Static Electricity Experiment Worksheet

Science experiments lesson 21: Static electricity: comb and paper bits · Set 685 · 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.🧺 Do we need tiny paper bits for the static comb? (a) needed (b) not needed
2. 2.True or false: a pebble jumps to a charged comb. (a) False (b) True
3. 3.⚡ Which of these jumps to a charged comb? (a) a heavy book (b) tiny paper bits (c) a steel spoon (d) a brick
4. 4.🧺 Three of these are needed for the static comb. Which one is NOT needed? (a) tiny paper bits (b) a balloon (c) dry hair (d) a mirror
5. 5.🔮 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
6. 6.True or false: tiny paper bits is not needed for the static comb. (a) True (b) False
7. 7.🧺 Which of these is not needed for the static comb? (a) vinegar (b) tiny paper bits (c) a balloon (d) dry hair
8. 8.⚡ Why does the comb trick work best on a dry day? (a) water adds charge (b) dry days are noisy (c) damp air leaks charge (d) wet hair is magnetic
9. 9.⚡ A rubbed comb is held near dry hair. What happens? (a) jumps to the comb (b) does not move
10. 10.⚖️ 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) True (b) False
11. 11.🛟 Static from a comb is safe. Which electricity must children never play with? (a) plug points at home (b) a rubbed balloon (c) a rubbed plastic comb (d) paper bits on a comb
12. 12.⚖️ 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
13. 13.🔮 Predict: you rub a balloon on dry hair and hold it on a wall. What happens? (a) it bursts at once (b) it sticks for a while (c) it turns into water (d) it falls straight down
14. 14.⚖️ Fair test — does rubbing the comb more times pick up more paper bits? Which of these is the one thing we change? (a) the same hair (b) paper bits picked up (c) distance to the paper (d) number of rubs
15. 15.True or false: a pebble does not move to a charged comb. (a) True (b) False
16. 16.True or false: turmeric powder is needed for the static comb. (a) True (b) False
17. 17.📘 Rubbing moves tiny charges. What do we call the charge that builds up? (a) static electricity (b) sunlight (c) magnetism (d) gravity
18. 18.⚡ Which of these jumps to a charged comb? (a) a steel spoon (b) a thin water stream (c) a brick (d) a heavy book
19. 19.🧺 Which of these is needed for the static comb? (a) a battery cell (b) turmeric powder (c) vinegar (d) tiny paper bits
20. 20.🧺 Which of these is not needed for the static comb? (a) a plastic comb (b) a balloon (c) yeast (d) dry hair
21. 21.⚖️ 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
22. 22.🔮 Predict: you wet the comb before trying again. What happens? (a) it works better (b) it hardly works (c) it lights up (d) it becomes a magnet
23. 23.True or false: a magnet is not needed for the static comb. (a) False (b) True
24. 24.⚖️ Fair test — does rubbing the comb more times pick up more paper bits? What do we do with “number of rubs”? (a) we measure it (b) we keep it the same (c) we change it
25. 25.🔍 Which is the odd one out? (a) a heavy book (b) tiny paper bits (c) a steel spoon (d) a pebble
26. 26.True or false: a magnet is needed for the static comb. (a) False (b) True
27. 27.🔍 Which is the odd one out? (a) puffed rice (b) thermocol bits (c) a brick (d) dry hair
28. 28.🧺 Three of these are needed for the static comb. Which one is NOT needed? (a) a plastic comb (b) dry hair (c) vinegar (d) a balloon
29. 29.True or false: a thin water stream does not move to a charged comb. (a) False (b) True
30. 30.🔍 Which is the odd one out? (a) a pebble (b) puffed rice (c) tiny paper bits (d) dry hair
31. 31.⚖️ Fair test — does rubbing the comb more times pick up more paper bits? What do we do with “the same hair”? (a) we change it (b) we keep it the same (c) we measure it
32. 32.🧺 Which of these is needed for the static comb? (a) a balloon (b) yeast (c) a battery cell (d) a mirror
33. 33.🔍 Which is the odd one out? (a) a steel spoon (b) a pebble (c) a thin water stream (d) a heavy book
34. 34.True or false: a balloon is needed for the static comb. (a) True (b) False
35. 35.⚡ A rubbed comb is held near tiny paper bits. What happens? (a) does not move (b) jumps to the comb
36. 36.⚖️ Fair test — does rubbing the comb more times pick up more paper bits? Which of these is kept the same? (a) paper bits picked up (b) the same comb (c) number of rubs
37. 37.🧺 Which of these is not needed for the static comb? (a) a mirror (b) dry hair (c) a plastic comb (d) a balloon
38. 38.⚖️ 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) number of rubs (c) paper bits picked up (d) distance to the paper
39. 39.🧺 Three of these are needed for the static comb. Which one is NOT needed? (a) tiny paper bits (b) a plastic comb (c) a balloon (d) yeast
40. 40.⚡ Which of these does not move to a charged comb? (a) thermocol bits (b) puffed rice (c) tiny paper bits (d) a pebble

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