Air Pressure Experiment Worksheet

Science experiments lesson 6: Air pressure: the card on a glass · Set 957 · 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 “how full the glass is”? (a) we change it (b) we measure it (c) we keep it the same
2. 2.🧺 Do we need a mirror for the card-on-a-glass trick? (a) not needed (b) needed
3. 3.True or false: a battery cell is needed for the card-on-a-glass trick. (a) False (b) True
4. 4.🛟 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
5. 5.True or false: a bicycle pump works by magnetism. (a) True (b) False
6. 6.🥛 Which of these works by air pressure? (a) a compass needle (b) a fridge magnet (c) a magnetic pin holder (d) a drinking straw
7. 7.⚖️ 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 way we turn it (c) the same glass (d) how full the glass is
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 sink or a bucket (c) yeast (d) a towel
9. 9.⚖️ 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 way we turn it (b) the same card (c) the same glass (d) how full the glass is
10. 10.🔍 Which is the odd one out? (a) a suction hook (b) a magnetic chess set (c) a fridge magnet (d) a magnetic pin holder
11. 11.⚖️ 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
12. 12.🧺 Do we need turmeric powder for the card-on-a-glass trick? (a) not needed (b) needed
13. 13.⚖️ 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 same card (b) whether the card stays (c) how full the glass is
14. 14.⚖️ 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
15. 15.🔍 Which is the odd one out? (a) a medicine dropper (b) a vacuum cleaner (c) a compass needle (d) a drinking straw
16. 16.🧺 Which of these is needed for the card-on-a-glass trick? (a) turmeric powder (b) a mirror (c) a glass of water (d) a magnet
17. 17.🧺 Do we need a balloon for the card-on-a-glass trick? (a) needed (b) not needed
18. 18.🔍 Which is the odd one out? (a) a magnetic chess set (b) a vacuum cleaner (c) a compass needle (d) a fridge magnet
19. 19.🧺 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 battery cell (c) a stiff postcard (d) a glass of water
20. 20.🧺 Do we need a glass of water for the card-on-a-glass trick? (a) needed (b) not needed
21. 21.True or false: a compass needle works by magnetism. (a) False (b) True
22. 22.🛟 Where should you do the card-and-glass trick? (a) on a bed (b) near a plug point (c) over a sink or bucket (d) over a laptop
23. 23.🧺 Which of these is needed for the card-on-a-glass trick? (a) yeast (b) a sink or a bucket (c) a balloon (d) turmeric powder
24. 24.🥛 Does a medicine dropper work by air pressure or by magnetism? (a) magnetism (b) air pressure
25. 25.True or false: a magnet is 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) a glass of water (b) a sink or a bucket (c) a mirror (d) a stiff postcard
27. 27.🔮 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
28. 28.True or false: a bicycle pump works by air pressure. (a) True (b) False
29. 29.True or false: a drinking straw works by magnetism. (a) False (b) True
30. 30.🔮 Predict: you blow up a balloon. What fills it? (a) sand (b) smoke (c) water (d) air
31. 31.🥛 Does a vacuum cleaner work by air pressure or by magnetism? (a) air pressure (b) magnetism
32. 32.🔍 You turn the full glass upside down, holding the card, then let go of the card. What happens? (a) the card flies away (b) the water turns to ice (c) the glass breaks (d) the card stays on
33. 33.🧺 Do we need a magnet for the card-on-a-glass trick? (a) needed (b) not needed
34. 34.⚖️ 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
35. 35.⚖️ Fair test — does the card stay on with a full glass and with a half-full glass? True or false: the same glass is kept the same. (a) True (b) False
36. 36.🥛 Which of these works by air pressure? (a) a compass needle (b) a bicycle pump (c) a magnetic pin holder (d) a fridge magnet
37. 37.🧺 Do we need a battery cell for the card-on-a-glass trick? (a) needed (b) not needed
38. 38.True or false: a medicine dropper works by magnetism. (a) False (b) True
39. 39.🧺 Which of these is not needed for the card-on-a-glass trick? (a) a balloon (b) a glass of water (c) a stiff postcard (d) a sink or a bucket
40. 40.🥛 Which of these works by air pressure? (a) a magnetic pin holder (b) a vacuum cleaner (c) a fridge magnet (d) a compass needle

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