Air Pressure Experiment Worksheet

Science experiments lesson 6: Air pressure: the card on a glass · Set 566 · 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 works by air pressure? (a) a medicine dropper (b) a magnetic chess set (c) a compass needle (d) a fridge magnet
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 keep it the same (b) we change it (c) we measure it
3. 3.🥛 What holds the card up against the upside-down glass? (a) air pushing up (b) a magnet (c) glue on the card (d) the cold water
4. 4.⚖️ 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 keep it the same (b) we measure it (c) we change it
5. 5.🥛 Which of these works by air pressure? (a) a drinking straw (b) a compass needle (c) a magnetic pin holder (d) a magnetic chess set
6. 6.🧺 Do we need a stiff postcard for the card-on-a-glass trick? (a) not needed (b) needed
7. 7.⚖️ 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) whether the card stays (c) the same glass (d) the same card
8. 8.True or false: a compass needle works by magnetism. (a) True (b) False
9. 9.🥛 Does a vacuum cleaner work by air pressure or by magnetism? (a) magnetism (b) air pressure
10. 10.⚖️ 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
11. 11.🧺 Which of these is needed for the card-on-a-glass trick? (a) yeast (b) a balloon (c) a battery cell (d) a towel
12. 12.🧺 Which of these is not needed for the card-on-a-glass trick? (a) a stiff postcard (b) a battery cell (c) a sink or a bucket (d) a glass of water
13. 13.🧺 Do we need a sink or a bucket for the card-on-a-glass trick? (a) not needed (b) needed
14. 14.🛟 Why is a plastic cup safer than a glass for small children here? (a) it is hotter (b) it is magnetic (c) it will not break (d) it is heavier
15. 15.🥛 Does a magnetic pin holder work by air pressure or by magnetism? (a) air pressure (b) magnetism
16. 16.🔍 Which is the odd one out? (a) a vacuum cleaner (b) a drinking straw (c) a magnetic pin holder (d) a suction hook
17. 17.🧺 Which of these is not needed for the card-on-a-glass trick? (a) a stiff postcard (b) a mirror (c) a glass of water (d) a sink or a bucket
18. 18.🥛 Which of these works by air pressure? (a) a bicycle pump (b) a fridge magnet (c) a magnetic chess set (d) a compass needle
19. 19.📘 Air presses on everything around us. What is this push called? (a) friction (b) air pressure (c) magnetism (d) sunlight
20. 20.🧺 Which of these is needed for the card-on-a-glass trick? (a) a glass of water (b) a magnet (c) a battery cell (d) a balloon
21. 21.True or false: a stiff postcard is needed for the card-on-a-glass trick. (a) False (b) True
22. 22.🔮 Predict: you blow up a balloon. What fills it? (a) air (b) water (c) smoke (d) sand
23. 23.🥛 Does a bicycle pump work by air pressure or by magnetism? (a) magnetism (b) air pressure
24. 24.⚖️ Fair test — does the card stay on with a full glass and with a half-full glass? True or false: the way we turn it is kept the same. (a) True (b) False
25. 25.⚖️ 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
26. 26.🥛 Does a drinking straw work by air pressure or by magnetism? (a) magnetism (b) air pressure
27. 27.🥛 Which of these works by air pressure? (a) a magnetic chess set (b) a compass needle (c) a vacuum cleaner (d) a fridge magnet
28. 28.🥛 Which of these works by magnetism? (a) a magnetic pin holder (b) a drinking straw (c) a medicine dropper (d) a suction hook
29. 29.True or false: a sink or a bucket is not needed for the card-on-a-glass trick. (a) True (b) False
30. 30.True or false: a sink or a bucket is needed for the card-on-a-glass trick. (a) False (b) True
31. 31.🧺 Do we need a towel for the card-on-a-glass trick? (a) needed (b) not needed
32. 32.⚖️ 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) how full the glass is (b) the same glass (c) the way we turn it (d) whether the card stays
33. 33.🧺 Three of these are needed for the card-on-a-glass trick. Which one is NOT needed? (a) a glass of water (b) a sink or a bucket (c) a mirror (d) a towel
34. 34.True or false: a fridge magnet works by air pressure. (a) False (b) True
35. 35.True or false: a suction hook works by air pressure. (a) True (b) False
36. 36.🧺 Which of these is needed for the card-on-a-glass trick? (a) a mirror (b) a magnet (c) turmeric powder (d) a sink or a bucket
37. 37.🧺 Do we need turmeric powder for the card-on-a-glass trick? (a) needed (b) not needed
38. 38.🧺 Which of these is not needed for the card-on-a-glass trick? (a) a towel (b) a glass of water (c) a sink or a bucket (d) a balloon
39. 39.True or false: yeast is not needed for the card-on-a-glass trick. (a) False (b) True
40. 40.🧺 Which of these is needed for the card-on-a-glass trick? (a) a magnet (b) a mirror (c) a battery cell (d) a stiff postcard

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