Air Pressure Experiment Worksheet

Science experiments lesson 6: Air pressure: the card on a glass · Set 564 · 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 “whether the card stays”? (a) we change it (b) we keep it the same (c) we measure it
2. 2.🧺 Do we need a balloon for the card-on-a-glass trick? (a) needed (b) not needed
3. 3.⚖️ 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
4. 4.🔮 Predict: you blow up a balloon. What fills it? (a) water (b) sand (c) smoke (d) air
5. 5.🔍 Which is the odd one out? (a) a fridge magnet (b) a compass needle (c) a magnetic pin holder (d) a suction hook
6. 6.⚖️ 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
7. 7.🔍 Which is the odd one out? (a) a drinking straw (b) a bicycle pump (c) a compass needle (d) a vacuum cleaner
8. 8.True or false: a drinking straw works by air pressure. (a) False (b) True
9. 9.🔍 Which is the odd one out? (a) a magnetic chess set (b) a fridge magnet (c) a magnetic pin holder (d) a bicycle pump
10. 10.🧺 Do we need a magnet for the card-on-a-glass trick? (a) not needed (b) needed
11. 11.True or false: turmeric powder is needed for the card-on-a-glass trick. (a) True (b) False
12. 12.📘 Air presses on everything around us. What is this push called? (a) magnetism (b) air pressure (c) sunlight (d) friction
13. 13.🧺 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 towel
14. 14.🧺 Do we need a towel for the card-on-a-glass trick? (a) needed (b) not needed
15. 15.⚖️ 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) the same glass (c) whether the card stays (d) the way we turn it
16. 16.🥛 Which of these works by air pressure? (a) a magnetic pin holder (b) a fridge magnet (c) a magnetic chess set (d) a suction hook
17. 17.🧺 Which of these is not needed for the card-on-a-glass trick? (a) yeast (b) a glass of water (c) a sink or a bucket (d) a stiff postcard
18. 18.🥛 Which of these works by magnetism? (a) a drinking straw (b) a magnetic chess set (c) a vacuum cleaner (d) a bicycle pump
19. 19.🥛 Which of these works by air pressure? (a) a magnetic chess set (b) a fridge magnet (c) a vacuum cleaner (d) a compass needle
20. 20.True or false: a bicycle pump works by magnetism. (a) False (b) True
21. 21.🧺 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 balloon (d) a towel
22. 22.🔍 Which is the odd one out? (a) a magnetic chess set (b) a fridge magnet (c) a medicine dropper (d) a compass needle
23. 23.🔮 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
24. 24.⚖️ 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 kept the same. (a) True (b) False
25. 25.🥛 Which of these works by magnetism? (a) a vacuum cleaner (b) a compass needle (c) a bicycle pump (d) a drinking straw
26. 26.🥛 Does a vacuum cleaner work by air pressure or by magnetism? (a) magnetism (b) air pressure
27. 27.🧺 Which of these is needed for the card-on-a-glass trick? (a) a mirror (b) yeast (c) a towel (d) a magnet
28. 28.🥤 Why does juice go up a drinking straw when you sip? (a) juice likes plastic (b) the straw is hot (c) the straw is magnetic (d) air pushes it up
29. 29.🛟 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
30. 30.True or false: a towel is needed for the card-on-a-glass trick. (a) False (b) True
31. 31.True or false: yeast is not needed for the card-on-a-glass trick. (a) True (b) False
32. 32.🧺 Do we need yeast for the card-on-a-glass trick? (a) needed (b) not needed
33. 33.⚖️ 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) False (b) True
34. 34.🔍 Which is the odd one out? (a) a medicine dropper (b) a magnetic pin holder (c) a drinking straw (d) a suction hook
35. 35.🔍 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 flies away (c) the card stays on (d) the glass breaks
36. 36.True or false: a sink or a bucket is needed for the card-on-a-glass trick. (a) False (b) True
37. 37.True or false: turmeric powder is not needed for the card-on-a-glass trick. (a) True (b) False
38. 38.🥛 What holds the card up against the upside-down glass? (a) air pushing up (b) a magnet (c) the cold water (d) glue on the card
39. 39.🥛 Which of these works by magnetism? (a) a bicycle pump (b) a vacuum cleaner (c) a medicine dropper (d) a magnetic pin holder
40. 40.🛟 Where should you do the card-and-glass trick? (a) over a laptop (b) on a bed (c) near a plug point (d) over a sink or bucket

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