Static Electricity Experiment Worksheet

Science experiments lesson 21: Static electricity: comb and paper bits · Set 714 · 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 “number of rubs”? (a) we change it (b) we keep it the same (c) we measure it
2. 2.⚡ You comb dry hair and hold the comb near tiny paper bits. What happens? (a) nothing happens (b) the bits jump to it (c) they turn wet (d) they turn blue
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 hair (c) number of rubs (d) distance to the paper
4. 4.🧺 Do we need a balloon for the static comb? (a) needed (b) not needed
5. 5.True or false: a steel spoon jumps to a charged comb. (a) True (b) False
6. 6.🛟 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
7. 7.🧺 Which of these is needed for the static comb? (a) dry hair (b) yeast (c) vinegar (d) a magnet
8. 8.⚖️ Fair test — does rubbing the comb more times pick up more paper bits? True or false: distance to the paper is kept the same. (a) False (b) True
9. 9.⚖️ 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 same comb (c) number of rubs (d) distance to the paper
10. 10.🔍 Which is the odd one out? (a) puffed rice (b) a brick (c) dry hair (d) tiny paper bits
11. 11.True or false: yeast is not needed for the static comb. (a) False (b) True
12. 12.⚖️ 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
13. 13.True or false: yeast is needed for the static comb. (a) True (b) False
14. 14.⚡ Which of these does not move to a charged comb? (a) a thin water stream (b) thermocol bits (c) a heavy book (d) dry hair
15. 15.🔮 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
16. 16.🔮 Predict: a charged comb is held near a thin stream of tap water. What happens? (a) nothing at all (b) the water freezes (c) the water stops (d) the stream bends
17. 17.🔍 Which is the odd one out? (a) a steel spoon (b) a heavy book (c) a thin water stream (d) a brick
18. 18.🧺 Three of these are needed for the static comb. Which one is NOT needed? (a) tiny paper bits (b) dry hair (c) a plastic comb (d) turmeric powder
19. 19.🧺 Three of these are needed for the static comb. Which one is NOT needed? (a) a plastic comb (b) a balloon (c) vinegar (d) dry hair
20. 20.🧺 Three of these are needed for the static comb. Which one is NOT needed? (a) tiny paper bits (b) a balloon (c) a battery cell (d) a plastic comb
21. 21.True or false: dry hair jumps to a charged comb. (a) False (b) True
22. 22.True or false: a magnet is needed for the static comb. (a) False (b) True
23. 23.🧺 Which of these is needed for the static comb? (a) a battery cell (b) tiny paper bits (c) yeast (d) vinegar
24. 24.True or false: a heavy book does not move to a charged comb. (a) False (b) True
25. 25.🧺 Three of these are needed for the static comb. Which one is NOT needed? (a) tiny paper bits (b) dry hair (c) a plastic comb (d) a magnet
26. 26.⚡ Which of these jumps to a charged comb? (a) a steel spoon (b) a pebble (c) puffed rice (d) a brick
27. 27.⚖️ Fair test — does rubbing the comb more times pick up more paper bits? True or false: the same comb is kept the same. (a) False (b) True
28. 28.True or false: vinegar is not needed for the static comb. (a) True (b) False
29. 29.⚡ Why does the comb trick work best on a dry day? (a) wet hair is magnetic (b) water adds charge (c) dry days are noisy (d) damp air leaks charge
30. 30.True or false: tiny paper bits is not needed for the static comb. (a) False (b) True
31. 31.🧺 Three of these are needed for the static comb. Which one is NOT needed? (a) a plastic comb (b) yeast (c) a balloon (d) dry hair
32. 32.⚡ A rubbed comb is held near a thin water stream. What happens? (a) does not move (b) jumps to the comb
33. 33.🔍 Which is the odd one out? (a) a thin water stream (b) tiny paper bits (c) a heavy book (d) thermocol bits
34. 34.True or false: a steel spoon does not move to a charged comb. (a) True (b) False
35. 35.🛟 There is lightning outside. Where is it safest to be? (a) under a tall tree (b) on a rooftop (c) indoors (d) in an open field
36. 36.⚡ Which of these does not move to a charged comb? (a) dry hair (b) a brick (c) thermocol bits (d) a thin water stream
37. 37.True or false: thermocol bits does not move to a charged comb. (a) False (b) True
38. 38.⚡ A rubbed comb is held near dry hair. What happens? (a) jumps to the comb (b) does not move
39. 39.🧺 Three of these are needed for the static comb. Which one is NOT needed? (a) dry hair (b) a plastic comb (c) tiny paper bits (d) a mirror
40. 40.⚖️ Fair test — does rubbing the comb more times pick up more paper bits? What do we do with “the same comb”? (a) we change it (b) we measure it (c) we keep it the same

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