Air Pressure Experiment Worksheet

Science experiments lesson 6: Air pressure: the card on a glass · Set 312 · 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 towel is needed for the card-on-a-glass trick. (a) True (b) False
2. 2.🥛 Which of these works by magnetism? (a) a drinking straw (b) a bicycle pump (c) a vacuum cleaner (d) a compass needle
3. 3.True or false: a stiff postcard is not needed for the card-on-a-glass trick. (a) False (b) True
4. 4.🥛 Which of these works by air pressure? (a) a vacuum cleaner (b) a magnetic pin holder (c) a fridge magnet (d) a magnetic chess set
5. 5.🧺 Which of these is not needed for the card-on-a-glass trick? (a) a magnet (b) a towel (c) a stiff postcard (d) a sink or a bucket
6. 6.🔍 You turn the full glass upside down, holding the card, then let go of the card. What happens? (a) the card flies away (b) the glass breaks (c) the water turns to ice (d) the card stays on
7. 7.⚖️ 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) how full the glass is (d) the same glass
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 what we measure. (a) False (b) True
9. 9.True or false: a sink or a bucket is needed for the card-on-a-glass trick. (a) True (b) False
10. 10.🧺 Three of these are needed for the card-on-a-glass trick. Which one is NOT needed? (a) yeast (b) a glass of water (c) a towel (d) a sink or a bucket
11. 11.🥛 Why is it best to fill the glass right to the top? (a) little air left inside (b) water is heavier (c) the card gets wet (d) it looks nicer
12. 12.⚖️ 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 card (c) whether the card stays
13. 13.True or false: a magnetic chess set works by magnetism. (a) False (b) True
14. 14.🥛 Does a vacuum cleaner work by air pressure or by magnetism? (a) magnetism (b) air pressure
15. 15.🧺 Do we need a towel for the card-on-a-glass trick? (a) not needed (b) needed
16. 16.True or false: a vacuum cleaner works by magnetism. (a) False (b) True
17. 17.🥛 Does a compass needle work by air pressure or by magnetism? (a) magnetism (b) air pressure
18. 18.🥛 Does a bicycle pump work by air pressure or by magnetism? (a) magnetism (b) air pressure
19. 19.True or false: a battery cell is needed for the card-on-a-glass trick. (a) False (b) True
20. 20.🔮 Predict: you blow up a balloon. What fills it? (a) air (b) smoke (c) water (d) sand
21. 21.⚖️ 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 keep it the same (c) we change it
22. 22.True or false: a mirror is not needed for the card-on-a-glass trick. (a) False (b) True
23. 23.True or false: a bicycle pump works by air pressure. (a) False (b) True
24. 24.🔍 Which is the odd one out? (a) a compass needle (b) a magnetic pin holder (c) a magnetic chess set (d) a vacuum cleaner
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) how full the glass is (b) whether the card stays (c) the way we turn it
26. 26.🥛 Which of these works by air pressure? (a) a medicine dropper (b) a magnetic chess set (c) a fridge magnet (d) a magnetic pin holder
27. 27.⚖️ Fair test — does the card stay on with a full glass and with a half-full glass? True or false: the same glass is kept the same. (a) False (b) True
28. 28.🥛 Does a drinking straw work by air pressure or by magnetism? (a) magnetism (b) air pressure
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 the one thing we change. (a) True (b) False
30. 30.⚖️ 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 change it (b) we keep it the same (c) we measure it
31. 31.🧺 Which of these is needed for the card-on-a-glass trick? (a) a magnet (b) a battery cell (c) yeast (d) a sink or a bucket
32. 32.🥛 Which of these works by air pressure? (a) a bicycle pump (b) a magnetic chess set (c) a compass needle (d) a magnetic pin holder
33. 33.🛟 Where should you do the card-and-glass trick? (a) over a laptop (b) on a bed (c) over a sink or bucket (d) near a plug point
34. 34.True or false: a magnetic pin holder works by magnetism. (a) False (b) True
35. 35.🥛 Does a medicine dropper work by air pressure or by magnetism? (a) air pressure (b) magnetism
36. 36.🧺 Three of these are needed for the card-on-a-glass trick. Which one is NOT needed? (a) a towel (b) a battery cell (c) a sink or a bucket (d) a glass of water
37. 37.🔍 Which is the odd one out? (a) a magnetic pin holder (b) a magnetic chess set (c) a compass needle (d) a suction hook
38. 38.⚖️ 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 same glass (b) how full the glass is (c) whether the card stays (d) the same card
39. 39.True or false: a balloon is needed for the card-on-a-glass trick. (a) True (b) False
40. 40.⚖️ 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 keep it the same (b) we measure it (c) we change it

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