Air Pressure Experiment Worksheet

Science experiments lesson 6: Air pressure: the card on a glass · Set 815 · 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.🔮 Why do we try the card trick over a sink or a bucket? (a) to cool the glass (b) to catch any spills (c) to grow plants (d) to make it rain
2. 2.⚖️ 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
3. 3.⚖️ 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
4. 4.⚖️ 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) how full the glass is (d) the way we turn it
5. 5.🔍 Which is the odd one out? (a) a magnetic pin holder (b) a fridge magnet (c) a compass needle (d) a medicine dropper
6. 6.🥛 Which of these works by air pressure? (a) a fridge magnet (b) a magnetic pin holder (c) a bicycle pump (d) a magnetic chess set
7. 7.True or false: a sink or a bucket is needed for the card-on-a-glass trick. (a) True (b) False
8. 8.⚖️ 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
9. 9.⚖️ 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 kept the same. (a) False (b) True
10. 10.⚖️ Fair test — does the card stay on with a full glass and with a half-full glass? True or false: the same glass is what we measure. (a) True (b) False
11. 11.True or false: a towel is not needed for the card-on-a-glass trick. (a) False (b) True
12. 12.🥛 Does a magnetic pin holder work by air pressure or by magnetism? (a) magnetism (b) air pressure
13. 13.🔍 Which is the odd one out? (a) a suction hook (b) a vacuum cleaner (c) a drinking straw (d) a compass needle
14. 14.🧺 Which of these is needed for the card-on-a-glass trick? (a) a magnet (b) turmeric powder (c) yeast (d) a stiff postcard
15. 15.🥛 Which of these works by magnetism? (a) a compass needle (b) a suction hook (c) a drinking straw (d) a bicycle pump
16. 16.True or false: a magnet is not needed for the card-on-a-glass trick. (a) False (b) True
17. 17.⚖️ 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
18. 18.🥛 Which of these works by air pressure? (a) a magnetic chess set (b) a medicine dropper (c) a magnetic pin holder (d) a fridge magnet
19. 19.True or false: a balloon is not needed for the card-on-a-glass trick. (a) False (b) True
20. 20.🧺 Which of these is needed for the card-on-a-glass trick? (a) a magnet (b) yeast (c) a towel (d) a battery cell
21. 21.📘 Air presses on everything around us. What is this push called? (a) sunlight (b) friction (c) magnetism (d) air pressure
22. 22.🧺 Which of these is not needed for the card-on-a-glass trick? (a) a glass of water (b) a stiff postcard (c) a towel (d) yeast
23. 23.🥛 Which of these works by magnetism? (a) a magnetic pin holder (b) a vacuum cleaner (c) a drinking straw (d) a bicycle pump
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) the same glass (b) the same card (c) the way we turn it (d) whether the card stays
25. 25.🧺 Do we need turmeric powder for the card-on-a-glass trick? (a) not needed (b) needed
26. 26.🔍 Which is the odd one out? (a) a drinking straw (b) a vacuum cleaner (c) a suction hook (d) a fridge magnet
27. 27.🔍 Which is the odd one out? (a) a compass needle (b) a fridge magnet (c) a magnetic pin holder (d) a bicycle pump
28. 28.🥛 Which of these works by air pressure? (a) a magnetic chess set (b) a suction hook (c) a magnetic pin holder (d) a fridge magnet
29. 29.⚖️ 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 measure it (c) we change it
30. 30.🧺 Do we need yeast for the card-on-a-glass trick? (a) not needed (b) needed
31. 31.⚖️ 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
32. 32.🔍 You turn the full glass upside down, holding the card, then let go of the card. What happens? (a) the glass breaks (b) the card flies away (c) the water turns to ice (d) the card stays on
33. 33.🛟 Where should you do the card-and-glass trick? (a) near a plug point (b) on a bed (c) over a sink or bucket (d) over a laptop
34. 34.True or false: a drinking straw works by magnetism. (a) True (b) False
35. 35.True or false: a sink or a bucket is not needed for the card-on-a-glass trick. (a) True (b) False
36. 36.🥛 Which of these works by air pressure? (a) a magnetic chess set (b) a drinking straw (c) a magnetic pin holder (d) a compass needle
37. 37.🧺 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) a balloon (d) a glass of water
38. 38.🧺 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 glass of water
39. 39.⚖️ 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 card (b) how full the glass is (c) whether the card stays
40. 40.🛟 Why is a plastic cup safer than a glass for small children here? (a) it is heavier (b) it will not break (c) it is hotter (d) it is magnetic

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