Air Pressure Experiment Worksheet

Science experiments lesson 6: Air pressure: the card on a glass · Set 573 · 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 of these works by magnetism? (a) a suction hook (b) a bicycle pump (c) a drinking straw (d) a magnetic chess set
2. 2.True or false: a bicycle pump works by magnetism. (a) False (b) True
3. 3.🥛 Which of these works by air pressure? (a) a compass needle (b) a fridge magnet (c) a medicine dropper (d) a magnetic pin holder
4. 4.🔍 Which is the odd one out? (a) a medicine dropper (b) a vacuum cleaner (c) a suction hook (d) a compass needle
5. 5.🔍 Which is the odd one out? (a) a drinking straw (b) a magnetic pin holder (c) a vacuum cleaner (d) a bicycle pump
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 stiff postcard (c) a sink or a bucket (d) a magnet
7. 7.True or false: a stiff postcard is not needed for the card-on-a-glass trick. (a) False (b) True
8. 8.⚖️ 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
9. 9.🔮 Why do we try the card trick over a sink or a bucket? (a) to catch any spills (b) to cool the glass (c) to make it rain (d) to grow plants
10. 10.🧺 Do we need a stiff postcard for the card-on-a-glass trick? (a) not needed (b) needed
11. 11.True or false: yeast is not needed for the card-on-a-glass trick. (a) True (b) False
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) how full the glass is (c) the way we turn it
13. 13.🥛 Which of these works by air pressure? (a) a magnetic pin holder (b) a fridge magnet (c) a vacuum cleaner (d) a compass needle
14. 14.⚖️ 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 keep it the same (b) we change it (c) we measure it
15. 15.True or false: a drinking straw works by magnetism. (a) False (b) True
16. 16.🔮 Predict: you blow up a balloon. What fills it? (a) sand (b) water (c) smoke (d) air
17. 17.⚖️ 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 way we turn it (b) the same glass (c) how full the glass is (d) the same card
18. 18.🧺 Which of these is needed for the card-on-a-glass trick? (a) a battery cell (b) yeast (c) turmeric powder (d) a sink or a bucket
19. 19.🛟 Why is a plastic cup safer than a glass for small children here? (a) it is magnetic (b) it is hotter (c) it will not break (d) it is heavier
20. 20.⚖️ 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 the one thing we change. (a) False (b) True
21. 21.🔍 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 glass breaks (c) the card flies away (d) the water turns to ice
22. 22.True or false: turmeric powder is not needed for the card-on-a-glass trick. (a) False (b) True
23. 23.⚖️ 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 change it (c) we keep it the same
24. 24.🛟 Where should you do the card-and-glass trick? (a) on a bed (b) near a plug point (c) over a laptop (d) over a sink or bucket
25. 25.🧺 Three of these are needed for the card-on-a-glass trick. Which one is NOT needed? (a) a stiff postcard (b) yeast (c) a sink or a bucket (d) a towel
26. 26.🔮 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
27. 27.🧺 Do we need a balloon for the card-on-a-glass trick? (a) not needed (b) needed
28. 28.True or false: a sink or a bucket is needed for the card-on-a-glass trick. (a) False (b) True
29. 29.🧺 Which of these is needed for the card-on-a-glass trick? (a) yeast (b) a battery cell (c) a glass of water (d) turmeric powder
30. 30.⚖️ 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 keep it the same (b) we measure it (c) we change it
31. 31.🥛 What holds the card up against the upside-down glass? (a) a magnet (b) glue on the card (c) the cold water (d) air pushing up
32. 32.🧺 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 towel (c) a balloon (d) a glass of water
33. 33.True or false: a towel is needed for the card-on-a-glass trick. (a) True (b) False
34. 34.True or false: a suction hook works by air pressure. (a) True (b) False
35. 35.🥤 Why does juice go up a drinking straw when you sip? (a) the straw is magnetic (b) the straw is hot (c) juice likes plastic (d) air pushes it up
36. 36.🧺 Three of these are needed for the card-on-a-glass trick. Which one is NOT needed? (a) a mirror (b) a towel (c) a glass of water (d) a sink or a bucket
37. 37.🧺 Which of these is not needed for the card-on-a-glass trick? (a) a towel (b) a balloon (c) a sink or a bucket (d) a stiff postcard
38. 38.🥛 Which of these works by magnetism? (a) a fridge magnet (b) a suction hook (c) a medicine dropper (d) a vacuum cleaner
39. 39.🔍 Which is the odd one out? (a) a magnetic chess set (b) a compass needle (c) a drinking straw (d) a fridge magnet
40. 40.🥛 Does a vacuum cleaner work by air pressure or by magnetism? (a) magnetism (b) air pressure

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