Air Pressure Experiment Worksheet

Science experiments lesson 6: Air pressure: the card on a glass · Set 198 · 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 works by magnetism? (a) a suction hook (b) a magnetic chess set (c) a bicycle pump (d) a vacuum cleaner
2. 2.🥛 Which of these works by magnetism? (a) a compass needle (b) a suction hook (c) a medicine dropper (d) a vacuum cleaner
3. 3.True or false: a magnetic pin holder works by magnetism. (a) False (b) True
4. 4.⚖️ 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) how full the glass is (d) whether the card stays
5. 5.True or false: a drinking straw works by magnetism. (a) True (b) False
6. 6.🥛 Does a vacuum cleaner work by air pressure or by magnetism? (a) magnetism (b) air pressure
7. 7.🧺 Do we need a stiff postcard for the card-on-a-glass trick? (a) not needed (b) needed
8. 8.🛟 Where should you do the card-and-glass trick? (a) near a plug point (b) on a bed (c) over a laptop (d) over a sink or bucket
9. 9.⚖️ 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 way we turn it (c) whether the card stays
10. 10.🧺 Do we need a sink or a bucket for the card-on-a-glass trick? (a) needed (b) not needed
11. 11.🧺 Do we need a magnet for the card-on-a-glass trick? (a) not needed (b) needed
12. 12.⚖️ 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 measure it (c) we change it
13. 13.📘 Air presses on everything around us. What is this push called? (a) magnetism (b) friction (c) sunlight (d) air pressure
14. 14.True or false: a towel is needed for the card-on-a-glass trick. (a) True (b) False
15. 15.🥛 Which of these works by air pressure? (a) a magnetic chess set (b) a fridge magnet (c) a compass needle (d) a medicine dropper
16. 16.⚖️ 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
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 same glass”? (a) we measure it (b) we keep it the same (c) we change it
18. 18.🧺 Which of these is needed for the card-on-a-glass trick? (a) a balloon (b) a mirror (c) a magnet (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 same glass is the one thing we change. (a) True (b) False
20. 20.⚖️ 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
21. 21.🧺 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 stiff postcard (d) turmeric powder
22. 22.⚖️ 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) False (b) True
23. 23.True or false: yeast is needed for the card-on-a-glass trick. (a) True (b) False
24. 24.🧺 Do we need yeast for the card-on-a-glass trick? (a) not needed (b) needed
25. 25.🛟 Why is a plastic cup safer than a glass for small children here? (a) it is hotter (b) it will not break (c) it is magnetic (d) it is heavier
26. 26.🔮 Predict: you squeeze an empty plastic bottle with its cap screwed on tight. Why is it hard? (a) air inside pushes back (b) water is hiding there (c) the bottle is magnetic (d) the cap is sticky
27. 27.🧺 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) yeast
28. 28.True or false: a magnetic chess set works by air pressure. (a) True (b) False
29. 29.🥤 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
30. 30.🧺 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 towel (c) a mirror (d) a glass of water
31. 31.🔍 Which is the odd one out? (a) a magnetic chess set (b) a compass needle (c) a fridge magnet (d) a drinking straw
32. 32.⚖️ 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
33. 33.🔍 Which is the odd one out? (a) a bicycle pump (b) a drinking straw (c) a medicine dropper (d) a compass needle
34. 34.⚖️ 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) how full the glass is (c) whether the card stays (d) the same glass
35. 35.🥛 Which of these works by magnetism? (a) a fridge magnet (b) a vacuum cleaner (c) a medicine dropper (d) a suction hook
36. 36.True or false: a stiff postcard is not needed for the card-on-a-glass trick. (a) True (b) False
37. 37.⚖️ 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 measure it (b) we keep it the same (c) we change it
38. 38.True or false: a fridge magnet works by air pressure. (a) True (b) False
39. 39.🧺 Which of these is not needed for the card-on-a-glass trick? (a) a stiff postcard (b) a towel (c) a glass of water (d) a mirror
40. 40.🧺 Three of these are needed for the card-on-a-glass trick. Which one is NOT needed? (a) a towel (b) a battery cell (c) a sink or a bucket (d) a glass of water

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