Air Pressure Experiment Worksheet

Science experiments lesson 6: Air pressure: the card on a glass · Set 728 · 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 the one thing we change. (a) True (b) False
2. 2.🧺 Three of these are needed for the card-on-a-glass trick. Which one is NOT needed? (a) a glass of water (b) yeast (c) a stiff postcard (d) a sink or a bucket
3. 3.🥛 Does a suction hook work by air pressure or by magnetism? (a) magnetism (b) air pressure
4. 4.🔍 Which is the odd one out? (a) a compass needle (b) a drinking straw (c) a magnetic pin holder (d) a magnetic chess set
5. 5.🧺 Which of these is needed for the card-on-a-glass trick? (a) a magnet (b) turmeric powder (c) a balloon (d) a stiff postcard
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) a stiff postcard (d) a battery cell
7. 7.🧺 Do we need yeast for the card-on-a-glass trick? (a) needed (b) not needed
8. 8.True or false: a drinking straw works by magnetism. (a) False (b) True
9. 9.🧺 Do we need a glass of water for the card-on-a-glass trick? (a) needed (b) not needed
10. 10.🔍 Which is the odd one out? (a) a fridge magnet (b) a bicycle pump (c) a drinking straw (d) a medicine dropper
11. 11.🥛 Which of these works by magnetism? (a) a magnetic pin holder (b) a medicine dropper (c) a bicycle pump (d) a suction hook
12. 12.🔍 Which is the odd one out? (a) a magnetic pin holder (b) a vacuum cleaner (c) a fridge magnet (d) a compass needle
13. 13.⚖️ 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 way we turn it (d) the same glass
14. 14.🥛 Does a medicine dropper work by air pressure or by magnetism? (a) air pressure (b) magnetism
15. 15.🛟 Where should you do the card-and-glass trick? (a) near a plug point (b) over a sink or bucket (c) on a bed (d) over a laptop
16. 16.True or false: a magnetic pin holder works by magnetism. (a) True (b) False
17. 17.🥛 Which of these works by air pressure? (a) a compass needle (b) a magnetic pin holder (c) a bicycle pump (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: the same card is kept the same. (a) False (b) True
19. 19.⚖️ 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 measure it (c) we keep it the same
20. 20.🔮 Predict: you squeeze an empty plastic bottle with its cap screwed on tight. Why is it hard? (a) the cap is sticky (b) water is hiding there (c) the bottle is magnetic (d) air inside pushes back
21. 21.🧺 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
22. 22.🛟 Why is a plastic cup safer than a glass for small children here? (a) it is magnetic (b) it is hotter (c) it is heavier (d) it will not break
23. 23.🥛 Does a fridge magnet work by air pressure or by magnetism? (a) air pressure (b) magnetism
24. 24.⚖️ 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) the same glass (c) whether the card stays
25. 25.📘 Air presses on everything around us. What is this push called? (a) sunlight (b) air pressure (c) friction (d) magnetism
26. 26.🧺 Do we need a sink or a bucket for the card-on-a-glass trick? (a) needed (b) not needed
27. 27.🥛 Which of these works by air pressure? (a) a compass needle (b) a fridge magnet (c) a magnetic chess set (d) a suction hook
28. 28.🧺 Do we need turmeric powder for the card-on-a-glass trick? (a) not needed (b) needed
29. 29.🥛 Does a magnetic pin holder work by air pressure or by magnetism? (a) magnetism (b) air pressure
30. 30.🧺 Do we need a stiff postcard for the card-on-a-glass trick? (a) needed (b) not needed
31. 31.⚖️ 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 measure it (b) we change it (c) we keep it the same
32. 32.🧺 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 glass of water (d) a sink or a bucket
33. 33.🔍 Which is the odd one out? (a) a compass needle (b) a bicycle pump (c) a drinking straw (d) a vacuum cleaner
34. 34.True or false: a towel is needed for the card-on-a-glass trick. (a) True (b) False
35. 35.🧺 Which of these is needed for the card-on-a-glass trick? (a) a magnet (b) turmeric powder (c) a mirror (d) a towel
36. 36.⚖️ 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
37. 37.🔍 Which is the odd one out? (a) a compass needle (b) a medicine dropper (c) a magnetic pin holder (d) a fridge magnet
38. 38.⚖️ 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 keep it the same (b) we measure it (c) we change it
39. 39.True or false: a suction hook works by magnetism. (a) False (b) True
40. 40.⚖️ 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 keep it the same (c) we change it

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