Air Pressure Experiment Worksheet

Science experiments lesson 6: Air pressure: the card on a glass · Set 249 · 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.🥛 Does a medicine dropper work by air pressure or by magnetism? (a) air pressure (b) magnetism
2. 2.True or false: a balloon is not needed for the card-on-a-glass trick. (a) False (b) True
3. 3.🧺 Do we need a mirror for the card-on-a-glass trick? (a) needed (b) not needed
4. 4.🧺 Do we need a sink or a bucket for the card-on-a-glass trick? (a) not needed (b) needed
5. 5.🧺 Which of these is not needed for the card-on-a-glass trick? (a) a towel (b) a sink or a bucket (c) yeast (d) a glass of water
6. 6.🔍 Which is the odd one out? (a) a fridge magnet (b) a compass needle (c) a magnetic pin holder (d) a medicine dropper
7. 7.🥛 Does a fridge magnet work by air pressure or by magnetism? (a) magnetism (b) air pressure
8. 8.⚖️ 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 the one thing we change. (a) True (b) False
9. 9.⚖️ 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 change it (b) we measure it (c) we keep it the same
10. 10.🧺 Three of these are needed for the card-on-a-glass trick. Which one is NOT needed? (a) turmeric powder (b) a glass of water (c) a sink or a bucket (d) a stiff postcard
11. 11.🛟 Where should you do the card-and-glass trick? (a) on a bed (b) over a sink or bucket (c) near a plug point (d) over a laptop
12. 12.⚖️ 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 same glass (b) how full the glass is (c) whether the card stays
13. 13.True or false: a magnet is needed for the card-on-a-glass trick. (a) True (b) False
14. 14.🥛 Does a magnetic chess set work by air pressure or by magnetism? (a) magnetism (b) air pressure
15. 15.🔮 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 grow plants (d) to make it rain
16. 16.🧺 Three of these are needed for the card-on-a-glass trick. Which one is NOT needed? (a) a stiff postcard (b) a balloon (c) a towel (d) a glass of water
17. 17.True or false: a towel is not needed for the card-on-a-glass trick. (a) False (b) True
18. 18.⚖️ Fair test — does the card stay on with a full glass and with a half-full glass? True or false: the same glass is the one thing we change. (a) False (b) True
19. 19.🥛 Which of these works by air pressure? (a) a magnetic chess set (b) a bicycle pump (c) a magnetic pin holder (d) a compass needle
20. 20.⚖️ 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) whether the card stays (b) how full the glass is (c) the way we turn it (d) the same card
21. 21.🧺 Three of these are needed for the card-on-a-glass trick. Which one is NOT needed? (a) a battery cell (b) a stiff postcard (c) a glass of water (d) a sink or a bucket
22. 22.📘 Air presses on everything around us. What is this push called? (a) magnetism (b) sunlight (c) friction (d) air pressure
23. 23.⚖️ 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
24. 24.🧺 Which of these is needed for the card-on-a-glass trick? (a) a magnet (b) a mirror (c) turmeric powder (d) a glass of water
25. 25.🛟 Why is a plastic cup safer than a glass for small children here? (a) it is magnetic (b) it is heavier (c) it is hotter (d) it will not break
26. 26.⚖️ 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) True (b) False
27. 27.True or false: a sink or a bucket is needed for the card-on-a-glass trick. (a) True (b) False
28. 28.🧺 Do we need a balloon for the card-on-a-glass trick? (a) needed (b) not needed
29. 29.True or false: a balloon is needed for the card-on-a-glass trick. (a) False (b) True
30. 30.True or false: a glass of water is needed for the card-on-a-glass trick. (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 sink or a bucket (c) a towel (d) a battery cell
32. 32.🥛 What holds the card up against the upside-down glass? (a) air pushing up (b) glue on the card (c) a magnet (d) the cold water
33. 33.🧺 Do we need yeast for the card-on-a-glass trick? (a) needed (b) not needed
34. 34.🥛 Which of these works by air pressure? (a) a fridge magnet (b) a magnetic chess set (c) a suction hook (d) a compass needle
35. 35.True or false: a bicycle pump works by air pressure. (a) False (b) True
36. 36.True or false: a suction hook works by magnetism. (a) True (b) False
37. 37.🔮 Predict: you squeeze an empty plastic bottle with its cap screwed on tight. Why is it hard? (a) air inside pushes back (b) water is hiding there (c) the bottle is magnetic (d) the cap is sticky
38. 38.🔍 Which is the odd one out? (a) a compass needle (b) a drinking straw (c) a suction hook (d) a vacuum cleaner
39. 39.🧺 Which of these is not needed for the card-on-a-glass trick? (a) a mirror (b) a towel (c) a stiff postcard (d) a glass of water
40. 40.🧺 Do we need a towel for the card-on-a-glass trick? (a) not needed (b) needed

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