Air Pressure Experiment Worksheet

Science experiments lesson 6: Air pressure: the card on a glass · Set 896 · 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 “the same glass”? (a) we measure it (b) we keep it the same (c) we change it
2. 2.True or false: a compass needle works by air pressure. (a) True (b) False
3. 3.🧺 Which of these is not needed for the card-on-a-glass trick? (a) a glass of water (b) a towel (c) a sink or a bucket (d) turmeric powder
4. 4.🧺 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
5. 5.📘 Air presses on everything around us. What is this push called? (a) friction (b) air pressure (c) sunlight (d) magnetism
6. 6.🧺 Do we need a battery cell for the card-on-a-glass trick? (a) needed (b) not needed
7. 7.True or false: a suction hook works by magnetism. (a) True (b) False
8. 8.🧺 Do we need a glass of water for the card-on-a-glass trick? (a) not needed (b) needed
9. 9.🔮 Why do we try the card trick over a sink or a bucket? (a) to cool the glass (b) to grow plants (c) to make it rain (d) to catch any spills
10. 10.🔮 Predict: you blow up a balloon. What fills it? (a) water (b) sand (c) air (d) smoke
11. 11.🧺 Do we need a balloon for the card-on-a-glass trick? (a) needed (b) not needed
12. 12.🔍 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 card stays on (c) the water turns to ice (d) the glass breaks
13. 13.🧺 Which of these is needed for the card-on-a-glass trick? (a) turmeric powder (b) a sink or a bucket (c) a balloon (d) a magnet
14. 14.True or false: a magnet is not needed for the card-on-a-glass trick. (a) True (b) False
15. 15.🧺 Do we need yeast for the card-on-a-glass trick? (a) not needed (b) needed
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.⚖️ 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 measure it (b) we change it (c) we keep it the same
18. 18.🥤 Why does juice go up a drinking straw when you sip? (a) the straw is hot (b) juice likes plastic (c) the straw is magnetic (d) air pushes it up
19. 19.True or false: turmeric powder is not needed for the card-on-a-glass trick. (a) True (b) False
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) how full the glass is (b) whether the card stays (c) the same card
21. 21.🧺 Which of these is needed for the card-on-a-glass trick? (a) a magnet (b) a battery cell (c) a balloon (d) a stiff postcard
22. 22.🧺 Do we need turmeric powder for the card-on-a-glass trick? (a) not needed (b) needed
23. 23.True or false: a suction hook works by air pressure. (a) True (b) False
24. 24.True or false: turmeric powder 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? Which of these is what we measure? (a) the way we turn it (b) whether the card stays (c) the same glass (d) how full the glass is
26. 26.True or false: a bicycle pump works by magnetism. (a) True (b) False
27. 27.🛟 Where should you do the card-and-glass trick? (a) over a laptop (b) near a plug point (c) over a sink or bucket (d) on a bed
28. 28.🔍 Which is the odd one out? (a) a suction hook (b) a compass needle (c) a fridge magnet (d) a magnetic chess set
29. 29.🥛 Does a vacuum cleaner work by air pressure or by magnetism? (a) air pressure (b) magnetism
30. 30.🔍 Which is the odd one out? (a) a bicycle pump (b) a magnetic pin holder (c) a compass needle (d) a fridge magnet
31. 31.🧺 Do we need a stiff postcard for the card-on-a-glass trick? (a) needed (b) not needed
32. 32.🥛 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
33. 33.🧺 Three of these are needed for the card-on-a-glass trick. Which one is NOT needed? (a) a stiff postcard (b) a towel (c) a sink or a bucket (d) turmeric powder
34. 34.🧺 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 glass of water (d) a battery cell
35. 35.🥛 Does a suction hook work by air pressure or by magnetism? (a) air pressure (b) magnetism
36. 36.True or false: a vacuum cleaner works by magnetism. (a) True (b) False
37. 37.🧺 Three of these are needed for the card-on-a-glass trick. Which one is NOT needed? (a) a stiff postcard (b) a glass of water (c) a mirror (d) a towel
38. 38.True or false: a balloon is not needed for the card-on-a-glass trick. (a) True (b) False
39. 39.🧺 Which of these is not needed for the card-on-a-glass trick? (a) a towel (b) yeast (c) a glass of water (d) a stiff postcard
40. 40.🥛 Which of these works by air pressure? (a) a compass needle (b) a magnetic pin holder (c) a magnetic chess set (d) a drinking straw

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