Air Pressure Experiment Worksheet

Science experiments lesson 6: Air pressure: the card on a glass · Set 295 · 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.🔍 You turn the full glass upside down, holding the card, then let go of the card. What happens? (a) the card flies away (b) the card stays on (c) the glass breaks (d) the water turns to ice
3. 3.🧺 Three of these are needed for the card-on-a-glass trick. Which one is NOT needed? (a) a glass of water (b) a stiff postcard (c) yeast (d) a sink or a bucket
4. 4.🥛 Which of these works by magnetism? (a) a medicine dropper (b) a compass needle (c) a drinking straw (d) a suction hook
5. 5.⚖️ 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 change it (b) we measure it (c) we keep it the same
6. 6.📘 Air presses on everything around us. What is this push called? (a) sunlight (b) magnetism (c) air pressure (d) friction
7. 7.🥛 What holds the card up against the upside-down glass? (a) a magnet (b) air pushing up (c) the cold water (d) glue on the card
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? What do we do with “whether the card stays”? (a) we keep it the same (b) we measure it (c) we change it
10. 10.🛟 Where should you do the card-and-glass trick? (a) over a sink or bucket (b) near a plug point (c) on a bed (d) over a laptop
11. 11.🔍 Which is the odd one out? (a) a magnetic chess set (b) a bicycle pump (c) a suction hook (d) a vacuum cleaner
12. 12.🥛 Does a magnetic chess set work by air pressure or by magnetism? (a) magnetism (b) air pressure
13. 13.🥤 Why does juice go up a drinking straw when you sip? (a) air pushes it up (b) the straw is magnetic (c) juice likes plastic (d) the straw is hot
14. 14.🥛 Does a suction hook work by air pressure or by magnetism? (a) magnetism (b) air pressure
15. 15.🥛 Which of these works by air pressure? (a) a medicine dropper (b) a magnetic pin holder (c) a fridge magnet (d) a compass needle
16. 16.🔍 Which is the odd one out? (a) a medicine dropper (b) a bicycle pump (c) a compass needle (d) a drinking straw
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 kept the same. (a) False (b) True
18. 18.🥛 Does a medicine dropper work by air pressure or by magnetism? (a) magnetism (b) air pressure
19. 19.⚖️ 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) True (b) False
20. 20.True or false: a balloon is needed for the card-on-a-glass trick. (a) True (b) False
21. 21.🥛 Does a vacuum cleaner work by air pressure or by magnetism? (a) air pressure (b) magnetism
22. 22.True or false: a balloon is not needed for the card-on-a-glass trick. (a) True (b) False
23. 23.🧺 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 battery cell
24. 24.⚖️ 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 change it (b) we measure it (c) we keep it the same
25. 25.🛟 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 heavier (d) it is magnetic
26. 26.🧺 Do we need a stiff postcard for the card-on-a-glass trick? (a) not needed (b) needed
27. 27.🔍 Which is the odd one out? (a) a magnetic pin holder (b) a vacuum cleaner (c) a medicine dropper (d) a bicycle pump
28. 28.⚖️ 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) whether the card stays (c) the same glass (d) how full the glass is
29. 29.🥛 Which of these works by magnetism? (a) a drinking straw (b) a bicycle pump (c) a vacuum cleaner (d) a magnetic pin holder
30. 30.⚖️ 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
31. 31.🔍 Which is the odd one out? (a) a bicycle pump (b) a drinking straw (c) a vacuum cleaner (d) a fridge magnet
32. 32.⚖️ 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 the one thing we change. (a) True (b) False
33. 33.🧺 Do we need a glass of water for the card-on-a-glass trick? (a) not needed (b) needed
34. 34.🧺 Three of these are needed for the card-on-a-glass trick. Which one is NOT needed? (a) a battery cell (b) a sink or a bucket (c) a glass of water (d) a stiff postcard
35. 35.🔍 Which is the odd one out? (a) a compass needle (b) a fridge magnet (c) a magnetic pin holder (d) a medicine dropper
36. 36.🔍 Which is the odd one out? (a) a fridge magnet (b) a compass needle (c) a magnetic pin holder (d) a vacuum cleaner
37. 37.🔮 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
38. 38.True or false: a sink or a bucket is not needed for the card-on-a-glass trick. (a) True (b) False
39. 39.🔍 Which is the odd one out? (a) a bicycle pump (b) a magnetic chess set (c) a compass needle (d) a magnetic pin holder
40. 40.🧺 Which of these is not needed for the card-on-a-glass trick? (a) a sink or a bucket (b) a magnet (c) a stiff postcard (d) a glass of water

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