Air Pressure Experiment Worksheet

Science experiments lesson 6: Air pressure: the card on a glass · Set 643 · 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 keep it the same (b) we measure it (c) we change it
2. 2.🥛 Which of these works by magnetism? (a) a medicine dropper (b) a suction hook (c) a vacuum cleaner (d) a fridge magnet
3. 3.🧺 Do we need a mirror for the card-on-a-glass trick? (a) needed (b) not needed
4. 4.🧺 Which of these is not needed for the card-on-a-glass trick? (a) turmeric powder (b) a stiff postcard (c) a glass of water (d) a sink or a bucket
5. 5.True or false: a suction hook works by magnetism. (a) True (b) False
6. 6.🛟 Why is a plastic cup safer than a glass for small children here? (a) it will not break (b) it is magnetic (c) it is heavier (d) it is hotter
7. 7.🥛 Does a medicine dropper work by air pressure or by magnetism? (a) magnetism (b) air pressure
8. 8.🧺 Three of these are needed for the card-on-a-glass trick. Which one is NOT needed? (a) a towel (b) a sink or a bucket (c) a magnet (d) a glass of water
9. 9.🔍 Which is the odd one out? (a) a compass needle (b) a magnetic chess set (c) a fridge magnet (d) a suction hook
10. 10.⚖️ 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) the same card (c) whether the card stays
11. 11.🔍 Which is the odd one out? (a) a vacuum cleaner (b) a bicycle pump (c) a fridge magnet (d) a suction hook
12. 12.True or false: a battery cell is not needed for the card-on-a-glass trick. (a) True (b) False
13. 13.🧺 Which of these is needed for the card-on-a-glass trick? (a) a balloon (b) a glass of water (c) a mirror (d) a magnet
14. 14.🧺 Three of these are needed for the card-on-a-glass trick. Which one is NOT needed? (a) turmeric powder (b) a stiff postcard (c) a towel (d) a sink or a bucket
15. 15.🧺 Three of these are needed for the card-on-a-glass trick. Which one is NOT needed? (a) yeast (b) a towel (c) a sink or a bucket (d) a glass of water
16. 16.📘 Air presses on everything around us. What is this push called? (a) friction (b) air pressure (c) sunlight (d) magnetism
17. 17.🔮 Why do we try the card trick over a sink or a bucket? (a) to grow plants (b) to make it rain (c) to catch any spills (d) to cool the glass
18. 18.🧺 Three of these are needed for the card-on-a-glass trick. Which one is NOT needed? (a) a towel (b) a sink or a bucket (c) a battery cell (d) a glass of water
19. 19.⚖️ 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) False (b) True
20. 20.🥛 Does a fridge magnet work by air pressure or by magnetism? (a) magnetism (b) air pressure
21. 21.⚖️ 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 measure it (b) we keep it the same (c) we change it
22. 22.🧺 Do we need a battery cell for the card-on-a-glass trick? (a) not needed (b) needed
23. 23.True or false: a battery cell is needed for the card-on-a-glass trick. (a) True (b) False
24. 24.True or false: a mirror is not 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: whether the card stays 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 same glass is the one thing we change. (a) True (b) False
27. 27.True or false: a bicycle pump works by air pressure. (a) True (b) False
28. 28.True or false: a sink or a bucket is not needed for the card-on-a-glass trick. (a) False (b) True
29. 29.🧺 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 balloon (d) a stiff postcard
30. 30.⚖️ 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) the same glass (c) how full the glass is
31. 31.🔍 You turn the full glass upside down, holding the card, then let go of the card. What happens? (a) the water turns to ice (b) the card flies away (c) the glass breaks (d) the card stays on
32. 32.True or false: a vacuum cleaner works by air pressure. (a) False (b) True
33. 33.⚖️ 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
34. 34.🛟 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
35. 35.🧺 Which of these is needed for the card-on-a-glass trick? (a) a stiff postcard (b) a balloon (c) a mirror (d) a battery cell
36. 36.True or false: a towel is not needed for the card-on-a-glass trick. (a) False (b) True
37. 37.🥤 Why does juice go up a drinking straw when you sip? (a) the straw is magnetic (b) the straw is hot (c) air pushes it up (d) juice likes plastic
38. 38.🧺 Do we need a stiff postcard for the card-on-a-glass trick? (a) not needed (b) needed
39. 39.⚖️ 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
40. 40.🥛 Which of these works by magnetism? (a) a drinking straw (b) a magnetic pin holder (c) a medicine dropper (d) a suction hook

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