Air Pressure Experiment Worksheet

Science experiments lesson 6: Air pressure: the card on a glass · Set 133 · 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? True or false: the same card is kept the same. (a) False (b) True
2. 2.🧺 Which of these is needed for the card-on-a-glass trick? (a) a glass of water (b) turmeric powder (c) a mirror (d) a magnet
3. 3.⚖️ 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 same glass (c) how full the glass is
4. 4.⚖️ 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
5. 5.🧺 Do we need a balloon for the card-on-a-glass trick? (a) needed (b) not needed
6. 6.🔍 Which is the odd one out? (a) a medicine dropper (b) a suction hook (c) a vacuum cleaner (d) a fridge magnet
7. 7.🔍 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 water turns to ice (c) the card stays on (d) the glass breaks
8. 8.🥛 Does a medicine dropper work by air pressure or by magnetism? (a) air pressure (b) magnetism
9. 9.🛟 Where should you do the card-and-glass trick? (a) over a laptop (b) over a sink or bucket (c) on a bed (d) near a plug point
10. 10.🥛 Does a compass needle work by air pressure or by magnetism? (a) air pressure (b) magnetism
11. 11.⚖️ 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
12. 12.True or false: yeast is not needed for the card-on-a-glass trick. (a) False (b) True
13. 13.🔍 Which is the odd one out? (a) a fridge magnet (b) a magnetic pin holder (c) a vacuum cleaner (d) a magnetic chess set
14. 14.⚖️ 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) whether the card stays (b) the way we turn it (c) how full the glass is (d) the same card
15. 15.True or false: a glass of water is needed for the card-on-a-glass trick. (a) False (b) True
16. 16.🧺 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 stiff postcard (c) a glass of water (d) a balloon
17. 17.🥛 Does a vacuum cleaner work by air pressure or by magnetism? (a) air pressure (b) magnetism
18. 18.⚖️ 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 keep it the same (c) we measure it
19. 19.⚖️ 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
20. 20.🧺 Which of these is not needed for the card-on-a-glass trick? (a) yeast (b) a stiff postcard (c) a sink or a bucket (d) a glass of water
21. 21.🥛 Does a fridge magnet work by air pressure or by magnetism? (a) air pressure (b) magnetism
22. 22.📘 Air presses on everything around us. What is this push called? (a) magnetism (b) air pressure (c) friction (d) sunlight
23. 23.🔮 Predict: you blow up a balloon. What fills it? (a) smoke (b) sand (c) water (d) air
24. 24.🥛 Which of these works by air pressure? (a) a magnetic chess set (b) a magnetic pin holder (c) a fridge magnet (d) a suction hook
25. 25.True or false: yeast is needed for the card-on-a-glass trick. (a) True (b) False
26. 26.🧺 Three of these are needed for the card-on-a-glass trick. Which one is NOT needed? (a) a battery cell (b) a glass of water (c) a towel (d) a stiff postcard
27. 27.True or false: a magnetic chess set works by magnetism. (a) False (b) True
28. 28.⚖️ 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) True (b) False
29. 29.🔮 Why do we try the card trick over a sink or a bucket? (a) to cool the glass (b) to catch any spills (c) to make it rain (d) to grow plants
30. 30.⚖️ 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) how full the glass is (c) whether the card stays (d) the same glass
31. 31.True or false: a compass needle works by air pressure. (a) False (b) True
32. 32.True or false: a towel is not needed for the card-on-a-glass trick. (a) False (b) True
33. 33.🔍 Which is the odd one out? (a) a medicine dropper (b) a compass needle (c) a vacuum cleaner (d) a suction hook
34. 34.🥛 What holds the card up against the upside-down glass? (a) air pushing up (b) glue on the card (c) a magnet (d) the cold water
35. 35.⚖️ 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
36. 36.🛟 Why is a plastic cup safer than a glass for small children here? (a) it is magnetic (b) it is hotter (c) it will not break (d) it is heavier
37. 37.True or false: a balloon is needed for the card-on-a-glass trick. (a) True (b) False
38. 38.⚖️ 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 change it (b) we keep it the same (c) we measure it
39. 39.🧺 Three of these are needed for the card-on-a-glass trick. Which one is NOT needed? (a) turmeric powder (b) a glass of water (c) a sink or a bucket (d) a stiff postcard
40. 40.🥛 Does a bicycle pump work by air pressure or by magnetism? (a) magnetism (b) air pressure

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