Static Electricity Experiment Worksheet

Science experiments lesson 21: Static electricity: comb and paper bits · Set 837 · 40 questions

What you do (Rub and charge): 1. Tear a sheet of paper into tiny bits on a table. 2. Comb dry, clean hair quickly 10 times. 3. Hold the comb just above the paper bits and watch. 4. Try again with 20 combs, and count the bits each time.

1. 1.🔮 Predict: you rub a balloon on dry hair and hold it on a wall. What happens? (a) it turns into water (b) it sticks for a while (c) it falls straight down (d) it bursts at once
2. 2.🧺 Three of these are needed for the static comb. Which one is NOT needed? (a) a mirror (b) a balloon (c) a plastic comb (d) tiny paper bits
3. 3.🧺 Which of these is not needed for the static comb? (a) tiny paper bits (b) a plastic comb (c) a balloon (d) a mirror
4. 4.⚡ Which of these does not move to a charged comb? (a) tiny paper bits (b) puffed rice (c) dry hair (d) a pebble
5. 5.⚡ A rubbed comb is held near a brick. What happens? (a) does not move (b) jumps to the comb
6. 6.⚡ A rubbed comb is held near thermocol bits. What happens? (a) does not move (b) jumps to the comb
7. 7.🛟 There is lightning outside. Where is it safest to be? (a) indoors (b) in an open field (c) under a tall tree (d) on a rooftop
8. 8.⚖️ Fair test — does rubbing the comb more times pick up more paper bits? True or false: distance to the paper is the one thing we change. (a) False (b) True
9. 9.⚡ Which of these does not move to a charged comb? (a) a steel spoon (b) a thin water stream (c) thermocol bits (d) dry hair
10. 10.True or false: vinegar is needed for the static comb. (a) True (b) False
11. 11.🧺 Do we need a balloon for the static comb? (a) not needed (b) needed
12. 12.⚖️ Fair test — does rubbing the comb more times pick up more paper bits? True or false: the same comb is what we measure. (a) False (b) True
13. 13.🧺 Which of these is needed for the static comb? (a) a magnet (b) vinegar (c) yeast (d) tiny paper bits
14. 14.⚡ A rubbed comb is held near puffed rice. What happens? (a) jumps to the comb (b) does not move
15. 15.⚡ Which of these jumps to a charged comb? (a) a steel spoon (b) a thin water stream (c) a brick (d) a heavy book
16. 16.⚖️ Fair test — does rubbing the comb more times pick up more paper bits? Which of these is what we measure? (a) the same comb (b) number of rubs (c) distance to the paper (d) paper bits picked up
17. 17.🧺 Which of these is needed for the static comb? (a) a mirror (b) dry hair (c) a battery cell (d) a magnet
18. 18.⚡ Which of these does not move to a charged comb? (a) dry hair (b) tiny paper bits (c) a thin water stream (d) a brick
19. 19.🧺 Which of these is not needed for the static comb? (a) a balloon (b) dry hair (c) a plastic comb (d) yeast
20. 20.🧺 Do we need vinegar for the static comb? (a) not needed (b) needed
21. 21.🧺 Do we need a mirror for the static comb? (a) not needed (b) needed
22. 22.🧺 Three of these are needed for the static comb. Which one is NOT needed? (a) tiny paper bits (b) yeast (c) a balloon (d) dry hair
23. 23.⚖️ Fair test — does rubbing the comb more times pick up more paper bits? Which of these is kept the same? (a) the same comb (b) paper bits picked up (c) number of rubs
24. 24.⚖️ Fair test — does rubbing the comb more times pick up more paper bits? Which of these is the one thing we change? (a) distance to the paper (b) paper bits picked up (c) the same comb (d) number of rubs
25. 25.🔍 Which is the odd one out? (a) a thin water stream (b) tiny paper bits (c) a steel spoon (d) puffed rice
26. 26.⚡ A rubbed comb is held near a thin water stream. What happens? (a) does not move (b) jumps to the comb
27. 27.True or false: a mirror is needed for the static comb. (a) True (b) False
28. 28.True or false: a battery cell is needed for the static comb. (a) False (b) True
29. 29.⚖️ Fair test — does rubbing the comb more times pick up more paper bits? What do we do with “paper bits picked up”? (a) we keep it the same (b) we measure it (c) we change it
30. 30.⚡ Which of these does not move to a charged comb? (a) dry hair (b) tiny paper bits (c) a heavy book (d) a thin water stream
31. 31.🧺 Which of these is not needed for the static comb? (a) tiny paper bits (b) a plastic comb (c) a battery cell (d) dry hair
32. 32.🧺 Do we need a plastic comb for the static comb? (a) needed (b) not needed
33. 33.🔍 Which is the odd one out? (a) tiny paper bits (b) puffed rice (c) a heavy book (d) a thin water stream
34. 34.🔍 Which is the odd one out? (a) a brick (b) a steel spoon (c) dry hair (d) a heavy book
35. 35.🔍 Which is the odd one out? (a) a pebble (b) a steel spoon (c) puffed rice (d) a heavy book
36. 36.True or false: dry hair is needed for the static comb. (a) False (b) True
37. 37.True or false: a battery cell is not needed for the static comb. (a) False (b) True
38. 38.🔍 Which is the odd one out? (a) tiny paper bits (b) a thin water stream (c) thermocol bits (d) a brick
39. 39.⚖️ Fair test — does rubbing the comb more times pick up more paper bits? True or false: distance to the paper is kept the same. (a) False (b) True
40. 40.🔮 Predict: a charged comb is held near a thin stream of tap water. What happens? (a) nothing at all (b) the water freezes (c) the stream bends (d) the water stops

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