Static Electricity Experiment Worksheet

Science experiments lesson 21: Static electricity: comb and paper bits · Set 819 · 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.🧺 Do we need yeast for the static comb? (a) needed (b) not needed
2. 2.🧺 Three of these are needed for the static comb. Which one is NOT needed? (a) tiny paper bits (b) dry hair (c) a mirror (d) a balloon
3. 3.True or false: tiny paper bits does not move to a charged comb. (a) True (b) False
4. 4.⚖️ 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) the same comb (c) paper bits picked up
5. 5.True or false: vinegar is not needed for the static comb. (a) False (b) True
6. 6.True or false: thermocol bits does not move to a charged comb. (a) False (b) True
7. 7.⚡ Which of these jumps to a charged comb? (a) a heavy book (b) thermocol bits (c) a steel spoon (d) a brick
8. 8.True or false: a battery cell is not needed for the static comb. (a) False (b) True
9. 9.🧺 Do we need a battery cell for the static comb? (a) not needed (b) needed
10. 10.⚡ A rubbed comb is held near tiny paper bits. What happens? (a) does not move (b) jumps to the comb
11. 11.⚡ A rubbed comb is held near dry hair. What happens? (a) does not move (b) jumps to the comb
12. 12.⚖️ Fair test — does rubbing the comb more times pick up more paper bits? Which of these is the one thing we change? (a) number of rubs (b) paper bits picked up (c) the same hair (d) the paper bit size
13. 13.⚖️ Fair test — does rubbing the comb more times pick up more paper bits? What do we do with “the same comb”? (a) we keep it the same (b) we measure it (c) we change it
14. 14.⚖️ 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
15. 15.🔮 Predict: a charged comb is held near a thin stream of tap water. What happens? (a) nothing at all (b) the water stops (c) the stream bends (d) the water freezes
16. 16.🛟 Static from a comb is safe. Which electricity must children never play with? (a) paper bits on a comb (b) plug points at home (c) a rubbed balloon (d) a rubbed plastic comb
17. 17.🧺 Which of these is not needed for the static comb? (a) a mirror (b) dry hair (c) tiny paper bits (d) a balloon
18. 18.⚖️ Fair test — does rubbing the comb more times pick up more paper bits? True or false: the same comb is kept the same. (a) False (b) True
19. 19.⚖️ 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) paper bits picked up (d) the same hair
20. 20.⚖️ Fair test — does rubbing the comb more times pick up more paper bits? What do we do with “the paper bit size”? (a) we measure it (b) we change it (c) we keep it the same
21. 21.⚡ Why does the comb trick work best on a dry day? (a) wet hair is magnetic (b) water adds charge (c) damp air leaks charge (d) dry days are noisy
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.⚖️ Fair test — does rubbing the comb more times pick up more paper bits? True or false: the same hair is what we measure. (a) True (b) False
24. 24.🔮 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
25. 25.True or false: tiny paper bits is needed for the static comb. (a) False (b) True
26. 26.⚡ Which of these jumps to a charged comb? (a) a brick (b) a pebble (c) a thin water stream (d) a heavy book
27. 27.True or false: a pebble jumps to a charged comb. (a) True (b) False
28. 28.⚖️ 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
29. 29.True or false: turmeric powder is needed for the static comb. (a) True (b) False
30. 30.🛟 There is lightning outside. Where is it safest to be? (a) in an open field (b) on a rooftop (c) under a tall tree (d) indoors
31. 31.🧺 Three of these are needed for the static comb. Which one is NOT needed? (a) a magnet (b) tiny paper bits (c) a plastic comb (d) a balloon
32. 32.True or false: yeast is not needed for the static comb. (a) True (b) False
33. 33.🧺 Which of these is needed for the static comb? (a) a plastic comb (b) a battery cell (c) a mirror (d) turmeric powder
34. 34.🧺 Which of these is needed for the static comb? (a) a magnet (b) a mirror (c) a balloon (d) vinegar
35. 35.🔍 Which is the odd one out? (a) dry hair (b) a pebble (c) a heavy book (d) a brick
36. 36.🧺 Do we need turmeric powder for the static comb? (a) not needed (b) needed
37. 37.🧺 Do we need vinegar for the static comb? (a) needed (b) not needed
38. 38.⚖️ 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 hair (c) number of rubs
39. 39.🧺 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
40. 40.⚖️ Fair test — does rubbing the comb more times pick up more paper bits? True or false: paper bits picked up is what we measure. (a) False (b) True

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