Static Electricity Experiment Worksheet

Science experiments lesson 21: Static electricity: comb and paper bits · Set 212 · 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.⚖️ Fair test — does rubbing the comb more times pick up more paper bits? What do we do with “the same comb”? (a) we keep it the same (b) we change it (c) we measure it
2. 2.⚡ Why does the comb trick work best on a dry day? (a) water adds charge (b) wet hair is magnetic (c) dry days are noisy (d) damp air leaks charge
3. 3.🧺 Do we need turmeric powder for the static comb? (a) not needed (b) needed
4. 4.True or false: turmeric powder is not needed for the static comb. (a) False (b) True
5. 5.⚖️ 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
6. 6.⚡ Which of these jumps to a charged comb? (a) a brick (b) a thin water stream (c) a steel spoon (d) a heavy book
7. 7.🔮 Predict: you wet the comb before trying again. What happens? (a) it becomes a magnet (b) it hardly works (c) it lights up (d) it works better
8. 8.🛟 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
9. 9.🔮 Predict: a charged comb is held near a thin stream of tap water. What happens? (a) the water freezes (b) the stream bends (c) the water stops (d) nothing at all
10. 10.⚡ You comb dry hair and hold the comb near tiny paper bits. What happens? (a) they turn blue (b) nothing happens (c) the bits jump to it (d) they turn wet
11. 11.🧺 Three of these are needed for the static comb. Which one is NOT needed? (a) dry hair (b) a plastic comb (c) vinegar (d) a balloon
12. 12.⚡ Why does the rubbed comb pull the paper bits? (a) it is a magnet (b) it is sticky (c) it is hot (d) it has static charge
13. 13.🔍 Which is the odd one out? (a) a steel spoon (b) dry hair (c) tiny paper bits (d) thermocol bits
14. 14.⚖️ Fair test — does rubbing the comb more times pick up more paper bits? Which of these is kept the same? (a) paper bits picked up (b) number of rubs (c) the paper bit size
15. 15.🧺 Do we need a battery cell for the static comb? (a) needed (b) not needed
16. 16.⚖️ Fair test — does rubbing the comb more times pick up more paper bits? What do we do with “the same hair”? (a) we change it (b) we measure it (c) we keep it the same
17. 17.🧺 Which of these is not needed for the static comb? (a) a balloon (b) dry hair (c) yeast (d) a plastic comb
18. 18.⚖️ 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 hair (d) the same comb
19. 19.⚖️ 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
20. 20.⚡ Which of these jumps to a charged comb? (a) a pebble (b) a steel spoon (c) a heavy book (d) thermocol bits
21. 21.🧺 Which of these is needed for the static comb? (a) a magnet (b) vinegar (c) a plastic comb (d) yeast
22. 22.⚖️ Fair test — does rubbing the comb more times pick up more paper bits? Which of these is what we measure? (a) the same comb (b) paper bits picked up (c) the paper bit size (d) the same hair
23. 23.🧺 Three of these are needed for the static comb. Which one is NOT needed? (a) a balloon (b) a battery cell (c) a plastic comb (d) dry hair
24. 24.⚖️ 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
25. 25.⚖️ 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 keep it the same (c) we change it
26. 26.🛟 Static from a comb is safe. Which electricity must children never play with? (a) paper bits on a comb (b) a rubbed balloon (c) a rubbed plastic comb (d) plug points at home
27. 27.True or false: tiny paper bits jumps to a charged comb. (a) False (b) True
28. 28.🔍 Which is the odd one out? (a) a thin water stream (b) a brick (c) dry hair (d) thermocol bits
29. 29.🧺 Which of these is needed for the static comb? (a) a battery cell (b) vinegar (c) dry hair (d) turmeric powder
30. 30.True or false: yeast is not needed for the static comb. (a) False (b) True
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 change it (b) we keep it the same (c) we measure it
32. 32.🧺 Three of these are needed for the static comb. Which one is NOT needed? (a) tiny paper bits (b) a balloon (c) a plastic comb (d) a mirror
33. 33.True or false: a brick does not move to a charged comb. (a) True (b) False
34. 34.⚡ A rubbed comb is held near tiny paper bits. What happens? (a) does not move (b) jumps to the comb
35. 35.⚖️ Fair test — does rubbing the comb more times pick up more paper bits? What do we do with “the paper bit size”? (a) we measure it (b) we keep it the same (c) we change it
36. 36.🧺 Which of these is not needed for the static comb? (a) dry hair (b) a plastic comb (c) tiny paper bits (d) a mirror
37. 37.🔍 Which is the odd one out? (a) puffed rice (b) a brick (c) a heavy book (d) a steel spoon
38. 38.True or false: puffed rice jumps to a charged comb. (a) False (b) True
39. 39.🧺 Three of these are needed for the static comb. Which one is NOT needed? (a) dry hair (b) a magnet (c) tiny paper bits (d) a plastic comb
40. 40.🔍 Which is the odd one out? (a) a heavy book (b) a pebble (c) a steel spoon (d) tiny paper bits

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