Air Pressure Experiment Worksheet

Science experiments lesson 6: Air pressure: the card on a glass · Set 898 · 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.⚖️ 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 measure it (c) we change it
2. 2.🛟 Where should you do the card-and-glass trick? (a) near a plug point (b) over a laptop (c) on a bed (d) over a sink or bucket
3. 3.🥛 Does a medicine dropper work by air pressure or by magnetism? (a) air pressure (b) magnetism
4. 4.🥛 Does a vacuum cleaner work by air pressure or by magnetism? (a) magnetism (b) air pressure
5. 5.⚖️ 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
6. 6.🔮 Predict: you blow up a balloon. What fills it? (a) air (b) water (c) sand (d) smoke
7. 7.🥤 Why does juice go up a drinking straw when you sip? (a) the straw is hot (b) air pushes it up (c) juice likes plastic (d) the straw is magnetic
8. 8.🧺 Do we need a battery cell for the card-on-a-glass trick? (a) needed (b) not needed
9. 9.🔍 Which is the odd one out? (a) a vacuum cleaner (b) a medicine dropper (c) a magnetic pin holder (d) a bicycle pump
10. 10.True or false: yeast is needed for the card-on-a-glass trick. (a) False (b) True
11. 11.🧺 Which of these is not needed for the card-on-a-glass trick? (a) a glass of water (b) a balloon (c) a sink or a bucket (d) a towel
12. 12.⚖️ 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) how full the glass is (d) whether the card stays
13. 13.True or false: a sink or a bucket is needed for the card-on-a-glass trick. (a) True (b) False
14. 14.⚖️ 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
15. 15.🥛 Does a suction hook work by air pressure or by magnetism? (a) magnetism (b) air pressure
16. 16.🥛 Does a drinking straw work by air pressure or by magnetism? (a) magnetism (b) air pressure
17. 17.True or false: a suction hook works by magnetism. (a) False (b) True
18. 18.🧺 Which of these is needed for the card-on-a-glass trick? (a) a magnet (b) a mirror (c) a sink or a bucket (d) yeast
19. 19.🧺 Do we need a sink or a bucket for the card-on-a-glass trick? (a) needed (b) not needed
20. 20.True or false: a battery cell is needed for the card-on-a-glass trick. (a) False (b) True
21. 21.⚖️ 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
22. 22.⚖️ 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 change it (b) we keep it the same (c) we measure it
23. 23.🔍 You turn the full glass upside down, holding the card, then let go of the card. What happens? (a) the card stays on (b) the card flies away (c) the water turns to ice (d) the glass breaks
24. 24.⚖️ Fair test — does the card stay on with a full glass and with a half-full glass? True or false: the same glass is kept the same. (a) True (b) False
25. 25.🧺 Do we need a magnet for the card-on-a-glass trick? (a) needed (b) not needed
26. 26.⚖️ Fair test — does the card stay on with a full glass and with a half-full glass? True or false: the same glass is the one thing we change. (a) True (b) False
27. 27.🔍 Which is the odd one out? (a) a fridge magnet (b) a suction hook (c) a magnetic chess set (d) a compass needle
28. 28.🧺 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 stiff postcard (d) a magnet
29. 29.⚖️ 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 what we measure. (a) False (b) True
30. 30.🧺 Three of these are needed for the card-on-a-glass trick. Which one is NOT needed? (a) a stiff postcard (b) a balloon (c) a towel (d) a glass of water
31. 31.🧺 Do we need a glass of water for the card-on-a-glass trick? (a) needed (b) not needed
32. 32.True or false: a fridge magnet works by air pressure. (a) False (b) True
33. 33.⚖️ 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 kept the same. (a) True (b) False
34. 34.📘 Air presses on everything around us. What is this push called? (a) sunlight (b) air pressure (c) magnetism (d) friction
35. 35.True or false: a medicine dropper works by magnetism. (a) True (b) False
36. 36.🧺 Which of these is needed for the card-on-a-glass trick? (a) a balloon (b) a towel (c) turmeric powder (d) a mirror
37. 37.🔮 Why do we try the card trick over a sink or a bucket? (a) to catch any spills (b) to grow plants (c) to make it rain (d) to cool the glass
38. 38.True or false: a suction hook works by air pressure. (a) True (b) False
39. 39.🥛 Does a compass needle work by air pressure or by magnetism? (a) air pressure (b) magnetism
40. 40.🧺 Which of these is needed for the card-on-a-glass trick? (a) turmeric powder (b) a mirror (c) a stiff postcard (d) a balloon

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