Air Pressure Experiment Worksheet

Science experiments lesson 6: Air pressure: the card on a glass · Set 253 · 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? True or false: how full the glass is is kept the same. (a) False (b) True
2. 2.True or false: a magnetic pin holder works by air pressure. (a) False (b) True
3. 3.🥛 Which of these works by magnetism? (a) a vacuum cleaner (b) a magnetic chess set (c) a drinking straw (d) a medicine dropper
4. 4.🔍 Which is the odd one out? (a) a magnetic pin holder (b) a magnetic chess set (c) a compass needle (d) a suction hook
5. 5.🛟 Why is a plastic cup safer than a glass for small children here? (a) it is heavier (b) it is magnetic (c) it is hotter (d) it will not break
6. 6.⚖️ 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 measure it (c) we change it
7. 7.⚖️ 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
8. 8.⚖️ 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 measure it (c) we keep it the same
9. 9.🧺 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 sink or a bucket (d) a stiff postcard
10. 10.🔍 Which is the odd one out? (a) a fridge magnet (b) a compass needle (c) a magnetic pin holder (d) a vacuum cleaner
11. 11.True or false: a magnet is needed for the card-on-a-glass trick. (a) True (b) False
12. 12.🧺 Which of these is needed for the card-on-a-glass trick? (a) a balloon (b) a sink or a bucket (c) a magnet (d) yeast
13. 13.⚖️ 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) True (b) False
14. 14.🥛 Does a magnetic pin holder work by air pressure or by magnetism? (a) magnetism (b) air pressure
15. 15.🧺 Which of these is not needed for the card-on-a-glass trick? (a) a towel (b) a glass of water (c) a sink or a bucket (d) turmeric powder
16. 16.⚖️ 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 what we measure. (a) True (b) False
17. 17.🔮 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
18. 18.True or false: a sink or a bucket is not needed for the card-on-a-glass trick. (a) False (b) True
19. 19.🧺 Do we need a glass of water for the card-on-a-glass trick? (a) needed (b) not needed
20. 20.🔮 Why do we try the card trick over a sink or a bucket? (a) to grow plants (b) to make it rain (c) to cool the glass (d) to catch any spills
21. 21.🔍 You turn the full glass upside down, holding the card, then let go of the card. What happens? (a) the card stays on (b) the glass breaks (c) the card flies away (d) the water turns to ice
22. 22.⚖️ 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 keep it the same (b) we measure it (c) we change it
23. 23.⚖️ 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) whether the card stays (d) how full the glass is
24. 24.🧺 Three of these are needed for the card-on-a-glass trick. Which one is NOT needed? (a) a towel (b) a balloon (c) a stiff postcard (d) a glass of water
25. 25.True or false: a mirror is not needed for the card-on-a-glass trick. (a) False (b) True
26. 26.🧺 Three of these are needed for the card-on-a-glass trick. Which one is NOT needed? (a) turmeric powder (b) a sink or a bucket (c) a stiff postcard (d) a glass of water
27. 27.🥛 Which of these works by air pressure? (a) a compass needle (b) a vacuum cleaner (c) a magnetic pin holder (d) a magnetic chess set
28. 28.True or false: a fridge magnet works by magnetism. (a) False (b) True
29. 29.🛟 Where should you do the card-and-glass trick? (a) over a laptop (b) on a bed (c) near a plug point (d) over a sink or bucket
30. 30.🥛 Does a bicycle pump work by air pressure or by magnetism? (a) magnetism (b) air pressure
31. 31.True or false: yeast is needed for the card-on-a-glass trick. (a) True (b) False
32. 32.🧺 Which of these is needed for the card-on-a-glass trick? (a) yeast (b) a stiff postcard (c) a balloon (d) turmeric powder
33. 33.🧺 Which of these is not needed for the card-on-a-glass trick? (a) a mirror (b) a stiff postcard (c) a glass of water (d) a towel
34. 34.🥛 Why is it best to fill the glass right to the top? (a) little air left inside (b) water is heavier (c) it looks nicer (d) the card gets wet
35. 35.🥛 Which of these works by magnetism? (a) a vacuum cleaner (b) a medicine dropper (c) a compass needle (d) a bicycle pump
36. 36.🧺 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 glass of water (c) a towel (d) a battery cell
37. 37.📘 Air presses on everything around us. What is this push called? (a) sunlight (b) magnetism (c) air pressure (d) friction
38. 38.⚖️ 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
39. 39.🔍 Which is the odd one out? (a) a compass needle (b) a drinking straw (c) a fridge magnet (d) a magnetic chess set
40. 40.True or false: a bicycle pump works by air pressure. (a) True (b) False

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