Air Pressure Experiment Worksheet

Science experiments lesson 6: Air pressure: the card on a glass · Set 122 · 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: whether the card stays is what we measure. (a) False (b) True
2. 2.🧺 Three of these are needed for the card-on-a-glass trick. Which one is NOT needed? (a) a glass of water (b) a towel (c) a balloon (d) a sink or a bucket
3. 3.True or false: a drinking straw works by magnetism. (a) True (b) False
4. 4.🧺 Which of these is needed for the card-on-a-glass trick? (a) a balloon (b) a magnet (c) a battery cell (d) a glass of water
5. 5.🥛 Does a magnetic pin holder work by air pressure or by magnetism? (a) magnetism (b) air pressure
6. 6.True or false: a magnet is not needed for the card-on-a-glass trick. (a) False (b) True
7. 7.True or false: a towel is not needed for the card-on-a-glass trick. (a) True (b) False
8. 8.🔍 Which is the odd one out? (a) a magnetic chess set (b) a suction hook (c) a vacuum cleaner (d) a medicine dropper
9. 9.⚖️ 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
10. 10.🧺 Three of these are needed for the card-on-a-glass trick. Which one is NOT needed? (a) turmeric powder (b) a stiff postcard (c) a glass of water (d) a towel
11. 11.⚖️ 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
12. 12.🧺 Which of these is needed for the card-on-a-glass trick? (a) a stiff postcard (b) yeast (c) a magnet (d) a balloon
13. 13.🔮 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
14. 14.🛟 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 heavier (d) it is magnetic
15. 15.⚖️ Fair test — does the card stay on with a full glass and with a half-full glass? Which of these is kept the same? (a) the way we turn it (b) how full the glass is (c) whether the card stays
16. 16.⚖️ 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 change it (c) we keep it the same
17. 17.🔮 Predict: you blow up a balloon. What fills it? (a) air (b) sand (c) water (d) smoke
18. 18.🥛 Which of these works by magnetism? (a) a fridge magnet (b) a suction hook (c) a drinking straw (d) a medicine dropper
19. 19.⚖️ Fair test — does the card stay on with a full glass and with a half-full glass? Which of these is kept the same? (a) how full the glass is (b) the same glass (c) whether the card stays
20. 20.🔍 Which is the odd one out? (a) a drinking straw (b) a fridge magnet (c) a suction hook (d) a vacuum cleaner
21. 21.🛟 Where should you do the card-and-glass trick? (a) near a plug point (b) over a laptop (c) on a bed (d) over a sink or bucket
22. 22.🥛 Does a vacuum cleaner work by air pressure or by magnetism? (a) air pressure (b) magnetism
23. 23.🥛 Does a compass needle work by air pressure or by magnetism? (a) magnetism (b) air pressure
24. 24.🥛 Which of these works by air pressure? (a) a medicine dropper (b) a magnetic chess set (c) a compass needle (d) a fridge magnet
25. 25.True or false: a magnetic chess set works by magnetism. (a) True (b) False
26. 26.🥛 Which of these works by air pressure? (a) a fridge magnet (b) a magnetic chess set (c) a drinking straw (d) a compass needle
27. 27.🔮 Why do we try the card trick over a sink or a bucket? (a) to make it rain (b) to grow plants (c) to cool the glass (d) to catch any spills
28. 28.True or false: a bicycle pump works by air pressure. (a) False (b) True
29. 29.🧺 Which of these is not needed for the card-on-a-glass trick? (a) a battery cell (b) a stiff postcard (c) a sink or a bucket (d) a towel
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 kept the same. (a) True (b) False
31. 31.True or false: a medicine dropper works by air pressure. (a) False (b) True
32. 32.True or false: a glass of water is not needed for the card-on-a-glass trick. (a) True (b) False
33. 33.True or false: a stiff postcard is needed for the card-on-a-glass trick. (a) False (b) True
34. 34.True or false: a stiff postcard is not needed for the card-on-a-glass trick. (a) False (b) True
35. 35.🔍 Which is the odd one out? (a) a vacuum cleaner (b) a bicycle pump (c) a medicine dropper (d) a magnetic pin holder
36. 36.True or false: yeast is needed for the card-on-a-glass trick. (a) True (b) False
37. 37.🧺 Three of these are needed for the card-on-a-glass trick. Which one is NOT needed? (a) yeast (b) a glass of water (c) a towel (d) a stiff postcard
38. 38.⚖️ 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) whether the card stays (d) how full the glass is
39. 39.🥛 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
40. 40.🥛 Which of these works by air pressure? (a) a compass needle (b) a fridge magnet (c) a magnetic pin holder (d) a bicycle pump

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