Static Electricity Experiment Worksheet

Science experiments lesson 21: Static electricity: comb and paper bits · Set 50 · 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.📘 Rubbing moves tiny charges. What do we call the charge that builds up? (a) magnetism (b) static electricity (c) sunlight (d) gravity
2. 2.🔮 Predict: a charged comb is held near a thin stream of tap water. What happens? (a) the water stops (b) nothing at all (c) the stream bends (d) the water freezes
3. 3.⚡ Which of these jumps to a charged comb? (a) a brick (b) tiny paper bits (c) a heavy book (d) a steel spoon
4. 4.🧺 Which of these is needed for the static comb? (a) a magnet (b) vinegar (c) turmeric powder (d) a balloon
5. 5.⚖️ Fair test — does rubbing the comb more times pick up more paper bits? Which of these is what we measure? (a) paper bits picked up (b) the paper bit size (c) distance to the paper (d) the same comb
6. 6.🔍 Which is the odd one out? (a) a brick (b) a heavy book (c) a steel spoon (d) tiny paper bits
7. 7.⚡ You comb dry hair and hold the comb near tiny paper bits. What happens? (a) they turn blue (b) they turn wet (c) the bits jump to it (d) nothing happens
8. 8.True or false: a steel spoon does not move to a charged comb. (a) False (b) True
9. 9.⚡ A rubbed comb is held near puffed rice. What happens? (a) jumps to the comb (b) does not move
10. 10.🧺 Three of these are needed for the static comb. Which one is NOT needed? (a) a plastic comb (b) dry hair (c) a balloon (d) a mirror
11. 11.🧺 Do we need yeast for the static comb? (a) needed (b) not needed
12. 12.🧺 Do we need tiny paper bits for the static comb? (a) not needed (b) needed
13. 13.⚖️ 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
14. 14.🧺 Do we need dry hair for the static comb? (a) needed (b) not needed
15. 15.🛟 There is lightning outside. Where is it safest to be? (a) under a tall tree (b) indoors (c) on a rooftop (d) in an open field
16. 16.🧺 Three of these are needed for the static comb. Which one is NOT needed? (a) a balloon (b) dry hair (c) tiny paper bits (d) a magnet
17. 17.🔮 Predict: you rub a balloon on dry hair and hold it on a wall. What happens? (a) it turns into water (b) it falls straight down (c) it bursts at once (d) it sticks for a while
18. 18.🔮 Predict: you wet the comb before trying again. What happens? (a) it becomes a magnet (b) it lights up (c) it works better (d) it hardly works
19. 19.True or false: a steel spoon jumps to a charged comb. (a) True (b) False
20. 20.⚡ Which of these does not move to a charged comb? (a) dry hair (b) puffed rice (c) a steel spoon (d) tiny paper bits
21. 21.⚡ A rubbed comb is held near a steel spoon. What happens? (a) does not move (b) jumps to the comb
22. 22.True or false: yeast is needed for the static comb. (a) False (b) True
23. 23.⚡ 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
24. 24.🧺 Three of these are needed for the static comb. Which one is NOT needed? (a) tiny paper bits (b) a balloon (c) dry hair (d) yeast
25. 25.⚖️ 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
26. 26.🧺 Do we need turmeric powder for the static comb? (a) not needed (b) needed
27. 27.🧺 Three of these are needed for the static comb. Which one is NOT needed? (a) a balloon (b) dry hair (c) turmeric powder (d) tiny paper bits
28. 28.🧺 Which of these is not needed for the static comb? (a) a plastic comb (b) a balloon (c) a battery cell (d) dry hair
29. 29.🧺 Which of these is not needed for the static comb? (a) a balloon (b) a mirror (c) tiny paper bits (d) dry hair
30. 30.⚡ Which of these jumps to a charged comb? (a) a steel spoon (b) a pebble (c) a brick (d) dry hair
31. 31.🧺 Do we need vinegar for the static comb? (a) needed (b) not needed
32. 32.🧺 Do we need a mirror for the static comb? (a) not needed (b) needed
33. 33.True or false: vinegar is not needed for the static comb. (a) False (b) True
34. 34.🧺 Which of these is needed for the static comb? (a) a plastic comb (b) vinegar (c) a battery cell (d) a mirror
35. 35.🔍 Which is the odd one out? (a) dry hair (b) a thin water stream (c) tiny paper bits (d) a brick
36. 36.⚖️ Fair test — does rubbing the comb more times pick up more paper bits? Which of these is the one thing we change? (a) paper bits picked up (b) the same hair (c) the paper bit size (d) number of rubs
37. 37.🛟 Static from a comb is safe. Which electricity must children never play with? (a) a rubbed balloon (b) a rubbed plastic comb (c) paper bits on a comb (d) plug points at home
38. 38.🧺 Which of these is needed for the static comb? (a) yeast (b) tiny paper bits (c) turmeric powder (d) a battery cell
39. 39.⚖️ Fair test — does rubbing the comb more times pick up more paper bits? True or false: the same hair is what we measure. (a) False (b) True
40. 40.⚡ A rubbed comb is held near dry hair. What happens? (a) does not move (b) jumps to the comb

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