Air Pressure Experiment Worksheet

Science experiments lesson 6: Air pressure: the card on a glass · Set 522 · 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.🥛 What holds the card up against the upside-down glass? (a) a magnet (b) glue on the card (c) the cold water (d) air pushing up
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 keep it the same (b) we change it (c) we measure it
3. 3.🧺 Do we need a stiff postcard for the card-on-a-glass trick? (a) needed (b) not needed
4. 4.🔮 Why do we try the card trick over a sink or a bucket? (a) to grow plants (b) to catch any spills (c) to cool the glass (d) to make it rain
5. 5.🧺 Do we need a balloon for the card-on-a-glass trick? (a) needed (b) not needed
6. 6.🥛 Which of these works by magnetism? (a) a magnetic chess set (b) a bicycle pump (c) a vacuum cleaner (d) a medicine dropper
7. 7.⚖️ 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 the one thing we change. (a) True (b) False
8. 8.⚖️ 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
9. 9.🧺 Three of these are needed for the card-on-a-glass trick. Which one is NOT needed? (a) a towel (b) a mirror (c) a stiff postcard (d) a glass of water
10. 10.⚖️ 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 glass (b) whether the card stays (c) the same card (d) the way we turn it
11. 11.🔍 Which is the odd one out? (a) a bicycle pump (b) a fridge magnet (c) a magnetic chess set (d) a magnetic pin holder
12. 12.🥛 Does a magnetic chess set work by air pressure or by magnetism? (a) air pressure (b) magnetism
13. 13.⚖️ 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 change it (b) we measure it (c) we keep it the same
14. 14.🔍 Which is the odd one out? (a) a medicine dropper (b) a magnetic chess set (c) a bicycle pump (d) a drinking straw
15. 15.⚖️ 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 kept the same. (a) True (b) False
16. 16.⚖️ 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 change it (c) we keep it the same
17. 17.📘 Air presses on everything around us. What is this push called? (a) sunlight (b) magnetism (c) friction (d) air pressure
18. 18.🧺 Which of these is needed for the card-on-a-glass trick? (a) a magnet (b) a mirror (c) yeast (d) a towel
19. 19.🔍 Which is the odd one out? (a) a medicine dropper (b) a fridge magnet (c) a vacuum cleaner (d) a bicycle pump
20. 20.True or false: a sink or a bucket is needed for the card-on-a-glass trick. (a) False (b) True
21. 21.🧺 Three of these are needed for the card-on-a-glass trick. Which one is NOT needed? (a) a towel (b) a glass of water (c) a sink or a bucket (d) a balloon
22. 22.🛟 Where should you do the card-and-glass trick? (a) over a laptop (b) near a plug point (c) on a bed (d) over a sink or bucket
23. 23.🥛 Which of these works by air pressure? (a) a compass needle (b) a magnetic pin holder (c) a fridge magnet (d) a vacuum cleaner
24. 24.🥛 Does a compass needle work by air pressure or by magnetism? (a) air pressure (b) magnetism
25. 25.⚖️ 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
26. 26.🧺 Do we need a towel for the card-on-a-glass trick? (a) needed (b) not needed
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) the cap is sticky (c) water is hiding there (d) air inside pushes back
28. 28.🧺 Which of these is needed for the card-on-a-glass trick? (a) turmeric powder (b) a battery cell (c) a sink or a bucket (d) yeast
29. 29.True or false: a vacuum cleaner works by magnetism. (a) True (b) False
30. 30.True or false: a suction hook works by air pressure. (a) True (b) False
31. 31.🧺 Which of these is not needed for the card-on-a-glass trick? (a) a stiff postcard (b) a glass of water (c) a sink or a bucket (d) a balloon
32. 32.True or false: a fridge magnet works by magnetism. (a) False (b) True
33. 33.⚖️ 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 change it (b) we measure it (c) we keep it the same
34. 34.True or false: a towel is not needed for the card-on-a-glass trick. (a) True (b) False
35. 35.🧺 Do we need a battery cell for the card-on-a-glass trick? (a) needed (b) not needed
36. 36.🔍 Which is the odd one out? (a) a magnetic pin holder (b) a fridge magnet (c) a magnetic chess set (d) a vacuum cleaner
37. 37.🧺 Which of these is needed for the card-on-a-glass trick? (a) a balloon (b) yeast (c) a stiff postcard (d) turmeric powder
38. 38.🧺 Which of these is needed for the card-on-a-glass trick? (a) a mirror (b) a glass of water (c) yeast (d) a battery cell
39. 39.True or false: a magnetic pin holder works by air pressure. (a) True (b) False
40. 40.⚖️ 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 glass (c) the same card (d) how full the glass is

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