Static Electricity Experiment Worksheet

Science experiments lesson 21: Static electricity: comb and paper bits · Set 981 · 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 magnet is not needed for the static comb. (a) True (b) False
2. 2.⚡ Which of these does not move to a charged comb? (a) puffed rice (b) a thin water stream (c) a pebble (d) thermocol bits
3. 3.True or false: a battery cell is not 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) a balloon (b) a plastic comb (c) a mirror (d) dry hair
5. 5.🔍 Which is the odd one out? (a) a heavy book (b) dry hair (c) a thin water stream (d) tiny paper bits
6. 6.True or false: a thin water stream jumps to a charged comb. (a) True (b) False
7. 7.True or false: a pebble jumps to a charged comb. (a) True (b) False
8. 8.⚖️ Fair test — does rubbing the comb more times pick up more paper bits? True or false: paper bits picked up is the one thing we change. (a) True (b) False
9. 9.🧺 Do we need tiny paper bits for the static comb? (a) needed (b) not needed
10. 10.🔮 Predict: you wet the comb before trying again. What happens? (a) it becomes a magnet (b) it works better (c) it lights up (d) it hardly works
11. 11.⚖️ 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
12. 12.⚡ A rubbed comb is held near a pebble. What happens? (a) does not move (b) jumps to the comb
13. 13.🛟 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
14. 14.⚡ Why does the rubbed comb pull the paper bits? (a) it is a magnet (b) it is hot (c) it has static charge (d) it is sticky
15. 15.⚡ A rubbed comb is held near tiny paper bits. What happens? (a) jumps to the comb (b) does not move
16. 16.⚖️ Fair test — does rubbing the comb more times pick up more paper bits? True or false: the same hair is the one thing we change. (a) False (b) True
17. 17.🔍 Which is the odd one out? (a) a steel spoon (b) dry hair (c) a heavy book (d) a pebble
18. 18.⚖️ 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
19. 19.⚖️ 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 measure it (c) we keep it the same
20. 20.⚡ Which of these jumps to a charged comb? (a) a heavy book (b) a brick (c) dry hair (d) a pebble
21. 21.🧺 Which of these is not needed for the static comb? (a) vinegar (b) tiny paper bits (c) dry hair (d) a plastic comb
22. 22.🛟 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) plug points at home (d) a rubbed balloon
23. 23.True or false: a brick jumps to a charged comb. (a) False (b) True
24. 24.⚡ A rubbed comb is held near dry hair. What happens? (a) does not move (b) jumps to the comb
25. 25.🧺 Which of these is not needed for the static comb? (a) a mirror (b) tiny paper bits (c) a plastic comb (d) dry hair
26. 26.True or false: a mirror is needed for the static comb. (a) True (b) False
27. 27.True or false: yeast is needed for the static comb. (a) True (b) False
28. 28.⚡ Which big natural spark is caused by static electricity? (a) a rainbow (b) the wind (c) lightning (d) dew
29. 29.🔮 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
30. 30.⚖️ Fair test — does rubbing the comb more times pick up more paper bits? Which of these is what we measure? (a) number of rubs (b) paper bits picked up (c) the same comb (d) the paper bit size
31. 31.🔮 Predict: a charged comb is held near a thin stream of tap water. What happens? (a) the water stops (b) the water freezes (c) the stream bends (d) nothing at all
32. 32.True or false: tiny paper bits does not move to a charged comb. (a) True (b) False
33. 33.🔍 Which is the odd one out? (a) a brick (b) a pebble (c) tiny paper bits (d) a heavy book
34. 34.⚡ Why does the comb trick work best on a dry day? (a) dry days are noisy (b) wet hair is magnetic (c) water adds charge (d) damp air leaks charge
35. 35.⚖️ 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 measure it (c) we change it
36. 36.⚡ You comb dry hair and hold the comb near tiny paper bits. What happens? (a) they turn blue (b) they turn wet (c) the bits jump to it (d) nothing happens
37. 37.⚖️ 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) True (b) False
38. 38.🧺 Do we need vinegar for the static comb? (a) not needed (b) needed
39. 39.⚡ A rubbed comb is held near a brick. What happens? (a) jumps to the comb (b) does not move
40. 40.⚡ A rubbed comb is held near a heavy book. What happens? (a) jumps to the comb (b) does not move

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