Air Pressure Experiment Worksheet

Science experiments lesson 6: Air pressure: the card on a glass · Set 275 · 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? Which of these is kept the same? (a) how full the glass is (b) the way we turn it (c) whether the card stays
2. 2.🧺 Which of these is not needed for the card-on-a-glass trick? (a) a sink or a bucket (b) a stiff postcard (c) a towel (d) a balloon
3. 3.⚖️ 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 keep it the same (b) we measure it (c) we change it
4. 4.🧺 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 stiff postcard (d) a battery cell
5. 5.🔮 Predict: you blow up a balloon. What fills it? (a) air (b) water (c) smoke (d) sand
6. 6.⚖️ Fair test — does the card stay on with a full glass and with a half-full glass? True or false: the same card is what we measure. (a) False (b) True
7. 7.🔮 Why do we try the card trick over a sink or a bucket? (a) to grow plants (b) to make it rain (c) to cool the glass (d) to catch any spills
8. 8.🛟 Where should you do the card-and-glass trick? (a) over a laptop (b) near a plug point (c) on a bed (d) over a sink or bucket
9. 9.🥛 Does a medicine dropper work by air pressure or by magnetism? (a) magnetism (b) air pressure
10. 10.🔍 You turn the full glass upside down, holding the card, then let go of the card. What happens? (a) the water turns to ice (b) the card stays on (c) the card flies away (d) the glass breaks
11. 11.🧺 Three of these are needed for the card-on-a-glass trick. Which one is NOT needed? (a) a towel (b) yeast (c) a sink or a bucket (d) a glass of water
12. 12.🧺 Which of these is needed for the card-on-a-glass trick? (a) a battery cell (b) a towel (c) turmeric powder (d) a balloon
13. 13.⚖️ 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) False (b) True
14. 14.🧺 Do we need yeast for the card-on-a-glass trick? (a) needed (b) not needed
15. 15.🧺 Which of these is needed for the card-on-a-glass trick? (a) turmeric powder (b) a mirror (c) a sink or a bucket (d) a balloon
16. 16.True or false: a mirror is not needed for the card-on-a-glass trick. (a) False (b) True
17. 17.🥛 Does a drinking straw work by air pressure or by magnetism? (a) air pressure (b) magnetism
18. 18.🧺 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 mirror (c) a glass of water (d) a towel
19. 19.⚖️ 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) how full the glass is (c) the same glass (d) the same card
20. 20.True or false: a stiff postcard is needed for the card-on-a-glass trick. (a) False (b) True
21. 21.🛟 Why is a plastic cup safer than a glass for small children here? (a) it is hotter (b) it is heavier (c) it will not break (d) it is magnetic
22. 22.🥛 Does a magnetic chess set work by air pressure or by magnetism? (a) air pressure (b) magnetism
23. 23.🧺 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 towel
24. 24.🥛 Does a suction hook work by air pressure or by magnetism? (a) air pressure (b) magnetism
25. 25.🔍 Which is the odd one out? (a) a bicycle pump (b) a vacuum cleaner (c) a suction hook (d) a magnetic pin holder
26. 26.⚖️ 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 way we turn it (c) the same glass (d) the same card
27. 27.🥛 Which of these works by magnetism? (a) a suction hook (b) a fridge magnet (c) a bicycle pump (d) a vacuum cleaner
28. 28.🔍 Which is the odd one out? (a) a fridge magnet (b) a drinking straw (c) a magnetic chess set (d) a magnetic pin holder
29. 29.🔍 Which is the odd one out? (a) a bicycle pump (b) a vacuum cleaner (c) a drinking straw (d) a fridge magnet
30. 30.🥛 Which of these works by magnetism? (a) a magnetic pin holder (b) a vacuum cleaner (c) a bicycle pump (d) a suction hook
31. 31.True or false: a towel is not needed for the card-on-a-glass trick. (a) True (b) False
32. 32.🧺 Do we need a magnet for the card-on-a-glass trick? (a) needed (b) not needed
33. 33.⚖️ 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
34. 34.🥛 Why is it best to fill the glass right to the top? (a) the card gets wet (b) little air left inside (c) water is heavier (d) it looks nicer
35. 35.🧺 Which of these is not needed for the card-on-a-glass trick? (a) a towel (b) a glass of water (c) a mirror (d) a stiff postcard
36. 36.🥛 Which of these works by air pressure? (a) a compass needle (b) a magnetic chess set (c) a suction hook (d) a magnetic pin holder
37. 37.🥛 Which of these works by air pressure? (a) a compass needle (b) a drinking straw (c) a magnetic chess set (d) a fridge magnet
38. 38.⚖️ 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 kept the same. (a) True (b) False
39. 39.⚖️ 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
40. 40.🥛 Does a fridge magnet work by air pressure or by magnetism? (a) air pressure (b) magnetism

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