Air Pressure Experiment Worksheet

Science experiments lesson 6: Air pressure: the card on a glass · Set 349 · 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 mirror (b) a glass of water (c) a magnet (d) yeast
2. 2.🛟 Why is a plastic cup safer than a glass for small children here? (a) it is heavier (b) it is hotter (c) it will not break (d) it is magnetic
3. 3.🧺 Which of these is not needed for the card-on-a-glass trick? (a) a glass of water (b) a balloon (c) a stiff postcard (d) a towel
4. 4.🥛 Does a magnetic chess set work by air pressure or by magnetism? (a) magnetism (b) air pressure
5. 5.🥛 Does a medicine dropper work by air pressure or by magnetism? (a) magnetism (b) air pressure
6. 6.⚖️ 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 glass (b) how full the glass is (c) whether the card stays (d) the same card
7. 7.🔮 Predict: you blow up a balloon. What fills it? (a) water (b) sand (c) smoke (d) air
8. 8.🥛 Which of these works by magnetism? (a) a drinking straw (b) a vacuum cleaner (c) a medicine dropper (d) a magnetic chess set
9. 9.🧺 Which of these is needed for the card-on-a-glass trick? (a) yeast (b) a sink or a bucket (c) a magnet (d) a balloon
10. 10.True or false: a stiff postcard is not needed for the card-on-a-glass trick. (a) True (b) False
11. 11.🔍 Which is the odd one out? (a) a magnetic pin holder (b) a compass needle (c) a magnetic chess set (d) a drinking straw
12. 12.🥛 Does a compass needle work by air pressure or by magnetism? (a) magnetism (b) air pressure
13. 13.🔍 Which is the odd one out? (a) a medicine dropper (b) a vacuum cleaner (c) a suction hook (d) a magnetic pin holder
14. 14.🥛 Which of these works by air pressure? (a) a fridge magnet (b) a compass needle (c) a magnetic pin holder (d) a bicycle pump
15. 15.🧺 Which of these is not needed for the card-on-a-glass trick? (a) a stiff postcard (b) a magnet (c) a sink or a bucket (d) a towel
16. 16.⚖️ 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) the same card (c) whether the card stays (d) how full the glass is
17. 17.⚖️ 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) False (b) True
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 measure it (b) we change it (c) we keep it the same
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 stiff postcard is needed for the card-on-a-glass trick. (a) True (b) False
21. 21.🥛 Which of these works by air pressure? (a) a magnetic pin holder (b) a medicine dropper (c) a magnetic chess set (d) a fridge magnet
22. 22.🧺 Do we need a glass of water for the card-on-a-glass trick? (a) needed (b) not needed
23. 23.⚖️ 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 what we measure. (a) True (b) False
24. 24.🛟 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
25. 25.🧺 Which of these is needed for the card-on-a-glass trick? (a) yeast (b) a towel (c) a mirror (d) turmeric powder
26. 26.🥛 Does a fridge magnet work by air pressure or by magnetism? (a) magnetism (b) air pressure
27. 27.🧺 Three of these are needed for the card-on-a-glass trick. Which one is NOT needed? (a) yeast (b) a sink or a bucket (c) a glass of water (d) a stiff postcard
28. 28.🔍 Which is the odd one out? (a) a magnetic chess set (b) a suction hook (c) a medicine dropper (d) a vacuum cleaner
29. 29.🧺 Three of these are needed for the card-on-a-glass trick. Which one is NOT needed? (a) a stiff postcard (b) a glass of water (c) a sink or a bucket (d) a mirror
30. 30.⚖️ 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
31. 31.🧺 Which of these is not needed for the card-on-a-glass trick? (a) a sink or a bucket (b) turmeric powder (c) a towel (d) a stiff postcard
32. 32.🔍 Which is the odd one out? (a) a magnetic pin holder (b) a bicycle pump (c) a compass needle (d) a fridge magnet
33. 33.🧺 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 balloon
34. 34.True or false: turmeric powder is not needed for the card-on-a-glass trick. (a) False (b) True
35. 35.🧺 Do we need a sink or a bucket for the card-on-a-glass trick? (a) not needed (b) needed
36. 36.True or false: a medicine dropper works by air pressure. (a) True (b) False
37. 37.True or false: a sink or a bucket is not needed for the card-on-a-glass trick. (a) True (b) False
38. 38.📘 Air presses on everything around us. What is this push called? (a) magnetism (b) air pressure (c) friction (d) sunlight
39. 39.True or false: a sink or a bucket is needed for the card-on-a-glass trick. (a) True (b) False
40. 40.⚖️ 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) True (b) False

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