Static Electricity Experiment Worksheet

Science experiments lesson 21: Static electricity: comb and paper bits · Set 464 · 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.🧺 Three of these are needed for the static comb. Which one is NOT needed? (a) yeast (b) tiny paper bits (c) a plastic comb (d) a balloon
2. 2.⚡ Which of these jumps to a charged comb? (a) a pebble (b) a brick (c) dry hair (d) a heavy book
3. 3.⚡ Which of these jumps to a charged comb? (a) tiny paper bits (b) a heavy book (c) a steel spoon (d) a pebble
4. 4.🧺 Which of these is needed for the static comb? (a) a plastic comb (b) a battery cell (c) yeast (d) a magnet
5. 5.⚖️ 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) True (b) False
6. 6.🧺 Do we need tiny paper bits for the static comb? (a) not needed (b) needed
7. 7.⚖️ 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) distance to the paper (c) number of rubs (d) the same hair
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 change it (b) we measure it (c) we keep it the same
9. 9.True or false: vinegar is needed for the static comb. (a) True (b) False
10. 10.True or false: a magnet is needed for the static comb. (a) True (b) False
11. 11.⚖️ 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) False (b) True
12. 12.🧺 Which of these is not needed for the static comb? (a) a balloon (b) a mirror (c) dry hair (d) a plastic comb
13. 13.True or false: dry hair jumps to a charged comb. (a) False (b) True
14. 14.🧺 Three of these are needed for the static comb. Which one is NOT needed? (a) a plastic comb (b) tiny paper bits (c) a balloon (d) a mirror
15. 15.⚡ Why does the comb trick work best on a dry day? (a) dry days are noisy (b) wet hair is magnetic (c) water adds charge (d) damp air leaks charge
16. 16.🧺 Which of these is needed for the static comb? (a) a mirror (b) a balloon (c) yeast (d) vinegar
17. 17.⚖️ 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 same comb (c) paper bits picked up (d) the paper bit size
18. 18.⚡ Which big natural spark is caused by static electricity? (a) dew (b) the wind (c) lightning (d) a rainbow
19. 19.📘 Rubbing moves tiny charges. What do we call the charge that builds up? (a) static electricity (b) magnetism (c) gravity (d) sunlight
20. 20.True or false: a battery cell is not needed for the static comb. (a) False (b) True
21. 21.🔮 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
22. 22.⚡ A rubbed comb is held near dry hair. What happens? (a) does not move (b) jumps to the comb
23. 23.True or false: a mirror is not needed for the static comb. (a) False (b) True
24. 24.🧺 Do we need yeast for the static comb? (a) needed (b) not needed
25. 25.⚡ A rubbed comb is held near thermocol bits. What happens? (a) does not move (b) jumps to the comb
26. 26.⚖️ 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
27. 27.🧺 Do we need dry hair for the static comb? (a) needed (b) not needed
28. 28.⚡ A rubbed comb is held near a thin water stream. What happens? (a) jumps to the comb (b) does not move
29. 29.🔮 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 sticks for a while (d) it bursts at once
30. 30.🛟 Static from a comb is safe. Which electricity must children never play with? (a) paper bits on a comb (b) a rubbed plastic comb (c) plug points at home (d) a rubbed balloon
31. 31.⚖️ Fair test — does rubbing the comb more times pick up more paper bits? What do we do with “paper bits picked up”? (a) we measure it (b) we keep it the same (c) we change it
32. 32.🔍 Which is the odd one out? (a) puffed rice (b) dry hair (c) a pebble (d) tiny paper bits
33. 33.🔍 Which is the odd one out? (a) a pebble (b) thermocol bits (c) a heavy book (d) a steel spoon
34. 34.🧺 Do we need vinegar for the static comb? (a) needed (b) not needed
35. 35.🧺 Which of these is needed for the static comb? (a) tiny paper bits (b) a battery cell (c) turmeric powder (d) vinegar
36. 36.True or false: vinegar is not needed for the static comb. (a) False (b) True
37. 37.🧺 Do we need a balloon for the static comb? (a) needed (b) not needed
38. 38.True or false: turmeric powder is needed for the static comb. (a) False (b) True
39. 39.🧺 Three of these are needed for the static comb. Which one is NOT needed? (a) tiny paper bits (b) a plastic comb (c) a battery cell (d) dry hair
40. 40.⚡ You comb dry hair and hold the comb near tiny paper bits. What happens? (a) the bits jump to it (b) they turn blue (c) they turn wet (d) nothing happens

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