Static Electricity Experiment Worksheet

Science experiments lesson 21: Static electricity: comb and paper bits · Set 138 · 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 stops (b) the water freezes (c) the stream bends (d) nothing at all
2. 2.⚡ Which of these does not move to a charged comb? (a) a steel spoon (b) a thin water stream (c) puffed rice (d) tiny paper bits
3. 3.⚡ A rubbed comb is held near a pebble. What happens? (a) does not move (b) jumps to the comb
4. 4.🧺 Three of these are needed for the static comb. Which one is NOT needed? (a) a balloon (b) a plastic comb (c) tiny paper bits (d) a magnet
5. 5.⚡ Which big natural spark is caused by static electricity? (a) the wind (b) a rainbow (c) dew (d) lightning
6. 6.⚡ A rubbed comb is held near a heavy book. What happens? (a) does not move (b) jumps to the comb
7. 7.True or false: vinegar is not needed for the static comb. (a) True (b) False
8. 8.⚖️ Fair test — does rubbing the comb more times pick up more paper bits? Which of these is the one thing we change? (a) number of rubs (b) distance to the paper (c) the paper bit size (d) the same hair
9. 9.⚖️ 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
10. 10.⚖️ Fair test — does rubbing the comb more times pick up more paper bits? Which of these is what we measure? (a) distance to the paper (b) the same hair (c) paper bits picked up (d) the same comb
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 change it (b) we keep it the same (c) we measure it
12. 12.⚖️ 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
13. 13.🧺 Do we need a battery cell for the static comb? (a) needed (b) not needed
14. 14.🧺 Do we need vinegar for the static comb? (a) needed (b) not needed
15. 15.📘 Rubbing moves tiny charges. What do we call the charge that builds up? (a) magnetism (b) gravity (c) static electricity (d) sunlight
16. 16.🧺 Three of these are needed for the static comb. Which one is NOT needed? (a) turmeric powder (b) a plastic comb (c) dry hair (d) tiny paper bits
17. 17.🔍 Which is the odd one out? (a) a thin water stream (b) a steel spoon (c) thermocol bits (d) tiny paper bits
18. 18.🔮 Predict: you wet the comb before trying again. What happens? (a) it hardly works (b) it lights up (c) it becomes a magnet (d) it works better
19. 19.🧺 Do we need a balloon for the static comb? (a) not needed (b) needed
20. 20.⚡ Which of these jumps to a charged comb? (a) a pebble (b) a brick (c) a heavy book (d) tiny paper bits
21. 21.True or false: a thin water stream jumps to a charged comb. (a) False (b) True
22. 22.True or false: a pebble jumps to a charged comb. (a) False (b) True
23. 23.⚡ Which of these jumps to a charged comb? (a) puffed rice (b) a brick (c) a heavy book (d) a pebble
24. 24.🧺 Do we need yeast for the static comb? (a) needed (b) not needed
25. 25.🧺 Do we need a mirror for the static comb? (a) not needed (b) needed
26. 26.🧺 Do we need dry hair for the static comb? (a) not needed (b) needed
27. 27.⚖️ 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
28. 28.⚡ Why does the comb trick work best on a dry day? (a) wet hair is magnetic (b) dry days are noisy (c) water adds charge (d) damp air leaks charge
29. 29.⚖️ 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
30. 30.⚖️ 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
31. 31.🛟 Static from a comb is safe. Which electricity must children never play with? (a) plug points at home (b) paper bits on a comb (c) a rubbed plastic comb (d) a rubbed balloon
32. 32.True or false: a battery cell is not needed for the static comb. (a) True (b) False
33. 33.🧺 Which of these is needed for the static comb? (a) a mirror (b) turmeric powder (c) a balloon (d) vinegar
34. 34.🔍 Which is the odd one out? (a) thermocol bits (b) tiny paper bits (c) a pebble (d) a thin water stream
35. 35.⚡ A rubbed comb is held near a brick. What happens? (a) jumps to the comb (b) does not move
36. 36.⚡ Which of these does not move to a charged comb? (a) a heavy book (b) a thin water stream (c) tiny paper bits (d) puffed rice
37. 37.True or false: tiny paper bits jumps to a charged comb. (a) True (b) False
38. 38.⚖️ 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 same comb
39. 39.🔍 Which is the odd one out? (a) a heavy book (b) a brick (c) a thin water stream (d) a steel spoon
40. 40.⚖️ Fair test — does rubbing the comb more times pick up more paper bits? What do we do with “paper bits picked up”? (a) we measure it (b) we change it (c) we keep it the same

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