Static Electricity Experiment Worksheet

Science experiments lesson 21: Static electricity: comb and paper bits · Set 834 · 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) not needed (b) needed
2. 2.🔮 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 water stops (d) the stream bends
3. 3.⚖️ Fair test — does rubbing the comb more times pick up more paper bits? Which of these is the one thing we change? (a) the paper bit size (b) the same comb (c) distance to the paper (d) number of rubs
4. 4.⚡ Which of these jumps to a charged comb? (a) thermocol bits (b) a brick (c) a steel spoon (d) a pebble
5. 5.⚖️ Fair test — does rubbing the comb more times pick up more paper bits? What do we do with “the same hair”? (a) we measure it (b) we keep it the same (c) we change it
6. 6.True or false: yeast is needed for the static comb. (a) False (b) True
7. 7.⚡ A rubbed comb is held near dry hair. What happens? (a) jumps to the comb (b) does not move
8. 8.⚖️ Fair test — does rubbing the comb more times pick up more paper bits? What do we do with “number of rubs”? (a) we measure it (b) we change it (c) we keep it the same
9. 9.🧺 Do we need a plastic comb for the static comb? (a) needed (b) not needed
10. 10.🧺 Which of these is needed for the static comb? (a) vinegar (b) a battery cell (c) turmeric powder (d) a balloon
11. 11.⚡ Why does the comb trick work best on a dry day? (a) dry days are noisy (b) wet hair is magnetic (c) damp air leaks charge (d) water adds charge
12. 12.🧺 Do we need a balloon for the static comb? (a) not needed (b) needed
13. 13.⚖️ Fair test — does rubbing the comb more times pick up more paper bits? Which of these is what we measure? (a) number of rubs (b) the paper bit size (c) the same hair (d) paper bits picked up
14. 14.True or false: a magnet is needed for the static comb. (a) True (b) False
15. 15.⚖️ Fair test — does rubbing the comb more times pick up more paper bits? True or false: distance to the paper is what we measure. (a) False (b) True
16. 16.🔮 Predict: you rub a balloon on dry hair and hold it on a wall. What happens? (a) it bursts at once (b) it falls straight down (c) it sticks for a while (d) it turns into water
17. 17.⚖️ Fair test — does rubbing the comb more times pick up more paper bits? True or false: the same comb is kept the same. (a) True (b) False
18. 18.⚡ You comb dry hair and hold the comb near tiny paper bits. What happens? (a) they turn wet (b) they turn blue (c) nothing happens (d) the bits jump to it
19. 19.True or false: dry hair does not move to a charged comb. (a) False (b) True
20. 20.⚡ Which of these does not move to a charged comb? (a) thermocol bits (b) dry hair (c) a steel spoon (d) a thin water stream
21. 21.🔍 Which is the odd one out? (a) a brick (b) thermocol bits (c) a pebble (d) a steel spoon
22. 22.⚖️ 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 measure it (c) we change it
23. 23.🔮 Predict: you wet the comb before trying again. What happens? (a) it lights up (b) it hardly works (c) it becomes a magnet (d) it works better
24. 24.🛟 Static from a comb is safe. Which electricity must children never play with? (a) a rubbed balloon (b) a rubbed plastic comb (c) plug points at home (d) paper bits on a comb
25. 25.🧺 Three of these are needed for the static comb. Which one is NOT needed? (a) vinegar (b) a balloon (c) dry hair (d) tiny paper bits
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.🧺 Three of these are needed for the static comb. Which one is NOT needed? (a) tiny paper bits (b) a plastic comb (c) yeast (d) a balloon
28. 28.True or false: a thin water stream does not move to a charged comb. (a) True (b) False
29. 29.🔍 Which is the odd one out? (a) a pebble (b) a brick (c) tiny paper bits (d) a steel spoon
30. 30.📘 Rubbing moves tiny charges. What do we call the charge that builds up? (a) static electricity (b) gravity (c) sunlight (d) magnetism
31. 31.⚖️ 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
32. 32.🧺 Do we need a battery cell for the static comb? (a) not needed (b) needed
33. 33.🧺 Which of these is not needed for the static comb? (a) dry hair (b) tiny paper bits (c) a battery cell (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 comb”? (a) we measure it (b) we keep it the same (c) we change it
35. 35.🧺 Do we need vinegar for the static comb? (a) not needed (b) needed
36. 36.⚡ Which of these does not move to a charged comb? (a) puffed rice (b) a heavy book (c) a thin water stream (d) dry hair
37. 37.🧺 Which of these is not needed for the static comb? (a) a balloon (b) a plastic comb (c) yeast (d) tiny paper bits
38. 38.🧺 Three of these are needed for the static comb. Which one is NOT needed? (a) dry hair (b) turmeric powder (c) tiny paper bits (d) a plastic comb
39. 39.🔍 Which is the odd one out? (a) puffed rice (b) a pebble (c) tiny paper bits (d) a thin water stream
40. 40.⚡ Which big natural spark is caused by static electricity? (a) lightning (b) dew (c) the wind (d) a rainbow

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