Air Pressure Experiment Worksheet

Science experiments lesson 6: Air pressure: the card on a glass · Set 687 · 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 is the odd one out? (a) a bicycle pump (b) a drinking straw (c) a medicine dropper (d) a compass needle
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 measure it (b) we change it (c) we keep it the same
3. 3.🧺 Do we need a stiff postcard for the card-on-a-glass trick? (a) needed (b) not needed
4. 4.True or false: a magnetic chess set works by air pressure. (a) True (b) False
5. 5.🧺 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 towel (d) a sink or a bucket
6. 6.⚖️ 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) False (b) True
7. 7.⚖️ 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
8. 8.🥛 Does a magnetic pin holder work by air pressure or by magnetism? (a) magnetism (b) air pressure
9. 9.⚖️ 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) how full the glass is (c) whether the card stays
10. 10.🔍 You turn the full glass upside down, holding the card, then let go of the card. What happens? (a) the water turns to ice (b) the glass breaks (c) the card flies away (d) the card stays on
11. 11.🔍 Which is the odd one out? (a) a drinking straw (b) a magnetic chess set (c) a vacuum cleaner (d) a suction hook
12. 12.🔮 Predict: you squeeze an empty plastic bottle with its cap screwed on tight. Why is it hard? (a) water is hiding there (b) the bottle is magnetic (c) the cap is sticky (d) air inside pushes back
13. 13.True or false: a towel is not needed for the card-on-a-glass trick. (a) False (b) True
14. 14.🔍 Which is the odd one out? (a) a fridge magnet (b) a suction hook (c) a magnetic chess set (d) a magnetic pin holder
15. 15.🧺 Three of these are needed for the card-on-a-glass trick. Which one is NOT needed? (a) a towel (b) a stiff postcard (c) turmeric powder (d) a sink or a bucket
16. 16.🔍 Which is the odd one out? (a) a medicine dropper (b) a drinking straw (c) a fridge magnet (d) a bicycle pump
17. 17.🥛 Which of these works by magnetism? (a) a vacuum cleaner (b) a compass needle (c) a medicine dropper (d) a suction hook
18. 18.🥛 Which of these works by air pressure? (a) a magnetic chess set (b) a compass needle (c) a fridge magnet (d) a drinking straw
19. 19.True or false: a suction hook works by magnetism. (a) False (b) True
20. 20.⚖️ 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 measure it (b) we change it (c) we keep it the same
21. 21.🧺 Do we need turmeric powder for the card-on-a-glass trick? (a) needed (b) not needed
22. 22.True or false: a magnetic chess set works by magnetism. (a) False (b) True
23. 23.🛟 Where should you do the card-and-glass trick? (a) over a laptop (b) on a bed (c) over a sink or bucket (d) near a plug point
24. 24.⚖️ 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
25. 25.🛟 Why is a plastic cup safer than a glass for small children here? (a) it is hotter (b) it is heavier (c) it will not break (d) it is magnetic
26. 26.True or false: a fridge magnet works by magnetism. (a) False (b) True
27. 27.🧺 Do we need a battery cell for the card-on-a-glass trick? (a) not needed (b) needed
28. 28.🔍 Which is the odd one out? (a) a magnetic pin holder (b) a bicycle pump (c) a fridge magnet (d) a magnetic chess set
29. 29.🥛 Which of these works by magnetism? (a) a magnetic pin holder (b) a suction hook (c) a bicycle pump (d) a drinking straw
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.🧺 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 mirror (c) a glass of water (d) a towel
32. 32.True or false: a mirror is not needed for the card-on-a-glass trick. (a) False (b) True
33. 33.🧺 Do we need yeast for the card-on-a-glass trick? (a) needed (b) not needed
34. 34.⚖️ 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
35. 35.🥛 Does a vacuum cleaner work by air pressure or by magnetism? (a) magnetism (b) air pressure
36. 36.True or false: turmeric powder is not needed for the card-on-a-glass trick. (a) True (b) False
37. 37.🧺 Which of these is needed for the card-on-a-glass trick? (a) a magnet (b) a balloon (c) a battery cell (d) a towel
38. 38.🥛 Which of these works by magnetism? (a) a fridge magnet (b) a suction hook (c) a vacuum cleaner (d) a medicine dropper
39. 39.True or false: a stiff postcard is not needed for the card-on-a-glass trick. (a) True (b) False
40. 40.True or false: a glass of water is not needed for the card-on-a-glass trick. (a) True (b) False

Free science experiments lessons, practice and worksheets at talentjr.in/science-experiments-for-kids