Air Pressure Experiment Worksheet

Science experiments lesson 6: Air pressure: the card on a glass · Set 535 · 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.True or false: a bicycle pump works by magnetism. (a) True (b) False
2. 2.🛟 Where should you do the card-and-glass trick? (a) on a bed (b) over a laptop (c) over a sink or bucket (d) near a plug point
3. 3.🥛 Which of these works by magnetism? (a) a vacuum cleaner (b) a suction hook (c) a magnetic chess set (d) a drinking straw
4. 4.🥛 Which of these works by magnetism? (a) a drinking straw (b) a suction hook (c) a medicine dropper (d) a fridge magnet
5. 5.True or false: a stiff postcard is not needed for the card-on-a-glass trick. (a) False (b) True
6. 6.True or false: a fridge magnet works by air pressure. (a) False (b) True
7. 7.True or false: a suction hook works by air pressure. (a) False (b) True
8. 8.True or false: a mirror is needed for the card-on-a-glass trick. (a) True (b) False
9. 9.🥛 Which of these works by air pressure? (a) a fridge magnet (b) a drinking straw (c) a magnetic chess set (d) a magnetic pin holder
10. 10.🧺 Do we need a battery cell for the card-on-a-glass trick? (a) not needed (b) needed
11. 11.🥛 Which of these works by air pressure? (a) a fridge magnet (b) a magnetic chess set (c) a compass needle (d) a suction hook
12. 12.🥛 Does a fridge magnet work by air pressure or by magnetism? (a) air pressure (b) magnetism
13. 13.🥛 What holds the card up against the upside-down glass? (a) the cold water (b) glue on the card (c) air pushing up (d) a magnet
14. 14.🔮 Why do we try the card trick over a sink or a bucket? (a) to make it rain (b) to catch any spills (c) to grow plants (d) to cool the glass
15. 15.🧺 Which of these is needed for the card-on-a-glass trick? (a) yeast (b) a stiff postcard (c) a battery cell (d) a balloon
16. 16.⚖️ 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
17. 17.🧺 Which of these is needed for the card-on-a-glass trick? (a) a magnet (b) a balloon (c) turmeric powder (d) a glass of water
18. 18.🔍 Which is the odd one out? (a) a magnetic chess set (b) a suction hook (c) a vacuum cleaner (d) a bicycle pump
19. 19.⚖️ 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) False (b) True
20. 20.⚖️ 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) how full the glass is (c) the same glass (d) whether the card stays
21. 21.⚖️ 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
22. 22.⚖️ 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 change it (c) we measure it
23. 23.🥛 Which of these works by air pressure? (a) a fridge magnet (b) a bicycle pump (c) a magnetic chess set (d) a compass needle
24. 24.🛟 Why is a plastic cup safer than a glass for small children here? (a) it is magnetic (b) it is hotter (c) it is heavier (d) it will not break
25. 25.🧺 Do we need a sink or a bucket for the card-on-a-glass trick? (a) not needed (b) needed
26. 26.True or false: a battery cell is needed for the card-on-a-glass trick. (a) True (b) False
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 glass of water (c) a towel (d) turmeric powder
28. 28.🧺 Which of these is needed for the card-on-a-glass trick? (a) a balloon (b) a magnet (c) a mirror (d) a towel
29. 29.🧺 Do we need a towel for the card-on-a-glass trick? (a) not needed (b) needed
30. 30.🥛 Does a magnetic pin holder work by air pressure or by magnetism? (a) air pressure (b) magnetism
31. 31.🔍 Which is the odd one out? (a) a magnetic pin holder (b) a medicine dropper (c) a vacuum cleaner (d) a drinking straw
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) how full the glass is (b) whether the card stays (c) the same glass
33. 33.🥤 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
34. 34.🧺 Do we need yeast for the card-on-a-glass trick? (a) needed (b) not needed
35. 35.🔮 Predict: you squeeze an empty plastic bottle with its cap screwed on tight. Why is it hard? (a) air inside pushes back (b) the cap is sticky (c) the bottle is magnetic (d) water is hiding there
36. 36.🥛 Does a medicine dropper work by air pressure or by magnetism? (a) air pressure (b) magnetism
37. 37.⚖️ 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 what we measure. (a) True (b) False
38. 38.⚖️ 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) False (b) True
39. 39.🧺 Which of these is not needed for the card-on-a-glass trick? (a) a stiff postcard (b) a glass of water (c) turmeric powder (d) a towel
40. 40.🔮 Predict: you blow up a balloon. What fills it? (a) sand (b) smoke (c) water (d) air

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