Air Pressure Experiment Worksheet

Science experiments lesson 6: Air pressure: the card on a glass · Set 888 · 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 compass needle (b) a medicine dropper (c) a bicycle pump (d) a drinking straw
2. 2.🧺 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 towel (d) yeast
3. 3.🔮 Why do we try the card trick over a sink or a bucket? (a) to make it rain (b) to grow plants (c) to catch any spills (d) to cool the glass
4. 4.🛟 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
5. 5.True or false: a stiff postcard is not needed for the card-on-a-glass trick. (a) True (b) False
6. 6.⚖️ 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 keep it the same (b) we measure it (c) we change it
7. 7.True or false: a compass needle works by magnetism. (a) True (b) False
8. 8.True or false: a glass of water is not needed for the card-on-a-glass trick. (a) True (b) False
9. 9.🛟 Where should you do the card-and-glass trick? (a) over a sink or bucket (b) over a laptop (c) on a bed (d) near a plug point
10. 10.🧺 Do we need turmeric powder for the card-on-a-glass trick? (a) not needed (b) needed
11. 11.🧺 Do we need yeast 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? Which of these is kept the same? (a) the same glass (b) whether the card stays (c) how full the glass is
13. 13.🥛 Does a magnetic pin holder work by air pressure or by magnetism? (a) air pressure (b) magnetism
14. 14.🧺 Which of these is needed for the card-on-a-glass trick? (a) a towel (b) a mirror (c) a battery cell (d) turmeric powder
15. 15.⚖️ 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) how full the glass is (c) the same card (d) the same glass
16. 16.🧺 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) a magnet (d) a glass of water
17. 17.True or false: a fridge magnet works by air pressure. (a) False (b) True
18. 18.⚖️ 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
19. 19.🧺 Do we need a magnet for the card-on-a-glass trick? (a) not needed (b) needed
20. 20.🥛 Which of these works by air pressure? (a) a magnetic pin holder (b) a magnetic chess set (c) a compass needle (d) a drinking straw
21. 21.True or false: turmeric powder is not needed for the card-on-a-glass trick. (a) True (b) False
22. 22.🥛 Which of these works by magnetism? (a) a magnetic pin holder (b) a drinking straw (c) a vacuum cleaner (d) a suction hook
23. 23.🧺 Do we need a stiff postcard for the card-on-a-glass trick? (a) not needed (b) needed
24. 24.⚖️ 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
25. 25.🥛 Why is it best to fill the glass right to the top? (a) little air left inside (b) water is heavier (c) the card gets wet (d) it looks nicer
26. 26.True or false: a towel is needed for the card-on-a-glass trick. (a) False (b) True
27. 27.🔮 Predict: you blow up a balloon. What fills it? (a) sand (b) air (c) smoke (d) water
28. 28.True or false: a medicine dropper works by magnetism. (a) False (b) True
29. 29.🥛 Which of these works by air pressure? (a) a compass needle (b) a fridge magnet (c) a magnetic chess set (d) a suction hook
30. 30.🔍 Which is the odd one out? (a) a medicine dropper (b) a vacuum cleaner (c) a drinking straw (d) a fridge magnet
31. 31.🧺 Do we need a sink or a bucket for the card-on-a-glass trick? (a) not needed (b) needed
32. 32.🧺 Three of these are needed for the card-on-a-glass trick. Which one is NOT needed? (a) turmeric powder (b) a sink or a bucket (c) a glass of water (d) a towel
33. 33.🔍 Which is the odd one out? (a) a medicine dropper (b) a bicycle pump (c) a magnetic chess set (d) a suction hook
34. 34.⚖️ 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
35. 35.🥛 Does a suction hook work by air pressure or by magnetism? (a) air pressure (b) magnetism
36. 36.🔍 You turn the full glass upside down, holding the card, then let go of the card. What happens? (a) the water turns to ice (b) the card stays on (c) the glass breaks (d) the card flies away
37. 37.True or false: a magnetic chess set works by air pressure. (a) True (b) False
38. 38.🧺 Do we need a balloon for the card-on-a-glass trick? (a) needed (b) not needed
39. 39.True or false: a mirror is needed for the card-on-a-glass trick. (a) True (b) False
40. 40.🥛 Does a vacuum cleaner work by air pressure or by magnetism? (a) air pressure (b) magnetism

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