Air Pressure Experiment Worksheet

Science experiments lesson 6: Air pressure: the card on a glass · Set 447 · 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.⚖️ 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
2. 2.⚖️ 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
3. 3.🥛 Which of these works by air pressure? (a) a compass needle (b) a fridge magnet (c) a magnetic pin holder (d) a medicine dropper
4. 4.⚖️ 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 keep it the same (b) we measure it (c) we change it
5. 5.🥛 Does a compass needle work by air pressure or by magnetism? (a) magnetism (b) air pressure
6. 6.🧺 Do we need a glass of water for the card-on-a-glass trick? (a) not needed (b) needed
7. 7.🔍 Which is the odd one out? (a) a medicine dropper (b) a suction hook (c) a bicycle pump (d) a compass needle
8. 8.🥛 Does a bicycle pump work by air pressure or by magnetism? (a) air pressure (b) magnetism
9. 9.🛟 Where should you do the card-and-glass trick? (a) on a bed (b) near a plug point (c) over a laptop (d) over a sink or bucket
10. 10.⚖️ 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
11. 11.🔮 Why do we try the card trick over a sink or a bucket? (a) to make it rain (b) to grow plants (c) to cool the glass (d) to catch any spills
12. 12.🔍 Which is the odd one out? (a) a suction hook (b) a fridge magnet (c) a magnetic chess set (d) a magnetic pin holder
13. 13.True or false: a bicycle pump works by magnetism. (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 battery cell (d) a sink or a bucket
15. 15.True or false: a battery cell is needed for the card-on-a-glass trick. (a) True (b) False
16. 16.🔍 You turn the full glass upside down, holding the card, then let go of the card. What happens? (a) the glass breaks (b) the water turns to ice (c) the card stays on (d) the card flies away
17. 17.🔍 Which is the odd one out? (a) a magnetic pin holder (b) a vacuum cleaner (c) a medicine dropper (d) a suction hook
18. 18.🧺 Do we need turmeric powder for the card-on-a-glass trick? (a) needed (b) not needed
19. 19.🥤 Why does juice go up a drinking straw when you sip? (a) the straw is magnetic (b) air pushes it up (c) juice likes plastic (d) the straw is hot
20. 20.🧺 Do we need a sink or a bucket for the card-on-a-glass trick? (a) not needed (b) needed
21. 21.🔮 Predict: you blow up a balloon. What fills it? (a) air (b) smoke (c) water (d) sand
22. 22.🧺 Do we need yeast for the card-on-a-glass trick? (a) not needed (b) needed
23. 23.🥛 Does a medicine dropper work by air pressure or by magnetism? (a) magnetism (b) air pressure
24. 24.⚖️ 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 card
25. 25.🥛 Does a vacuum cleaner work by air pressure or by magnetism? (a) magnetism (b) air pressure
26. 26.True or false: yeast is not needed for the card-on-a-glass trick. (a) True (b) False
27. 27.⚖️ Fair test — does the card stay on with a full glass and with a half-full glass? What do we do with “whether the card stays”? (a) we measure it (b) we keep it the same (c) we change it
28. 28.🔍 Which is the odd one out? (a) a compass needle (b) a fridge magnet (c) a bicycle pump (d) a magnetic pin holder
29. 29.🧺 Which of these is needed for the card-on-a-glass trick? (a) a balloon (b) turmeric powder (c) a towel (d) a magnet
30. 30.⚖️ 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
31. 31.🛟 Why is a plastic cup safer than a glass for small children here? (a) it is heavier (b) it will not break (c) it is hotter (d) it is magnetic
32. 32.True or false: a balloon is not needed for the card-on-a-glass trick. (a) True (b) False
33. 33.🧺 Which of these is needed for the card-on-a-glass trick? (a) a glass of water (b) turmeric powder (c) a mirror (d) a battery cell
34. 34.🧺 Do we need a mirror for the card-on-a-glass trick? (a) not needed (b) needed
35. 35.🥛 Why is it best to fill the glass right to the top? (a) water is heavier (b) the card gets wet (c) little air left inside (d) it looks nicer
36. 36.🧺 Three of these are needed for the card-on-a-glass trick. Which one is NOT needed? (a) a glass of water (b) a stiff postcard (c) a sink or a bucket (d) yeast
37. 37.🧺 Which of these is not needed for the card-on-a-glass trick? (a) a towel (b) a stiff postcard (c) a glass of water (d) a mirror
38. 38.🔮 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) air inside pushes back (d) the cap is sticky
39. 39.⚖️ Fair test — does the card stay on with a full glass and with a half-full glass? True or false: the same glass is what we measure. (a) True (b) False
40. 40.🥛 Does a suction hook work by air pressure or by magnetism? (a) air pressure (b) magnetism

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