Air Pressure Experiment Worksheet

Science experiments lesson 6: Air pressure: the card on a glass · Set 366 · 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? Which of these is what we measure? (a) the same glass (b) the same card (c) how full the glass is (d) whether the card stays
2. 2.🔍 Which is the odd one out? (a) a vacuum cleaner (b) a magnetic chess set (c) a medicine dropper (d) a suction hook
3. 3.🥛 Which of these works by air pressure? (a) a compass needle (b) a magnetic chess set (c) a magnetic pin holder (d) a suction hook
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 stiff postcard (c) a battery cell (d) a sink or a bucket
5. 5.🔍 Which is the odd one out? (a) a fridge magnet (b) a bicycle pump (c) a suction hook (d) a medicine dropper
6. 6.🛟 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
7. 7.🧺 Do we need a balloon for the card-on-a-glass trick? (a) not needed (b) needed
8. 8.🔮 Predict: you squeeze an empty plastic bottle with its cap screwed on tight. Why is it hard? (a) the cap is sticky (b) the bottle is magnetic (c) water is hiding there (d) air inside pushes back
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 the one thing we change. (a) True (b) False
10. 10.🧺 Which of these is not needed for the card-on-a-glass trick? (a) a glass of water (b) a sink or a bucket (c) a stiff postcard (d) turmeric powder
11. 11.🥛 Why is it best to fill the glass right to the top? (a) the card gets wet (b) it looks nicer (c) little air left inside (d) water is heavier
12. 12.True or false: a medicine dropper works by air pressure. (a) False (b) True
13. 13.⚖️ 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
14. 14.🔮 Why do we try the card trick over a sink or a bucket? (a) to catch any spills (b) to cool the glass (c) to make it rain (d) to grow plants
15. 15.⚖️ 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 measure it (b) we keep it the same (c) we change it
16. 16.🧺 Three of these are needed for the card-on-a-glass trick. Which one is NOT needed? (a) a sink or a bucket (b) a stiff postcard (c) a glass of water (d) yeast
17. 17.True or false: a glass of water is not needed for the card-on-a-glass trick. (a) True (b) False
18. 18.🧺 Do we need a magnet for the card-on-a-glass trick? (a) not needed (b) needed
19. 19.🥛 Which of these works by air pressure? (a) a bicycle pump (b) a magnetic chess set (c) a fridge magnet (d) a compass needle
20. 20.🥛 Which of these works by air pressure? (a) a medicine dropper (b) a magnetic pin holder (c) a fridge magnet (d) a compass needle
21. 21.🥛 Which of these works by air pressure? (a) a drinking straw (b) a compass needle (c) a magnetic pin holder (d) a magnetic chess set
22. 22.True or false: a vacuum cleaner works by magnetism. (a) False (b) True
23. 23.🥤 Why does juice go up a drinking straw when you sip? (a) juice likes plastic (b) the straw is magnetic (c) the straw is hot (d) air pushes it up
24. 24.True or false: a drinking straw works by magnetism. (a) True (b) False
25. 25.🔮 Predict: you blow up a balloon. What fills it? (a) sand (b) air (c) smoke (d) water
26. 26.🥛 What holds the card up against the upside-down glass? (a) the cold water (b) glue on the card (c) air pushing up (d) a magnet
27. 27.🔍 Which is the odd one out? (a) a suction hook (b) a compass needle (c) a drinking straw (d) a bicycle pump
28. 28.⚖️ 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
29. 29.🧺 Do we need a glass of water for the card-on-a-glass trick? (a) not needed (b) needed
30. 30.⚖️ 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
31. 31.🥛 Does a drinking straw work by air pressure or by magnetism? (a) magnetism (b) air pressure
32. 32.🔍 Which is the odd one out? (a) a vacuum cleaner (b) a magnetic chess set (c) a compass needle (d) a magnetic pin holder
33. 33.⚖️ 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) True (b) False
34. 34.📘 Air presses on everything around us. What is this push called? (a) magnetism (b) friction (c) air pressure (d) sunlight
35. 35.⚖️ 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) whether the card stays (c) the same card (d) the same glass
36. 36.🧺 Three of these are needed for the card-on-a-glass trick. Which one is NOT needed? (a) a sink or a bucket (b) a stiff postcard (c) turmeric powder (d) a towel
37. 37.🧺 Which of these is needed for the card-on-a-glass trick? (a) turmeric powder (b) a glass of water (c) a battery cell (d) a balloon
38. 38.True or false: a mirror is needed for the card-on-a-glass trick. (a) False (b) True
39. 39.True or false: turmeric powder is needed for the card-on-a-glass trick. (a) True (b) False
40. 40.🥛 Which of these works by air pressure? (a) a magnetic pin holder (b) a vacuum cleaner (c) a magnetic chess set (d) a compass needle

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