Static Electricity Experiment Worksheet

Science experiments lesson 21: Static electricity: comb and paper bits · Set 118 · 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.True or false: a pebble jumps to a charged comb. (a) True (b) False
2. 2.⚡ A rubbed comb is held near a pebble. What happens? (a) jumps to the comb (b) does not move
3. 3.True or false: dry hair is needed for the static comb. (a) False (b) True
4. 4.🧺 Three of these are needed for the static comb. Which one is NOT needed? (a) vinegar (b) a plastic comb (c) a balloon (d) dry hair
5. 5.⚡ You comb dry hair and hold the comb near tiny paper bits. What happens? (a) nothing happens (b) they turn blue (c) they turn wet (d) the bits jump to it
6. 6.⚡ Which of these jumps to a charged comb? (a) a pebble (b) a heavy book (c) a brick (d) puffed rice
7. 7.⚡ Which of these jumps to a charged comb? (a) a steel spoon (b) a heavy book (c) a thin water stream (d) a pebble
8. 8.⚖️ Fair test — does rubbing the comb more times pick up more paper bits? What do we do with “paper bits picked up”? (a) we keep it the same (b) we change it (c) we measure it
9. 9.🔍 Which is the odd one out? (a) dry hair (b) a thin water stream (c) puffed rice (d) a heavy book
10. 10.⚖️ 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
11. 11.⚡ 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
12. 12.⚡ A rubbed comb is held near a brick. What happens? (a) does not move (b) jumps to the comb
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 keep it the same (b) we measure it (c) we change it
14. 14.⚖️ Fair test — does rubbing the comb more times pick up more paper bits? True or false: distance to the paper is the one thing we change. (a) False (b) True
15. 15.True or false: a mirror is needed for the static comb. (a) False (b) True
16. 16.🧺 Do we need yeast for the static comb? (a) needed (b) not needed
17. 17.True or false: turmeric powder is needed for the static comb. (a) True (b) False
18. 18.⚖️ Fair test — does rubbing the comb more times pick up more paper bits? What do we do with “the same comb”? (a) we measure it (b) we change it (c) we keep it the same
19. 19.⚖️ 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) False (b) True
20. 20.🧺 Three of these are needed for the static comb. Which one is NOT needed? (a) dry hair (b) tiny paper bits (c) a magnet (d) a plastic comb
21. 21.True or false: tiny paper bits is not needed for the static comb. (a) True (b) False
22. 22.⚡ A rubbed comb is held near thermocol bits. What happens? (a) jumps to the comb (b) does not move
23. 23.🔮 Predict: a charged comb is held near a thin stream of tap water. What happens? (a) the water stops (b) the water freezes (c) nothing at all (d) the stream bends
24. 24.⚡ A rubbed comb is held near a thin water stream. What happens? (a) jumps to the comb (b) does not move
25. 25.True or false: dry hair is not needed for the static comb. (a) False (b) True
26. 26.🔍 Which is the odd one out? (a) a pebble (b) a heavy book (c) puffed rice (d) a brick
27. 27.🧺 Which of these is not needed for the static comb? (a) dry hair (b) a balloon (c) a mirror (d) tiny paper bits
28. 28.🛟 Static from a comb is safe. Which electricity must children never play with? (a) a rubbed plastic comb (b) a rubbed balloon (c) plug points at home (d) paper bits on a comb
29. 29.🧺 Do we need turmeric powder for the static comb? (a) needed (b) not needed
30. 30.🛟 There is lightning outside. Where is it safest to be? (a) under a tall tree (b) indoors (c) in an open field (d) on a rooftop
31. 31.⚡ A rubbed comb is held near tiny paper bits. What happens? (a) jumps to the comb (b) does not move
32. 32.⚖️ Fair test — does rubbing the comb more times pick up more paper bits? Which of these is the one thing we change? (a) distance to the paper (b) the same hair (c) the paper bit size (d) number of rubs
33. 33.🧺 Three of these are needed for the static comb. Which one is NOT needed? (a) a mirror (b) a balloon (c) dry hair (d) a plastic comb
34. 34.⚖️ Fair test — does rubbing the comb more times pick up more paper bits? What do we do with “the paper bit size”? (a) we keep it the same (b) we measure it (c) we change it
35. 35.🔮 Predict: you rub a balloon on dry hair and hold it on a wall. What happens? (a) it bursts at once (b) it turns into water (c) it falls straight down (d) it sticks for a while
36. 36.⚖️ 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) paper bits picked up (c) the same hair
37. 37.⚡ Which of these does not move to a charged comb? (a) a thin water stream (b) a steel spoon (c) thermocol bits (d) dry hair
38. 38.🧺 Three of these are needed for the static comb. Which one is NOT needed? (a) a plastic comb (b) tiny paper bits (c) turmeric powder (d) dry hair
39. 39.🔍 Which is the odd one out? (a) a thin water stream (b) a pebble (c) tiny paper bits (d) dry hair
40. 40.🔍 Which is the odd one out? (a) a pebble (b) a heavy book (c) a steel spoon (d) tiny paper bits

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