Air Pressure Experiment Worksheet

Science experiments lesson 6: Air pressure: the card on a glass · Set 48 · 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.🔍 Which is the odd one out? (a) a medicine dropper (b) a magnetic chess set (c) a magnetic pin holder (d) a fridge magnet
2. 2.⚖️ 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 way we turn it (b) whether the card stays (c) the same card (d) the same glass
3. 3.🛟 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
4. 4.⚖️ 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
5. 5.True or false: a mirror is needed for the card-on-a-glass trick. (a) False (b) True
6. 6.🔍 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 glass breaks (d) the water turns to ice
7. 7.True or false: yeast is needed for the card-on-a-glass trick. (a) True (b) False
8. 8.🔮 Predict: you blow up a balloon. What fills it? (a) sand (b) smoke (c) water (d) air
9. 9.🧺 Do we need a glass of water for the card-on-a-glass trick? (a) needed (b) not needed
10. 10.📘 Air presses on everything around us. What is this push called? (a) friction (b) sunlight (c) magnetism (d) air pressure
11. 11.True or false: a towel is not needed for the card-on-a-glass trick. (a) False (b) True
12. 12.🥤 Why does juice go up a drinking straw when you sip? (a) air pushes it up (b) the straw is hot (c) juice likes plastic (d) the straw is magnetic
13. 13.🥛 Which of these works by magnetism? (a) a drinking straw (b) a bicycle pump (c) a compass needle (d) a suction hook
14. 14.True or false: a magnetic pin holder works by magnetism. (a) False (b) True
15. 15.🥛 Does a drinking straw work by air pressure or by magnetism? (a) magnetism (b) air pressure
16. 16.⚖️ 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) False (b) True
17. 17.🥛 Does a magnetic pin holder work by air pressure or by magnetism? (a) air pressure (b) magnetism
18. 18.True or false: a magnetic pin holder works by air pressure. (a) True (b) False
19. 19.🥛 Which of these works by air pressure? (a) a compass needle (b) a magnetic chess set (c) a vacuum cleaner (d) a fridge magnet
20. 20.🔍 Which is the odd one out? (a) a fridge magnet (b) a vacuum cleaner (c) a bicycle pump (d) a medicine dropper
21. 21.True or false: a magnetic chess set works by air pressure. (a) True (b) False
22. 22.⚖️ 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 card (c) how full the glass is (d) the way we turn it
23. 23.🥛 Does a fridge magnet work by air pressure or by magnetism? (a) magnetism (b) air pressure
24. 24.🛟 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
25. 25.🧺 Three of these are needed for the card-on-a-glass trick. Which one is NOT needed? (a) a glass of water (b) a battery cell (c) a towel (d) a stiff postcard
26. 26.🔍 Which is the odd one out? (a) a vacuum cleaner (b) a drinking straw (c) a compass needle (d) a medicine dropper
27. 27.🥛 Which of these works by air pressure? (a) a suction hook (b) a magnetic chess set (c) a magnetic pin holder (d) a compass needle
28. 28.🧺 Do we need a magnet for the card-on-a-glass trick? (a) needed (b) not needed
29. 29.🔍 Which is the odd one out? (a) a fridge magnet (b) a magnetic pin holder (c) a magnetic chess set (d) a vacuum cleaner
30. 30.🔍 Which is the odd one out? (a) a fridge magnet (b) a magnetic pin holder (c) a compass needle (d) a drinking straw
31. 31.True or false: a bicycle pump works by magnetism. (a) False (b) True
32. 32.⚖️ 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) False (b) True
33. 33.🔍 Which is the odd one out? (a) a compass needle (b) a fridge magnet (c) a magnetic chess set (d) a bicycle pump
34. 34.🧺 Which of these is needed for the card-on-a-glass trick? (a) yeast (b) a glass of water (c) a balloon (d) a battery cell
35. 35.True or false: a battery cell is needed for the card-on-a-glass trick. (a) False (b) True
36. 36.True or false: a magnet is needed for the card-on-a-glass trick. (a) True (b) False
37. 37.🥛 Does a vacuum cleaner work by air pressure or by magnetism? (a) air pressure (b) magnetism
38. 38.⚖️ 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
39. 39.🥛 Does a magnetic chess set work by air pressure or by magnetism? (a) air pressure (b) magnetism
40. 40.⚖️ 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

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