Air Pressure Experiment Worksheet

Science experiments lesson 6: Air pressure: the card on a glass · Set 572 · 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? True or false: the same card is the one thing we change. (a) False (b) True
2. 2.🥛 Which of these works by air pressure? (a) a magnetic chess set (b) a vacuum cleaner (c) a compass needle (d) a fridge magnet
3. 3.⚖️ 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
4. 4.🔍 Which is the odd one out? (a) a compass needle (b) a bicycle pump (c) a suction hook (d) a vacuum cleaner
5. 5.🥛 Which of these works by magnetism? (a) a magnetic pin holder (b) a medicine dropper (c) a suction hook (d) a bicycle pump
6. 6.True or false: turmeric powder is not needed for the card-on-a-glass trick. (a) False (b) True
7. 7.🛟 Why is a plastic cup safer than a glass for small children here? (a) it will not break (b) it is heavier (c) it is magnetic (d) it is hotter
8. 8.🧺 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 battery cell
9. 9.🥛 What holds the card up against the upside-down glass? (a) the cold water (b) glue on the card (c) a magnet (d) air pushing up
10. 10.⚖️ 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 keep it the same (b) we change it (c) we measure it
11. 11.🔍 Which is the odd one out? (a) a drinking straw (b) a magnetic pin holder (c) a medicine dropper (d) a bicycle pump
12. 12.⚖️ 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) whether the card stays (c) the same glass (d) how full the glass is
13. 13.True or false: a balloon is needed for the card-on-a-glass trick. (a) True (b) False
14. 14.⚖️ 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) how full the glass is (c) the same glass (d) whether the card stays
15. 15.🔮 Why do we try the card trick over a sink or a bucket? (a) to grow plants (b) to cool the glass (c) to catch any spills (d) to make it rain
16. 16.🥛 Which of these works by magnetism? (a) a suction hook (b) a bicycle pump (c) a compass needle (d) a vacuum cleaner
17. 17.True or false: a glass of water is not needed for the card-on-a-glass trick. (a) True (b) False
18. 18.True or false: a vacuum cleaner works by air pressure. (a) False (b) True
19. 19.📘 Air presses on everything around us. What is this push called? (a) magnetism (b) air pressure (c) sunlight (d) friction
20. 20.🧺 Which of these is needed for the card-on-a-glass trick? (a) turmeric powder (b) a sink or a bucket (c) a battery cell (d) a balloon
21. 21.True or false: a bicycle pump works by magnetism. (a) True (b) False
22. 22.🧺 Do we need a mirror for the card-on-a-glass trick? (a) not needed (b) needed
23. 23.🔍 Which is the odd one out? (a) a compass needle (b) a magnetic chess set (c) a fridge magnet (d) a drinking straw
24. 24.True or false: a magnet is not needed for the card-on-a-glass trick. (a) False (b) True
25. 25.🧺 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 towel (d) a balloon
26. 26.🥛 Does a drinking straw work by air pressure or by magnetism? (a) magnetism (b) air pressure
27. 27.🔍 Which is the odd one out? (a) a magnetic pin holder (b) a fridge magnet (c) a medicine dropper (d) a magnetic chess set
28. 28.🛟 Where should you do the card-and-glass trick? (a) on a bed (b) over a laptop (c) near a plug point (d) over a sink or bucket
29. 29.🧺 Do we need a battery cell for the card-on-a-glass trick? (a) not needed (b) needed
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 towel (c) a sink or a bucket (d) yeast
31. 31.🧺 Do we need a balloon for the card-on-a-glass trick? (a) needed (b) not needed
32. 32.⚖️ 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) True (b) False
33. 33.🧺 Three of these are needed for the card-on-a-glass trick. Which one is NOT needed? (a) a towel (b) a mirror (c) a sink or a bucket (d) a stiff postcard
34. 34.🧺 Three of these are needed for the card-on-a-glass trick. Which one is NOT needed? (a) a magnet (b) a glass of water (c) a stiff postcard (d) a towel
35. 35.🧺 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 towel (d) turmeric powder
36. 36.🥛 Which of these works by magnetism? (a) a vacuum cleaner (b) a bicycle pump (c) a drinking straw (d) a fridge magnet
37. 37.🧺 Which of these is needed for the card-on-a-glass trick? (a) a magnet (b) a mirror (c) a battery cell (d) a towel
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) how full the glass is (c) the way we turn it
39. 39.🧺 Do we need a towel for the card-on-a-glass trick? (a) needed (b) not needed
40. 40.⚖️ 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

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