Air Pressure Experiment Worksheet

Science experiments lesson 6: Air pressure: the card on a glass · Set 246 · 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.True or false: a drinking straw works by air pressure. (a) True (b) False
2. 2.⚖️ 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
3. 3.🔍 Which is the odd one out? (a) a compass needle (b) a magnetic chess set (c) a bicycle pump (d) a magnetic pin holder
4. 4.⚖️ 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 card (b) the way we turn it (c) how full the glass is (d) the same glass
5. 5.🛟 Why is a plastic cup safer than a glass for small children here? (a) it is hotter (b) it will not break (c) it is magnetic (d) it is heavier
6. 6.🥛 Which of these works by magnetism? (a) a vacuum cleaner (b) a magnetic pin holder (c) a suction hook (d) a medicine dropper
7. 7.⚖️ 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) how full the glass is (c) whether the card stays (d) the same glass
8. 8.🥛 Which of these works by magnetism? (a) a suction hook (b) a magnetic chess set (c) a drinking straw (d) a medicine dropper
9. 9.🧺 Do we need a stiff postcard for the card-on-a-glass trick? (a) not needed (b) needed
10. 10.🥛 Which of these works by magnetism? (a) a suction hook (b) a compass needle (c) a drinking straw (d) a medicine dropper
11. 11.⚖️ 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
12. 12.🥛 Which of these works by magnetism? (a) a bicycle pump (b) a drinking straw (c) a fridge magnet (d) a suction hook
13. 13.🧺 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 stiff postcard (d) a battery cell
14. 14.🧺 Which of these is needed for the card-on-a-glass trick? (a) yeast (b) a mirror (c) a towel (d) turmeric powder
15. 15.True or false: a mirror is not needed for the card-on-a-glass trick. (a) True (b) False
16. 16.🔮 Predict: you blow up a balloon. What fills it? (a) air (b) water (c) smoke (d) sand
17. 17.True or false: a magnet is needed for the card-on-a-glass trick. (a) False (b) True
18. 18.⚖️ 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
19. 19.📘 Air presses on everything around us. What is this push called? (a) friction (b) air pressure (c) sunlight (d) magnetism
20. 20.🧺 Which of these is not needed for the card-on-a-glass trick? (a) a towel (b) yeast (c) a glass of water (d) a sink or a bucket
21. 21.🥛 Which of these works by air pressure? (a) a suction hook (b) a magnetic chess set (c) a compass needle (d) a magnetic pin holder
22. 22.True or false: a magnetic pin holder works by magnetism. (a) False (b) True
23. 23.🧺 Three of these are needed for the card-on-a-glass trick. Which one is NOT needed? (a) a glass of water (b) a balloon (c) a towel (d) a sink or a bucket
24. 24.⚖️ 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 measure it (b) we keep it the same (c) we change it
25. 25.True or false: a sink or a bucket is needed for the card-on-a-glass trick. (a) True (b) False
26. 26.🥛 Does a bicycle pump work by air pressure or by magnetism? (a) magnetism (b) air pressure
27. 27.True or false: a glass of water is not needed for the card-on-a-glass trick. (a) False (b) True
28. 28.🧺 Do we need a mirror for the card-on-a-glass trick? (a) needed (b) not needed
29. 29.🧺 Which of these is needed for the card-on-a-glass trick? (a) turmeric powder (b) a glass of water (c) a balloon (d) a battery cell
30. 30.🧺 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) turmeric powder
31. 31.🔍 Which is the odd one out? (a) a fridge magnet (b) a magnetic chess set (c) a compass needle (d) a suction hook
32. 32.True or false: a sink or a bucket is not needed for the card-on-a-glass trick. (a) False (b) True
33. 33.⚖️ 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
34. 34.🧺 Three of these are needed for the card-on-a-glass trick. Which one is NOT needed? (a) a glass of water (b) a sink or a bucket (c) a stiff postcard (d) a mirror
35. 35.🔍 Which is the odd one out? (a) a medicine dropper (b) a vacuum cleaner (c) a drinking straw (d) a magnetic chess set
36. 36.🧺 Which of these is needed for the card-on-a-glass trick? (a) a battery cell (b) turmeric powder (c) a sink or a bucket (d) a mirror
37. 37.True or false: turmeric powder is needed for the card-on-a-glass trick. (a) False (b) True
38. 38.⚖️ 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
39. 39.🥛 Does a vacuum cleaner work by air pressure or by magnetism? (a) air pressure (b) magnetism
40. 40.🧺 Do we need yeast for the card-on-a-glass trick? (a) needed (b) not needed

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