Air Pressure Experiment Worksheet

Science experiments lesson 6: Air pressure: the card on a glass · Set 301 · 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.🔍 Which is the odd one out? (a) a drinking straw (b) a vacuum cleaner (c) a magnetic pin holder (d) a suction hook
2. 2.🥛 Which of these works by magnetism? (a) a drinking straw (b) a vacuum cleaner (c) a compass needle (d) a medicine dropper
3. 3.🥛 Which of these works by air pressure? (a) a compass needle (b) a vacuum cleaner (c) a magnetic chess set (d) a magnetic pin holder
4. 4.True or false: a sink or a bucket is needed for the card-on-a-glass trick. (a) False (b) True
5. 5.⚖️ 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) the same glass (b) whether the card stays (c) how full the glass is
6. 6.🛟 Where should you do the card-and-glass trick? (a) over a sink or bucket (b) over a laptop (c) on a bed (d) near a plug point
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 same glass”? (a) we measure it (b) we change it (c) we keep it the same
8. 8.🔍 Which is the odd one out? (a) a bicycle pump (b) a compass needle (c) a medicine dropper (d) a drinking straw
9. 9.🔮 Why do we try the card trick over a sink or a bucket? (a) to grow plants (b) to make it rain (c) to catch any spills (d) to cool the glass
10. 10.⚖️ 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 what we measure. (a) True (b) False
11. 11.🔍 You turn the full glass upside down, holding the card, then let go of the card. What happens? (a) the water turns to ice (b) the glass breaks (c) the card stays on (d) the card flies away
12. 12.⚖️ 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 kept the same. (a) True (b) False
13. 13.🧺 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 towel
14. 14.True or false: a balloon is not needed for the card-on-a-glass trick. (a) True (b) False
15. 15.🧺 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 glass of water (d) a battery cell
16. 16.🧺 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 mirror (c) a glass of water (d) a stiff postcard
17. 17.🧺 Do we need a towel for the card-on-a-glass trick? (a) not needed (b) needed
18. 18.True or false: turmeric powder is needed for the card-on-a-glass trick. (a) False (b) True
19. 19.🧺 Do we need yeast for the card-on-a-glass trick? (a) not needed (b) needed
20. 20.🧺 Which of these is needed for the card-on-a-glass trick? (a) a magnet (b) a stiff postcard (c) a balloon (d) turmeric powder
21. 21.🛟 Why is a plastic cup safer than a glass for small children here? (a) it will not break (b) it is magnetic (c) it is heavier (d) it is hotter
22. 22.🧺 Which of these is needed for the card-on-a-glass trick? (a) yeast (b) a mirror (c) a sink or a bucket (d) a magnet
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 sink or a bucket (c) a stiff postcard (d) a balloon
24. 24.🧺 Do we need turmeric powder for the card-on-a-glass trick? (a) needed (b) not needed
25. 25.🥛 Which of these works by magnetism? (a) a medicine dropper (b) a suction hook (c) a bicycle pump (d) a magnetic chess set
26. 26.🧺 Which of these is not needed for the card-on-a-glass trick? (a) a glass of water (b) a towel (c) a mirror (d) a stiff postcard
27. 27.🔍 Which is the odd one out? (a) a fridge magnet (b) a medicine dropper (c) a suction hook (d) a drinking straw
28. 28.⚖️ 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
29. 29.🧺 Do we need a sink or a bucket for the card-on-a-glass trick? (a) needed (b) not needed
30. 30.🧺 Do we need a battery cell for the card-on-a-glass trick? (a) needed (b) not needed
31. 31.True or false: a drinking straw works by magnetism. (a) False (b) True
32. 32.🥛 Does a medicine dropper work by air pressure or by magnetism? (a) air pressure (b) magnetism
33. 33.True or false: a stiff postcard is needed for the card-on-a-glass trick. (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 stiff postcard (b) turmeric powder (c) a sink or a bucket (d) a glass of water
35. 35.🧺 Three of these are needed for the card-on-a-glass trick. Which one is NOT needed? (a) a towel (b) yeast (c) a sink or a bucket (d) a glass of water
36. 36.📘 Air presses on everything around us. What is this push called? (a) sunlight (b) magnetism (c) friction (d) air pressure
37. 37.🥛 Which of these works by magnetism? (a) a drinking straw (b) a magnetic pin holder (c) a bicycle pump (d) a suction hook
38. 38.🧺 Which of these is not needed for the card-on-a-glass trick? (a) a glass of water (b) a stiff postcard (c) a sink or a bucket (d) yeast
39. 39.🧺 Which of these is needed for the card-on-a-glass trick? (a) turmeric powder (b) a mirror (c) a battery cell (d) a glass of water
40. 40.🧺 Do we need a balloon for the card-on-a-glass trick? (a) needed (b) not needed

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