Air Pressure Experiment Worksheet

Science experiments lesson 6: Air pressure: the card on a glass · Set 893 · 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: how full the glass is is kept the same. (a) True (b) False
2. 2.🧺 Which of these is not needed for the card-on-a-glass trick? (a) yeast (b) a glass of water (c) a towel (d) a sink or a bucket
3. 3.⚖️ 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 way we turn it (c) the same card (d) whether the card stays
4. 4.🧺 Which of these is needed for the card-on-a-glass trick? (a) a balloon (b) a glass of water (c) a battery cell (d) a magnet
5. 5.🔮 Predict: you blow up a balloon. What fills it? (a) air (b) water (c) sand (d) smoke
6. 6.🧺 Three of these are needed for the card-on-a-glass trick. Which one is NOT needed? (a) a magnet (b) a stiff postcard (c) a sink or a bucket (d) a glass of water
7. 7.🧺 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 glass of water (c) a stiff postcard (d) a balloon
8. 8.True or false: yeast is not needed for the card-on-a-glass trick. (a) False (b) True
9. 9.🥤 Why does juice go up a drinking straw when you sip? (a) air pushes it up (b) the straw is hot (c) the straw is magnetic (d) juice likes plastic
10. 10.🔍 You turn the full glass upside down, holding the card, then let go of the card. What happens? (a) the card flies away (b) the glass breaks (c) the water turns to ice (d) the card stays on
11. 11.🧺 Do we need a towel for the card-on-a-glass trick? (a) not needed (b) needed
12. 12.🛟 Why is a plastic cup safer than a glass for small children here? (a) it is heavier (b) it is magnetic (c) it is hotter (d) it will not break
13. 13.🔮 Why do we try the card trick over a sink or a bucket? (a) to cool the glass (b) to grow plants (c) to catch any spills (d) to make it rain
14. 14.🧺 Which of these is not needed for the card-on-a-glass trick? (a) a sink or a bucket (b) a towel (c) a glass of water (d) a magnet
15. 15.🥛 Does a medicine dropper work by air pressure or by magnetism? (a) magnetism (b) air pressure
16. 16.🧺 Three of these are needed for the card-on-a-glass trick. Which one is NOT needed? (a) turmeric powder (b) a stiff postcard (c) a towel (d) a glass of water
17. 17.True or false: a magnetic pin holder works by magnetism. (a) False (b) True
18. 18.True or false: a sink or a bucket is not needed for the card-on-a-glass trick. (a) False (b) True
19. 19.🧺 Do we need turmeric powder for the card-on-a-glass trick? (a) needed (b) not needed
20. 20.True or false: a magnetic pin holder works by air pressure. (a) True (b) False
21. 21.🛟 Where should you do the card-and-glass trick? (a) over a laptop (b) near a plug point (c) on a bed (d) over a sink or bucket
22. 22.🧺 Do we need a glass of water for the card-on-a-glass trick? (a) needed (b) not needed
23. 23.🧺 Three of these are needed for the card-on-a-glass trick. Which one is NOT needed? (a) a stiff postcard (b) a battery cell (c) a towel (d) a sink or a bucket
24. 24.🧺 Which of these is not needed for the card-on-a-glass trick? (a) turmeric powder (b) a towel (c) a glass of water (d) a stiff postcard
25. 25.🥛 Which of these works by air pressure? (a) a fridge magnet (b) a magnetic pin holder (c) a magnetic chess set (d) a drinking straw
26. 26.🥛 Which of these works by air pressure? (a) a fridge magnet (b) a magnetic chess set (c) a vacuum cleaner (d) a compass needle
27. 27.⚖️ 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 change it (b) we keep it the same (c) we measure it
28. 28.🧺 Do we need yeast 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 vacuum cleaner (c) a magnetic chess set (d) a compass needle
30. 30.🔮 Predict: you squeeze an empty plastic bottle with its cap screwed on tight. Why is it hard? (a) water is hiding there (b) the cap is sticky (c) the bottle is magnetic (d) air inside pushes back
31. 31.🧺 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 glass of water (c) yeast (d) a towel
32. 32.🥛 Does a fridge magnet work by air pressure or by magnetism? (a) air pressure (b) magnetism
33. 33.True or false: a bicycle pump works by magnetism. (a) False (b) True
34. 34.🥛 Does a bicycle pump work by air pressure or by magnetism? (a) magnetism (b) air pressure
35. 35.🔍 Which is the odd one out? (a) a fridge magnet (b) a medicine dropper (c) a compass needle (d) a magnetic chess set
36. 36.🔍 Which is the odd one out? (a) a drinking straw (b) a bicycle pump (c) a vacuum cleaner (d) a fridge magnet
37. 37.🧺 Do we need a stiff postcard for the card-on-a-glass trick? (a) needed (b) not needed
38. 38.🥛 Which of these works by magnetism? (a) a fridge magnet (b) a medicine dropper (c) a bicycle pump (d) a vacuum cleaner
39. 39.⚖️ 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
40. 40.🧺 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 sink or a bucket (d) a mirror

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