Air Pressure Experiment Worksheet

Science experiments lesson 6: Air pressure: the card on a glass · Set 262 · 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.🥛 Does a drinking straw work by air pressure or by magnetism? (a) magnetism (b) air pressure
2. 2.🥛 Does a vacuum cleaner work by air pressure or by magnetism? (a) air pressure (b) magnetism
3. 3.True or false: a vacuum cleaner works by air pressure. (a) True (b) False
4. 4.🛟 Why is a plastic cup safer than a glass for small children here? (a) it is heavier (b) it will not break (c) it is magnetic (d) it is hotter
5. 5.🔍 Which is the odd one out? (a) a compass needle (b) a drinking straw (c) a bicycle pump (d) a suction hook
6. 6.🧺 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) yeast (d) a stiff postcard
7. 7.True or false: a magnetic chess set works by magnetism. (a) False (b) True
8. 8.True or false: a battery cell is needed for the card-on-a-glass trick. (a) False (b) True
9. 9.🔍 Which is the odd one out? (a) a bicycle pump (b) a fridge magnet (c) a magnetic pin holder (d) a magnetic chess set
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 change it (c) we keep it the same
11. 11.📘 Air presses on everything around us. What is this push called? (a) air pressure (b) friction (c) sunlight (d) magnetism
12. 12.⚖️ 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 way we turn it (c) how full the glass is
13. 13.⚖️ 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
14. 14.🥛 Which of these works by magnetism? (a) a magnetic chess set (b) a medicine dropper (c) a drinking straw (d) a bicycle pump
15. 15.🥛 What holds the card up against the upside-down glass? (a) air pushing up (b) a magnet (c) glue on the card (d) the cold water
16. 16.🥛 Does a fridge magnet work by air pressure or by magnetism? (a) magnetism (b) air pressure
17. 17.⚖️ 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
18. 18.🥛 Which of these works by air pressure? (a) a compass needle (b) a magnetic pin holder (c) a vacuum cleaner (d) a magnetic chess set
19. 19.True or false: a glass of water is not needed for the card-on-a-glass trick. (a) True (b) False
20. 20.🧺 Three of these are needed for the card-on-a-glass trick. Which one is NOT needed? (a) a towel (b) a glass of water (c) a stiff postcard (d) a magnet
21. 21.🧺 Which of these is needed for the card-on-a-glass trick? (a) a magnet (b) a balloon (c) a mirror (d) a stiff postcard
22. 22.🔮 Predict: you squeeze an empty plastic bottle with its cap screwed on tight. Why is it hard? (a) the cap is sticky (b) air inside pushes back (c) water is hiding there (d) the bottle is magnetic
23. 23.True or false: a bicycle pump works by air pressure. (a) False (b) True
24. 24.🥛 Does a compass needle work by air pressure or by magnetism? (a) air pressure (b) magnetism
25. 25.⚖️ 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 way we turn it (c) how full the glass is (d) the same glass
26. 26.🔍 Which is the odd one out? (a) a magnetic pin holder (b) a medicine dropper (c) a fridge magnet (d) a compass needle
27. 27.🔮 Predict: you blow up a balloon. What fills it? (a) water (b) smoke (c) sand (d) air
28. 28.⚖️ 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
29. 29.🧺 Do we need a magnet for the card-on-a-glass trick? (a) not needed (b) needed
30. 30.🥛 Does a magnetic chess set work by air pressure or by magnetism? (a) air pressure (b) magnetism
31. 31.🧺 Do we need a mirror 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 battery cell (b) a stiff postcard (c) a glass of water (d) a sink or a bucket
33. 33.🧺 Do we need a sink or a bucket for the card-on-a-glass trick? (a) not needed (b) needed
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 glass”? (a) we measure it (b) we change it (c) we keep it the same
35. 35.True or false: a bicycle pump works by magnetism. (a) False (b) True
36. 36.True or false: a towel is needed for the card-on-a-glass trick. (a) False (b) True
37. 37.True or false: a fridge magnet works by air pressure. (a) True (b) False
38. 38.🔮 Why do we try the card trick over a sink or a bucket? (a) to cool the glass (b) to make it rain (c) to grow plants (d) to catch any spills
39. 39.🥛 Which of these works by air pressure? (a) a fridge magnet (b) a magnetic chess set (c) a compass needle (d) a bicycle pump
40. 40.True or false: a magnet is needed for the card-on-a-glass trick. (a) False (b) True

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