Air Pressure Experiment Worksheet

Science experiments lesson 6: Air pressure: the card on a glass · Set 396 · 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 is the odd one out? (a) a magnetic pin holder (b) a medicine dropper (c) a bicycle pump (d) a vacuum cleaner
2. 2.🔍 Which is the odd one out? (a) a drinking straw (b) a suction hook (c) a compass needle (d) a vacuum cleaner
3. 3.🥛 Which of these works by magnetism? (a) a drinking straw (b) a bicycle pump (c) a magnetic pin holder (d) a vacuum cleaner
4. 4.🥛 Which of these works by magnetism? (a) a bicycle pump (b) a suction hook (c) a vacuum cleaner (d) a compass needle
5. 5.⚖️ 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) the same glass (d) whether the card stays
6. 6.True or false: a balloon is needed for the card-on-a-glass trick. (a) True (b) False
7. 7.🧺 Three of these are needed for the card-on-a-glass trick. Which one is NOT needed? (a) a glass of water (b) a towel (c) a mirror (d) a stiff postcard
8. 8.🧺 Do we need a magnet for the card-on-a-glass trick? (a) needed (b) not needed
9. 9.🧺 Which of these is not needed for the card-on-a-glass trick? (a) a towel (b) turmeric powder (c) a glass of water (d) a sink or a bucket
10. 10.🧺 Three of these are needed for the card-on-a-glass trick. Which one is NOT needed? (a) a stiff postcard (b) a sink or a bucket (c) turmeric powder (d) a glass of water
11. 11.🔍 Which is the odd one out? (a) a drinking straw (b) a magnetic chess set (c) a medicine dropper (d) a vacuum cleaner
12. 12.🥛 Which of these works by air pressure? (a) a magnetic pin holder (b) a compass needle (c) a drinking straw (d) a magnetic chess set
13. 13.🧺 Which of these is needed for the card-on-a-glass trick? (a) a sink or a bucket (b) turmeric powder (c) a mirror (d) yeast
14. 14.🧺 Which of these is not needed for the card-on-a-glass trick? (a) a sink or a bucket (b) a mirror (c) a stiff postcard (d) a glass of water
15. 15.True or false: a stiff postcard is not needed for the card-on-a-glass trick. (a) False (b) True
16. 16.⚖️ 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) whether the card stays (b) the same card (c) how full the glass is (d) the way we turn it
17. 17.🧺 Which of these is not needed for the card-on-a-glass trick? (a) a glass of water (b) yeast (c) a sink or a bucket (d) a stiff postcard
18. 18.🧺 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 stiff postcard (c) a glass of water (d) a magnet
19. 19.🧺 Do we need a sink or a bucket for the card-on-a-glass trick? (a) needed (b) not needed
20. 20.⚖️ 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 change it (c) we measure it
21. 21.🔍 Which is the odd one out? (a) a fridge magnet (b) a magnetic chess set (c) a compass needle (d) a suction hook
22. 22.🔍 Which is the odd one out? (a) a fridge magnet (b) a medicine dropper (c) a vacuum cleaner (d) a bicycle pump
23. 23.⚖️ 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
24. 24.🥛 Does a medicine dropper work by air pressure or by magnetism? (a) air pressure (b) magnetism
25. 25.🔮 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
26. 26.True or false: a drinking straw works by magnetism. (a) True (b) False
27. 27.🧺 Do we need a mirror for the card-on-a-glass trick? (a) needed (b) not needed
28. 28.🥛 What holds the card up against the upside-down glass? (a) glue on the card (b) the cold water (c) air pushing up (d) a magnet
29. 29.🧺 Do we need a stiff postcard for the card-on-a-glass trick? (a) not needed (b) needed
30. 30.🛟 Why is a plastic cup safer than a glass for small children here? (a) it will not break (b) it is hotter (c) it is magnetic (d) it is heavier
31. 31.🥛 Does a vacuum cleaner work by air pressure or by magnetism? (a) magnetism (b) air pressure
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) the way we turn it (b) whether the card stays (c) how full the glass is
33. 33.🧺 Which of these is not needed for the card-on-a-glass trick? (a) a towel (b) a glass of water (c) a sink or a bucket (d) a magnet
34. 34.🥤 Why does juice go up a drinking straw when you sip? (a) air pushes it up (b) the straw is hot (c) juice likes plastic (d) the straw is magnetic
35. 35.🔮 Predict: you squeeze an empty plastic bottle with its cap screwed on tight. Why is it hard? (a) water is hiding there (b) the cap is sticky (c) air inside pushes back (d) the bottle is magnetic
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.🧺 Which of these is needed for the card-on-a-glass trick? (a) a magnet (b) a mirror (c) a glass of water (d) turmeric powder
38. 38.True or false: a suction hook works by air pressure. (a) False (b) True
39. 39.🧺 Do we need a balloon for the card-on-a-glass trick? (a) not needed (b) needed
40. 40.True or false: a sink or a bucket is needed for the card-on-a-glass trick. (a) False (b) True

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