Static Electricity Experiment Worksheet

Science experiments lesson 21: Static electricity: comb and paper bits · Set 59 · 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.🔮 Predict: a charged comb is held near a thin stream of tap water. What happens? (a) the water freezes (b) the water stops (c) the stream bends (d) nothing at all
2. 2.🧺 Which of these is not needed for the static comb? (a) dry hair (b) a plastic comb (c) tiny paper bits (d) a magnet
3. 3.True or false: a brick does not move to a charged comb. (a) False (b) True
4. 4.⚖️ 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 paper bit size
5. 5.⚖️ 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) True (b) False
6. 6.True or false: a thin water stream does not move to a charged comb. (a) True (b) False
7. 7.⚡ You comb dry hair and hold the comb near tiny paper bits. What happens? (a) they turn blue (b) they turn wet (c) nothing happens (d) the bits jump to it
8. 8.⚡ Which of these does not move to a charged comb? (a) a thin water stream (b) tiny paper bits (c) thermocol bits (d) a pebble
9. 9.True or false: a heavy book jumps to a charged comb. (a) False (b) True
10. 10.🔮 Predict: you rub a balloon on dry hair and hold it on a wall. What happens? (a) it sticks for a while (b) it falls straight down (c) it bursts at once (d) it turns into water
11. 11.⚖️ Fair test — does rubbing the comb more times pick up more paper bits? True or false: the same comb is what we measure. (a) True (b) False
12. 12.🧺 Which of these is needed for the static comb? (a) yeast (b) a plastic comb (c) a battery cell (d) vinegar
13. 13.⚖️ 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) True (b) False
14. 14.⚖️ Fair test — does rubbing the comb more times pick up more paper bits? Which of these is kept the same? (a) distance to the paper (b) paper bits picked up (c) number of rubs
15. 15.🛟 Static from a comb is safe. Which electricity must children never play with? (a) a rubbed plastic comb (b) paper bits on a comb (c) a rubbed balloon (d) plug points at home
16. 16.True or false: dry hair is not needed for the static comb. (a) False (b) True
17. 17.⚡ Which big natural spark is caused by static electricity? (a) the wind (b) lightning (c) dew (d) a rainbow
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) paper bits picked up (b) distance to the paper (c) the same comb (d) number of rubs
19. 19.🧺 Do we need vinegar for the static comb? (a) needed (b) not needed
20. 20.⚡ Which of these does not move to a charged comb? (a) a brick (b) dry hair (c) thermocol bits (d) puffed rice
21. 21.True or false: a steel spoon does not move to a charged comb. (a) False (b) True
22. 22.⚖️ 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
23. 23.⚡ 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
24. 24.⚡ A rubbed comb is held near a brick. What happens? (a) jumps to the comb (b) does not move
25. 25.⚡ Which of these jumps to a charged comb? (a) a heavy book (b) dry hair (c) a brick (d) a pebble
26. 26.🔍 Which is the odd one out? (a) tiny paper bits (b) dry hair (c) puffed rice (d) a steel spoon
27. 27.⚖️ 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) the paper bit size (c) paper bits picked up (d) distance to the paper
28. 28.🛟 There is lightning outside. Where is it safest to be? (a) indoors (b) in an open field (c) under a tall tree (d) on a rooftop
29. 29.True or false: dry hair jumps to a charged comb. (a) True (b) False
30. 30.⚡ A rubbed comb is held near dry hair. What happens? (a) does not move (b) jumps to the comb
31. 31.⚡ A rubbed comb is held near a pebble. What happens? (a) jumps to the comb (b) does not move
32. 32.True or false: a mirror is not needed for the static comb. (a) False (b) True
33. 33.⚡ Which of these does not move to a charged comb? (a) puffed rice (b) thermocol bits (c) a heavy book (d) dry hair
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 change it (b) we keep it the same (c) we measure it
35. 35.⚖️ 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
36. 36.⚖️ Fair test — does rubbing the comb more times pick up more paper bits? True or false: the same hair is kept the same. (a) False (b) True
37. 37.⚡ Which of these jumps to a charged comb? (a) a heavy book (b) a steel spoon (c) a brick (d) a thin water stream
38. 38.🔍 Which is the odd one out? (a) a steel spoon (b) a brick (c) a pebble (d) thermocol bits
39. 39.🧺 Which of these is not needed for the static comb? (a) tiny paper bits (b) dry hair (c) a balloon (d) vinegar
40. 40.⚡ Which of these jumps to a charged comb? (a) a heavy book (b) a steel spoon (c) a brick (d) tiny paper bits

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