Air Pressure Experiment Worksheet

Science experiments lesson 6: Air pressure: the card on a glass · Set 667 · 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? True or false: the same card is kept the same. (a) True (b) False
2. 2.True or false: a compass needle works by magnetism. (a) True (b) False
3. 3.🧺 Which of these is not needed for the card-on-a-glass trick? (a) a glass of water (b) a sink or a bucket (c) a towel (d) a battery cell
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? True or false: how full the glass is is the one thing we change. (a) True (b) False
6. 6.⚖️ 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
7. 7.🔍 Which is the odd one out? (a) a fridge magnet (b) a magnetic pin holder (c) a drinking straw (d) a compass needle
8. 8.🥛 Does a medicine dropper work by air pressure or by magnetism? (a) magnetism (b) air pressure
9. 9.True or false: a stiff postcard is not needed for the card-on-a-glass trick. (a) True (b) False
10. 10.🥛 Which of these works by air pressure? (a) a compass needle (b) a fridge magnet (c) a bicycle pump (d) a magnetic pin holder
11. 11.🔮 Predict: you squeeze an empty plastic bottle with its cap screwed on tight. Why is it hard? (a) the bottle is magnetic (b) the cap is sticky (c) water is hiding there (d) air inside pushes back
12. 12.⚖️ 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
13. 13.⚖️ 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
14. 14.🧺 Do we need a balloon for the card-on-a-glass trick? (a) needed (b) not needed
15. 15.🧺 Three of these are needed for the card-on-a-glass trick. Which one is NOT needed? (a) a stiff postcard (b) a sink or a bucket (c) a battery cell (d) a towel
16. 16.True or false: a magnet is not needed for the card-on-a-glass trick. (a) True (b) False
17. 17.🥛 Does a fridge magnet work by air pressure or by magnetism? (a) air pressure (b) magnetism
18. 18.True or false: a towel is not needed for the card-on-a-glass trick. (a) False (b) True
19. 19.True or false: a suction hook works by air pressure. (a) False (b) True
20. 20.🥛 Which of these works by air pressure? (a) a magnetic pin holder (b) a medicine dropper (c) a compass needle (d) a fridge magnet
21. 21.⚖️ 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) whether the card stays (b) the same glass (c) the same card (d) how full the glass is
22. 22.🔍 Which is the odd one out? (a) a suction hook (b) a magnetic pin holder (c) a compass needle (d) a fridge magnet
23. 23.🧺 Do we need a magnet for the card-on-a-glass trick? (a) not needed (b) needed
24. 24.🧺 Which of these is needed for the card-on-a-glass trick? (a) a balloon (b) a towel (c) a battery cell (d) a magnet
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) the same glass (b) the same card (c) how full the glass is (d) whether the card stays
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) False (b) True
27. 27.True or false: a medicine dropper works by air pressure. (a) True (b) False
28. 28.🧺 Which of these is not needed for the card-on-a-glass trick? (a) a towel (b) a sink or a bucket (c) a stiff postcard (d) a balloon
29. 29.🥛 Does a suction hook work by air pressure or by magnetism? (a) air pressure (b) magnetism
30. 30.🧺 Do we need a glass of water for the card-on-a-glass trick? (a) not needed (b) needed
31. 31.True or false: a drinking straw works by air pressure. (a) True (b) False
32. 32.🧺 Do we need turmeric powder for the card-on-a-glass trick? (a) not needed (b) needed
33. 33.True or false: a glass of water is not needed for the card-on-a-glass trick. (a) True (b) False
34. 34.🔍 Which is the odd one out? (a) a drinking straw (b) a bicycle pump (c) a suction hook (d) a magnetic pin holder
35. 35.🧺 Three of these are needed for the card-on-a-glass trick. Which one is NOT needed? (a) a magnet (b) a glass of water (c) a sink or a bucket (d) a stiff postcard
36. 36.🛟 Where should you do the card-and-glass trick? (a) over a sink or bucket (b) on a bed (c) over a laptop (d) near a plug point
37. 37.🥛 What holds the card up against the upside-down glass? (a) air pushing up (b) the cold water (c) glue on the card (d) a magnet
38. 38.True or false: turmeric powder is needed for the card-on-a-glass trick. (a) False (b) True
39. 39.⚖️ 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
40. 40.🧺 Three of these are needed for the card-on-a-glass trick. Which one is NOT needed? (a) a stiff postcard (b) a towel (c) a glass of water (d) turmeric powder

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