Static Electricity Experiment Worksheet

Science experiments lesson 21: Static electricity: comb and paper bits · Set 228 · 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.⚖️ 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
2. 2.⚖️ Fair test — does rubbing the comb more times pick up more paper bits? What do we do with “distance to the paper”? (a) we change it (b) we keep it the same (c) we measure it
3. 3.⚖️ 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
4. 4.⚖️ 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 measure it (c) we keep it the same
5. 5.🔮 Predict: a charged comb is held near a thin stream of tap water. What happens? (a) the water stops (b) the stream bends (c) nothing at all (d) the water freezes
6. 6.🧺 Do we need a plastic comb for the static comb? (a) needed (b) not needed
7. 7.⚡ You comb dry hair and hold the comb near tiny paper bits. What happens? (a) the bits jump to it (b) nothing happens (c) they turn blue (d) they turn wet
8. 8.🧺 Which of these is not needed for the static comb? (a) tiny paper bits (b) a balloon (c) yeast (d) dry hair
9. 9.True or false: thermocol bits jumps to a charged comb. (a) False (b) True
10. 10.🧺 Three of these are needed for the static comb. Which one is NOT needed? (a) a magnet (b) tiny paper bits (c) dry hair (d) a balloon
11. 11.📘 Rubbing moves tiny charges. What do we call the charge that builds up? (a) sunlight (b) magnetism (c) gravity (d) static electricity
12. 12.True or false: a mirror is needed for the static comb. (a) False (b) True
13. 13.⚡ Which of these does not move to a charged comb? (a) puffed rice (b) dry hair (c) a thin water stream (d) a brick
14. 14.⚖️ 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
15. 15.🛟 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
16. 16.🛟 Static from a comb is safe. Which electricity must children never play with? (a) plug points at home (b) a rubbed plastic comb (c) a rubbed balloon (d) paper bits on a comb
17. 17.⚡ Why does the comb trick work best on a dry day? (a) damp air leaks charge (b) wet hair is magnetic (c) dry days are noisy (d) water adds charge
18. 18.True or false: a magnet is needed for the static comb. (a) True (b) False
19. 19.⚡ Which of these jumps to a charged comb? (a) a thin water stream (b) a brick (c) a heavy book (d) a pebble
20. 20.True or false: a balloon is needed for the static comb. (a) True (b) False
21. 21.True or false: a thin water stream does not move to a charged comb. (a) True (b) False
22. 22.True or false: dry hair is needed for the static comb. (a) False (b) True
23. 23.⚡ A rubbed comb is held near puffed rice. What happens? (a) does not move (b) jumps to the comb
24. 24.⚡ A rubbed comb is held near a thin water stream. What happens? (a) does not move (b) jumps to the comb
25. 25.True or false: tiny paper bits is needed for the static comb. (a) True (b) False
26. 26.⚡ Which of these does not move to a charged comb? (a) a heavy book (b) a thin water stream (c) dry hair (d) puffed rice
27. 27.⚖️ 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 comb (c) paper bits picked up
28. 28.True or false: a steel spoon jumps to a charged comb. (a) False (b) True
29. 29.🔍 Which is the odd one out? (a) a pebble (b) a thin water stream (c) thermocol bits (d) tiny paper bits
30. 30.⚡ A rubbed comb is held near a steel spoon. What happens? (a) does not move (b) jumps to the comb
31. 31.🔍 Which is the odd one out? (a) a brick (b) dry hair (c) a thin water stream (d) tiny paper bits
32. 32.True or false: vinegar is not needed for the static comb. (a) False (b) True
33. 33.True or false: puffed rice does not move to a charged comb. (a) True (b) False
34. 34.🧺 Which of these is not needed for the static comb? (a) tiny paper bits (b) a mirror (c) a plastic comb (d) a balloon
35. 35.🧺 Do we need a magnet for the static comb? (a) needed (b) not needed
36. 36.⚡ Which of these does not move to a charged comb? (a) dry hair (b) tiny paper bits (c) a thin water stream (d) a pebble
37. 37.True or false: thermocol bits does not move to a charged comb. (a) False (b) True
38. 38.🔮 Predict: you rub a balloon on dry hair and hold it on a wall. What happens? (a) it sticks for a while (b) it turns into water (c) it falls straight down (d) it bursts at once
39. 39.🧺 Three of these are needed for the static comb. Which one is NOT needed? (a) yeast (b) dry hair (c) a plastic comb (d) tiny paper bits
40. 40.⚖️ 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

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