Air Pressure Experiment Worksheet

Science experiments lesson 6: Air pressure: the card on a glass · Set 793 · 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 kept the same? (a) how full the glass is (b) whether the card stays (c) the same glass
2. 2.🧺 Do we need a balloon for the card-on-a-glass trick? (a) not needed (b) needed
3. 3.🧺 Three of these are needed for the card-on-a-glass trick. Which one is NOT needed? (a) a stiff postcard (b) a battery cell (c) a towel (d) a glass of water
4. 4.🧺 Which of these is needed for the card-on-a-glass trick? (a) a balloon (b) turmeric powder (c) a magnet (d) a glass of water
5. 5.True or false: a drinking straw works by air pressure. (a) False (b) True
6. 6.🥛 Does a compass needle work by air pressure or by magnetism? (a) air pressure (b) magnetism
7. 7.🥛 Which of these works by magnetism? (a) a suction hook (b) a bicycle pump (c) a vacuum cleaner (d) a magnetic pin holder
8. 8.True or false: turmeric powder is needed for the card-on-a-glass trick. (a) True (b) False
9. 9.🥛 Which of these works by air pressure? (a) a magnetic chess set (b) a magnetic pin holder (c) a compass needle (d) a bicycle pump
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 what we measure. (a) True (b) False
11. 11.🔮 Predict: you squeeze an empty plastic bottle with its cap screwed on tight. Why is it hard? (a) the cap is sticky (b) the bottle is magnetic (c) air inside pushes back (d) water is hiding there
12. 12.🥛 Does a drinking straw work by air pressure or by magnetism? (a) magnetism (b) air pressure
13. 13.🛟 Why is a plastic cup safer than a glass for small children here? (a) it is magnetic (b) it will not break (c) it is heavier (d) it is hotter
14. 14.🧺 Do we need turmeric powder for the card-on-a-glass trick? (a) not needed (b) needed
15. 15.🔍 Which is the odd one out? (a) a drinking straw (b) a suction hook (c) a fridge magnet (d) a vacuum cleaner
16. 16.True or false: a towel is not needed for the card-on-a-glass trick. (a) False (b) True
17. 17.🧺 Which of these is not needed for the card-on-a-glass trick? (a) a sink or a bucket (b) a stiff postcard (c) turmeric powder (d) a glass of water
18. 18.⚖️ 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 same card (b) whether the card stays (c) how full the glass is (d) the same glass
19. 19.True or false: a magnetic chess set works by air pressure. (a) True (b) False
20. 20.True or false: a stiff postcard is not needed for the card-on-a-glass trick. (a) False (b) True
21. 21.True or false: a bicycle pump works by magnetism. (a) True (b) False
22. 22.⚖️ 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) the way we turn it
23. 23.🥛 Why is it best to fill the glass right to the top? (a) water is heavier (b) little air left inside (c) it looks nicer (d) the card gets wet
24. 24.🥤 Why does juice go up a drinking straw when you sip? (a) air pushes it up (b) the straw is hot (c) the straw is magnetic (d) juice likes plastic
25. 25.🔍 Which is the odd one out? (a) a vacuum cleaner (b) a magnetic pin holder (c) a suction hook (d) a drinking straw
26. 26.🧺 Which of these is not needed for the card-on-a-glass trick? (a) a magnet (b) a towel (c) a stiff postcard (d) a glass of water
27. 27.⚖️ Fair test — does the card stay on with a full glass and with a half-full glass? True or false: the same card is what we measure. (a) False (b) True
28. 28.True or false: a sink or a bucket is needed for the card-on-a-glass trick. (a) True (b) False
29. 29.🥛 Which of these works by air pressure? (a) a suction hook (b) a magnetic pin holder (c) a magnetic chess set (d) a fridge magnet
30. 30.🧺 Do we need a mirror for the card-on-a-glass trick? (a) needed (b) not needed
31. 31.True or false: a magnet is not needed for the card-on-a-glass trick. (a) False (b) True
32. 32.True or false: yeast is needed for the card-on-a-glass trick. (a) True (b) False
33. 33.⚖️ 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 change it (b) we measure it (c) we keep it the same
34. 34.🔮 Predict: you blow up a balloon. What fills it? (a) water (b) air (c) sand (d) smoke
35. 35.🧺 Three of these are needed for the card-on-a-glass trick. Which one is NOT needed? (a) a glass of water (b) yeast (c) a sink or a bucket (d) a towel
36. 36.True or false: a bicycle pump works by air pressure. (a) False (b) True
37. 37.⚖️ 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 measure it (b) we keep it the same (c) we change it
38. 38.🧺 Do we need a towel for the card-on-a-glass trick? (a) needed (b) not needed
39. 39.🛟 Where should you do the card-and-glass trick? (a) near a plug point (b) over a sink or bucket (c) over a laptop (d) on a bed
40. 40.🧺 Which of these is needed for the card-on-a-glass trick? (a) yeast (b) a sink or a bucket (c) a magnet (d) a balloon

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