Static Electricity Experiment Worksheet

Science experiments lesson 21: Static electricity: comb and paper bits · Set 401 · 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.🧺 Three of these are needed for the static comb. Which one is NOT needed? (a) a plastic comb (b) tiny paper bits (c) a balloon (d) vinegar
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 measure it (b) we keep it the same (c) we change it
3. 3.⚡ Which of these jumps to a charged comb? (a) a heavy book (b) a pebble (c) a brick (d) dry hair
4. 4.True or false: a brick jumps to a charged comb. (a) True (b) False
5. 5.🧺 Three of these are needed for the static comb. Which one is NOT needed? (a) a plastic comb (b) a mirror (c) dry hair (d) a balloon
6. 6.🧺 Do we need vinegar for the static comb? (a) needed (b) not needed
7. 7.⚖️ Fair test — does rubbing the comb more times pick up more paper bits? What do we do with “the paper bit size”? (a) we change it (b) we measure it (c) we keep it the same
8. 8.🔍 Which is the odd one out? (a) a brick (b) a heavy book (c) a steel spoon (d) puffed rice
9. 9.⚡ A rubbed comb is held near thermocol bits. 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? Which of these is what we measure? (a) paper bits picked up (b) distance to the paper (c) the same hair (d) number of rubs
11. 11.True or false: tiny paper bits is needed for the static comb. (a) False (b) True
12. 12.🔍 Which is the odd one out? (a) a steel spoon (b) a heavy book (c) dry hair (d) a pebble
13. 13.🧺 Three of these are needed for the static comb. Which one is NOT needed? (a) tiny paper bits (b) a plastic comb (c) dry hair (d) yeast
14. 14.🧺 Which of these is needed for the static comb? (a) yeast (b) a magnet (c) a mirror (d) dry hair
15. 15.🛟 There is lightning outside. Where is it safest to be? (a) under a tall tree (b) in an open field (c) indoors (d) on a rooftop
16. 16.⚖️ 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) False (b) True
17. 17.🧺 Which of these is not needed for the static comb? (a) a balloon (b) tiny paper bits (c) dry hair (d) vinegar
18. 18.⚡ A rubbed comb is held near puffed rice. What happens? (a) does not move (b) jumps to the comb
19. 19.⚖️ 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 paper bit size (c) number of rubs
20. 20.True or false: a magnet is not needed for the static comb. (a) False (b) True
21. 21.⚡ Which of these does not move to a charged comb? (a) a thin water stream (b) puffed rice (c) tiny paper bits (d) a pebble
22. 22.🔍 Which is the odd one out? (a) dry hair (b) a heavy book (c) thermocol bits (d) tiny paper bits
23. 23.⚡ Which of these jumps to a charged comb? (a) a heavy book (b) tiny paper bits (c) a steel spoon (d) a pebble
24. 24.True or false: dry hair is not needed for the static comb. (a) True (b) False
25. 25.⚖️ 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
26. 26.🔮 Predict: a charged comb is held near a thin stream of tap water. What happens? (a) nothing at all (b) the water stops (c) the water freezes (d) the stream bends
27. 27.🔮 Predict: you wet the comb before trying again. What happens? (a) it becomes a magnet (b) it works better (c) it lights up (d) it hardly works
28. 28.True or false: tiny paper bits is not needed for the static comb. (a) True (b) False
29. 29.🔍 Which is the odd one out? (a) a steel spoon (b) a thin water stream (c) a brick (d) a heavy book
30. 30.⚡ You comb dry hair and hold the comb near tiny paper bits. What happens? (a) the bits jump to it (b) nothing happens (c) they turn wet (d) they turn blue
31. 31.🧺 Which of these is needed for the static comb? (a) a magnet (b) yeast (c) a plastic comb (d) turmeric powder
32. 32.🛟 Static from a comb is safe. Which electricity must children never play with? (a) paper bits on a comb (b) a rubbed balloon (c) plug points at home (d) a rubbed plastic comb
33. 33.⚡ A rubbed comb is held near a heavy book. What happens? (a) jumps to the comb (b) does not move
34. 34.True or false: a pebble jumps to a charged comb. (a) False (b) True
35. 35.⚖️ Fair test — does rubbing the comb more times pick up more paper bits? True or false: the same hair is kept the same. (a) True (b) False
36. 36.⚡ A rubbed comb is held near a thin water stream. What happens? (a) jumps to the comb (b) does not move
37. 37.⚡ A rubbed comb is held near a pebble. What happens? (a) jumps to the comb (b) does not move
38. 38.🔮 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 sticks for a while (d) it bursts at once
39. 39.🔍 Which is the odd one out? (a) a thin water stream (b) dry hair (c) puffed rice (d) a pebble
40. 40.⚖️ Fair test — does rubbing the comb more times pick up more paper bits? True or false: the same hair is the one thing we change. (a) True (b) False

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