Air Pressure Experiment Worksheet

Science experiments lesson 6: Air pressure: the card on a glass · Set 867 · 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.🛟 Where should you do the card-and-glass trick? (a) over a sink or bucket (b) on a bed (c) over a laptop (d) near a plug point
2. 2.🥛 What holds the card up against the upside-down glass? (a) glue on the card (b) the cold water (c) a magnet (d) air pushing up
3. 3.🔍 Which is the odd one out? (a) a bicycle pump (b) a vacuum cleaner (c) a suction hook (d) a magnetic chess set
4. 4.🧺 Do we need a magnet for the card-on-a-glass trick? (a) needed (b) not needed
5. 5.🔍 Which is the odd one out? (a) a bicycle pump (b) a magnetic chess set (c) a compass needle (d) a fridge magnet
6. 6.🧺 Do we need a sink or a bucket for the card-on-a-glass trick? (a) not needed (b) needed
7. 7.🧺 Three of these are needed for the card-on-a-glass trick. Which one is NOT needed? (a) a towel (b) a balloon (c) a sink or a bucket (d) a stiff postcard
8. 8.🥛 Does a compass needle work by air pressure or by magnetism? (a) magnetism (b) air pressure
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) False (b) True
10. 10.True or false: a magnetic chess set works by air pressure. (a) False (b) True
11. 11.True or false: a battery cell is needed for the card-on-a-glass trick. (a) False (b) True
12. 12.🧺 Which of these is needed for the card-on-a-glass trick? (a) a battery cell (b) a balloon (c) a magnet (d) a sink or a bucket
13. 13.🛟 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 magnetic (d) it is heavier
14. 14.🔮 Predict: you blow up a balloon. What fills it? (a) smoke (b) air (c) sand (d) water
15. 15.🥛 Does a vacuum cleaner work by air pressure or by magnetism? (a) magnetism (b) air pressure
16. 16.True or false: turmeric powder is needed for the card-on-a-glass trick. (a) True (b) False
17. 17.⚖️ 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) whether the card stays (c) how full the glass is (d) the same card
18. 18.⚖️ 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
19. 19.🧺 Which of these is not needed for the card-on-a-glass trick? (a) a sink or a bucket (b) a magnet (c) a stiff postcard (d) a glass of water
20. 20.⚖️ 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
21. 21.🔮 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 catch any spills (d) to grow plants
22. 22.🧺 Which of these is needed for the card-on-a-glass trick? (a) a magnet (b) a balloon (c) a towel (d) turmeric powder
23. 23.🔍 Which is the odd one out? (a) a magnetic pin holder (b) a magnetic chess set (c) a drinking straw (d) a compass needle
24. 24.⚖️ 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) whether the card stays (c) how full the glass is (d) the way we turn it
25. 25.⚖️ 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) whether the card stays (b) the same card (c) how full the glass is
26. 26.🧺 Which of these is not needed for the card-on-a-glass trick? (a) a sink or a bucket (b) yeast (c) a towel (d) a stiff postcard
27. 27.🥛 Which of these works by air pressure? (a) a compass needle (b) a suction hook (c) a fridge magnet (d) a magnetic pin holder
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.🥛 Does a magnetic pin holder work by air pressure or by magnetism? (a) magnetism (b) air pressure
30. 30.True or false: a compass needle works by magnetism. (a) False (b) True
31. 31.🧺 Three of these are needed for the card-on-a-glass trick. Which one is NOT needed? (a) a glass of water (b) a sink or a bucket (c) a stiff postcard (d) yeast
32. 32.True or false: a fridge magnet works by magnetism. (a) True (b) False
33. 33.🥛 Does a bicycle pump work by air pressure or by magnetism? (a) air pressure (b) magnetism
34. 34.🥛 Which of these works by magnetism? (a) a bicycle pump (b) a vacuum cleaner (c) a fridge magnet (d) a drinking straw
35. 35.🧺 Do we need a mirror for the card-on-a-glass trick? (a) needed (b) not needed
36. 36.🥤 Why does juice go up a drinking straw when you sip? (a) the straw is magnetic (b) air pushes it up (c) juice likes plastic (d) the straw is hot
37. 37.⚖️ 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 measure it (b) we change it (c) we keep it the same
38. 38.True or false: a drinking straw works by magnetism. (a) False (b) True
39. 39.🥛 Does a magnetic chess set work by air pressure or by magnetism? (a) air pressure (b) magnetism
40. 40.🧺 Three of these are needed for the card-on-a-glass trick. Which one is NOT needed? (a) a stiff postcard (b) a sink or a bucket (c) a glass of water (d) a mirror

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