Air Pressure Experiment Worksheet

Science experiments lesson 6: Air pressure: the card on a glass · Set 751 · 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 bicycle pump work by air pressure or by magnetism? (a) air pressure (b) magnetism
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) yeast (c) a sink or a bucket (d) a stiff postcard
3. 3.🧺 Which of these is needed for the card-on-a-glass trick? (a) a magnet (b) a battery cell (c) a towel (d) a mirror
4. 4.🔍 Which is the odd one out? (a) a medicine dropper (b) a drinking straw (c) a vacuum cleaner (d) a fridge magnet
5. 5.🧺 Do we need a magnet for the card-on-a-glass trick? (a) not needed (b) needed
6. 6.🛟 Why is a plastic cup safer than a glass for small children here? (a) it will not break (b) it is hotter (c) it is heavier (d) it is magnetic
7. 7.⚖️ 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
8. 8.⚖️ 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
9. 9.🧺 Which of these is needed for the card-on-a-glass trick? (a) yeast (b) a sink or a bucket (c) a magnet (d) turmeric powder
10. 10.🥛 Which of these works by air pressure? (a) a magnetic chess set (b) a fridge magnet (c) a compass needle (d) a medicine dropper
11. 11.🧺 Do we need a mirror for the card-on-a-glass trick? (a) needed (b) not needed
12. 12.True or false: a fridge magnet works by magnetism. (a) False (b) True
13. 13.⚖️ 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) whether the card stays (c) the way we turn it
14. 14.True or false: a suction hook works by air pressure. (a) True (b) False
15. 15.True or false: a magnetic pin holder works by magnetism. (a) False (b) True
16. 16.🧺 Do we need yeast for the card-on-a-glass trick? (a) needed (b) not needed
17. 17.⚖️ 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
18. 18.⚖️ 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) True (b) False
19. 19.🧺 Do we need a battery cell for the card-on-a-glass trick? (a) not needed (b) needed
20. 20.⚖️ 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 keep it the same (c) we change it
21. 21.🛟 Where should you do the card-and-glass trick? (a) over a sink or bucket (b) near a plug point (c) on a bed (d) over a laptop
22. 22.🥛 Which of these works by magnetism? (a) a medicine dropper (b) a drinking straw (c) a bicycle pump (d) a fridge magnet
23. 23.🥤 Why does juice go up a drinking straw when you sip? (a) juice likes plastic (b) the straw is magnetic (c) air pushes it up (d) the straw is hot
24. 24.🧺 Do we need a sink or a bucket for the card-on-a-glass trick? (a) not needed (b) needed
25. 25.🧺 Which of these is not needed for the card-on-a-glass trick? (a) a sink or a bucket (b) a stiff postcard (c) a towel (d) a magnet
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.🥛 Does a suction hook work by air pressure or by magnetism? (a) magnetism (b) air pressure
28. 28.True or false: a stiff postcard is not needed for the card-on-a-glass trick. (a) False (b) True
29. 29.🥛 Which of these works by magnetism? (a) a magnetic chess set (b) a bicycle pump (c) a medicine dropper (d) a vacuum cleaner
30. 30.🥛 Which of these works by magnetism? (a) a drinking straw (b) a vacuum cleaner (c) a compass needle (d) a suction hook
31. 31.True or false: a magnet is not needed for the card-on-a-glass trick. (a) False (b) True
32. 32.🥛 Does a compass needle work by air pressure or by magnetism? (a) magnetism (b) air pressure
33. 33.🧺 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 magnet (d) a stiff postcard
34. 34.🧺 Three of these are needed for the card-on-a-glass trick. Which one is NOT needed? (a) a glass of water (b) a battery cell (c) a sink or a bucket (d) a stiff postcard
35. 35.🔍 Which is the odd one out? (a) a magnetic chess set (b) a magnetic pin holder (c) a fridge magnet (d) a medicine dropper
36. 36.⚖️ 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 card (b) the way we turn it (c) whether the card stays (d) how full the glass is
37. 37.🧺 Which of these is needed for the card-on-a-glass trick? (a) a glass of water (b) turmeric powder (c) a battery cell (d) a balloon
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 card (b) the same glass (c) whether the card stays (d) the way we turn it
39. 39.🧺 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 stiff postcard (d) a balloon
40. 40.🧺 Do we need turmeric powder for the card-on-a-glass trick? (a) needed (b) not needed

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