Static Electricity Experiment Worksheet

Science experiments lesson 21: Static electricity: comb and paper bits · Set 691 · 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? Which of these is what we measure? (a) the same comb (b) distance to the paper (c) paper bits picked up (d) the same hair
2. 2.⚖️ Fair test — does rubbing the comb more times pick up more paper bits? What do we do with “the same comb”? (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? What do we do with “number of rubs”? (a) we keep it the same (b) we change it (c) we measure it
4. 4.🔮 Predict: you rub a balloon on dry hair and hold it on a wall. What happens? (a) it turns into water (b) it bursts at once (c) it sticks for a while (d) it falls straight down
5. 5.🔍 Which is the odd one out? (a) tiny paper bits (b) a pebble (c) a heavy book (d) a brick
6. 6.⚖️ 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) True (b) False
7. 7.🔍 Which is the odd one out? (a) dry hair (b) a pebble (c) tiny paper bits (d) a thin water stream
8. 8.⚡ Which of these jumps to a charged comb? (a) a heavy book (b) a pebble (c) puffed rice (d) a brick
9. 9.🧺 Three of these are needed for the static comb. Which one is NOT needed? (a) a plastic comb (b) dry hair (c) a battery cell (d) tiny paper bits
10. 10.⚡ A rubbed comb is held near dry hair. What happens? (a) jumps to the comb (b) does not move
11. 11.🔮 Predict: a charged comb is held near a thin stream of tap water. What happens? (a) the stream bends (b) the water freezes (c) nothing at all (d) the water stops
12. 12.⚡ Which of these jumps to a charged comb? (a) a heavy book (b) a steel spoon (c) a thin water stream (d) a pebble
13. 13.🧺 Which of these is not needed for the static comb? (a) dry hair (b) a magnet (c) a balloon (d) a plastic comb
14. 14.True or false: a mirror is needed for the static comb. (a) True (b) False
15. 15.🧺 Which of these is needed for the static comb? (a) turmeric powder (b) a mirror (c) a magnet (d) tiny paper bits
16. 16.🧺 Which of these is needed for the static comb? (a) dry hair (b) a battery cell (c) a mirror (d) yeast
17. 17.⚡ Which of these jumps to a charged comb? (a) a brick (b) a pebble (c) dry hair (d) a heavy book
18. 18.🔍 Which is the odd one out? (a) thermocol bits (b) tiny paper bits (c) a heavy book (d) dry hair
19. 19.🧺 Which of these is not needed for the static comb? (a) a plastic comb (b) a balloon (c) tiny paper bits (d) a mirror
20. 20.🔮 Predict: you wet the comb before trying again. What happens? (a) it hardly works (b) it lights up (c) it works better (d) it becomes a magnet
21. 21.⚡ Which of these does not move to a charged comb? (a) puffed rice (b) a pebble (c) dry hair (d) a thin water stream
22. 22.True or false: turmeric powder is not needed for the static comb. (a) True (b) False
23. 23.⚖️ 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 measure it (c) we keep it the same
24. 24.⚖️ Fair test — does rubbing the comb more times pick up more paper bits? What do we do with “the same hair”? (a) we measure it (b) we change it (c) we keep it the same
25. 25.True or false: a magnet is needed for the static comb. (a) True (b) False
26. 26.🔍 Which is the odd one out? (a) a brick (b) a steel spoon (c) thermocol bits (d) a pebble
27. 27.⚖️ 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) number of rubs (c) paper bits picked up (d) distance to the paper
28. 28.True or false: tiny paper bits is needed for the static comb. (a) True (b) False
29. 29.True or false: a balloon is needed for the static comb. (a) False (b) True
30. 30.⚖️ 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) False (b) True
31. 31.🧺 Do we need a battery cell for the static comb? (a) needed (b) not needed
32. 32.⚡ Which of these does not move to a charged comb? (a) thermocol bits (b) dry hair (c) a heavy book (d) tiny paper bits
33. 33.⚖️ 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
34. 34.True or false: dry hair is not needed for the static comb. (a) True (b) False
35. 35.🧺 Three of these are needed for the static comb. Which one is NOT needed? (a) dry hair (b) a plastic comb (c) yeast (d) a balloon
36. 36.True or false: a balloon is not needed for the static comb. (a) False (b) True
37. 37.🔍 Which is the odd one out? (a) a brick (b) dry hair (c) a heavy book (d) a steel spoon
38. 38.True or false: puffed rice does not move to a charged comb. (a) True (b) False
39. 39.⚡ 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
40. 40.🧺 Which of these is needed for the static comb? (a) a mirror (b) a balloon (c) a battery cell (d) turmeric powder

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