Air Pressure Experiment Worksheet

Science experiments lesson 6: Air pressure: the card on a glass · Set 978 · 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.🧺 Which of these is needed for the card-on-a-glass trick? (a) a magnet (b) yeast (c) a balloon (d) a stiff postcard
2. 2.🧺 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 battery cell (d) a towel
3. 3.🥛 Does a drinking straw work by air pressure or by magnetism? (a) magnetism (b) air pressure
4. 4.⚖️ 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
5. 5.🔍 Which is the odd one out? (a) a bicycle pump (b) a vacuum cleaner (c) a magnetic pin holder (d) a drinking straw
6. 6.True or false: yeast is needed for the card-on-a-glass trick. (a) True (b) False
7. 7.🧺 Do we need a magnet for the card-on-a-glass trick? (a) needed (b) not needed
8. 8.🧺 Which of these is needed for the card-on-a-glass trick? (a) a balloon (b) a sink or a bucket (c) a battery cell (d) turmeric powder
9. 9.🔮 Predict: you blow up a balloon. What fills it? (a) smoke (b) sand (c) air (d) water
10. 10.🥛 Does a suction hook work by air pressure or by magnetism? (a) magnetism (b) air pressure
11. 11.⚖️ 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
12. 12.🛟 Why is a plastic cup safer than a glass for small children here? (a) it is magnetic (b) it is heavier (c) it is hotter (d) it will not break
13. 13.⚖️ 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) how full the glass is (b) the same glass (c) the same card (d) whether the card stays
14. 14.🔮 Why do we try the card trick over a sink or a bucket? (a) to catch any spills (b) to cool the glass (c) to grow plants (d) to make it rain
15. 15.True or false: a drinking straw works by magnetism. (a) True (b) False
16. 16.🧺 Do we need a balloon for the card-on-a-glass trick? (a) not needed (b) needed
17. 17.🧺 Do we need a glass of water for the card-on-a-glass trick? (a) needed (b) not needed
18. 18.📘 Air presses on everything around us. What is this push called? (a) air pressure (b) sunlight (c) friction (d) magnetism
19. 19.⚖️ 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) True (b) False
20. 20.⚖️ 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 change it (b) we measure it (c) we keep it the same
21. 21.True or false: a magnetic chess set works by air pressure. (a) False (b) True
22. 22.🧺 Which of these is needed for the card-on-a-glass trick? (a) a towel (b) a magnet (c) a balloon (d) a battery cell
23. 23.🛟 Where should you do the card-and-glass trick? (a) on a bed (b) over a sink or bucket (c) near a plug point (d) over a laptop
24. 24.🧺 Do we need a battery cell for the card-on-a-glass trick? (a) not needed (b) needed
25. 25.True or false: a bicycle pump works by magnetism. (a) False (b) True
26. 26.🧺 Which of these is needed for the card-on-a-glass trick? (a) a magnet (b) a glass of water (c) yeast (d) a balloon
27. 27.True or false: a medicine dropper works by magnetism. (a) False (b) True
28. 28.🔍 Which is the odd one out? (a) a fridge magnet (b) a suction hook (c) a bicycle pump (d) a drinking straw
29. 29.🥛 Which of these works by magnetism? (a) a medicine dropper (b) a magnetic pin holder (c) a bicycle pump (d) a vacuum cleaner
30. 30.🔍 Which is the odd one out? (a) a vacuum cleaner (b) a drinking straw (c) a magnetic chess set (d) a bicycle pump
31. 31.True or false: a magnet is needed for the card-on-a-glass trick. (a) True (b) False
32. 32.🥛 Does a fridge magnet work by air pressure or by magnetism? (a) magnetism (b) air pressure
33. 33.True or false: a towel is needed for the card-on-a-glass trick. (a) False (b) True
34. 34.⚖️ 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 keep it the same (c) we change it
35. 35.🥛 What holds the card up against the upside-down glass? (a) the cold water (b) glue on the card (c) air pushing up (d) a magnet
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) how full the glass is (c) the same glass
37. 37.True or false: a fridge magnet works by magnetism. (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 card”? (a) we change it (b) we measure it (c) we keep it the same
39. 39.🥛 Does a medicine dropper work by air pressure or by magnetism? (a) magnetism (b) air pressure
40. 40.🥛 Which of these works by magnetism? (a) a suction hook (b) a medicine dropper (c) a bicycle pump (d) a compass needle

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