Air Pressure Experiment Worksheet

Science experiments lesson 6: Air pressure: the card on a glass · Set 371 · 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 is the odd one out? (a) a compass needle (b) a suction hook (c) a bicycle pump (d) a vacuum cleaner
2. 2.⚖️ 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 measure it (c) we keep it the same
3. 3.🛟 Why is a plastic cup safer than a glass for small children here? (a) it is hotter (b) it is magnetic (c) it is heavier (d) it will not break
4. 4.🧺 Which of these is not needed for the card-on-a-glass trick? (a) a towel (b) a mirror (c) a glass of water (d) a sink or a bucket
5. 5.True or false: a sink or a bucket is needed for the card-on-a-glass trick. (a) False (b) True
6. 6.🧺 Which of these is needed for the card-on-a-glass trick? (a) a mirror (b) yeast (c) turmeric powder (d) a sink or a bucket
7. 7.📘 Air presses on everything around us. What is this push called? (a) friction (b) air pressure (c) magnetism (d) sunlight
8. 8.⚖️ 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
9. 9.⚖️ 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 glass (b) the same card (c) whether the card stays (d) how full the glass is
10. 10.🥛 Does a magnetic pin holder work by air pressure or by magnetism? (a) magnetism (b) air pressure
11. 11.True or false: a suction hook works by magnetism. (a) False (b) True
12. 12.🧺 Which of these is not needed for the card-on-a-glass trick? (a) a sink or a bucket (b) a glass of water (c) yeast (d) a stiff postcard
13. 13.🛟 Where should you do the card-and-glass trick? (a) over a sink or bucket (b) near a plug point (c) over a laptop (d) on a bed
14. 14.True or false: a medicine dropper works by air pressure. (a) False (b) True
15. 15.⚖️ Fair test — does the card stay on with a full glass and with a half-full glass? What do we do with “the same card”? (a) we measure it (b) we change it (c) we keep it the same
16. 16.🧺 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 sink or a bucket (d) a magnet
17. 17.🥛 Which of these works by magnetism? (a) a bicycle pump (b) a medicine dropper (c) a vacuum cleaner (d) a fridge magnet
18. 18.⚖️ 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 the one thing we change. (a) True (b) False
19. 19.⚖️ 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 measure it (c) we keep it the same
20. 20.🔍 Which is the odd one out? (a) a fridge magnet (b) a medicine dropper (c) a magnetic chess set (d) a magnetic pin holder
21. 21.🥛 What holds the card up against the upside-down glass? (a) the cold water (b) a magnet (c) glue on the card (d) air pushing up
22. 22.🥛 Does a suction hook work by air pressure or by magnetism? (a) magnetism (b) air pressure
23. 23.⚖️ 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
24. 24.True or false: a suction hook works by air pressure. (a) False (b) True
25. 25.🧺 Do we need a stiff postcard for the card-on-a-glass trick? (a) not needed (b) needed
26. 26.⚖️ 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 card (b) whether the card stays (c) the same glass (d) the way we turn it
27. 27.🔮 Why do we try the card trick over a sink or a bucket? (a) to make it rain (b) to catch any spills (c) to cool the glass (d) to grow plants
28. 28.True or false: a magnet is not needed for the card-on-a-glass trick. (a) False (b) True
29. 29.🥛 Does a medicine dropper work by air pressure or by magnetism? (a) air pressure (b) magnetism
30. 30.🧺 Do we need a magnet for the card-on-a-glass trick? (a) needed (b) not needed
31. 31.🧺 Do we need yeast for the card-on-a-glass trick? (a) not needed (b) needed
32. 32.🧺 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 mirror (d) a stiff postcard
33. 33.True or false: a stiff postcard is not needed for the card-on-a-glass trick. (a) False (b) True
34. 34.True or false: a balloon is not needed for the card-on-a-glass trick. (a) False (b) True
35. 35.🥛 Does a bicycle pump work by air pressure or by magnetism? (a) magnetism (b) air pressure
36. 36.🔍 Which is the odd one out? (a) a vacuum cleaner (b) a suction hook (c) a medicine dropper (d) a magnetic pin holder
37. 37.True or false: a drinking straw works by magnetism. (a) True (b) False
38. 38.🧺 Which of these is needed for the card-on-a-glass trick? (a) yeast (b) a mirror (c) turmeric powder (d) a stiff postcard
39. 39.⚖️ 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
40. 40.🔍 Which is the odd one out? (a) a compass needle (b) a suction hook (c) a magnetic chess set (d) a fridge magnet

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