Static Electricity Experiment Worksheet

Science experiments lesson 21: Static electricity: comb and paper bits · Set 930 · 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.⚡ A rubbed comb is held near dry hair. What happens? (a) does not move (b) jumps to the comb
2. 2.⚖️ 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
3. 3.⚖️ Fair test — does rubbing the comb more times pick up more paper bits? What do we do with “distance to the paper”? (a) we keep it the same (b) we change it (c) we measure it
4. 4.⚡ Which of these jumps to a charged comb? (a) a heavy book (b) a brick (c) tiny paper bits (d) a pebble
5. 5.⚡ Why does the comb trick work best on a dry day? (a) wet hair is magnetic (b) damp air leaks charge (c) water adds charge (d) dry days are noisy
6. 6.⚖️ Fair test — does rubbing the comb more times pick up more paper bits? Which of these is what we measure? (a) the same hair (b) number of rubs (c) distance to the paper (d) paper bits picked up
7. 7.True or false: a brick jumps to a charged comb. (a) True (b) False
8. 8.⚡ A rubbed comb is held near tiny paper bits. What happens? (a) jumps to the comb (b) does not move
9. 9.🛟 Static from a comb is safe. Which electricity must children never play with? (a) a rubbed balloon (b) plug points at home (c) a rubbed plastic comb (d) paper bits on a comb
10. 10.⚡ A rubbed comb is held near a brick. What happens? (a) does not move (b) jumps to the comb
11. 11.⚖️ Fair test — does rubbing the comb more times pick up more paper bits? True or false: number of rubs is what we measure. (a) False (b) True
12. 12.True or false: thermocol bits does not move to a charged comb. (a) True (b) False
13. 13.🔍 Which is the odd one out? (a) a pebble (b) a brick (c) a steel spoon (d) puffed rice
14. 14.🔍 Which is the odd one out? (a) a pebble (b) dry hair (c) puffed rice (d) tiny paper bits
15. 15.🧺 Which of these is needed for the static comb? (a) a battery cell (b) a magnet (c) yeast (d) tiny paper bits
16. 16.⚡ Which big natural spark is caused by static electricity? (a) the wind (b) a rainbow (c) lightning (d) dew
17. 17.⚖️ Fair test — does rubbing the comb more times pick up more paper bits? True or false: the same hair is the one thing we change. (a) False (b) True
18. 18.🛟 There is lightning outside. Where is it safest to be? (a) on a rooftop (b) indoors (c) in an open field (d) under a tall tree
19. 19.True or false: tiny paper bits jumps to a charged comb. (a) False (b) True
20. 20.True or false: a plastic comb is needed for the static comb. (a) True (b) False
21. 21.🧺 Do we need a plastic comb for the static comb? (a) not needed (b) needed
22. 22.⚡ A rubbed comb is held near thermocol bits. What happens? (a) jumps to the comb (b) does not move
23. 23.⚖️ Fair test — does rubbing the comb more times pick up more paper bits? What do we do with “the same hair”? (a) we keep it the same (b) we measure it (c) we change it
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) number of rubs (b) paper bits picked up (c) the same comb (d) the paper bit size
25. 25.🔍 Which is the odd one out? (a) dry hair (b) a steel spoon (c) a thin water stream (d) puffed rice
26. 26.🔍 Which is the odd one out? (a) thermocol bits (b) a thin water stream (c) a heavy book (d) dry hair
27. 27.🧺 Three of these are needed for the static comb. Which one is NOT needed? (a) a plastic comb (b) tiny paper bits (c) dry hair (d) vinegar
28. 28.🔮 Predict: a charged comb is held near a thin stream of tap water. What happens? (a) the water freezes (b) nothing at all (c) the stream bends (d) the water stops
29. 29.⚖️ 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
30. 30.🧺 Do we need a mirror for the static comb? (a) needed (b) not needed
31. 31.🧺 Do we need dry hair for the static comb? (a) needed (b) not needed
32. 32.True or false: tiny paper bits does not move to a charged comb. (a) False (b) True
33. 33.⚡ Why does the rubbed comb pull the paper bits? (a) it is a magnet (b) it has static charge (c) it is hot (d) it is sticky
34. 34.⚡ A rubbed comb is held near a steel spoon. What happens? (a) jumps to the comb (b) does not move
35. 35.🧺 Three of these are needed for the static comb. Which one is NOT needed? (a) a balloon (b) tiny paper bits (c) yeast (d) dry hair
36. 36.True or false: dry hair is not needed for the static comb. (a) False (b) True
37. 37.🔮 Predict: you rub a balloon on dry hair and hold it on a wall. What happens? (a) it sticks for a while (b) it falls straight down (c) it turns into water (d) it bursts at once
38. 38.🧺 Which of these is not needed for the static comb? (a) a plastic comb (b) a balloon (c) turmeric powder (d) dry hair
39. 39.True or false: tiny paper bits is not needed for the static comb. (a) True (b) False
40. 40.⚡ Which of these jumps to a charged comb? (a) dry hair (b) a brick (c) a pebble (d) a heavy book

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