Static Electricity Experiment Worksheet

Science experiments lesson 21: Static electricity: comb and paper bits · Set 42 · 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.🔍 Which is the odd one out? (a) thermocol bits (b) tiny paper bits (c) dry hair (d) a heavy book
2. 2.⚡ A rubbed comb is held near a pebble. What happens? (a) does not move (b) jumps to the comb
3. 3.🛟 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
4. 4.🔮 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
5. 5.True or false: a brick jumps to a charged comb. (a) False (b) True
6. 6.🛟 There is lightning outside. Where is it safest to be? (a) on a rooftop (b) in an open field (c) indoors (d) under a tall tree
7. 7.True or false: dry hair is not needed for the static comb. (a) True (b) False
8. 8.⚡ Which of these jumps to a charged comb? (a) a steel spoon (b) a pebble (c) a heavy book (d) puffed rice
9. 9.⚖️ Fair test — does rubbing the comb more times pick up more paper bits? Which of these is the one thing we change? (a) the same hair (b) distance to the paper (c) the same comb (d) number of rubs
10. 10.🔍 Which is the odd one out? (a) a thin water stream (b) tiny paper bits (c) dry hair (d) a pebble
11. 11.⚡ Which of these does not move to a charged comb? (a) a thin water stream (b) puffed rice (c) a heavy book (d) thermocol bits
12. 12.True or false: dry hair jumps to a charged comb. (a) False (b) True
13. 13.⚖️ Fair test — does rubbing the comb more times pick up more paper bits? What do we do with “distance to the paper”? (a) we change it (b) we measure it (c) we keep it the same
14. 14.🔍 Which is the odd one out? (a) a pebble (b) a heavy book (c) a steel spoon (d) thermocol bits
15. 15.⚡ You comb dry hair and hold the comb near tiny paper bits. What happens? (a) nothing happens (b) they turn wet (c) the bits jump to it (d) they turn blue
16. 16.True or false: a magnet is not needed for the static comb. (a) True (b) False
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 paper bit size (c) paper bits picked up (d) the same hair
18. 18.🔮 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 stream bends (d) the water stops
19. 19.⚖️ Fair test — does rubbing the comb more times pick up more paper bits? Which of these is kept the same? (a) number of rubs (b) the same hair (c) paper bits picked up
20. 20.⚡ Which of these jumps to a charged comb? (a) a steel spoon (b) a brick (c) a pebble (d) tiny paper bits
21. 21.🔍 Which is the odd one out? (a) a heavy book (b) a brick (c) a pebble (d) tiny paper bits
22. 22.⚖️ Fair test — does rubbing the comb more times pick up more paper bits? What do we do with “number of rubs”? (a) we keep it the same (b) we change it (c) we measure it
23. 23.⚖️ 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
24. 24.⚖️ 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 change it (c) we keep it the same
25. 25.🧺 Three of these are needed for the static comb. Which one is NOT needed? (a) yeast (b) dry hair (c) a balloon (d) tiny paper bits
26. 26.⚡ A rubbed comb is held near dry hair. What happens? (a) does not move (b) jumps to the comb
27. 27.⚡ Which of these jumps to a charged comb? (a) a steel spoon (b) a heavy book (c) thermocol bits (d) a pebble
28. 28.True or false: vinegar is needed for the static comb. (a) True (b) False
29. 29.True or false: a brick does not move to a charged comb. (a) True (b) False
30. 30.🧺 Which of these is needed for the static comb? (a) a mirror (b) vinegar (c) a magnet (d) tiny paper bits
31. 31.True or false: turmeric powder is not needed for the static comb. (a) False (b) True
32. 32.⚡ A rubbed comb is held near puffed rice. What happens? (a) jumps to the comb (b) does not move
33. 33.⚖️ Fair test — does rubbing the comb more times pick up more paper bits? True or false: number of rubs is kept the same. (a) False (b) True
34. 34.⚡ Why does the comb trick work best on a dry day? (a) wet hair is magnetic (b) dry days are noisy (c) damp air leaks charge (d) water adds charge
35. 35.⚡ Which of these does not move to a charged comb? (a) a brick (b) tiny paper bits (c) puffed rice (d) a thin water stream
36. 36.⚖️ Fair test — does rubbing the comb more times pick up more paper bits? True or false: the paper bit size is the one thing we change. (a) True (b) False
37. 37.True or false: a balloon is not needed for the static comb. (a) False (b) True
38. 38.⚡ A rubbed comb is held near a steel spoon. What happens? (a) jumps to the comb (b) does not move
39. 39.⚖️ Fair test — does rubbing the comb more times pick up more paper bits? True or false: the same comb is the one thing we change. (a) True (b) False
40. 40.🧺 Do we need a battery cell for the static comb? (a) needed (b) not needed

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