Air Pressure Experiment Worksheet

Science experiments lesson 6: Air pressure: the card on a glass · Set 834 · 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 is a plastic cup safer than a glass for small children here? (a) it is heavier (b) it is hotter (c) it is magnetic (d) it will not break
2. 2.⚖️ 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
3. 3.🧺 Which of these is needed for the card-on-a-glass trick? (a) yeast (b) a mirror (c) a sink or a bucket (d) turmeric powder
4. 4.🥛 Which of these works by air pressure? (a) a bicycle pump (b) a magnetic pin holder (c) a fridge magnet (d) a magnetic chess set
5. 5.🧺 Do we need a mirror for the card-on-a-glass trick? (a) not needed (b) needed
6. 6.🥛 Does a magnetic chess set work by air pressure or by magnetism? (a) air pressure (b) magnetism
7. 7.🧺 Do we need a glass of water for the card-on-a-glass trick? (a) needed (b) not needed
8. 8.🥛 Does a vacuum cleaner work by air pressure or by magnetism? (a) air pressure (b) magnetism
9. 9.🧺 Which of these is not needed for the card-on-a-glass trick? (a) a sink or a bucket (b) a glass of water (c) a battery cell (d) a towel
10. 10.True or false: a sink or a bucket is needed for the card-on-a-glass trick. (a) True (b) False
11. 11.🧺 Three of these are needed for the card-on-a-glass trick. Which one is NOT needed? (a) a mirror (b) a towel (c) a glass of water (d) a stiff postcard
12. 12.True or false: a bicycle pump 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 the one thing we change? (a) the way we turn it (b) the same card (c) how full the glass is (d) the same glass
14. 14.⚖️ 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) True (b) False
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) how full the glass is (b) whether the card stays (c) the same glass
16. 16.🥛 Which of these works by air pressure? (a) a fridge magnet (b) a medicine dropper (c) a magnetic pin holder (d) a magnetic chess set
17. 17.True or false: yeast is needed for the card-on-a-glass trick. (a) True (b) False
18. 18.🔍 Which is the odd one out? (a) a bicycle pump (b) a medicine dropper (c) a suction hook (d) a compass needle
19. 19.📘 Air presses on everything around us. What is this push called? (a) friction (b) sunlight (c) air pressure (d) magnetism
20. 20.🧺 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
21. 21.🧺 Which of these is needed for the card-on-a-glass trick? (a) a battery cell (b) yeast (c) a glass of water (d) turmeric powder
22. 22.⚖️ 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) how full the glass is (c) the way we turn it (d) whether the card stays
23. 23.⚖️ 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) whether the card stays (c) how full the glass is
24. 24.True or false: a magnet is needed for the card-on-a-glass trick. (a) True (b) False
25. 25.🛟 Where should you do the card-and-glass trick? (a) near a plug point (b) over a laptop (c) over a sink or bucket (d) on a bed
26. 26.🥛 Does a bicycle pump work by air pressure or by magnetism? (a) magnetism (b) air pressure
27. 27.🧺 Three of these are needed for the card-on-a-glass trick. Which one is NOT needed? (a) a stiff postcard (b) a towel (c) a magnet (d) a glass of water
28. 28.🧺 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 towel (c) a glass of water (d) yeast
29. 29.True or false: a bicycle pump works by air pressure. (a) False (b) True
30. 30.True or false: a magnetic chess set works by air pressure. (a) True (b) False
31. 31.🥛 Which of these works by magnetism? (a) a medicine dropper (b) a bicycle pump (c) a vacuum cleaner (d) a magnetic pin holder
32. 32.🔍 Which is the odd one out? (a) a bicycle pump (b) a drinking straw (c) a vacuum cleaner (d) a fridge magnet
33. 33.🧺 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) a balloon (d) a towel
34. 34.🔍 You turn the full glass upside down, holding the card, then let go of the card. What happens? (a) the glass breaks (b) the water turns to ice (c) the card flies away (d) the card stays on
35. 35.🥛 Why is it best to fill the glass right to the top? (a) water is heavier (b) the card gets wet (c) it looks nicer (d) little air left inside
36. 36.⚖️ 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
37. 37.⚖️ Fair test — does the card stay on with a full glass and with a half-full glass? What do we do with “whether the card stays”? (a) we keep it the same (b) we change it (c) we measure it
38. 38.🧺 Do we need a sink or a bucket for the card-on-a-glass trick? (a) not needed (b) needed
39. 39.True or false: a medicine dropper works by air pressure. (a) False (b) True
40. 40.🔍 Which is the odd one out? (a) a compass needle (b) a magnetic pin holder (c) a medicine dropper (d) a fridge magnet

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