Static Electricity Experiment Worksheet

Science experiments lesson 21: Static electricity: comb and paper bits · Set 407 · 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 kept the same. (a) True (b) False
2. 2.🛟 Static from a comb is safe. Which electricity must children never play with? (a) a rubbed balloon (b) plug points at home (c) paper bits on a comb (d) a rubbed plastic comb
3. 3.True or false: puffed rice does not move to a charged comb. (a) True (b) False
4. 4.⚡ A rubbed comb is held near dry hair. What happens? (a) jumps to the comb (b) does not move
5. 5.⚖️ 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
6. 6.⚖️ Fair test — does rubbing the comb more times pick up more paper bits? Which of these is what we measure? (a) the paper bit size (b) distance to the paper (c) paper bits picked up (d) number of rubs
7. 7.🧺 Which of these is needed for the static comb? (a) a magnet (b) yeast (c) turmeric powder (d) a balloon
8. 8.🛟 There is lightning outside. Where is it safest to be? (a) on a rooftop (b) indoors (c) in an open field (d) under a tall tree
9. 9.⚖️ 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 change it (c) we keep it the same
10. 10.⚡ Which of these jumps to a charged comb? (a) a brick (b) a steel spoon (c) a thin water stream (d) a heavy book
11. 11.🧺 Three of these are needed for the static comb. Which one is NOT needed? (a) dry hair (b) a balloon (c) tiny paper bits (d) turmeric powder
12. 12.🔮 Predict: a charged comb is held near a thin stream of tap water. What happens? (a) the water stops (b) nothing at all (c) the water freezes (d) the stream bends
13. 13.🔍 Which is the odd one out? (a) puffed rice (b) a brick (c) a steel spoon (d) a heavy book
14. 14.⚖️ 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 hair (c) number of rubs
15. 15.🧺 Which of these is needed for the static comb? (a) turmeric powder (b) a mirror (c) yeast (d) a plastic comb
16. 16.True or false: a mirror is needed for the static comb. (a) True (b) False
17. 17.🔍 Which is the odd one out? (a) a brick (b) a thin water stream (c) a steel spoon (d) a heavy book
18. 18.🧺 Three of these are needed for the static comb. Which one is NOT needed? (a) yeast (b) a balloon (c) dry hair (d) tiny paper bits
19. 19.True or false: dry hair jumps to a charged comb. (a) False (b) True
20. 20.True or false: puffed rice jumps to a charged comb. (a) False (b) True
21. 21.⚖️ 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 comb (b) number of rubs (c) the paper bit size (d) distance to the paper
22. 22.⚖️ 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) number of rubs (c) the same comb
23. 23.⚖️ Fair test — does rubbing the comb more times pick up more paper bits? True or false: the same hair is what we measure. (a) True (b) False
24. 24.True or false: a brick does not move to a charged comb. (a) True (b) False
25. 25.⚡ Which of these jumps to a charged comb? (a) a brick (b) puffed rice (c) a steel spoon (d) a heavy book
26. 26.⚡ Why does the rubbed comb pull the paper bits? (a) it is hot (b) it is sticky (c) it is a magnet (d) it has static charge
27. 27.⚖️ Fair test — does rubbing the comb more times pick up more paper bits? What do we do with “paper bits picked up”? (a) we keep it the same (b) we change it (c) we measure it
28. 28.🧺 Do we need a plastic comb for the static comb? (a) not needed (b) needed
29. 29.⚡ A rubbed comb is held near thermocol bits. What happens? (a) does not move (b) jumps to the comb
30. 30.🔍 Which is the odd one out? (a) puffed rice (b) a brick (c) thermocol bits (d) dry hair
31. 31.🧺 Which of these is needed for the static comb? (a) a magnet (b) tiny paper bits (c) yeast (d) vinegar
32. 32.🧺 Three of these are needed for the static comb. Which one is NOT needed? (a) dry hair (b) a plastic comb (c) a magnet (d) a balloon
33. 33.⚡ You comb dry hair and hold the comb near tiny paper bits. What happens? (a) they turn wet (b) they turn blue (c) nothing happens (d) the bits jump to it
34. 34.⚖️ 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
35. 35.🧺 Do we need tiny paper bits for the static comb? (a) not needed (b) needed
36. 36.⚡ A rubbed comb is held near a steel spoon. What happens? (a) jumps to the comb (b) does not move
37. 37.⚖️ 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
38. 38.📘 Rubbing moves tiny charges. What do we call the charge that builds up? (a) gravity (b) static electricity (c) magnetism (d) sunlight
39. 39.⚖️ 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
40. 40.🧺 Do we need dry hair for the static comb? (a) needed (b) not needed

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