Air Pressure Experiment Worksheet

Science experiments lesson 6: Air pressure: the card on a glass · Set 654 · 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.🛟 Where should you do the card-and-glass trick? (a) over a sink or bucket (b) over a laptop (c) near a plug point (d) on a bed
2. 2.True or false: a mirror is not needed for the card-on-a-glass trick. (a) False (b) True
3. 3.True or false: a drinking straw works by magnetism. (a) False (b) True
4. 4.⚖️ 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 way we turn it
5. 5.⚖️ 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) whether the card stays (c) the same glass
6. 6.🔮 Predict: you blow up a balloon. What fills it? (a) air (b) water (c) smoke (d) sand
7. 7.🔮 Why do we try the card trick over a sink or a bucket? (a) to catch any spills (b) to grow plants (c) to make it rain (d) to cool the glass
8. 8.📘 Air presses on everything around us. What is this push called? (a) magnetism (b) friction (c) sunlight (d) air pressure
9. 9.🧺 Which of these is not needed for the card-on-a-glass trick? (a) a glass of water (b) turmeric powder (c) a towel (d) a stiff postcard
10. 10.⚖️ 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
11. 11.⚖️ 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 keep it the same (b) we change it (c) we measure it
12. 12.True or false: turmeric powder is not needed for the card-on-a-glass trick. (a) True (b) False
13. 13.True or false: a glass of water is not needed for the card-on-a-glass trick. (a) False (b) True
14. 14.🧺 Which of these is needed for the card-on-a-glass trick? (a) yeast (b) turmeric powder (c) a stiff postcard (d) a mirror
15. 15.🧺 Which of these is needed for the card-on-a-glass trick? (a) a mirror (b) a balloon (c) a glass of water (d) a battery cell
16. 16.🧺 Which of these is needed for the card-on-a-glass trick? (a) a sink or a bucket (b) a mirror (c) a battery cell (d) turmeric powder
17. 17.🧺 Which of these is not needed for the card-on-a-glass trick? (a) a mirror (b) a glass of water (c) a stiff postcard (d) a sink or a bucket
18. 18.🧺 Three of these are needed for the card-on-a-glass trick. Which one is NOT needed? (a) a towel (b) a glass of water (c) a stiff postcard (d) yeast
19. 19.True or false: yeast is not needed for the card-on-a-glass trick. (a) True (b) False
20. 20.🧺 Three of these are needed for the card-on-a-glass trick. Which one is NOT needed? (a) a glass of water (b) a balloon (c) a stiff postcard (d) a towel
21. 21.⚖️ 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 keep it the same (c) we measure it
22. 22.🥛 Does a bicycle pump work by air pressure or by magnetism? (a) magnetism (b) air pressure
23. 23.True or false: a magnet is not needed for the card-on-a-glass trick. (a) False (b) True
24. 24.🛟 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
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.True or false: a medicine dropper works by magnetism. (a) True (b) False
27. 27.🧺 Three of these are needed for the card-on-a-glass trick. Which one is NOT needed? (a) a towel (b) a sink or a bucket (c) a battery cell (d) a stiff postcard
28. 28.🧺 Do we need a glass of water for the card-on-a-glass trick? (a) not needed (b) needed
29. 29.🔍 Which is the odd one out? (a) a suction hook (b) a fridge magnet (c) a magnetic chess set (d) a magnetic pin holder
30. 30.⚖️ 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 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) a glass of water (c) a magnet (d) a stiff postcard
32. 32.🧺 Do we need a sink or a bucket for the card-on-a-glass trick? (a) not needed (b) needed
33. 33.True or false: yeast is needed for the card-on-a-glass trick. (a) False (b) True
34. 34.🧺 Do we need a towel for the card-on-a-glass trick? (a) not needed (b) needed
35. 35.⚖️ 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 kept the same. (a) True (b) False
36. 36.True or false: a stiff postcard is not needed for the card-on-a-glass trick. (a) True (b) False
37. 37.🧺 Do we need yeast for the card-on-a-glass trick? (a) needed (b) not needed
38. 38.True or false: a fridge magnet works by magnetism. (a) True (b) False
39. 39.🔍 Which is the odd one out? (a) a drinking straw (b) a magnetic pin holder (c) a suction hook (d) a vacuum cleaner
40. 40.⚖️ 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

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