Air Pressure Experiment Worksheet

Science experiments lesson 6: Air pressure: the card on a glass · Set 965 · 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.🛟 Where should you do the card-and-glass trick? (a) near a plug point (b) on a bed (c) over a laptop (d) over a sink or bucket
2. 2.True or false: a bicycle pump works by air pressure. (a) False (b) True
3. 3.⚖️ 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) False (b) True
4. 4.True or false: a drinking straw works by air pressure. (a) False (b) True
5. 5.🧺 Which of these is not needed for the card-on-a-glass trick? (a) a glass of water (b) a stiff postcard (c) yeast (d) a sink or a bucket
6. 6.🧺 Do we need a stiff postcard for the card-on-a-glass trick? (a) not needed (b) needed
7. 7.⚖️ 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) False (b) True
8. 8.🔮 Predict: you blow up a balloon. What fills it? (a) sand (b) water (c) air (d) smoke
9. 9.True or false: a vacuum cleaner works by air pressure. (a) False (b) True
10. 10.🔍 Which is the odd one out? (a) a vacuum cleaner (b) a magnetic chess set (c) a bicycle pump (d) a suction hook
11. 11.🔮 Why do we try the card trick over a sink or a bucket? (a) to make it rain (b) to cool the glass (c) to grow plants (d) to catch any spills
12. 12.True or false: a battery cell is needed for the card-on-a-glass trick. (a) False (b) True
13. 13.🧺 Three of these are needed for the card-on-a-glass trick. Which one is NOT needed? (a) a glass of water (b) turmeric powder (c) a towel (d) a stiff postcard
14. 14.🧺 Which of these is needed for the card-on-a-glass trick? (a) turmeric powder (b) a battery cell (c) a balloon (d) a sink or a bucket
15. 15.🥛 Which of these works by air pressure? (a) a vacuum cleaner (b) a magnetic chess set (c) a fridge magnet (d) a compass needle
16. 16.⚖️ 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) how full the glass is (c) the same glass (d) the way we turn it
17. 17.🥛 Why is it best to fill the glass right to the top? (a) water is heavier (b) it looks nicer (c) the card gets wet (d) little air left inside
18. 18.🧺 Which of these is not needed for the card-on-a-glass trick? (a) a stiff postcard (b) a magnet (c) a sink or a bucket (d) a towel
19. 19.True or false: a magnetic pin holder works by air pressure. (a) False (b) True
20. 20.🧺 Which of these is needed for the card-on-a-glass trick? (a) a magnet (b) a stiff postcard (c) a mirror (d) a balloon
21. 21.🧺 Which of these is needed for the card-on-a-glass trick? (a) a towel (b) a battery cell (c) turmeric powder (d) a magnet
22. 22.🧺 Which of these is needed for the card-on-a-glass trick? (a) a battery cell (b) a glass of water (c) a balloon (d) a mirror
23. 23.⚖️ 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) True (b) False
24. 24.🥛 Which of these works by air pressure? (a) a magnetic pin holder (b) a fridge magnet (c) a bicycle pump (d) a magnetic chess set
25. 25.🥛 Does a vacuum cleaner work by air pressure or by magnetism? (a) magnetism (b) air pressure
26. 26.⚖️ 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 keep it the same (c) we change it
27. 27.🥛 Which of these works by air pressure? (a) a fridge magnet (b) a magnetic chess set (c) a compass needle (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 what we measure? (a) the same card (b) the way we turn it (c) whether the card stays (d) how full the glass is
29. 29.🧺 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 sink or a bucket (d) a stiff postcard
30. 30.🧺 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 glass of water (c) a battery cell (d) a stiff postcard
31. 31.🧺 Three of these are needed for the card-on-a-glass trick. Which one is NOT needed? (a) a towel (b) a magnet (c) a sink or a bucket (d) a glass of water
32. 32.🥛 Does a drinking straw work by air pressure or by magnetism? (a) magnetism (b) air pressure
33. 33.🔍 Which is the odd one out? (a) a suction hook (b) a magnetic chess set (c) a fridge magnet (d) a compass needle
34. 34.🔍 Which is the odd one out? (a) a magnetic pin holder (b) a suction hook (c) a drinking straw (d) a vacuum cleaner
35. 35.⚖️ 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 change it (b) we measure it (c) we keep it the same
36. 36.⚖️ 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 way we turn it (c) how full the glass is
37. 37.True or false: a magnetic chess set works by air pressure. (a) True (b) False
38. 38.🧺 Three of these are needed for the card-on-a-glass trick. Which one is NOT needed? (a) a stiff postcard (b) a sink or a bucket (c) a mirror (d) a towel
39. 39.🔍 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 card stays on (c) the glass breaks (d) the water turns to ice
40. 40.🥛 Which of these works by magnetism? (a) a suction hook (b) a fridge magnet (c) a medicine dropper (d) a bicycle pump

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