Air Pressure Experiment Worksheet

Science experiments lesson 6: Air pressure: the card on a glass · Set 94 · 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? True or false: how full the glass is is the one thing we change. (a) True (b) False
2. 2.🔮 Why do we try the card trick over a sink or a bucket? (a) to cool the glass (b) to make it rain (c) to grow plants (d) to catch any spills
3. 3.🔍 Which is the odd one out? (a) a compass needle (b) a magnetic pin holder (c) a magnetic chess set (d) a drinking straw
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 magnet (c) a stiff postcard (d) a towel
5. 5.🧺 Which of these is needed for the card-on-a-glass trick? (a) a balloon (b) a glass of water (c) yeast (d) a magnet
6. 6.🥛 What holds the card up against the upside-down glass? (a) air pushing up (b) a magnet (c) glue on the card (d) the cold water
7. 7.True or false: a magnetic chess set works by air pressure. (a) True (b) False
8. 8.True or false: a fridge magnet works by air pressure. (a) False (b) True
9. 9.📘 Air presses on everything around us. What is this push called? (a) air pressure (b) magnetism (c) friction (d) sunlight
10. 10.🥤 Why does juice go up a drinking straw when you sip? (a) air pushes it up (b) the straw is magnetic (c) the straw is hot (d) juice likes plastic
11. 11.🧺 Do we need a battery cell for the card-on-a-glass trick? (a) not needed (b) needed
12. 12.🥛 Does a bicycle pump work by air pressure or by magnetism? (a) magnetism (b) air pressure
13. 13.⚖️ 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) how full the glass is (b) the same glass (c) the same card (d) the way we turn it
14. 14.True or false: a drinking straw works by air pressure. (a) True (b) False
15. 15.🔮 Predict: you blow up a balloon. What fills it? (a) water (b) air (c) sand (d) smoke
16. 16.True or false: turmeric powder is needed for the card-on-a-glass trick. (a) True (b) False
17. 17.True or false: a balloon is needed for the card-on-a-glass trick. (a) True (b) False
18. 18.🔍 Which is the odd one out? (a) a compass needle (b) a bicycle pump (c) a fridge magnet (d) a magnetic chess set
19. 19.⚖️ 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 change it (c) we keep it the same
20. 20.🧺 Do we need a magnet for the card-on-a-glass trick? (a) not needed (b) needed
21. 21.🔍 Which is the odd one out? (a) a magnetic pin holder (b) a magnetic chess set (c) a compass needle (d) a vacuum cleaner
22. 22.🥛 Does a magnetic chess set work by air pressure or by magnetism? (a) air pressure (b) magnetism
23. 23.True or false: a mirror is not needed for the card-on-a-glass trick. (a) False (b) True
24. 24.True or false: a drinking straw works by magnetism. (a) False (b) True
25. 25.🛟 Why is a plastic cup safer than a glass for small children here? (a) it is heavier (b) it is hotter (c) it will not break (d) it is magnetic
26. 26.🧺 Do we need yeast for the card-on-a-glass trick? (a) needed (b) not needed
27. 27.🔮 Predict: you squeeze an empty plastic bottle with its cap screwed on tight. Why is it hard? (a) air inside pushes back (b) the bottle is magnetic (c) the cap is sticky (d) water is hiding there
28. 28.⚖️ 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
29. 29.🥛 Which of these works by air pressure? (a) a magnetic pin holder (b) a compass needle (c) a vacuum cleaner (d) a fridge magnet
30. 30.🥛 Does a vacuum cleaner work by air pressure or by magnetism? (a) magnetism (b) air pressure
31. 31.🥛 Which of these works by magnetism? (a) a bicycle pump (b) a suction hook (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: how full the glass is is kept the same. (a) True (b) False
33. 33.🛟 Where should you do the card-and-glass trick? (a) over a laptop (b) over a sink or bucket (c) on a bed (d) near a plug point
34. 34.⚖️ 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) False (b) True
35. 35.⚖️ Fair test — does the card stay on with a full glass and with a half-full glass? True or false: the same glass is kept the same. (a) False (b) True
36. 36.⚖️ 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 keep it the same (c) we measure it
37. 37.🧺 Which of these is needed for the card-on-a-glass trick? (a) a towel (b) a mirror (c) a magnet (d) a balloon
38. 38.⚖️ 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) False (b) True
39. 39.🥛 Why is it best to fill the glass right to the top? (a) it looks nicer (b) little air left inside (c) the card gets wet (d) water is heavier
40. 40.⚖️ 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

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