Static Electricity Experiment Worksheet

Science experiments lesson 21: Static electricity: comb and paper bits · Set 862 · 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) nothing at all (b) the water stops (c) the stream bends (d) the water freezes
2. 2.⚖️ Fair test — does rubbing the comb more times pick up more paper bits? Which of these is kept the same? (a) the same hair (b) number of rubs (c) paper bits picked up
3. 3.True or false: a brick jumps to a charged comb. (a) True (b) False
4. 4.⚖️ Fair test — does rubbing the comb more times pick up more paper bits? What do we do with “distance to the paper”? (a) we keep it the same (b) we change it (c) we measure it
5. 5.⚡ 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
6. 6.⚖️ Fair test — does rubbing the comb more times pick up more paper bits? Which of these is what we measure? (a) paper bits picked up (b) the paper bit size (c) the same hair (d) the same comb
7. 7.⚖️ Fair test — does rubbing the comb more times pick up more paper bits? True or false: the paper bit size is kept the same. (a) False (b) True
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.⚖️ 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
10. 10.True or false: a battery cell is needed for the static comb. (a) True (b) False
11. 11.⚖️ Fair test — does rubbing the comb more times pick up more paper bits? What do we do with “paper bits picked up”? (a) we change it (b) we keep it the same (c) we measure it
12. 12.🧺 Three of these are needed for the static comb. Which one is NOT needed? (a) a mirror (b) tiny paper bits (c) a balloon (d) a plastic comb
13. 13.⚡ Why does the rubbed comb pull the paper bits? (a) it is hot (b) it has static charge (c) it is sticky (d) it is a magnet
14. 14.🧺 Do we need tiny paper bits for the static comb? (a) not needed (b) needed
15. 15.⚖️ 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
16. 16.🧺 Three of these are needed for the static comb. Which one is NOT needed? (a) dry hair (b) a balloon (c) yeast (d) a plastic comb
17. 17.True or false: a magnet is needed for the static comb. (a) True (b) False
18. 18.True or false: vinegar is needed for the static comb. (a) False (b) True
19. 19.🧺 Do we need dry hair for the static comb? (a) not needed (b) needed
20. 20.🧺 Do we need a plastic comb for the static comb? (a) not needed (b) needed
21. 21.🛟 There is lightning outside. Where is it safest to be? (a) in an open field (b) on a rooftop (c) under a tall tree (d) indoors
22. 22.⚡ Which of these jumps to a charged comb? (a) a steel spoon (b) a pebble (c) a heavy book (d) dry hair
23. 23.⚡ A rubbed comb is held near a heavy book. What happens? (a) jumps to the comb (b) does not move
24. 24.⚖️ Fair test — does rubbing the comb more times pick up more paper bits? Which of these is the one thing we change? (a) distance to the paper (b) number of rubs (c) the paper bit size (d) the same comb
25. 25.True or false: a thin water stream does not move to a charged comb. (a) True (b) False
26. 26.🧺 Do we need a balloon for the static comb? (a) not needed (b) needed
27. 27.⚡ Which of these jumps to a charged comb? (a) a brick (b) a thin water stream (c) a heavy book (d) a pebble
28. 28.🧺 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) a battery cell
29. 29.True or false: a brick does not move to a charged comb. (a) False (b) True
30. 30.⚡ Which of these does not move to a charged comb? (a) thermocol bits (b) tiny paper bits (c) a brick (d) a thin water stream
31. 31.True or false: tiny paper bits is needed for the static comb. (a) True (b) False
32. 32.🧺 Which of these is needed for the static comb? (a) a magnet (b) turmeric powder (c) a mirror (d) dry hair
33. 33.True or false: dry hair does not move to a charged comb. (a) True (b) False
34. 34.🔍 Which is the odd one out? (a) puffed rice (b) thermocol bits (c) a brick (d) a thin water stream
35. 35.⚖️ Fair test — does rubbing the comb more times pick up more paper bits? Which of these is kept the same? (a) the paper bit size (b) paper bits picked up (c) number of rubs
36. 36.🧺 Three of these are needed for the static comb. Which one is NOT needed? (a) a plastic comb (b) tiny paper bits (c) dry hair (d) a magnet
37. 37.🔍 Which is the odd one out? (a) a pebble (b) a steel spoon (c) a heavy book (d) dry hair
38. 38.⚖️ 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 change it (c) we measure it
39. 39.True or false: a thin water stream jumps to a charged comb. (a) True (b) False
40. 40.🧺 Three of these are needed for the static comb. Which one is NOT needed? (a) dry hair (b) a balloon (c) a plastic comb (d) turmeric powder

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