Air Pressure Experiment Worksheet

Science experiments lesson 6: Air pressure: the card on a glass · Set 881 · 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 glass is what we measure. (a) True (b) False
2. 2.📘 Air presses on everything around us. What is this push called? (a) sunlight (b) friction (c) air pressure (d) magnetism
3. 3.🛟 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
4. 4.⚖️ 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 the one thing we change. (a) True (b) False
5. 5.🔮 Why do we try the card trick over a sink or a bucket? (a) to grow plants (b) to catch any spills (c) to make it rain (d) to cool the glass
6. 6.True or false: a mirror is not needed for the card-on-a-glass trick. (a) True (b) False
7. 7.🧺 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 battery cell (d) a sink or a bucket
8. 8.⚖️ 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 the one thing we change. (a) False (b) True
9. 9.🥛 Which of these works by air pressure? (a) a magnetic pin holder (b) a fridge magnet (c) a vacuum cleaner (d) a magnetic chess set
10. 10.True or false: a mirror is needed for the card-on-a-glass trick. (a) True (b) False
11. 11.🧺 Three of these are needed for the card-on-a-glass trick. Which one is NOT needed? (a) yeast (b) a sink or a bucket (c) a towel (d) a stiff postcard
12. 12.🥛 Does a drinking straw work by air pressure or by magnetism? (a) magnetism (b) air pressure
13. 13.True or false: a battery cell is not needed for the card-on-a-glass trick. (a) True (b) False
14. 14.🥛 Which of these works by air pressure? (a) a fridge magnet (b) a drinking straw (c) a magnetic chess set (d) a compass needle
15. 15.True or false: a compass needle works by magnetism. (a) True (b) False
16. 16.🥛 What holds the card up against the upside-down glass? (a) the cold water (b) glue on the card (c) air pushing up (d) a magnet
17. 17.🧺 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 battery cell
18. 18.🔍 Which is the odd one out? (a) a suction hook (b) a vacuum cleaner (c) a medicine dropper (d) a magnetic chess set
19. 19.🧺 Three of these are needed for the card-on-a-glass trick. Which one is NOT needed? (a) a mirror (b) a towel (c) a glass of water (d) a sink or a bucket
20. 20.🧺 Do we need a towel for the card-on-a-glass trick? (a) not needed (b) needed
21. 21.🥛 Which of these works by air pressure? (a) a fridge magnet (b) a bicycle pump (c) a compass needle (d) a magnetic pin holder
22. 22.🥛 Does a bicycle pump work by air pressure or by magnetism? (a) air pressure (b) magnetism
23. 23.🧺 Which of these is not needed for the card-on-a-glass trick? (a) a sink or a bucket (b) a balloon (c) a towel (d) a glass of water
24. 24.🔍 Which is the odd one out? (a) a bicycle pump (b) a medicine dropper (c) a magnetic pin holder (d) a suction hook
25. 25.True or false: a bicycle pump works by magnetism. (a) True (b) False
26. 26.🥛 Does a fridge magnet work by air pressure or by magnetism? (a) magnetism (b) air pressure
27. 27.True or false: a battery cell is needed for the card-on-a-glass trick. (a) True (b) False
28. 28.True or false: yeast is needed for the card-on-a-glass trick. (a) True (b) False
29. 29.🧺 Which of these is needed for the card-on-a-glass trick? (a) a towel (b) a battery cell (c) turmeric powder (d) a mirror
30. 30.🧺 Which of these is not needed for the card-on-a-glass trick? (a) a stiff postcard (b) a glass of water (c) a sink or a bucket (d) a battery cell
31. 31.🛟 Where should you do the card-and-glass trick? (a) on a bed (b) near a plug point (c) over a sink or bucket (d) over a laptop
32. 32.⚖️ 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) False (b) True
33. 33.True or false: a glass of water is needed for the card-on-a-glass trick. (a) False (b) True
34. 34.⚖️ 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
35. 35.🧺 Do we need yeast for the card-on-a-glass trick? (a) needed (b) not needed
36. 36.🔍 Which is the odd one out? (a) a magnetic pin holder (b) a fridge magnet (c) a medicine dropper (d) a compass needle
37. 37.🥛 Which of these works by magnetism? (a) a drinking straw (b) a vacuum cleaner (c) a bicycle pump (d) a compass needle
38. 38.🧺 Do we need a mirror for the card-on-a-glass trick? (a) needed (b) not needed
39. 39.🧺 Three of these are needed for the card-on-a-glass trick. Which one is NOT needed? (a) a towel (b) a stiff postcard (c) a magnet (d) a sink or a bucket
40. 40.True or false: a stiff postcard is needed for the card-on-a-glass trick. (a) True (b) False

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