Static Electricity Experiment Worksheet

Science experiments lesson 21: Static electricity: comb and paper bits · Set 78 · 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.True or false: yeast is needed for the static comb. (a) True (b) False
2. 2.True or false: dry hair is not needed for the static comb. (a) True (b) False
3. 3.🔮 Predict: you wet the comb before trying again. What happens? (a) it hardly works (b) it becomes a magnet (c) it lights up (d) it works better
4. 4.True or false: tiny paper bits is not needed for the static comb. (a) True (b) False
5. 5.⚡ Which of these does not move to a charged comb? (a) tiny paper bits (b) thermocol bits (c) dry hair (d) a steel spoon
6. 6.⚡ Why does the rubbed comb pull the paper bits? (a) it has static charge (b) it is hot (c) it is sticky (d) it is a magnet
7. 7.🧺 Do we need dry hair for the static comb? (a) needed (b) not needed
8. 8.⚖️ 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) True (b) False
9. 9.🔮 Predict: you rub a balloon on dry hair and hold it on a wall. What happens? (a) it sticks for a while (b) it bursts at once (c) it turns into water (d) it falls straight down
10. 10.⚖️ Fair test — does rubbing the comb more times pick up more paper bits? Which of these is kept the same? (a) number of rubs (b) distance to the paper (c) paper bits picked up
11. 11.⚡ Which of these does not move to a charged comb? (a) tiny paper bits (b) a thin water stream (c) thermocol bits (d) a heavy book
12. 12.🧺 Do we need a magnet for the static comb? (a) needed (b) not needed
13. 13.⚖️ Fair test — does rubbing the comb more times pick up more paper bits? What do we do with “distance to the paper”? (a) we change it (b) we keep it the same (c) we measure it
14. 14.🧺 Three of these are needed for the static comb. Which one is NOT needed? (a) a plastic comb (b) tiny paper bits (c) turmeric powder (d) a balloon
15. 15.⚡ Which of these does not move to a charged comb? (a) puffed rice (b) thermocol bits (c) a pebble (d) dry hair
16. 16.🔍 Which is the odd one out? (a) a heavy book (b) a brick (c) a pebble (d) puffed rice
17. 17.🧺 Three of these are needed for the static comb. Which one is NOT needed? (a) dry hair (b) a plastic comb (c) a balloon (d) vinegar
18. 18.⚖️ Fair test — does rubbing the comb more times pick up more paper bits? Which of these is kept the same? (a) paper bits picked up (b) the same comb (c) number of rubs
19. 19.🔍 Which is the odd one out? (a) a heavy book (b) a thin water stream (c) a brick (d) a pebble
20. 20.🔍 Which is the odd one out? (a) a thin water stream (b) a heavy book (c) tiny paper bits (d) puffed rice
21. 21.⚡ Which of these jumps to a charged comb? (a) a brick (b) puffed rice (c) a steel spoon (d) a heavy book
22. 22.🧺 Three of these are needed for the static comb. Which one is NOT needed? (a) dry hair (b) tiny paper bits (c) yeast (d) a plastic comb
23. 23.🧺 Which of these is not needed for the static comb? (a) a balloon (b) tiny paper bits (c) turmeric powder (d) dry hair
24. 24.🧺 Do we need a balloon for the static comb? (a) needed (b) not needed
25. 25.🧺 Three of these are needed for the static comb. Which one is NOT needed? (a) a plastic comb (b) a mirror (c) dry hair (d) tiny paper bits
26. 26.⚖️ Fair test — does rubbing the comb more times pick up more paper bits? What do we do with “the same comb”? (a) we change it (b) we keep it the same (c) we measure it
27. 27.True or false: tiny paper bits jumps to a charged comb. (a) False (b) True
28. 28.True or false: vinegar is needed for the static comb. (a) True (b) False
29. 29.True or false: yeast is not needed for the static comb. (a) False (b) True
30. 30.True or false: a balloon is not needed for the static comb. (a) False (b) True
31. 31.🛟 Static from a comb is safe. Which electricity must children never play with? (a) a rubbed plastic comb (b) a rubbed balloon (c) paper bits on a comb (d) plug points at home
32. 32.⚡ Why does the comb trick work best on a dry day? (a) wet hair is magnetic (b) dry days are noisy (c) water adds charge (d) damp air leaks charge
33. 33.⚖️ Fair test — does rubbing the comb more times pick up more paper bits? What do we do with “paper bits picked up”? (a) we change it (b) we measure it (c) we keep it the same
34. 34.True or false: a thin water stream does not move to a charged comb. (a) False (b) True
35. 35.⚖️ 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) the same comb (c) paper bits picked up (d) number of rubs
36. 36.🧺 Do we need yeast for the static comb? (a) not needed (b) needed
37. 37.🧺 Three of these are needed for the static comb. Which one is NOT needed? (a) a balloon (b) a plastic comb (c) dry hair (d) a battery cell
38. 38.🔍 Which is the odd one out? (a) tiny paper bits (b) dry hair (c) a thin water stream (d) a brick
39. 39.True or false: a balloon is needed for the static comb. (a) True (b) False
40. 40.True or false: a battery cell is needed for the static comb. (a) True (b) False

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