Static Electricity Experiment Worksheet

Science experiments lesson 21: Static electricity: comb and paper bits · Set 865 · 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 battery cell is needed for the static comb. (a) False (b) True
2. 2.🛟 There is lightning outside. Where is it safest to be? (a) in an open field (b) on a rooftop (c) indoors (d) under a tall tree
3. 3.🔍 Which is the odd one out? (a) thermocol bits (b) puffed rice (c) dry hair (d) a brick
4. 4.⚡ Which of these does not move to a charged comb? (a) a thin water stream (b) a heavy book (c) dry hair (d) thermocol bits
5. 5.True or false: a balloon is not needed for the static comb. (a) False (b) True
6. 6.🧺 Three of these are needed for the static comb. Which one is NOT needed? (a) yeast (b) tiny paper bits (c) dry hair (d) a plastic comb
7. 7.⚡ Why does the comb trick work best on a dry day? (a) wet hair is magnetic (b) water adds charge (c) damp air leaks charge (d) dry days are noisy
8. 8.True or false: thermocol bits does not move to a charged comb. (a) False (b) True
9. 9.⚡ You comb dry hair and hold the comb near tiny paper bits. What happens? (a) nothing happens (b) they turn blue (c) the bits jump to it (d) they turn wet
10. 10.🛟 Static from a comb is safe. Which electricity must children never play with? (a) plug points at home (b) a rubbed plastic comb (c) paper bits on a comb (d) a rubbed balloon
11. 11.🧺 Do we need vinegar for the static comb? (a) not needed (b) needed
12. 12.⚡ Which big natural spark is caused by static electricity? (a) a rainbow (b) lightning (c) the wind (d) dew
13. 13.True or false: a thin water stream does not move to a charged comb. (a) True (b) False
14. 14.⚖️ 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
15. 15.⚡ A rubbed comb is held near tiny paper bits. What happens? (a) does not move (b) jumps to the comb
16. 16.⚡ Why does the rubbed comb pull the paper bits? (a) it is sticky (b) it is hot (c) it has static charge (d) it is a magnet
17. 17.🔮 Predict: a charged comb is held near a thin stream of tap water. What happens? (a) the stream bends (b) nothing at all (c) the water stops (d) the water freezes
18. 18.🔍 Which is the odd one out? (a) a steel spoon (b) a heavy book (c) puffed rice (d) a pebble
19. 19.True or false: a pebble jumps to a charged comb. (a) True (b) False
20. 20.True or false: tiny paper bits is needed for the static comb. (a) True (b) False
21. 21.⚖️ Fair test — does rubbing the comb more times pick up more paper bits? Which of these is what we measure? (a) the same hair (b) the paper bit size (c) paper bits picked up (d) number of rubs
22. 22.True or false: puffed rice does not move to a charged comb. (a) True (b) False
23. 23.True or false: a plastic comb is needed for the static comb. (a) True (b) False
24. 24.🔮 Predict: you rub a balloon on dry hair and hold it on a wall. What happens? (a) it turns into water (b) it bursts at once (c) it sticks for a while (d) it falls straight down
25. 25.🔮 Predict: you wet the comb before trying again. What happens? (a) it works better (b) it lights up (c) it hardly works (d) it becomes a magnet
26. 26.⚖️ Fair test — does rubbing the comb more times pick up more paper bits? What do we do with “the same hair”? (a) we keep it the same (b) we measure it (c) we change it
27. 27.🧺 Do we need a plastic comb for the static comb? (a) not needed (b) needed
28. 28.True or false: tiny paper bits is not needed for the static comb. (a) False (b) True
29. 29.True or false: a plastic comb is not needed for the static comb. (a) False (b) True
30. 30.True or false: a steel spoon jumps to a charged comb. (a) True (b) False
31. 31.True or false: yeast is needed for the static comb. (a) False (b) True
32. 32.⚡ Which of these jumps to a charged comb? (a) a steel spoon (b) thermocol bits (c) a pebble (d) a brick
33. 33.⚖️ 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
34. 34.True or false: a balloon is needed for the static comb. (a) True (b) False
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) False (b) True
36. 36.🧺 Which of these is needed for the static comb? (a) a plastic comb (b) a mirror (c) yeast (d) a magnet
37. 37.⚡ A rubbed comb is held near puffed rice. What happens? (a) does not move (b) jumps to the comb
38. 38.True or false: yeast is not needed for the static comb. (a) False (b) True
39. 39.True or false: tiny paper bits does not move to a charged comb. (a) False (b) True
40. 40.True or false: dry hair is not needed for the static comb. (a) False (b) True

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