Air Pressure Experiment Worksheet

Science experiments lesson 6: Air pressure: the card on a glass · Set 803 · 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.🧺 Which of these is not needed for the card-on-a-glass trick? (a) a sink or a bucket (b) a towel (c) a balloon (d) a stiff postcard
2. 2.🧺 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 sink or a bucket
3. 3.🧺 Three of these are needed for the card-on-a-glass trick. Which one is NOT needed? (a) a stiff postcard (b) turmeric powder (c) a glass of water (d) a towel
4. 4.True or false: a magnetic chess set works by magnetism. (a) False (b) True
5. 5.⚖️ 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 same glass (b) how full the glass is (c) whether the card stays (d) the same card
6. 6.True or false: a fridge magnet works by air pressure. (a) True (b) False
7. 7.⚖️ 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) True (b) False
8. 8.⚖️ 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
9. 9.🧺 Do we need a glass of water for the card-on-a-glass trick? (a) needed (b) not needed
10. 10.🔮 Predict: you squeeze an empty plastic bottle with its cap screwed on tight. Why is it hard? (a) the cap is sticky (b) air inside pushes back (c) the bottle is magnetic (d) water is hiding there
11. 11.⚖️ 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 card (b) the same glass (c) whether the card stays (d) how full the glass is
12. 12.🧺 Which of these is needed for the card-on-a-glass trick? (a) turmeric powder (b) a towel (c) a mirror (d) a balloon
13. 13.📘 Air presses on everything around us. What is this push called? (a) friction (b) sunlight (c) magnetism (d) air pressure
14. 14.🛟 Where should you do the card-and-glass trick? (a) on a bed (b) over a laptop (c) near a plug point (d) over a sink or bucket
15. 15.🥛 Does a magnetic pin holder work by air pressure or by magnetism? (a) air pressure (b) magnetism
16. 16.🔍 Which is the odd one out? (a) a magnetic pin holder (b) a compass needle (c) a vacuum cleaner (d) a fridge magnet
17. 17.🛟 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
18. 18.🔍 Which is the odd one out? (a) a medicine dropper (b) a magnetic pin holder (c) a drinking straw (d) a suction hook
19. 19.🔮 Predict: you blow up a balloon. What fills it? (a) sand (b) air (c) smoke (d) water
20. 20.🔮 Why do we try the card trick over a sink or a bucket? (a) to catch any spills (b) to cool the glass (c) to make it rain (d) to grow plants
21. 21.True or false: a magnetic pin holder works by air pressure. (a) False (b) True
22. 22.True or false: a towel is not needed for the card-on-a-glass trick. (a) True (b) False
23. 23.⚖️ 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 keep it the same (c) we measure it
24. 24.True or false: a stiff postcard is not needed for the card-on-a-glass trick. (a) False (b) True
25. 25.🔍 Which is the odd one out? (a) a suction hook (b) a medicine dropper (c) a fridge magnet (d) a vacuum cleaner
26. 26.🥤 Why does juice go up a drinking straw when you sip? (a) juice likes plastic (b) the straw is magnetic (c) the straw is hot (d) air pushes it up
27. 27.True or false: a mirror is needed for the card-on-a-glass trick. (a) True (b) False
28. 28.🧺 Three of these are needed for the card-on-a-glass trick. Which one is NOT needed? (a) yeast (b) a sink or a bucket (c) a towel (d) a stiff postcard
29. 29.⚖️ Fair test — does the card stay on with a full glass and with a half-full glass? True or false: the same card is the one thing we change. (a) True (b) False
30. 30.🥛 Does a suction hook work by air pressure or by magnetism? (a) magnetism (b) air pressure
31. 31.🧺 Which of these is not needed for the card-on-a-glass trick? (a) a mirror (b) a sink or a bucket (c) a stiff postcard (d) a glass of water
32. 32.⚖️ 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 same card
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 what we measure. (a) True (b) False
34. 34.🧺 Do we need a sink or a bucket for the card-on-a-glass trick? (a) not needed (b) needed
35. 35.⚖️ 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 keep it the same (b) we change it (c) we measure it
36. 36.⚖️ 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 the one thing we change. (a) True (b) False
37. 37.🥛 Does a bicycle pump work by air pressure or by magnetism? (a) magnetism (b) air pressure
38. 38.🥛 Which of these works by magnetism? (a) a drinking straw (b) a bicycle pump (c) a vacuum cleaner (d) a compass needle
39. 39.🧺 Do we need a battery cell for the card-on-a-glass trick? (a) not needed (b) needed
40. 40.🔍 Which is the odd one out? (a) a drinking straw (b) a magnetic pin holder (c) a magnetic chess set (d) a compass needle

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