Static Electricity Experiment Worksheet

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

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