Air Pressure Experiment Worksheet

Science experiments lesson 6: Air pressure: the card on a glass · Set 919 · 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.True or false: yeast is not needed for the card-on-a-glass trick. (a) True (b) False
2. 2.🔍 Which is the odd one out? (a) a compass needle (b) a magnetic pin holder (c) a drinking straw (d) a magnetic chess set
3. 3.True or false: a mirror is needed for the card-on-a-glass trick. (a) True (b) False
4. 4.⚖️ 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 kept the same. (a) True (b) False
5. 5.True or false: a towel is not needed for the card-on-a-glass trick. (a) False (b) True
6. 6.⚖️ Fair test — does the card stay on with a full glass and with a half-full glass? True or false: the same card is kept the same. (a) False (b) True
7. 7.True or false: a sink or a bucket is not needed for the card-on-a-glass trick. (a) False (b) True
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) True (b) False
9. 9.🥛 Does a vacuum cleaner work by air pressure or by magnetism? (a) magnetism (b) air pressure
10. 10.🔍 Which is the odd one out? (a) a drinking straw (b) a medicine dropper (c) a suction hook (d) a fridge magnet
11. 11.⚖️ 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) whether the card stays (b) the same card (c) how full the glass is
12. 12.🧺 Three of these are needed for the card-on-a-glass trick. Which one is NOT needed? (a) a glass of water (b) a stiff postcard (c) a balloon (d) a sink or a bucket
13. 13.🧺 Do we need a mirror for the card-on-a-glass trick? (a) needed (b) not needed
14. 14.🛟 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 magnetic (d) it is hotter
15. 15.⚖️ 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) True (b) False
16. 16.🥛 Which of these works by air pressure? (a) a magnetic chess set (b) a fridge magnet (c) a medicine dropper (d) a compass needle
17. 17.True or false: a vacuum cleaner works by air pressure. (a) False (b) True
18. 18.⚖️ 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
19. 19.🔍 Which is the odd one out? (a) a fridge magnet (b) a compass needle (c) a magnetic chess set (d) a medicine dropper
20. 20.True or false: a drinking straw works by air pressure. (a) False (b) True
21. 21.🧺 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 magnet (d) a stiff postcard
22. 22.True or false: a vacuum cleaner works by magnetism. (a) True (b) False
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.🔍 You turn the full glass upside down, holding the card, then let go of the card. What happens? (a) the water turns to ice (b) the glass breaks (c) the card flies away (d) the card stays on
25. 25.🥛 Does a fridge magnet work by air pressure or by magnetism? (a) air pressure (b) magnetism
26. 26.⚖️ 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 measure it (b) we keep it the same (c) we change it
27. 27.🔍 Which is the odd one out? (a) a vacuum cleaner (b) a medicine dropper (c) a suction hook (d) a magnetic chess set
28. 28.🧺 Do we need a sink or a bucket for the card-on-a-glass trick? (a) not needed (b) needed
29. 29.📘 Air presses on everything around us. What is this push called? (a) sunlight (b) friction (c) magnetism (d) air pressure
30. 30.⚖️ 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
31. 31.True or false: a magnetic chess set works by magnetism. (a) True (b) False
32. 32.🧺 Three of these are needed for the card-on-a-glass trick. Which one is NOT needed? (a) a battery cell (b) a glass of water (c) a towel (d) a sink or a bucket
33. 33.🥛 Which of these works by magnetism? (a) a vacuum cleaner (b) a medicine dropper (c) a suction hook (d) a magnetic pin holder
34. 34.⚖️ 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
35. 35.⚖️ 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
36. 36.True or false: yeast is needed for the card-on-a-glass trick. (a) True (b) False
37. 37.🧺 Which of these is needed for the card-on-a-glass trick? (a) yeast (b) a glass of water (c) turmeric powder (d) a magnet
38. 38.🧺 Do we need a glass of water for the card-on-a-glass trick? (a) needed (b) not needed
39. 39.True or false: turmeric powder is needed for the card-on-a-glass trick. (a) True (b) False
40. 40.🧺 Which of these is needed for the card-on-a-glass trick? (a) a mirror (b) a battery cell (c) a balloon (d) a stiff postcard

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