Static Electricity Experiment Worksheet

Science experiments lesson 21: Static electricity: comb and paper bits · Set 961 · 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 yeast for the static comb? (a) needed (b) not needed
2. 2.🧺 Do we need dry hair for the static comb? (a) not needed (b) needed
3. 3.🧺 Do we need a balloon for the static comb? (a) needed (b) not needed
4. 4.⚖️ 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
5. 5.⚖️ 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 paper bit size (c) paper bits picked up
6. 6.🔮 Predict: you wet the comb before trying again. What happens? (a) it becomes a magnet (b) it works better (c) it hardly works (d) it lights up
7. 7.⚡ Which of these jumps to a charged comb? (a) a pebble (b) a steel spoon (c) a thin water stream (d) a heavy book
8. 8.True or false: yeast is not needed for the static comb. (a) False (b) True
9. 9.🧺 Three of these are needed for the static comb. Which one is NOT needed? (a) tiny paper bits (b) dry hair (c) a magnet (d) a plastic comb
10. 10.⚡ A rubbed comb is held near a thin water stream. What happens? (a) jumps to the comb (b) does not move
11. 11.True or false: vinegar is not needed for the static comb. (a) True (b) False
12. 12.🧺 Three of these are needed for the static comb. Which one is NOT needed? (a) a mirror (b) a balloon (c) a plastic comb (d) dry hair
13. 13.🧺 Which of these is needed for the static comb? (a) yeast (b) a mirror (c) dry hair (d) a magnet
14. 14.⚡ Which of these jumps to a charged comb? (a) a steel spoon (b) a brick (c) puffed rice (d) a pebble
15. 15.⚡ A rubbed comb is held near dry hair. What happens? (a) does not move (b) jumps to the comb
16. 16.⚖️ Fair test — does rubbing the comb more times pick up more paper bits? Which of these is the one thing we change? (a) the paper bit size (b) the same comb (c) number of rubs (d) distance to the paper
17. 17.🧺 Which of these is not needed for the static comb? (a) a mirror (b) a balloon (c) a plastic comb (d) dry hair
18. 18.🛟 Static from a comb is safe. Which electricity must children never play with? (a) a rubbed balloon (b) plug points at home (c) a rubbed plastic comb (d) paper bits on a comb
19. 19.⚖️ 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) distance to the paper (c) number of rubs (d) the same comb
20. 20.True or false: a steel spoon does not move to a charged comb. (a) True (b) False
21. 21.⚖️ Fair test — does rubbing the comb more times pick up more paper bits? True or false: the same hair is kept the same. (a) False (b) True
22. 22.🧺 Three of these are needed for the static comb. Which one is NOT needed? (a) a balloon (b) yeast (c) dry hair (d) a plastic comb
23. 23.True or false: a heavy book does not move to a charged comb. (a) True (b) False
24. 24.True or false: a magnet is not needed for the static comb. (a) True (b) False
25. 25.True or false: puffed rice jumps to a charged comb. (a) False (b) True
26. 26.📘 Rubbing moves tiny charges. What do we call the charge that builds up? (a) static electricity (b) gravity (c) sunlight (d) magnetism
27. 27.True or false: dry hair does not move to a charged comb. (a) False (b) True
28. 28.🛟 There is lightning outside. Where is it safest to be? (a) on a rooftop (b) indoors (c) under a tall tree (d) in an open field
29. 29.🧺 Do we need a battery cell for the static comb? (a) not needed (b) needed
30. 30.⚖️ Fair test — does rubbing the comb more times pick up more paper bits? What do we do with “number of rubs”? (a) we change it (b) we keep it the same (c) we measure it
31. 31.⚖️ Fair test — does rubbing the comb more times pick up more paper bits? True or false: the same comb is what we measure. (a) False (b) True
32. 32.⚖️ 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) True (b) False
33. 33.⚡ A rubbed comb is held near a brick. What happens? (a) jumps to the comb (b) does not move
34. 34.⚡ Which of these does not move to a charged comb? (a) tiny paper bits (b) thermocol bits (c) a steel spoon (d) dry hair
35. 35.🔮 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 bursts at once (d) it falls straight down
36. 36.🧺 Which of these is needed for the static comb? (a) vinegar (b) a plastic comb (c) a mirror (d) a magnet
37. 37.⚡ A rubbed comb is held near a pebble. What happens? (a) does not move (b) jumps to the comb
38. 38.⚡ Which of these jumps to a charged comb? (a) tiny paper bits (b) a pebble (c) a steel spoon (d) a heavy book
39. 39.⚖️ 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) False (b) True
40. 40.⚖️ Fair test — does rubbing the comb more times pick up more paper bits? True or false: number of rubs is what we measure. (a) True (b) False

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