Air Pressure Experiment Worksheet

Science experiments lesson 6: Air pressure: the card on a glass · Set 989 · 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.⚖️ 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 measure it (c) we change it
2. 2.⚖️ Fair test — does the card stay on with a full glass and with a half-full glass? True or false: the way we turn it is what we measure. (a) True (b) False
3. 3.🔮 Predict: you blow up a balloon. What fills it? (a) sand (b) smoke (c) water (d) air
4. 4.🧺 Three of these are needed for the card-on-a-glass trick. Which one is NOT needed? (a) a glass of water (b) a balloon (c) a sink or a bucket (d) a stiff postcard
5. 5.🔮 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
6. 6.🥛 Why is it best to fill the glass right to the top? (a) water is heavier (b) it looks nicer (c) the card gets wet (d) little air left inside
7. 7.🧺 Do we need a battery cell for the card-on-a-glass trick? (a) not needed (b) needed
8. 8.🧺 Which of these is not needed for the card-on-a-glass trick? (a) a stiff postcard (b) yeast (c) a glass of water (d) a towel
9. 9.⚖️ 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
10. 10.🧺 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 glass of water (c) a stiff postcard (d) a battery cell
11. 11.🧺 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 glass of water (d) turmeric powder
12. 12.🥛 Which of these works by air pressure? (a) a magnetic chess set (b) a magnetic pin holder (c) a drinking straw (d) a compass needle
13. 13.🧺 Do we need a stiff postcard for the card-on-a-glass trick? (a) needed (b) not needed
14. 14.🥛 Does a fridge magnet work by air pressure or by magnetism? (a) air pressure (b) magnetism
15. 15.🔍 Which is the odd one out? (a) a magnetic pin holder (b) a fridge magnet (c) a vacuum cleaner (d) a compass needle
16. 16.🥛 Does a drinking straw work by air pressure or by magnetism? (a) magnetism (b) air pressure
17. 17.🛟 Where should you do the card-and-glass trick? (a) over a sink or bucket (b) over a laptop (c) near a plug point (d) on a bed
18. 18.⚖️ Fair test — does the card stay on with a full glass and with a half-full glass? True or false: the way we turn it is the one thing we change. (a) True (b) False
19. 19.True or false: a compass needle works by magnetism. (a) False (b) True
20. 20.True or false: a drinking straw works by magnetism. (a) True (b) False
21. 21.⚖️ 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 change it (b) we measure it (c) we keep it the same
22. 22.⚖️ 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 keep it the same (b) we measure it (c) we change it
23. 23.🧺 Which of these is needed for the card-on-a-glass trick? (a) a stiff postcard (b) turmeric powder (c) a battery cell (d) a magnet
24. 24.⚖️ 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) how full the glass is (b) whether the card stays (c) the way we turn it (d) the same glass
25. 25.⚖️ 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 card (b) how full the glass is (c) the way we turn it (d) the same glass
26. 26.🥛 Which of these works by magnetism? (a) a suction hook (b) a fridge magnet (c) a medicine dropper (d) a drinking straw
27. 27.⚖️ Fair test — does the card stay on with a full glass and with a half-full glass? True or false: the same card is kept the same. (a) False (b) True
28. 28.True or false: a sink or a bucket is not needed for the card-on-a-glass trick. (a) True (b) False
29. 29.🥛 Does a magnetic pin holder work by air pressure or by magnetism? (a) air pressure (b) magnetism
30. 30.True or false: a glass of water is not needed for the card-on-a-glass trick. (a) True (b) False
31. 31.🥛 Does a suction hook work by air pressure or by magnetism? (a) magnetism (b) air pressure
32. 32.True or false: a magnet is not needed for the card-on-a-glass trick. (a) True (b) False
33. 33.True or false: a suction hook works by magnetism. (a) True (b) False
34. 34.🧺 Do we need a glass of water for the card-on-a-glass trick? (a) needed (b) not needed
35. 35.🧺 Do we need a balloon for the card-on-a-glass trick? (a) not needed (b) needed
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 what we measure. (a) True (b) False
37. 37.🔍 Which is the odd one out? (a) a fridge magnet (b) a magnetic pin holder (c) a compass needle (d) a medicine dropper
38. 38.🥛 Does a magnetic chess set work by air pressure or by magnetism? (a) air pressure (b) magnetism
39. 39.🔍 Which is the odd one out? (a) a bicycle pump (b) a suction hook (c) a medicine dropper (d) a magnetic pin holder
40. 40.🥛 Which of these works by air pressure? (a) a magnetic pin holder (b) a fridge magnet (c) a vacuum cleaner (d) a magnetic chess set

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