3. 3.⚖️ 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
4. 4.True or false: a towel is not needed for the card-on-a-glass trick. (a) False (b) True
5. 5.🥛 Does a suction hook work by air pressure or by magnetism? (a) air pressure (b) magnetism
6. 6.True or false: a drinking straw works by magnetism. (a) False (b) True
7. 7.🛟 Where should you do the card-and-glass trick? (a) on a bed (b) over a sink or bucket (c) near a plug point (d) over a laptop
8. 8.🧺 Three of these are needed for the card-on-a-glass trick. Which one is NOT needed? (a) a glass of water (b) a towel (c) a stiff postcard (d) a magnet
9. 9.True or false: a glass of water is needed for the card-on-a-glass trick. (a) True (b) False
10. 10.🥤 Why does juice go up a drinking straw when you sip? (a) the straw is hot (b) air pushes it up (c) the straw is magnetic (d) juice likes plastic
11. 11.🔮 Why do we try the card trick over a sink or a bucket? (a) to grow plants (b) to make it rain (c) to cool the glass (d) to catch any spills
12. 12.⚖️ 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 change it (c) we keep it the same
13. 13.🔍 Which is the odd one out? (a) a magnetic pin holder (b) a suction hook (c) a vacuum cleaner (d) a medicine dropper
14. 14.🥛 What holds the card up against the upside-down glass? (a) a magnet (b) glue on the card (c) the cold water (d) air pushing up
15. 15.🔍 Which is the odd one out? (a) a magnetic chess set (b) a vacuum cleaner (c) a fridge magnet (d) a compass needle
16. 16.🥛 Which of these works by air pressure? (a) a magnetic pin holder (b) a suction hook (c) a compass needle (d) a fridge magnet
17. 17.🧺 Do we need a stiff postcard for the card-on-a-glass trick? (a) not needed (b) needed
18. 18.⚖️ 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
19. 19.🥛 Does a drinking straw work by air pressure or by magnetism? (a) magnetism (b) air pressure
20. 20.⚖️ 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) False (b) True
21. 21.🔍 Which is the odd one out? (a) a bicycle pump (b) a suction hook (c) a vacuum cleaner (d) a compass needle
22. 22.🥛 Which of these works by air pressure? (a) a magnetic chess set (b) a vacuum cleaner (c) a fridge magnet (d) a compass needle
23. 23.⚖️ 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
24. 24.🥛 Which of these works by magnetism? (a) a vacuum cleaner (b) a medicine dropper (c) a magnetic pin holder (d) a suction hook
25. 25.⚖️ 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 same glass (c) the same card (d) how full the glass is
26. 26.🥛 Which of these works by air pressure? (a) a compass needle (b) a medicine dropper (c) a magnetic pin holder (d) a fridge magnet
27. 27.🥛 Which of these works by air pressure? (a) a magnetic chess set (b) a magnetic pin holder (c) a bicycle pump (d) a fridge magnet
28. 28.🧺 Which of these is needed for the card-on-a-glass trick? (a) a mirror (b) a balloon (c) a battery cell (d) a glass of water
29. 29.🧺 Which of these is not needed for the card-on-a-glass trick? (a) a towel (b) a glass of water (c) a stiff postcard (d) a magnet
30. 30.True or false: a towel is needed for the card-on-a-glass trick. (a) False (b) True
31. 31.🧺 Do we need a magnet for the card-on-a-glass trick? (a) not needed (b) needed
32. 32.⚖️ 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 change it (b) we keep it the same (c) we measure it
33. 33.True or false: a sink or a bucket is needed for the card-on-a-glass trick. (a) False (b) True
34. 34.🥛 Does a vacuum cleaner work by air pressure or by magnetism? (a) air pressure (b) magnetism
35. 35.🥛 Which of these works by magnetism? (a) a vacuum cleaner (b) a medicine dropper (c) a compass needle (d) a drinking straw
36. 36.🥛 Does a bicycle pump work by air pressure or by magnetism? (a) magnetism (b) air pressure
37. 37.True or false: a battery cell is needed for the card-on-a-glass trick. (a) True (b) False
38. 38.True or false: a battery cell is not needed for the card-on-a-glass trick. (a) True (b) False
39. 39.🧺 Three of these are needed for the card-on-a-glass trick. Which one is NOT needed? (a) a glass of water (b) a mirror (c) a sink or a bucket (d) a towel
40. 40.⚖️ 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 measure it (c) we keep it the same

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