Air Pressure Experiment Worksheet

Science experiments lesson 6: Air pressure: the card on a glass · Set 897 · 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: the same glass is what we measure. (a) True (b) False
2. 2.⚖️ 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
3. 3.⚖️ 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 glass (c) the way we turn it (d) the same card
4. 4.🧺 Which of these is not needed for the card-on-a-glass trick? (a) a stiff postcard (b) a sink or a bucket (c) a mirror (d) a glass of water
5. 5.🥛 Does a suction hook work by air pressure or by magnetism? (a) magnetism (b) air pressure
6. 6.🔮 Predict: you squeeze an empty plastic bottle with its cap screwed on tight. Why is it hard? (a) the bottle is magnetic (b) air inside pushes back (c) the cap is sticky (d) water is hiding there
7. 7.🥛 Which of these works by magnetism? (a) a bicycle pump (b) a medicine dropper (c) a magnetic pin holder (d) a vacuum cleaner
8. 8.⚖️ 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 glass (b) whether the card stays (c) how full the glass is
9. 9.True or false: a battery cell 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 what we measure. (a) False (b) True
11. 11.🥛 Does a magnetic chess set work by air pressure or by magnetism? (a) air pressure (b) magnetism
12. 12.🧺 Three of these are needed for the card-on-a-glass trick. Which one is NOT needed? (a) a glass of water (b) a stiff postcard (c) a magnet (d) a sink or a bucket
13. 13.True or false: a drinking straw works by air pressure. (a) False (b) True
14. 14.🧺 Do we need a glass of water for the card-on-a-glass trick? (a) needed (b) not needed
15. 15.🥛 Which of these works by magnetism? (a) a suction hook (b) a medicine dropper (c) a magnetic chess set (d) a bicycle pump
16. 16.🧺 Which of these is not needed for the card-on-a-glass trick? (a) a glass of water (b) a towel (c) a stiff postcard (d) yeast
17. 17.🥛 Does a drinking straw work by air pressure or by magnetism? (a) air pressure (b) magnetism
18. 18.True or false: turmeric powder is needed for the card-on-a-glass trick. (a) False (b) True
19. 19.🧺 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 stiff postcard (d) a glass of water
20. 20.⚖️ 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) how full the glass is (c) the way we turn it
21. 21.🛟 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
22. 22.True or false: a mirror is needed for the card-on-a-glass trick. (a) True (b) False
23. 23.🔍 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 card flies away (c) the water turns to ice (d) the glass breaks
24. 24.True or false: a magnet is needed for the card-on-a-glass trick. (a) False (b) True
25. 25.⚖️ 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
26. 26.🥛 Which of these works by air pressure? (a) a fridge magnet (b) a magnetic chess set (c) a compass needle (d) a bicycle pump
27. 27.🧺 Do we need turmeric powder 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? What do we do with “the way we turn it”? (a) we keep it the same (b) we change it (c) we measure it
29. 29.True or false: a bicycle pump works by magnetism. (a) True (b) False
30. 30.True or false: a sink or a bucket is needed for the card-on-a-glass trick. (a) True (b) False
31. 31.True or false: a suction hook works by magnetism. (a) False (b) True
32. 32.True or false: a balloon is needed for the card-on-a-glass trick. (a) True (b) False
33. 33.🛟 Where should you do the card-and-glass trick? (a) over a sink or bucket (b) on a bed (c) near a plug point (d) over a laptop
34. 34.True or false: a glass of water is needed for the card-on-a-glass trick. (a) True (b) False
35. 35.🧺 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) yeast (d) a towel
36. 36.⚖️ 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) how full the glass is (b) whether the card stays (c) the same card (d) the same glass
37. 37.🧺 Do we need a magnet for the card-on-a-glass trick? (a) not needed (b) needed
38. 38.🥛 Does a magnetic pin holder work by air pressure or by magnetism? (a) magnetism (b) air pressure
39. 39.⚖️ Fair test — does the card stay on with a full glass and with a half-full glass? True or false: the same card is kept the same. (a) False (b) True
40. 40.True or false: a towel is needed for the card-on-a-glass trick. (a) False (b) True

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