Air Pressure Experiment Worksheet

Science experiments lesson 6: Air pressure: the card on a glass · Set 248 · 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 fridge magnet works by air pressure. (a) False (b) True
2. 2.⚖️ 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 measure it (b) we keep it the same (c) we change it
3. 3.🥛 Which of these works by magnetism? (a) a drinking straw (b) a fridge magnet (c) a suction hook (d) a vacuum cleaner
4. 4.🧺 Do we need a battery cell for the card-on-a-glass trick? (a) not needed (b) needed
5. 5.🥛 Which of these works by magnetism? (a) a magnetic pin holder (b) a vacuum cleaner (c) a suction hook (d) a medicine dropper
6. 6.🥛 Does a medicine dropper work by air pressure or by magnetism? (a) magnetism (b) air pressure
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 keep it the same (b) we change it (c) we measure it
8. 8.🔮 Predict: you blow up a balloon. What fills it? (a) air (b) water (c) smoke (d) sand
9. 9.🧺 Do we need turmeric powder for the card-on-a-glass trick? (a) not needed (b) needed
10. 10.🧺 Three of these are needed for the card-on-a-glass trick. Which one is NOT needed? (a) a mirror (b) a stiff postcard (c) a glass of water (d) a towel
11. 11.📘 Air presses on everything around us. What is this push called? (a) friction (b) sunlight (c) magnetism (d) air pressure
12. 12.🔍 Which is the odd one out? (a) a bicycle pump (b) a fridge magnet (c) a drinking straw (d) a vacuum cleaner
13. 13.⚖️ 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) whether the card stays (d) how full the glass is
14. 14.True or false: a medicine dropper works by magnetism. (a) True (b) False
15. 15.🥛 Which of these works by air pressure? (a) a magnetic chess set (b) a compass needle (c) a fridge magnet (d) a bicycle pump
16. 16.🥛 Which of these works by air pressure? (a) a magnetic chess set (b) a vacuum cleaner (c) a fridge magnet (d) a compass needle
17. 17.🧺 Do we need a glass of water for the card-on-a-glass trick? (a) needed (b) not needed
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.True or false: a battery cell is not needed for the card-on-a-glass trick. (a) True (b) False
20. 20.🛟 Where should you do the card-and-glass trick? (a) near a plug point (b) over a sink or bucket (c) on a bed (d) over a laptop
21. 21.True or false: a drinking straw works by air pressure. (a) True (b) False
22. 22.🥛 Does a magnetic pin holder work by air pressure or by magnetism? (a) air pressure (b) magnetism
23. 23.⚖️ 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) whether the card stays (c) the same glass
24. 24.⚖️ 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 same glass (c) whether the card stays (d) the way we turn it
25. 25.🧺 Which of these is needed for the card-on-a-glass trick? (a) a glass of water (b) a balloon (c) yeast (d) turmeric powder
26. 26.True or false: a suction hook works by air pressure. (a) False (b) True
27. 27.🥛 Does a bicycle pump work by air pressure or by magnetism? (a) magnetism (b) air pressure
28. 28.🧺 Which of these is not needed for the card-on-a-glass trick? (a) a towel (b) a stiff postcard (c) turmeric powder (d) a sink or a bucket
29. 29.🥤 Why does juice go up a drinking straw when you sip? (a) the straw is magnetic (b) juice likes plastic (c) the straw is hot (d) air pushes it up
30. 30.True or false: turmeric powder is needed for the card-on-a-glass trick. (a) True (b) False
31. 31.🥛 Does a vacuum cleaner work by air pressure or by magnetism? (a) magnetism (b) air pressure
32. 32.🔮 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) air inside pushes back (d) the bottle is magnetic
33. 33.🧺 Which of these is needed for the card-on-a-glass trick? (a) a mirror (b) yeast (c) a balloon (d) a stiff postcard
34. 34.True or false: a towel is needed for the card-on-a-glass trick. (a) False (b) True
35. 35.⚖️ 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
36. 36.🥛 Does a compass needle work by air pressure or by magnetism? (a) air pressure (b) magnetism
37. 37.🧺 Three of these are needed for the card-on-a-glass trick. Which one is NOT needed? (a) a stiff postcard (b) a balloon (c) a towel (d) a sink or a bucket
38. 38.True or false: a compass needle works by air pressure. (a) False (b) True
39. 39.🥛 What holds the card up against the upside-down glass? (a) a magnet (b) air pushing up (c) the cold water (d) glue on the card
40. 40.🧺 Three of these are needed for the card-on-a-glass trick. Which one is NOT needed? (a) a stiff postcard (b) a sink or a bucket (c) yeast (d) a glass of water

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