Air Pressure Experiment Worksheet

Science experiments lesson 6: Air pressure: the card on a glass · Set 11 · 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? What do we do with “whether the card stays”? (a) we keep it the same (b) we change it (c) we measure it
2. 2.True or false: a mirror is needed for the card-on-a-glass trick. (a) True (b) False
3. 3.True or false: a bicycle pump works by magnetism. (a) False (b) True
4. 4.⚖️ 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
5. 5.🛟 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
6. 6.True or false: a drinking straw works by air pressure. (a) False (b) True
7. 7.⚖️ 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
8. 8.🥛 Which of these works by air pressure? (a) a magnetic pin holder (b) a compass needle (c) a medicine dropper (d) a fridge magnet
9. 9.⚖️ 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
10. 10.🔮 Predict: you blow up a balloon. What fills it? (a) smoke (b) water (c) sand (d) air
11. 11.🧺 Three of these are needed for the card-on-a-glass trick. Which one is NOT needed? (a) a towel (b) a sink or a bucket (c) a magnet (d) a stiff postcard
12. 12.🔍 Which is the odd one out? (a) a magnetic pin holder (b) a vacuum cleaner (c) a fridge magnet (d) a magnetic chess set
13. 13.🔮 Why do we try the card trick over a sink or a bucket? (a) to grow plants (b) to make it rain (c) to cool the glass (d) to catch any spills
14. 14.🥛 Which of these works by magnetism? (a) a fridge magnet (b) a medicine dropper (c) a drinking straw (d) a suction hook
15. 15.🥛 Does a suction hook 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? Which of these is kept the same? (a) whether the card stays (b) the way we turn it (c) how full the glass is
17. 17.🧺 Do we need a battery cell for the card-on-a-glass trick? (a) not needed (b) needed
18. 18.⚖️ 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
19. 19.🧺 Which of these is needed for the card-on-a-glass trick? (a) yeast (b) a stiff postcard (c) turmeric powder (d) a balloon
20. 20.True or false: yeast is not needed for the card-on-a-glass trick. (a) False (b) True
21. 21.🥛 Does a drinking straw work by air pressure or by magnetism? (a) air pressure (b) magnetism
22. 22.⚖️ 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 keep it the same (b) we measure it (c) we change it
23. 23.True or false: a sink or a bucket is not needed for the card-on-a-glass trick. (a) True (b) False
24. 24.🔮 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) air inside pushes back (d) the bottle is magnetic
25. 25.⚖️ 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 measure it (b) we change it (c) we keep it the same
26. 26.🧺 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 battery cell (d) a stiff postcard
27. 27.True or false: a glass of water is needed for the card-on-a-glass trick. (a) True (b) False
28. 28.📘 Air presses on everything around us. What is this push called? (a) friction (b) magnetism (c) air pressure (d) sunlight
29. 29.🥛 Which of these works by magnetism? (a) a medicine dropper (b) a magnetic pin holder (c) a suction hook (d) a drinking straw
30. 30.🧺 Do we need a glass of water for the card-on-a-glass trick? (a) not needed (b) needed
31. 31.⚖️ 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 same glass (b) the same card (c) the way we turn it (d) how full the glass is
32. 32.True or false: a sink or a bucket is needed for the card-on-a-glass trick. (a) False (b) True
33. 33.🧺 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 glass of water
34. 34.🧺 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 stiff postcard (d) a sink or a bucket
35. 35.🧺 Do we need turmeric powder for the card-on-a-glass trick? (a) needed (b) not needed
36. 36.True or false: a suction hook works by magnetism. (a) False (b) True
37. 37.🔍 Which is the odd one out? (a) a suction hook (b) a compass needle (c) a vacuum cleaner (d) a medicine dropper
38. 38.🧺 Which of these is not needed for the card-on-a-glass trick? (a) a sink or a bucket (b) a glass of water (c) a towel (d) turmeric powder
39. 39.True or false: a vacuum cleaner works by magnetism. (a) False (b) True
40. 40.🧺 Do we need a stiff postcard for the card-on-a-glass trick? (a) not needed (b) needed

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