Air Pressure Experiment Worksheet

Science experiments lesson 6: Air pressure: the card on a glass · Set 599 · 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.🔍 You turn the full glass upside down, holding the card, then let go of the card. What happens? (a) the glass breaks (b) the card flies away (c) the card stays on (d) the water turns to ice
2. 2.True or false: a mirror is not needed for the card-on-a-glass trick. (a) True (b) False
3. 3.🔍 Which is the odd one out? (a) a bicycle pump (b) a vacuum cleaner (c) a suction hook (d) a magnetic chess set
4. 4.🧺 Three of these are needed for the card-on-a-glass trick. Which one is NOT needed? (a) yeast (b) a glass of water (c) a towel (d) a stiff postcard
5. 5.⚖️ 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) False (b) True
6. 6.🧺 Do we need a stiff postcard for the card-on-a-glass trick? (a) not needed (b) needed
7. 7.🧺 Which of these is needed for the card-on-a-glass trick? (a) yeast (b) turmeric powder (c) a magnet (d) a sink or a bucket
8. 8.🛟 Where should you do the card-and-glass trick? (a) on a bed (b) near a plug point (c) over a sink or bucket (d) over a laptop
9. 9.True or false: a stiff postcard is not needed for the card-on-a-glass trick. (a) True (b) False
10. 10.⚖️ 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 same card (b) whether the card stays (c) the way we turn it (d) how full the glass is
11. 11.🔮 Why do we try the card trick over a sink or a bucket? (a) to grow plants (b) to cool the glass (c) to catch any spills (d) to make it rain
12. 12.True or false: a magnetic chess set works by air pressure. (a) True (b) False
13. 13.⚖️ 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
14. 14.🥛 Which of these works by magnetism? (a) a drinking straw (b) a fridge magnet (c) a suction hook (d) a vacuum cleaner
15. 15.🔮 Predict: you blow up a balloon. What fills it? (a) air (b) sand (c) smoke (d) water
16. 16.⚖️ 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 way we turn it (b) whether the card stays (c) how full the glass is
17. 17.🧺 Do we need a sink or a bucket for the card-on-a-glass trick? (a) not needed (b) needed
18. 18.🥛 Does a magnetic pin holder work by air pressure or by magnetism? (a) magnetism (b) air pressure
19. 19.🥛 Which of these works by air pressure? (a) a fridge magnet (b) a bicycle pump (c) a compass needle (d) a magnetic chess set
20. 20.⚖️ 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 way we turn it (b) the same card (c) whether the card stays (d) the same glass
21. 21.🥛 Does a vacuum cleaner work by air pressure or by magnetism? (a) magnetism (b) air pressure
22. 22.🔍 Which is the odd one out? (a) a suction hook (b) a compass needle (c) a vacuum cleaner (d) a drinking straw
23. 23.True or false: a towel is not needed for the card-on-a-glass trick. (a) False (b) True
24. 24.🥤 Why does juice go up a drinking straw when you sip? (a) the straw is magnetic (b) air pushes it up (c) the straw is hot (d) juice likes plastic
25. 25.True or false: a vacuum cleaner works by magnetism. (a) True (b) False
26. 26.True or false: a compass needle works by magnetism. (a) True (b) False
27. 27.🔮 Predict: you squeeze an empty plastic bottle with its cap screwed on tight. Why is it hard? (a) the bottle is magnetic (b) the cap is sticky (c) water is hiding there (d) air inside pushes back
28. 28.🥛 Which of these works by magnetism? (a) a medicine dropper (b) a vacuum cleaner (c) a compass needle (d) a drinking straw
29. 29.🧺 Do we need yeast for the card-on-a-glass trick? (a) not needed (b) needed
30. 30.🧺 Which of these is needed for the card-on-a-glass trick? (a) a stiff postcard (b) turmeric powder (c) a magnet (d) a battery cell
31. 31.🛟 Why is a plastic cup safer than a glass for small children here? (a) it will not break (b) it is heavier (c) it is hotter (d) it is magnetic
32. 32.⚖️ 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) whether the card stays (b) the same card (c) how full the glass is
33. 33.🥛 Does a bicycle pump work by air pressure or by magnetism? (a) magnetism (b) air pressure
34. 34.🧺 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 magnet (d) a sink or a bucket
35. 35.🧺 Three of these are needed for the card-on-a-glass trick. Which one is NOT needed? (a) a mirror (b) a glass of water (c) a sink or a bucket (d) a stiff postcard
36. 36.⚖️ 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 keep it the same (c) we change it
37. 37.🧺 Which of these is not needed for the card-on-a-glass trick? (a) a towel (b) a stiff postcard (c) a magnet (d) a glass of water
38. 38.🔍 Which is the odd one out? (a) a compass needle (b) a magnetic pin holder (c) a suction hook (d) a magnetic chess set
39. 39.🥛 Does a fridge magnet work by air pressure or by magnetism? (a) air pressure (b) magnetism
40. 40.🥛 Which of these works by air pressure? (a) a compass needle (b) a magnetic pin holder (c) a vacuum cleaner (d) a fridge magnet

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