Air Pressure Experiment Worksheet

Science experiments lesson 6: Air pressure: the card on a glass · Set 441 · 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 is the odd one out? (a) a magnetic chess set (b) a vacuum cleaner (c) a magnetic pin holder (d) a compass needle
2. 2.⚖️ 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 change it (c) we measure it
3. 3.⚖️ 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
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) the way we turn it (c) how full the glass is (d) whether the card stays
5. 5.🧺 Which of these is needed for the card-on-a-glass trick? (a) a mirror (b) yeast (c) a battery cell (d) a glass of water
6. 6.🥛 Does a medicine dropper work by air pressure or by magnetism? (a) magnetism (b) air pressure
7. 7.🥛 Does a vacuum cleaner work by air pressure or by magnetism? (a) magnetism (b) air pressure
8. 8.🥛 Which of these works by magnetism? (a) a bicycle pump (b) a drinking straw (c) a suction hook (d) a magnetic pin holder
9. 9.True or false: a balloon is not needed for the card-on-a-glass trick. (a) True (b) False
10. 10.True or false: a bicycle pump works by magnetism. (a) True (b) False
11. 11.⚖️ 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
12. 12.⚖️ 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 way we turn it (b) the same glass (c) whether the card stays (d) the same card
13. 13.🛟 Why is a plastic cup safer than a glass for small children here? (a) it is hotter (b) it is heavier (c) it will not break (d) it is magnetic
14. 14.🔮 Predict: you blow up a balloon. What fills it? (a) sand (b) air (c) water (d) smoke
15. 15.🧺 Three of these are needed for the card-on-a-glass trick. Which one is NOT needed? (a) a magnet (b) a towel (c) a stiff postcard (d) a glass of water
16. 16.🔍 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 water turns to ice (c) the glass breaks (d) the card stays on
17. 17.🥤 Why does juice go up a drinking straw when you sip? (a) the straw is hot (b) air pushes it up (c) the straw is magnetic (d) juice likes plastic
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 kept the same. (a) False (b) True
19. 19.🥛 Does a magnetic pin holder work by air pressure or by magnetism? (a) air pressure (b) magnetism
20. 20.🔍 Which is the odd one out? (a) a magnetic pin holder (b) a medicine dropper (c) a suction hook (d) a drinking straw
21. 21.True or false: a magnet is needed for the card-on-a-glass trick. (a) True (b) False
22. 22.🛟 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
23. 23.🧺 Three of these are needed for the card-on-a-glass trick. Which one is NOT needed? (a) a towel (b) a glass of water (c) a stiff postcard (d) a balloon
24. 24.🧺 Do we need a mirror for the card-on-a-glass trick? (a) needed (b) not needed
25. 25.⚖️ 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 measure it (b) we change it (c) we keep it the same
26. 26.⚖️ 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) False (b) True
27. 27.🥛 Does a drinking straw work by air pressure or by magnetism? (a) air pressure (b) magnetism
28. 28.🧺 Do we need a stiff postcard for the card-on-a-glass trick? (a) needed (b) not needed
29. 29.🧺 Do we need a balloon for the card-on-a-glass trick? (a) needed (b) not needed
30. 30.True or false: a magnetic chess set works by air pressure. (a) False (b) True
31. 31.🧺 Which of these is not needed for the card-on-a-glass trick? (a) a glass of water (b) a magnet (c) a stiff postcard (d) a sink or a bucket
32. 32.🔮 Why do we try the card trick over a sink or a bucket? (a) to make it rain (b) to cool the glass (c) to grow plants (d) to catch any spills
33. 33.🥛 Which of these works by air pressure? (a) a compass needle (b) a magnetic pin holder (c) a fridge magnet (d) a drinking straw
34. 34.🥛 Does a compass needle work by air pressure or by magnetism? (a) air pressure (b) magnetism
35. 35.⚖️ 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
36. 36.🥛 Does a magnetic chess set work by air pressure or by magnetism? (a) magnetism (b) air pressure
37. 37.🔍 Which is the odd one out? (a) a medicine dropper (b) a drinking straw (c) a compass needle (d) a vacuum cleaner
38. 38.⚖️ Fair test — does the card stay on with a full glass and with a half-full glass? True or false: the same card is what we measure. (a) True (b) False
39. 39.🧺 Do we need a glass of water for the card-on-a-glass trick? (a) needed (b) not needed
40. 40.📘 Air presses on everything around us. What is this push called? (a) sunlight (b) air pressure (c) magnetism (d) friction

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