Air Pressure Experiment Worksheet

Science experiments lesson 6: Air pressure: the card on a glass · Set 98 · 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? 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
2. 2.🧺 Three of these are needed for the card-on-a-glass trick. Which one is NOT needed? (a) a stiff postcard (b) a towel (c) a sink or a bucket (d) a balloon
3. 3.True or false: a compass needle works by magnetism. (a) False (b) True
4. 4.🔮 Why do we try the card trick over a sink or a bucket? (a) to cool the glass (b) to grow plants (c) to make it rain (d) to catch any spills
5. 5.🥛 Does a suction hook work by air pressure or by magnetism? (a) magnetism (b) air pressure
6. 6.⚖️ 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) whether the card stays (b) the same card (c) the way we turn it (d) how full the glass is
7. 7.⚖️ Fair test — does the card stay on with a full glass and with a half-full glass? True or false: whether the card stays is the one thing we change. (a) False (b) True
8. 8.🧺 Do we need a sink or a bucket for the card-on-a-glass trick? (a) needed (b) not needed
9. 9.🧺 Which of these is not needed for the card-on-a-glass trick? (a) a battery cell (b) a towel (c) a sink or a bucket (d) a glass of water
10. 10.🔍 Which is the odd one out? (a) a fridge magnet (b) a suction hook (c) a drinking straw (d) a medicine dropper
11. 11.🔮 Predict: you squeeze an empty plastic bottle with its cap screwed on tight. Why is it hard? (a) water is hiding there (b) air inside pushes back (c) the bottle is magnetic (d) the cap is sticky
12. 12.🧺 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 battery cell (d) a towel
13. 13.True or false: a battery cell is needed for the card-on-a-glass trick. (a) True (b) False
14. 14.True or false: a magnetic chess set works by magnetism. (a) True (b) False
15. 15.🥛 Which of these works by magnetism? (a) a drinking straw (b) a magnetic chess set (c) a vacuum cleaner (d) a bicycle pump
16. 16.🧺 Which of these is needed for the card-on-a-glass trick? (a) a sink or a bucket (b) a balloon (c) turmeric powder (d) a magnet
17. 17.True or false: a glass of water is not needed for the card-on-a-glass trick. (a) False (b) True
18. 18.🔮 Predict: you blow up a balloon. What fills it? (a) air (b) water (c) sand (d) smoke
19. 19.🥛 Which of these works by magnetism? (a) a suction hook (b) a medicine dropper (c) a compass needle (d) a vacuum cleaner
20. 20.⚖️ 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
21. 21.🥤 Why does juice go up a drinking straw when you sip? (a) juice likes plastic (b) air pushes it up (c) the straw is magnetic (d) the straw is hot
22. 22.⚖️ 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
23. 23.True or false: a magnetic pin holder works by magnetism. (a) False (b) True
24. 24.🧺 Which of these is not needed for the card-on-a-glass trick? (a) a towel (b) a sink or a bucket (c) a glass of water (d) yeast
25. 25.⚖️ 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) False (b) True
26. 26.⚖️ 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) True (b) False
27. 27.True or false: a bicycle pump works by magnetism. (a) False (b) True
28. 28.📘 Air presses on everything around us. What is this push called? (a) magnetism (b) air pressure (c) sunlight (d) friction
29. 29.🥛 Does a bicycle pump work by air pressure or by magnetism? (a) air pressure (b) magnetism
30. 30.🥛 Does a medicine dropper work by air pressure or by magnetism? (a) air pressure (b) magnetism
31. 31.True or false: a balloon is not needed for the card-on-a-glass trick. (a) True (b) False
32. 32.True or false: a vacuum cleaner works by magnetism. (a) True (b) False
33. 33.True or false: a medicine dropper works by magnetism. (a) False (b) True
34. 34.True or false: a mirror is not needed for the card-on-a-glass trick. (a) True (b) False
35. 35.🔍 Which is the odd one out? (a) a compass needle (b) a bicycle pump (c) a fridge magnet (d) a magnetic pin holder
36. 36.🥛 Which of these works by magnetism? (a) a fridge magnet (b) a bicycle pump (c) a vacuum cleaner (d) a suction hook
37. 37.🥛 Which of these works by air pressure? (a) a compass needle (b) a fridge magnet (c) a magnetic chess set (d) a bicycle pump
38. 38.True or false: a magnetic chess set works by air pressure. (a) True (b) False
39. 39.🛟 Why is a plastic cup safer than a glass for small children here? (a) it is magnetic (b) it is hotter (c) it is heavier (d) it will not break
40. 40.🥛 Which of these works by air pressure? (a) a magnetic pin holder (b) a fridge magnet (c) a magnetic chess set (d) a medicine dropper

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