Static Electricity Experiment Worksheet

Science experiments lesson 21: Static electricity: comb and paper bits · Set 594 · 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? What do we do with “the paper bit size”? (a) we measure it (b) we keep it the same (c) we change it
2. 2.⚖️ Fair test — does rubbing the comb more times pick up more paper bits? True or false: number of rubs is kept the same. (a) False (b) True
3. 3.🔮 Predict: a charged comb is held near a thin stream of tap water. What happens? (a) the water freezes (b) the water stops (c) nothing at all (d) the stream bends
4. 4.🧺 Do we need a plastic comb for the static comb? (a) needed (b) not needed
5. 5.True or false: a steel spoon does not move to a charged comb. (a) False (b) True
6. 6.🧺 Which of these is needed for the static comb? (a) a plastic comb (b) a magnet (c) vinegar (d) yeast
7. 7.⚡ A rubbed comb is held near tiny paper bits. What happens? (a) does not move (b) jumps to the comb
8. 8.⚖️ Fair test — does rubbing the comb more times pick up more paper bits? What do we do with “the same comb”? (a) we keep it the same (b) we measure it (c) we change it
9. 9.🧺 Which of these is not needed for the static comb? (a) dry hair (b) a plastic comb (c) tiny paper bits (d) a magnet
10. 10.True or false: turmeric powder is not needed for the static comb. (a) True (b) False
11. 11.⚡ Which of these does not move to a charged comb? (a) a brick (b) dry hair (c) tiny paper bits (d) thermocol bits
12. 12.🧺 Three of these are needed for the static comb. Which one is NOT needed? (a) yeast (b) tiny paper bits (c) a plastic comb (d) dry hair
13. 13.🧺 Do we need a balloon for the static comb? (a) not needed (b) needed
14. 14.🔍 Which is the odd one out? (a) thermocol bits (b) a brick (c) puffed rice (d) dry hair
15. 15.⚡ You comb dry hair and hold the comb near tiny paper bits. What happens? (a) the bits jump to it (b) they turn blue (c) they turn wet (d) nothing happens
16. 16.⚖️ 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
17. 17.🛟 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
18. 18.⚡ Which of these jumps to a charged comb? (a) a heavy book (b) a brick (c) a steel spoon (d) dry hair
19. 19.⚖️ Fair test — does rubbing the comb more times pick up more paper bits? Which of these is the one thing we change? (a) number of rubs (b) the paper bit size (c) distance to the paper (d) paper bits picked up
20. 20.⚡ A rubbed comb is held near dry hair. What happens? (a) does not move (b) jumps to the comb
21. 21.True or false: yeast is needed for the static comb. (a) False (b) True
22. 22.🧺 Which of these is not needed for the static comb? (a) tiny paper bits (b) a plastic comb (c) turmeric powder (d) a balloon
23. 23.⚖️ 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
24. 24.🧺 Do we need yeast for the static comb? (a) needed (b) not needed
25. 25.🧺 Three of these are needed for the static comb. Which one is NOT needed? (a) turmeric powder (b) a plastic comb (c) tiny paper bits (d) a balloon
26. 26.⚡ A rubbed comb is held near a thin water stream. What happens? (a) jumps to the comb (b) does not move
27. 27.True or false: dry hair jumps to a charged comb. (a) True (b) False
28. 28.⚖️ 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
29. 29.⚡ Which of these does not move to a charged comb? (a) dry hair (b) puffed rice (c) a heavy book (d) a thin water stream
30. 30.⚖️ 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) distance to the paper
31. 31.⚖️ 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 same hair (c) number of rubs (d) the same comb
32. 32.True or false: a mirror is needed for the static comb. (a) True (b) False
33. 33.⚡ A rubbed comb is held near a heavy book. What happens? (a) does not move (b) jumps to the comb
34. 34.⚡ Which of these jumps to a charged comb? (a) a brick (b) a pebble (c) a steel spoon (d) tiny paper bits
35. 35.🔮 Predict: you rub a balloon on dry hair and hold it on a wall. What happens? (a) it falls straight down (b) it turns into water (c) it bursts at once (d) it sticks for a while
36. 36.True or false: a pebble does not move to a charged comb. (a) True (b) False
37. 37.🔍 Which is the odd one out? (a) a thin water stream (b) tiny paper bits (c) dry hair (d) a heavy book
38. 38.⚖️ 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
39. 39.⚖️ Fair test — does rubbing the comb more times pick up more paper bits? True or false: the paper bit size is what we measure. (a) False (b) True
40. 40.🔍 Which is the odd one out? (a) a heavy book (b) a brick (c) tiny paper bits (d) a steel spoon

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