Air Pressure Experiment Worksheet

Science experiments lesson 6: Air pressure: the card on a glass · Set 482 · 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 magnetism? (a) a magnetic pin holder (b) a bicycle pump (c) a vacuum cleaner (d) a drinking straw
2. 2.🥛 Does a drinking straw work by air pressure or by magnetism? (a) magnetism (b) air pressure
3. 3.True or false: a vacuum cleaner works by air pressure. (a) False (b) True
4. 4.🥛 Which of these works by magnetism? (a) a fridge magnet (b) a suction hook (c) a bicycle pump (d) a drinking straw
5. 5.True or false: a sink or a bucket is not needed for the card-on-a-glass trick. (a) False (b) True
6. 6.⚖️ 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
7. 7.🥛 Does a medicine dropper work by air pressure or by magnetism? (a) air pressure (b) magnetism
8. 8.🥛 Does a vacuum cleaner work by air pressure or by magnetism? (a) magnetism (b) air pressure
9. 9.🥛 Which of these works by magnetism? (a) a drinking straw (b) a bicycle pump (c) a compass needle (d) a vacuum cleaner
10. 10.🧺 Do we need a glass of water for the card-on-a-glass trick? (a) not needed (b) needed
11. 11.🧺 Which of these is not needed for the card-on-a-glass trick? (a) a stiff postcard (b) a balloon (c) a towel (d) a glass of water
12. 12.True or false: a sink or a bucket is needed for the card-on-a-glass trick. (a) False (b) True
13. 13.🥛 Why is it best to fill the glass right to the top? (a) the card gets wet (b) it looks nicer (c) water is heavier (d) little air left inside
14. 14.🧺 Which of these is needed for the card-on-a-glass trick? (a) a towel (b) a mirror (c) yeast (d) turmeric powder
15. 15.⚖️ 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 change it (b) we keep it the same (c) we measure it
16. 16.⚖️ 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 measure it (b) we change it (c) we keep it the same
17. 17.🥛 Does a suction hook work by air pressure or by magnetism? (a) magnetism (b) air pressure
18. 18.⚖️ 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 way we turn it (d) whether the card stays
19. 19.🔮 Predict: you blow up a balloon. What fills it? (a) water (b) sand (c) smoke (d) air
20. 20.🥛 Which of these works by air pressure? (a) a fridge magnet (b) a magnetic chess set (c) a compass needle (d) a suction hook
21. 21.⚖️ 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
22. 22.🧺 Do we need a sink or a bucket for the card-on-a-glass trick? (a) needed (b) not needed
23. 23.🥛 Does a magnetic pin holder work by air pressure or by magnetism? (a) magnetism (b) air pressure
24. 24.🧺 Which of these is not needed for the card-on-a-glass trick? (a) turmeric powder (b) a glass of water (c) a stiff postcard (d) a sink or a bucket
25. 25.⚖️ 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) False (b) True
26. 26.🧺 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 stiff postcard (d) a balloon
27. 27.🛟 Why is a plastic cup safer than a glass for small children here? (a) it is magnetic (b) it is hotter (c) it will not break (d) it is heavier
28. 28.🧺 Which of these is needed for the card-on-a-glass trick? (a) a glass of water (b) yeast (c) a mirror (d) a battery cell
29. 29.True or false: a compass needle works by air pressure. (a) True (b) False
30. 30.True or false: a drinking straw works by air pressure. (a) True (b) False
31. 31.🔮 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) air inside pushes back (d) the cap is sticky
32. 32.True or false: a battery cell is needed for the card-on-a-glass trick. (a) False (b) True
33. 33.🧺 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) a glass of water (d) a magnet
34. 34.🔍 Which is the odd one out? (a) a magnetic pin holder (b) a drinking straw (c) a bicycle pump (d) a vacuum cleaner
35. 35.🥛 Which of these works by magnetism? (a) a vacuum cleaner (b) a magnetic chess set (c) a bicycle pump (d) a drinking straw
36. 36.⚖️ 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 the one thing we change. (a) True (b) False
37. 37.🧺 Three of these are needed for the card-on-a-glass trick. Which one is NOT needed? (a) a stiff postcard (b) yeast (c) a towel (d) a sink or a bucket
38. 38.True or false: a magnetic pin holder works by air pressure. (a) False (b) True
39. 39.🧺 Do we need a balloon for the card-on-a-glass trick? (a) not needed (b) needed
40. 40.True or false: a suction hook works by air pressure. (a) True (b) False

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