Static Electricity Experiment Worksheet

Science experiments lesson 21: Static electricity: comb and paper bits · Set 225 · 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.📘 Rubbing moves tiny charges. What do we call the charge that builds up? (a) static electricity (b) gravity (c) magnetism (d) sunlight
2. 2.⚡ 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
3. 3.⚡ You comb dry hair and hold the comb near tiny paper bits. What happens? (a) nothing happens (b) they turn wet (c) they turn blue (d) the bits jump to it
4. 4.⚖️ 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) False (b) True
5. 5.🛟 Static from a comb is safe. Which electricity must children never play with? (a) plug points at home (b) a rubbed balloon (c) paper bits on a comb (d) a rubbed plastic comb
6. 6.🧺 Which of these is needed for the static comb? (a) vinegar (b) a mirror (c) a magnet (d) tiny paper bits
7. 7.⚖️ 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
8. 8.⚡ 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
9. 9.🧺 Do we need a magnet for the static comb? (a) not needed (b) needed
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 change it (b) we measure it (c) we keep it the same
11. 11.True or false: vinegar is needed for the static comb. (a) True (b) False
12. 12.🔍 Which is the odd one out? (a) thermocol bits (b) a pebble (c) a thin water stream (d) puffed rice
13. 13.🧺 Three of these are needed for the static comb. Which one is NOT needed? (a) tiny paper bits (b) turmeric powder (c) a balloon (d) a plastic comb
14. 14.🔍 Which is the odd one out? (a) tiny paper bits (b) a thin water stream (c) a brick (d) puffed rice
15. 15.⚖️ 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
16. 16.⚡ Which of these jumps to a charged comb? (a) a brick (b) a pebble (c) a steel spoon (d) puffed rice
17. 17.⚡ Which big natural spark is caused by static electricity? (a) the wind (b) dew (c) lightning (d) a rainbow
18. 18.🧺 Do we need a balloon for the static comb? (a) needed (b) not needed
19. 19.🧺 Which of these is needed for the static comb? (a) a battery cell (b) a mirror (c) a plastic comb (d) vinegar
20. 20.⚡ Which of these jumps to a charged comb? (a) a steel spoon (b) a brick (c) a pebble (d) a thin water stream
21. 21.⚡ Which of these does not move to a charged comb? (a) thermocol bits (b) a brick (c) dry hair (d) a thin water stream
22. 22.🛟 There is lightning outside. Where is it safest to be? (a) indoors (b) under a tall tree (c) on a rooftop (d) in an open field
23. 23.🔮 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
24. 24.⚖️ 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
25. 25.🔍 Which is the odd one out? (a) a heavy book (b) thermocol bits (c) a steel spoon (d) a pebble
26. 26.🔮 Predict: you rub a balloon on dry hair and hold it on a wall. What happens? (a) it bursts at once (b) it falls straight down (c) it sticks for a while (d) it turns into water
27. 27.True or false: a mirror is needed for the static comb. (a) True (b) False
28. 28.True or false: a brick does not move to a charged comb. (a) False (b) True
29. 29.🔮 Predict: a charged comb is held near a thin stream of tap water. What happens? (a) nothing at all (b) the stream bends (c) the water freezes (d) the water stops
30. 30.True or false: tiny paper bits does not move to a charged comb. (a) True (b) False
31. 31.⚖️ 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 keep it the same (c) we change it
32. 32.🧺 Do we need a plastic comb for the static comb? (a) needed (b) not needed
33. 33.⚡ A rubbed comb is held near puffed rice. What happens? (a) jumps to the comb (b) does not move
34. 34.⚖️ Fair test — does rubbing the comb more times pick up more paper bits? True or false: number of rubs is what we measure. (a) True (b) False
35. 35.True or false: a battery cell is not needed for the static comb. (a) False (b) True
36. 36.⚖️ 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) paper bits picked up (c) the paper bit size (d) number of rubs
37. 37.⚖️ Fair test — does rubbing the comb more times pick up more paper bits? What do we do with “distance to the paper”? (a) we measure it (b) we change it (c) we keep it the same
38. 38.🧺 Which of these is not needed for the static comb? (a) tiny paper bits (b) a magnet (c) dry hair (d) a plastic comb
39. 39.🔍 Which is the odd one out? (a) a thin water stream (b) a brick (c) a pebble (d) a heavy book
40. 40.⚡ A rubbed comb is held near a thin water stream. What happens? (a) does not move (b) jumps to the comb

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