Air Pressure Experiment Worksheet

Science experiments lesson 6: Air pressure: the card on a glass · Set 826 · 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.🧺 Do we need a balloon for the card-on-a-glass trick? (a) not needed (b) needed
2. 2.🥛 Does a vacuum cleaner work by air pressure or by magnetism? (a) magnetism (b) air pressure
3. 3.🔮 Predict: you blow up a balloon. What fills it? (a) air (b) sand (c) smoke (d) water
4. 4.⚖️ 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
5. 5.⚖️ 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) the same card (b) whether the card stays (c) how full the glass is
6. 6.True or false: a medicine dropper works by air pressure. (a) False (b) True
7. 7.🧺 Three of these are needed for the card-on-a-glass trick. Which one is NOT needed? (a) a stiff postcard (b) a towel (c) a mirror (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? What do we do with “how full the glass is”? (a) we change it (b) we measure it (c) we keep it the same
9. 9.🔍 Which is the odd one out? (a) a magnetic chess set (b) a fridge magnet (c) a magnetic pin holder (d) a medicine dropper
10. 10.🔍 Which is the odd one out? (a) a drinking straw (b) a vacuum cleaner (c) a bicycle pump (d) a compass needle
11. 11.🥛 Does a suction hook work by air pressure or by magnetism? (a) magnetism (b) air pressure
12. 12.🧺 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) turmeric powder (d) a stiff postcard
13. 13.🥤 Why does juice go up a drinking straw when you sip? (a) air pushes it up (b) the straw is magnetic (c) the straw is hot (d) juice likes plastic
14. 14.📘 Air presses on everything around us. What is this push called? (a) sunlight (b) magnetism (c) friction (d) air pressure
15. 15.🧺 Which of these is not needed for the card-on-a-glass trick? (a) a battery cell (b) a stiff postcard (c) a towel (d) a glass of water
16. 16.🔍 Which is the odd one out? (a) a fridge magnet (b) a magnetic chess set (c) a drinking straw (d) a compass needle
17. 17.🔍 Which is the odd one out? (a) a compass needle (b) a bicycle pump (c) a fridge magnet (d) a magnetic chess set
18. 18.True or false: a battery cell is needed for the card-on-a-glass trick. (a) False (b) True
19. 19.🥛 Does a compass needle work by air pressure or by magnetism? (a) magnetism (b) air pressure
20. 20.🧺 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 magnet (c) a glass of water (d) a towel
21. 21.True or false: yeast is not needed for the card-on-a-glass trick. (a) True (b) False
22. 22.True or false: a magnetic pin holder works by air pressure. (a) True (b) False
23. 23.🥛 Does a medicine dropper work by air pressure or by magnetism? (a) magnetism (b) air pressure
24. 24.🛟 Where should you do the card-and-glass trick? (a) near a plug point (b) on a bed (c) over a sink or bucket (d) over a laptop
25. 25.🧺 Do we need a magnet for the card-on-a-glass trick? (a) not needed (b) needed
26. 26.⚖️ 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 measure it (b) we change it (c) we keep it the same
27. 27.🔍 Which is the odd one out? (a) a vacuum cleaner (b) a medicine dropper (c) a suction hook (d) a magnetic chess set
28. 28.True or false: a balloon is not needed for the card-on-a-glass trick. (a) True (b) False
29. 29.🔮 Why do we try the card trick over a sink or a bucket? (a) to grow plants (b) to cool the glass (c) to make it rain (d) to catch any spills
30. 30.🔍 You turn the full glass upside down, holding the card, then let go of the card. What happens? (a) the glass breaks (b) the card stays on (c) the water turns to ice (d) the card flies away
31. 31.🥛 Which of these works by magnetism? (a) a vacuum cleaner (b) a medicine dropper (c) a suction hook (d) a compass needle
32. 32.🧺 Do we need a mirror for the card-on-a-glass trick? (a) needed (b) not needed
33. 33.🧺 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 balloon (c) a glass of water (d) a stiff postcard
34. 34.🧺 Which of these is not needed for the card-on-a-glass trick? (a) a sink or a bucket (b) a magnet (c) a stiff postcard (d) a towel
35. 35.🧺 Do we need a sink or a bucket for the card-on-a-glass trick? (a) not needed (b) needed
36. 36.🥛 Which of these works by air pressure? (a) a fridge magnet (b) a magnetic chess set (c) a magnetic pin holder (d) a bicycle pump
37. 37.True or false: a sink or a bucket is needed for the card-on-a-glass trick. (a) False (b) True
38. 38.True or false: a suction hook works by air pressure. (a) False (b) True
39. 39.🧺 Which of these is needed for the card-on-a-glass trick? (a) yeast (b) a mirror (c) a magnet (d) a sink or a bucket
40. 40.True or false: a magnetic chess set works by air pressure. (a) False (b) True

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