Air Pressure Experiment Worksheet

Science experiments lesson 6: Air pressure: the card on a glass · Set 340 · 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.🥤 Why does juice go up a drinking straw when you sip? (a) the straw is hot (b) juice likes plastic (c) the straw is magnetic (d) air pushes it up
2. 2.🧺 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 battery cell
3. 3.🥛 Which of these works by magnetism? (a) a vacuum cleaner (b) a bicycle pump (c) a magnetic chess set (d) a drinking straw
4. 4.🧺 Which of these is not needed for the card-on-a-glass trick? (a) a glass of water (b) a stiff postcard (c) yeast (d) a towel
5. 5.⚖️ 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 card (c) whether the card stays
6. 6.🛟 Why is a plastic cup safer than a glass for small children here? (a) it is hotter (b) it is magnetic (c) it is heavier (d) it will not break
7. 7.🥛 Does a drinking straw 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? 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.True or false: a glass of water is not needed for the card-on-a-glass trick. (a) False (b) True
10. 10.⚖️ 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) the way we turn it
11. 11.True or false: a fridge magnet works by magnetism. (a) True (b) False
12. 12.📘 Air presses on everything around us. What is this push called? (a) sunlight (b) friction (c) magnetism (d) air pressure
13. 13.True or false: a drinking straw works by magnetism. (a) True (b) False
14. 14.🧺 Which of these is not needed for the card-on-a-glass trick? (a) a towel (b) a stiff postcard (c) a magnet (d) a glass of water
15. 15.🔍 Which is the odd one out? (a) a compass needle (b) a fridge magnet (c) a drinking straw (d) a magnetic pin holder
16. 16.⚖️ 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
17. 17.🥛 Which of these works by air pressure? (a) a compass needle (b) a magnetic chess set (c) a bicycle pump (d) a magnetic pin holder
18. 18.🧺 Which of these is needed for the card-on-a-glass trick? (a) a balloon (b) a stiff postcard (c) a mirror (d) a magnet
19. 19.True or false: a vacuum cleaner works by magnetism. (a) False (b) True
20. 20.🧺 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
21. 21.🔮 Why do we try the card trick over a sink or a bucket? (a) to cool the glass (b) to make it rain (c) to grow plants (d) to catch any spills
22. 22.🧺 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 balloon (d) a towel
23. 23.🔍 Which is the odd one out? (a) a compass needle (b) a medicine dropper (c) a bicycle pump (d) a drinking straw
24. 24.⚖️ 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) False (b) True
25. 25.🧺 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 glass of water (c) yeast (d) a towel
26. 26.🥛 What holds the card up against the upside-down glass? (a) the cold water (b) a magnet (c) air pushing up (d) glue on the card
27. 27.True or false: a mirror is needed for the card-on-a-glass trick. (a) True (b) False
28. 28.True or false: a medicine dropper works by magnetism. (a) False (b) True
29. 29.🧺 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 towel (d) a mirror
30. 30.🥛 Which of these works by air pressure? (a) a magnetic chess set (b) a fridge magnet (c) a magnetic pin holder (d) a medicine dropper
31. 31.True or false: a drinking straw works by air pressure. (a) True (b) False
32. 32.⚖️ 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 same glass (c) how full the glass is (d) the way we turn it
33. 33.🧺 Do we need yeast for the card-on-a-glass trick? (a) not needed (b) needed
34. 34.🔍 Which is the odd one out? (a) a drinking straw (b) a suction hook (c) a bicycle pump (d) a magnetic pin holder
35. 35.🧺 Do we need a stiff postcard for the card-on-a-glass trick? (a) not needed (b) needed
36. 36.True or false: a magnetic pin holder works by magnetism. (a) True (b) False
37. 37.⚖️ 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
38. 38.🥛 Which of these works by magnetism? (a) a compass needle (b) a vacuum cleaner (c) a drinking straw (d) a suction hook
39. 39.🥛 Which of these works by magnetism? (a) a suction hook (b) a drinking straw (c) a bicycle pump (d) a fridge magnet
40. 40.⚖️ 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

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