Air Pressure Experiment Worksheet

Science experiments lesson 6: Air pressure: the card on a glass · Set 508 · 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 glass of water is needed for the card-on-a-glass trick. (a) False (b) True
2. 2.⚖️ 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 what we measure. (a) False (b) True
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 change it (b) we keep it the same (c) we measure it
4. 4.True or false: a magnetic chess set works by air pressure. (a) True (b) False
5. 5.🧺 Which of these is needed for the card-on-a-glass trick? (a) a magnet (b) a stiff postcard (c) a mirror (d) yeast
6. 6.🧺 Which of these is needed for the card-on-a-glass trick? (a) a mirror (b) a magnet (c) a balloon (d) a glass of water
7. 7.🧺 Do we need a sink or a bucket for the card-on-a-glass trick? (a) needed (b) not needed
8. 8.🧺 Do we need a glass of water for the card-on-a-glass trick? (a) not needed (b) needed
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.🧺 Three of these are needed for the card-on-a-glass trick. Which one is NOT needed? (a) a stiff postcard (b) a magnet (c) a glass of water (d) a sink or a bucket
11. 11.🛟 Why is a plastic cup safer than a glass for small children here? (a) it is magnetic (b) it is hotter (c) it will not break (d) it is heavier
12. 12.🔍 Which is the odd one out? (a) a drinking straw (b) a magnetic chess set (c) a bicycle pump (d) a suction hook
13. 13.🧺 Which of these is not needed for the card-on-a-glass trick? (a) a towel (b) yeast (c) a sink or a bucket (d) a stiff postcard
14. 14.🔍 Which is the odd one out? (a) a drinking straw (b) a compass needle (c) a vacuum cleaner (d) a suction hook
15. 15.🧺 Do we need a towel for the card-on-a-glass trick? (a) not needed (b) needed
16. 16.🧺 Three of these are needed for the card-on-a-glass trick. Which one is NOT needed? (a) a stiff postcard (b) a glass of water (c) turmeric powder (d) a sink or a bucket
17. 17.⚖️ 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 card (b) the way we turn it (c) how full the glass is (d) whether the card stays
18. 18.True or false: a magnetic pin holder works by magnetism. (a) True (b) False
19. 19.🔍 Which is the odd one out? (a) a magnetic chess set (b) a magnetic pin holder (c) a suction hook (d) a compass needle
20. 20.True or false: a towel is needed for the card-on-a-glass trick. (a) False (b) True
21. 21.🥛 Which of these works by magnetism? (a) a drinking straw (b) a magnetic chess set (c) a vacuum cleaner (d) a bicycle pump
22. 22.🥛 Does a magnetic pin holder work by air pressure or by magnetism? (a) magnetism (b) air pressure
23. 23.🛟 Where should you do the card-and-glass trick? (a) over a laptop (b) on a bed (c) near a plug point (d) over a sink or bucket
24. 24.🥛 Which of these works by air pressure? (a) a compass needle (b) a magnetic chess set (c) a fridge magnet (d) a drinking straw
25. 25.⚖️ 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
26. 26.🥛 Which of these works by magnetism? (a) a fridge magnet (b) a vacuum cleaner (c) a suction hook (d) a medicine dropper
27. 27.🥛 What holds the card up against the upside-down glass? (a) glue on the card (b) air pushing up (c) a magnet (d) the cold water
28. 28.🧺 Do we need a magnet for the card-on-a-glass trick? (a) needed (b) not needed
29. 29.⚖️ 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
30. 30.🔮 Why do we try the card trick over a sink or a bucket? (a) to catch any spills (b) to make it rain (c) to cool the glass (d) to grow plants
31. 31.True or false: a sink or a bucket is needed for the card-on-a-glass trick. (a) False (b) True
32. 32.🧺 Do we need a balloon for the card-on-a-glass trick? (a) not needed (b) needed
33. 33.🔍 Which is the odd one out? (a) a fridge magnet (b) a magnetic pin holder (c) a magnetic chess set (d) a bicycle pump
34. 34.True or false: a magnetic chess set works by magnetism. (a) True (b) False
35. 35.True or false: a glass of water is not needed for the card-on-a-glass trick. (a) False (b) True
36. 36.🧺 Three of these are needed for the card-on-a-glass trick. Which one is NOT needed? (a) a glass of water (b) a balloon (c) a stiff postcard (d) a towel
37. 37.🥛 Does a magnetic chess set work by air pressure or by magnetism? (a) magnetism (b) air pressure
38. 38.True or false: a bicycle pump works by magnetism. (a) True (b) False
39. 39.⚖️ Fair test — does the card stay on with a full glass and with a half-full glass? True or false: the same glass is the one thing we change. (a) True (b) False
40. 40.🥛 Which of these works by air pressure? (a) a magnetic chess set (b) a compass needle (c) a magnetic pin holder (d) a suction hook

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