Air Pressure Experiment Worksheet

Science experiments lesson 6: Air pressure: the card on a glass · Set 104 · 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.🥛 Does a suction hook work by air pressure or by magnetism? (a) magnetism (b) air pressure
2. 2.🥛 Which of these works by magnetism? (a) a suction hook (b) a drinking straw (c) a fridge magnet (d) a medicine dropper
3. 3.⚖️ 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 glass (b) the same card (c) how full the glass is (d) whether the card stays
4. 4.⚖️ 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 keep it the same (b) we change it (c) we measure it
5. 5.🛟 Where should you do the card-and-glass trick? (a) on a bed (b) over a laptop (c) over a sink or bucket (d) near a plug point
6. 6.🥤 Why does juice go up a drinking straw when you sip? (a) the straw is hot (b) air pushes it up (c) juice likes plastic (d) the straw is magnetic
7. 7.True or false: a bicycle pump works by air pressure. (a) True (b) False
8. 8.🧺 Three of these are needed for the card-on-a-glass trick. Which one is NOT needed? (a) a glass of water (b) a mirror (c) a sink or a bucket (d) a stiff postcard
9. 9.True or false: turmeric powder is not needed for the card-on-a-glass trick. (a) False (b) True
10. 10.⚖️ 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 kept the same. (a) False (b) True
11. 11.🧺 Do we need a stiff postcard for the card-on-a-glass trick? (a) not needed (b) needed
12. 12.🛟 Why is a plastic cup safer than a glass for small children here? (a) it will not break (b) it is magnetic (c) it is hotter (d) it is heavier
13. 13.🔮 Why do we try the card trick over a sink or a bucket? (a) to make it rain (b) to catch any spills (c) to cool the glass (d) to grow plants
14. 14.🔮 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) air inside pushes back (d) water is hiding there
15. 15.True or false: a suction hook works by air pressure. (a) False (b) True
16. 16.🧺 Three of these are needed for the card-on-a-glass trick. Which one is NOT needed? (a) a towel (b) a glass of water (c) a stiff postcard (d) a balloon
17. 17.⚖️ Fair test — does the card stay on with a full glass and with a half-full glass? True or false: the same glass is the one thing we change. (a) False (b) True
18. 18.⚖️ 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) how full the glass is (c) whether the card stays
19. 19.⚖️ 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
20. 20.🧺 Which of these is not needed for the card-on-a-glass trick? (a) a towel (b) yeast (c) a glass of water (d) a sink or a bucket
21. 21.🧺 Do we need a magnet for the card-on-a-glass trick? (a) not needed (b) needed
22. 22.🥛 Why is it best to fill the glass right to the top? (a) water is heavier (b) it looks nicer (c) the card gets wet (d) little air left inside
23. 23.🥛 Does a magnetic chess set 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? What do we do with “the way we turn it”? (a) we change it (b) we measure it (c) we keep it the same
25. 25.🧺 Do we need a glass of water for the card-on-a-glass trick? (a) not needed (b) needed
26. 26.🧺 Which of these is needed for the card-on-a-glass trick? (a) a magnet (b) yeast (c) a stiff postcard (d) turmeric powder
27. 27.🧺 Do we need a mirror for the card-on-a-glass trick? (a) not needed (b) needed
28. 28.⚖️ 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 kept the same. (a) False (b) True
29. 29.True or false: a vacuum cleaner works by magnetism. (a) True (b) False
30. 30.🧺 Three of these are needed for the card-on-a-glass trick. Which one is NOT needed? (a) a battery cell (b) a sink or a bucket (c) a glass of water (d) a towel
31. 31.🧺 Do we need a sink or a bucket for the card-on-a-glass trick? (a) not needed (b) needed
32. 32.🥛 Which of these works by air pressure? (a) a vacuum cleaner (b) a compass needle (c) a magnetic chess set (d) a fridge magnet
33. 33.🧺 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 towel (c) a stiff postcard (d) a magnet
34. 34.🥛 Does a fridge magnet work by air pressure or by magnetism? (a) air pressure (b) magnetism
35. 35.⚖️ Fair test — does the card stay on with a full glass and with a half-full glass? True or false: the same card is the one thing we change. (a) True (b) False
36. 36.🥛 Does a magnetic pin holder work by air pressure or by magnetism? (a) magnetism (b) air pressure
37. 37.True or false: a mirror is needed for the card-on-a-glass trick. (a) True (b) False
38. 38.True or false: a magnetic pin holder works by air pressure. (a) True (b) False
39. 39.🧺 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 stiff postcard (d) a towel
40. 40.🧺 Which of these is not needed for the card-on-a-glass trick? (a) a glass of water (b) a magnet (c) a stiff postcard (d) a sink or a bucket

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