Air Pressure Experiment Worksheet

Science experiments lesson 6: Air pressure: the card on a glass · Set 458 · 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 medicine dropper works by magnetism. (a) True (b) False
2. 2.🥛 Which of these works by magnetism? (a) a bicycle pump (b) a vacuum cleaner (c) a drinking straw (d) a magnetic pin holder
3. 3.🧺 Which of these is needed for the card-on-a-glass trick? (a) a battery cell (b) turmeric powder (c) a glass of water (d) a balloon
4. 4.🧺 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 glass of water (d) a sink or a bucket
5. 5.🥛 Does a medicine dropper work by air pressure or by magnetism? (a) air pressure (b) magnetism
6. 6.🧺 Which of these is not needed for the card-on-a-glass trick? (a) a towel (b) a sink or a bucket (c) a balloon (d) a stiff postcard
7. 7.⚖️ 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 change it (b) we measure it (c) we keep it the same
8. 8.⚖️ 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) how full the glass is (b) the way we turn it (c) the same card (d) whether the card stays
9. 9.⚖️ 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
10. 10.⚖️ 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 the one thing we change. (a) True (b) False
11. 11.True or false: a stiff postcard is needed for the card-on-a-glass trick. (a) False (b) True
12. 12.🧺 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) turmeric powder (d) a stiff postcard
13. 13.🧺 Three of these are needed for the card-on-a-glass trick. Which one is NOT needed? (a) a towel (b) a battery cell (c) a sink or a bucket (d) a glass of water
14. 14.True or false: a battery cell is not needed for the card-on-a-glass trick. (a) False (b) True
15. 15.🥤 Why does juice go up a drinking straw when you sip? (a) the straw is magnetic (b) air pushes it up (c) juice likes plastic (d) the straw is hot
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) how full the glass is (c) the same card
17. 17.True or false: a magnetic chess set works by air pressure. (a) False (b) True
18. 18.🧺 Do we need a stiff postcard for the card-on-a-glass trick? (a) not needed (b) needed
19. 19.🧺 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) yeast (d) a stiff postcard
20. 20.True or false: a medicine dropper works by air pressure. (a) False (b) True
21. 21.🔮 Predict: you squeeze an empty plastic bottle with its cap screwed on tight. Why is it hard? (a) the bottle is magnetic (b) the cap is sticky (c) water is hiding there (d) air inside pushes back
22. 22.🧺 Which of these is needed for the card-on-a-glass trick? (a) yeast (b) a towel (c) a battery cell (d) a magnet
23. 23.🥛 Which of these works by air pressure? (a) a compass needle (b) a magnetic pin holder (c) a magnetic chess set (d) a vacuum cleaner
24. 24.🥛 Which of these works by magnetism? (a) a magnetic chess set (b) a medicine dropper (c) a vacuum cleaner (d) a suction hook
25. 25.⚖️ Fair test — does the card stay on with a full glass and with a half-full glass? True or false: the same card is what we measure. (a) True (b) False
26. 26.🧺 Three of these are needed for the card-on-a-glass trick. Which one is NOT needed? (a) a stiff postcard (b) a towel (c) a mirror (d) a glass of water
27. 27.⚖️ Fair test — does the card stay on with a full glass and with a half-full glass? True or false: the same card is the one thing we change. (a) True (b) False
28. 28.🔮 Predict: you blow up a balloon. What fills it? (a) smoke (b) sand (c) air (d) water
29. 29.🧺 Which of these is not needed for the card-on-a-glass trick? (a) a stiff postcard (b) a towel (c) a sink or a bucket (d) turmeric powder
30. 30.True or false: a mirror is needed for the card-on-a-glass trick. (a) True (b) False
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 way we turn it (b) whether the card stays (c) the same card (d) how full the glass is
32. 32.🛟 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 heavier (d) it is magnetic
33. 33.True or false: a vacuum cleaner works by air pressure. (a) True (b) False
34. 34.🔍 Which is the odd one out? (a) a vacuum cleaner (b) a drinking straw (c) a compass needle (d) a bicycle pump
35. 35.⚖️ 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
36. 36.🧺 Do we need a glass of water for the card-on-a-glass trick? (a) not needed (b) needed
37. 37.⚖️ 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
38. 38.⚖️ 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
39. 39.🧺 Which of these is not needed for the card-on-a-glass trick? (a) a glass of water (b) a sink or a bucket (c) a magnet (d) a towel
40. 40.🥛 Which of these works by air pressure? (a) a magnetic pin holder (b) a magnetic chess set (c) a drinking straw (d) a compass needle

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