Air Pressure Experiment Worksheet

Science experiments lesson 6: Air pressure: the card on a glass · Set 859 · 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 medicine dropper works by magnetism. (a) False (b) True
2. 2.⚖️ 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 change it (c) we keep it the same
3. 3.🔮 Predict: you blow up a balloon. What fills it? (a) smoke (b) sand (c) air (d) water
4. 4.True or false: a magnetic pin holder works by air pressure. (a) True (b) False
5. 5.🧺 Do we need a magnet for the card-on-a-glass trick? (a) needed (b) not needed
6. 6.🧺 Do we need turmeric powder for the card-on-a-glass trick? (a) needed (b) not 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) True (b) False
8. 8.🧺 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 towel (d) yeast
9. 9.True or false: turmeric powder is not needed for the card-on-a-glass trick. (a) False (b) True
10. 10.⚖️ 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 glass (b) the same card (c) the way we turn it (d) how full the glass is
11. 11.🧺 Do we need a battery cell for the card-on-a-glass trick? (a) needed (b) not needed
12. 12.🧺 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) turmeric powder (d) a glass of water
13. 13.⚖️ 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
14. 14.🥛 Does a magnetic pin holder work by air pressure or by magnetism? (a) magnetism (b) air pressure
15. 15.🧺 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 towel (d) a stiff postcard
16. 16.🥛 Does a medicine dropper work by air pressure or by magnetism? (a) air pressure (b) magnetism
17. 17.⚖️ 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
18. 18.🧺 Which of these is not needed for the card-on-a-glass trick? (a) a towel (b) a sink or a bucket (c) a magnet (d) a glass of water
19. 19.True or false: a glass of water is needed for the card-on-a-glass trick. (a) False (b) True
20. 20.True or false: a compass needle works by air pressure. (a) True (b) False
21. 21.🥛 Does a magnetic chess set work by air pressure or by magnetism? (a) air pressure (b) magnetism
22. 22.True or false: a drinking straw works by air pressure. (a) True (b) False
23. 23.🧺 Which of these is not needed for the card-on-a-glass trick? (a) yeast (b) a towel (c) a glass of water (d) a stiff postcard
24. 24.🥤 Why does juice go up a drinking straw when you sip? (a) juice likes plastic (b) the straw is magnetic (c) air pushes it up (d) the straw is hot
25. 25.🛟 Where should you do the card-and-glass trick? (a) near a plug point (b) over a sink or bucket (c) on a bed (d) over a laptop
26. 26.🧺 Do we need a mirror for the card-on-a-glass trick? (a) not needed (b) needed
27. 27.True or false: yeast is needed for the card-on-a-glass trick. (a) True (b) False
28. 28.True or false: a glass of water is not needed for the card-on-a-glass trick. (a) True (b) False
29. 29.🧺 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 sink or a bucket (d) a stiff postcard
30. 30.⚖️ 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
31. 31.🔍 Which is the odd one out? (a) a magnetic chess set (b) a fridge magnet (c) a magnetic pin holder (d) a suction hook
32. 32.🔍 You turn the full glass upside down, holding the card, then let go of the card. What happens? (a) the glass breaks (b) the water turns to ice (c) the card stays on (d) the card flies away
33. 33.⚖️ Fair test — does the card stay on with a full glass and with a half-full glass? True or false: the same card is kept the same. (a) True (b) False
34. 34.⚖️ 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) whether the card stays (b) the same glass (c) how full the glass is (d) the way we turn it
35. 35.🥛 Which of these works by air pressure? (a) a suction hook (b) a magnetic chess set (c) a magnetic pin holder (d) a fridge magnet
36. 36.True or false: a suction hook works by air pressure. (a) False (b) True
37. 37.🛟 Why is a plastic cup safer than a glass for small children here? (a) it is heavier (b) it is hotter (c) it is magnetic (d) it will not break
38. 38.True or false: a towel is needed for the card-on-a-glass trick. (a) False (b) True
39. 39.🧺 Do we need a stiff postcard for the card-on-a-glass trick? (a) needed (b) not needed
40. 40.🧺 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 towel (c) a glass of water (d) a battery cell

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