Air Pressure Experiment Worksheet

Science experiments lesson 6: Air pressure: the card on a glass · Set 279 · 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 change it (b) we keep it the same (c) we measure it
2. 2.⚖️ 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
3. 3.📘 Air presses on everything around us. What is this push called? (a) sunlight (b) air pressure (c) magnetism (d) friction
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) how full the glass is (b) the same glass (c) whether the card stays
5. 5.🥛 Does a suction hook work by air pressure or by magnetism? (a) air pressure (b) magnetism
6. 6.🔍 You turn the full glass upside down, holding the card, then let go of the card. What happens? (a) the glass breaks (b) the card stays on (c) the water turns to ice (d) the card flies away
7. 7.🧺 Which of these is needed for the card-on-a-glass trick? (a) yeast (b) turmeric powder (c) a stiff postcard (d) a balloon
8. 8.🥛 Does a bicycle pump work by air pressure or by magnetism? (a) magnetism (b) air pressure
9. 9.🔍 Which is the odd one out? (a) a drinking straw (b) a vacuum cleaner (c) a suction hook (d) a magnetic pin holder
10. 10.🧺 Which of these is needed for the card-on-a-glass trick? (a) a magnet (b) yeast (c) a sink or a bucket (d) turmeric powder
11. 11.True or false: a sink or a bucket is not needed for the card-on-a-glass trick. (a) False (b) True
12. 12.⚖️ 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) whether the card stays (c) the way we turn it (d) how full the glass is
13. 13.🔮 Why do we try the card trick over a sink or a bucket? (a) to make it rain (b) to catch any spills (c) to cool the glass (d) to grow plants
14. 14.True or false: a glass of water is not needed for the card-on-a-glass trick. (a) False (b) True
15. 15.⚖️ 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 way we turn it (b) the same card (c) whether the card stays (d) how full the glass is
16. 16.🧺 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 mirror (d) a towel
17. 17.🥛 Does a magnetic chess set work by air pressure or by magnetism? (a) air pressure (b) magnetism
18. 18.⚖️ 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 keep it the same (b) we change it (c) we measure it
19. 19.⚖️ 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
20. 20.🧺 Do we need a balloon for the card-on-a-glass trick? (a) not needed (b) needed
21. 21.🔍 Which is the odd one out? (a) a drinking straw (b) a medicine dropper (c) a magnetic chess set (d) a suction hook
22. 22.🧺 Three of these are needed for the card-on-a-glass trick. Which one is NOT needed? (a) a battery cell (b) a sink or a bucket (c) a glass of water (d) a stiff postcard
23. 23.🧺 Do we need a battery cell for the card-on-a-glass trick? (a) not needed (b) needed
24. 24.🔍 Which is the odd one out? (a) a fridge magnet (b) a bicycle pump (c) a vacuum cleaner (d) a medicine dropper
25. 25.True or false: a balloon is not needed for the card-on-a-glass trick. (a) False (b) True
26. 26.🛟 Why is a plastic cup safer than a glass for small children here? (a) it is magnetic (b) it is heavier (c) it is hotter (d) it will not break
27. 27.🥛 Which of these works by magnetism? (a) a fridge magnet (b) a drinking straw (c) a bicycle pump (d) a medicine dropper
28. 28.🥛 Does a medicine dropper work by air pressure or by magnetism? (a) magnetism (b) air pressure
29. 29.🔍 Which is the odd one out? (a) a magnetic chess set (b) a magnetic pin holder (c) a compass needle (d) a vacuum cleaner
30. 30.🥛 Does a magnetic pin holder work by air pressure or by magnetism? (a) air pressure (b) magnetism
31. 31.🧺 Which of these is not needed for the card-on-a-glass trick? (a) a glass of water (b) a stiff postcard (c) a battery cell (d) a sink or a bucket
32. 32.True or false: a magnet is needed for the card-on-a-glass trick. (a) True (b) False
33. 33.🛟 Where should you do the card-and-glass trick? (a) over a sink or bucket (b) near a plug point (c) on a bed (d) over a laptop
34. 34.True or false: a towel is not needed for the card-on-a-glass trick. (a) True (b) False
35. 35.True or false: a mirror is not needed for the card-on-a-glass trick. (a) False (b) True
36. 36.🧺 Do we need a glass of water for the card-on-a-glass trick? (a) needed (b) not needed
37. 37.⚖️ 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 change it (c) we keep it the same
38. 38.🔍 Which is the odd one out? (a) a fridge magnet (b) a compass needle (c) a magnetic pin holder (d) a suction hook
39. 39.🧺 Do we need a sink or a bucket for the card-on-a-glass trick? (a) not needed (b) needed
40. 40.🧺 Do we need a mirror for the card-on-a-glass trick? (a) not needed (b) needed

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