Static Electricity Experiment Worksheet

Science experiments lesson 21: Static electricity: comb and paper bits · Set 993 · 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.⚡ Which big natural spark is caused by static electricity? (a) dew (b) the wind (c) lightning (d) a rainbow
2. 2.⚖️ 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
3. 3.🔍 Which is the odd one out? (a) a thin water stream (b) puffed rice (c) tiny paper bits (d) a pebble
4. 4.🧺 Three of these are needed for the static comb. Which one is NOT needed? (a) yeast (b) a plastic comb (c) tiny paper bits (d) a balloon
5. 5.True or false: tiny paper bits does not move to a charged comb. (a) False (b) True
6. 6.⚡ 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
7. 7.🛟 Static from a comb is safe. Which electricity must children never play with? (a) a rubbed balloon (b) paper bits on a comb (c) a rubbed plastic comb (d) plug points at home
8. 8.🛟 There is lightning outside. Where is it safest to be? (a) under a tall tree (b) on a rooftop (c) in an open field (d) indoors
9. 9.⚖️ Fair test — does rubbing the comb more times pick up more paper bits? What do we do with “the paper bit size”? (a) we keep it the same (b) we measure it (c) we change it
10. 10.🧺 Which of these is not needed for the static comb? (a) a plastic comb (b) dry hair (c) a mirror (d) tiny paper bits
11. 11.🧺 Which of these is not needed for the static comb? (a) a balloon (b) tiny paper bits (c) dry hair (d) a battery cell
12. 12.🧺 Which of these is needed for the static comb? (a) a balloon (b) vinegar (c) yeast (d) a mirror
13. 13.True or false: yeast is not needed for the static comb. (a) False (b) True
14. 14.True or false: a magnet is not needed for the static comb. (a) False (b) True
15. 15.True or false: dry hair is needed for the static comb. (a) True (b) False
16. 16.True or false: dry hair is not needed for the static comb. (a) False (b) True
17. 17.⚖️ Fair test — does rubbing the comb more times pick up more paper bits? True or false: number of rubs is the one thing we change. (a) True (b) False
18. 18.True or false: puffed rice does not move to a charged comb. (a) False (b) True
19. 19.⚡ Which of these jumps to a charged comb? (a) a pebble (b) a steel spoon (c) tiny paper bits (d) a brick
20. 20.⚡ A rubbed comb is held near puffed rice. What happens? (a) jumps to the comb (b) does not move
21. 21.⚡ A rubbed comb is held near a thin water stream. What happens? (a) does not move (b) jumps to the comb
22. 22.🔍 Which is the odd one out? (a) tiny paper bits (b) puffed rice (c) thermocol bits (d) a steel spoon
23. 23.⚖️ Fair test — does rubbing the comb more times pick up more paper bits? True or false: the paper bit size is kept the same. (a) True (b) False
24. 24.⚡ Which of these jumps to a charged comb? (a) a heavy book (b) a steel spoon (c) a thin water stream (d) a pebble
25. 25.⚖️ Fair test — does rubbing the comb more times pick up more paper bits? Which of these is the one thing we change? (a) the same comb (b) paper bits picked up (c) number of rubs (d) distance to the paper
26. 26.⚡ A rubbed comb is held near a heavy book. What happens? (a) jumps to the comb (b) does not move
27. 27.🧺 Which of these is needed for the static comb? (a) a mirror (b) turmeric powder (c) a magnet (d) a plastic comb
28. 28.⚡ A rubbed comb is held near a brick. What happens? (a) does not move (b) jumps to the comb
29. 29.🔮 Predict: you rub a balloon on dry hair and hold it on a wall. What happens? (a) it sticks for a while (b) it turns into water (c) it bursts at once (d) it falls straight down
30. 30.⚖️ Fair test — does rubbing the comb more times pick up more paper bits? Which of these is kept the same? (a) distance to the paper (b) number of rubs (c) paper bits picked up
31. 31.True or false: dry hair does not move to a charged comb. (a) False (b) True
32. 32.🔮 Predict: you wet the comb before trying again. What happens? (a) it hardly works (b) it lights up (c) it becomes a magnet (d) it works better
33. 33.🧺 Three of these are needed for the static comb. Which one is NOT needed? (a) a mirror (b) tiny paper bits (c) dry hair (d) a plastic comb
34. 34.⚖️ 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
35. 35.🔍 Which is the odd one out? (a) a pebble (b) a heavy book (c) a steel spoon (d) dry hair
36. 36.⚖️ Fair test — does rubbing the comb more times pick up more paper bits? Which of these is what we measure? (a) distance to the paper (b) the paper bit size (c) paper bits picked up (d) the same comb
37. 37.🔍 Which is the odd one out? (a) a brick (b) a pebble (c) a thin water stream (d) a heavy book
38. 38.🧺 Do we need a battery cell for the static comb? (a) not needed (b) needed
39. 39.True or false: puffed rice jumps to a charged comb. (a) False (b) True
40. 40.⚡ A rubbed comb is held near a steel spoon. What happens? (a) does not move (b) jumps to the comb

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