Air Pressure Experiment Worksheet

Science experiments lesson 6: Air pressure: the card on a glass · Set 518 · 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.🧺 Three of these are needed for the card-on-a-glass trick. Which one is NOT needed? (a) a towel (b) a stiff postcard (c) turmeric powder (d) a sink or a bucket
2. 2.True or false: a towel is not needed for the card-on-a-glass trick. (a) True (b) False
3. 3.True or false: a balloon is needed for the card-on-a-glass trick. (a) True (b) False
4. 4.🥤 Why does juice go up a drinking straw when you sip? (a) the straw is magnetic (b) air pushes it up (c) juice likes plastic (d) the straw is hot
5. 5.⚖️ 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
6. 6.True or false: a mirror is not needed for the card-on-a-glass trick. (a) False (b) True
7. 7.🥛 Which of these works by air pressure? (a) a magnetic pin holder (b) a compass needle (c) a drinking straw (d) a fridge magnet
8. 8.🧺 Do we need a sink or a bucket for the card-on-a-glass trick? (a) needed (b) not needed
9. 9.⚖️ 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 glass (b) the same card (c) the way we turn it (d) whether the card stays
10. 10.🧺 Which of these is not needed for the card-on-a-glass trick? (a) a glass of water (b) a sink or a bucket (c) a balloon (d) a stiff postcard
11. 11.🧺 Do we need a magnet for the card-on-a-glass trick? (a) not needed (b) needed
12. 12.🧺 Which of these is needed for the card-on-a-glass trick? (a) a battery cell (b) turmeric powder (c) yeast (d) a towel
13. 13.🔍 Which is the odd one out? (a) a drinking straw (b) a fridge magnet (c) a magnetic chess set (d) a compass needle
14. 14.🧺 Three of these are needed for the card-on-a-glass trick. Which one is NOT needed? (a) a magnet (b) a glass of water (c) a towel (d) a sink or a bucket
15. 15.True or false: a fridge magnet works by air pressure. (a) True (b) False
16. 16.🔍 Which is the odd one out? (a) a fridge magnet (b) a magnetic chess set (c) a magnetic pin holder (d) a medicine dropper
17. 17.🛟 Why is a plastic cup safer than a glass for small children here? (a) it is heavier (b) it is hotter (c) it will not break (d) it is magnetic
18. 18.🔮 Predict: you squeeze an empty plastic bottle with its cap screwed on tight. Why is it hard? (a) water is hiding there (b) the bottle is magnetic (c) the cap is sticky (d) air inside pushes back
19. 19.🧺 Do we need yeast for the card-on-a-glass trick? (a) not needed (b) needed
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) whether the card stays (b) the way we turn it (c) how full the glass is
21. 21.🧺 Which of these is not needed for the card-on-a-glass trick? (a) a towel (b) a glass of water (c) yeast (d) a stiff postcard
22. 22.📘 Air presses on everything around us. What is this push called? (a) friction (b) sunlight (c) air pressure (d) magnetism
23. 23.🧺 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 mirror (d) a stiff postcard
24. 24.🔍 Which is the odd one out? (a) a drinking straw (b) a bicycle pump (c) a magnetic pin holder (d) a medicine dropper
25. 25.🔍 Which is the odd one out? (a) a compass needle (b) a fridge magnet (c) a vacuum cleaner (d) a magnetic chess set
26. 26.🥛 Does a drinking straw work by air pressure or by magnetism? (a) magnetism (b) air pressure
27. 27.🥛 Which of these works by air pressure? (a) a magnetic chess set (b) a fridge magnet (c) a medicine dropper (d) a compass needle
28. 28.True or false: a magnet is needed for the card-on-a-glass trick. (a) True (b) False
29. 29.True or false: a magnetic pin holder works by air pressure. (a) False (b) True
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 stiff postcard (c) a battery cell (d) a glass of water
31. 31.🧺 Which of these is not needed for the card-on-a-glass trick? (a) a glass of water (b) a sink or a bucket (c) a stiff postcard (d) a mirror
32. 32.True or false: a drinking straw works by air pressure. (a) True (b) False
33. 33.🥛 Which of these works by air pressure? (a) a fridge magnet (b) a compass needle (c) a magnetic pin holder (d) a vacuum cleaner
34. 34.⚖️ 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 keep it the same (c) we change it
35. 35.🥛 Does a medicine dropper work by air pressure or by magnetism? (a) air pressure (b) magnetism
36. 36.True or false: turmeric powder is not needed for the card-on-a-glass trick. (a) False (b) True
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.⚖️ 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) whether the card stays (c) the way we turn it (d) how full the glass is
39. 39.🔮 Predict: you blow up a balloon. What fills it? (a) air (b) sand (c) water (d) smoke
40. 40.🔮 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

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