Air Pressure Experiment Worksheet

Science experiments lesson 6: Air pressure: the card on a glass · Set 475 · 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.🥛 What holds the card up against the upside-down glass? (a) air pushing up (b) the cold water (c) a magnet (d) glue on the card
2. 2.True or false: a suction hook works by magnetism. (a) False (b) True
3. 3.🧺 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 stiff postcard (c) a towel (d) a mirror
4. 4.⚖️ 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) whether the card stays (d) the way we turn it
5. 5.True or false: a glass of water is not needed for the card-on-a-glass trick. (a) False (b) True
6. 6.🧺 Three of these are needed for the card-on-a-glass trick. Which one is NOT needed? (a) a magnet (b) a glass of water (c) a towel (d) a sink or a bucket
7. 7.🧺 Which of these is needed for the card-on-a-glass trick? (a) a sink or a bucket (b) a magnet (c) turmeric powder (d) a balloon
8. 8.📘 Air presses on everything around us. What is this push called? (a) magnetism (b) sunlight (c) friction (d) air pressure
9. 9.True or false: a magnetic chess set works by magnetism. (a) True (b) False
10. 10.🧺 Do we need a battery cell for the card-on-a-glass trick? (a) needed (b) not needed
11. 11.🔮 Predict: you squeeze an empty plastic bottle with its cap screwed on tight. Why is it hard? (a) the bottle is magnetic (b) water is hiding there (c) the cap is sticky (d) air inside pushes back
12. 12.🛟 Why is a plastic cup safer than a glass for small children here? (a) it is hotter (b) it is magnetic (c) it is heavier (d) it will not break
13. 13.🧺 Do we need a sink or a bucket for the card-on-a-glass trick? (a) not needed (b) needed
14. 14.🛟 Where should you do the card-and-glass trick? (a) over a sink or bucket (b) near a plug point (c) over a laptop (d) on a bed
15. 15.True or false: a balloon is needed for the card-on-a-glass trick. (a) True (b) False
16. 16.🥛 Does a bicycle pump work by air pressure or by magnetism? (a) magnetism (b) air pressure
17. 17.🔮 Predict: you blow up a balloon. What fills it? (a) sand (b) air (c) smoke (d) water
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) the same card (b) whether the card stays (c) the same glass (d) how full the glass is
19. 19.🧺 Do we need a magnet for the card-on-a-glass trick? (a) not needed (b) needed
20. 20.⚖️ 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 the one thing we change. (a) False (b) True
21. 21.🧺 Do we need a mirror for the card-on-a-glass trick? (a) not needed (b) needed
22. 22.🧺 Which of these is needed for the card-on-a-glass trick? (a) a balloon (b) a magnet (c) a glass of water (d) a mirror
23. 23.🥛 Which of these works by magnetism? (a) a bicycle pump (b) a vacuum cleaner (c) a suction hook (d) a magnetic chess set
24. 24.🥛 Does a drinking straw work by air pressure or by magnetism? (a) magnetism (b) air pressure
25. 25.True or false: a battery cell is not needed for the card-on-a-glass trick. (a) False (b) True
26. 26.⚖️ 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
27. 27.🔍 Which is the odd one out? (a) a bicycle pump (b) a fridge magnet (c) a magnetic chess set (d) a magnetic pin holder
28. 28.🥤 Why does juice go up a drinking straw when you sip? (a) the straw is magnetic (b) the straw is hot (c) juice likes plastic (d) air pushes it up
29. 29.🔍 Which is the odd one out? (a) a magnetic pin holder (b) a vacuum cleaner (c) a fridge magnet (d) a magnetic chess set
30. 30.🧺 Which of these is needed for the card-on-a-glass trick? (a) a magnet (b) a towel (c) a balloon (d) a battery cell
31. 31.🥛 Does a magnetic pin holder work by air pressure or by magnetism? (a) air pressure (b) magnetism
32. 32.🧺 Which of these is not needed for the card-on-a-glass trick? (a) a stiff postcard (b) a towel (c) a magnet (d) a glass of water
33. 33.True or false: a suction hook works by air pressure. (a) True (b) False
34. 34.🔍 Which is the odd one out? (a) a magnetic pin holder (b) a bicycle pump (c) a suction hook (d) a drinking straw
35. 35.🥛 Does a magnetic chess set work by air pressure or by magnetism? (a) magnetism (b) air pressure
36. 36.🥛 Does a medicine dropper work by air pressure or by magnetism? (a) magnetism (b) air pressure
37. 37.True or false: a vacuum cleaner works by air pressure. (a) False (b) True
38. 38.🔍 Which is the odd one out? (a) a suction hook (b) a magnetic chess set (c) a drinking straw (d) a bicycle pump
39. 39.🧺 Which of these is not needed for the card-on-a-glass trick? (a) a glass of water (b) a balloon (c) a sink or a bucket (d) a stiff postcard
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 same glass”? (a) we measure it (b) we change it (c) we keep it the same

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