Static Electricity Experiment Worksheet

Science experiments lesson 21: Static electricity: comb and paper bits · Set 875 · 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.⚡ Which of these jumps to a charged comb? (a) a brick (b) a heavy book (c) a pebble (d) thermocol bits
2. 2.🛟 Static from a comb is safe. Which electricity must children never play with? (a) paper bits on a comb (b) plug points at home (c) a rubbed plastic comb (d) a rubbed balloon
3. 3.⚖️ 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 hair (c) paper bits picked up
4. 4.⚖️ 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
5. 5.⚡ Which of these does not move to a charged comb? (a) dry hair (b) tiny paper bits (c) a pebble (d) puffed rice
6. 6.🔮 Predict: a charged comb is held near a thin stream of tap water. What happens? (a) the water stops (b) the water freezes (c) nothing at all (d) the stream bends
7. 7.🔮 Predict: you wet the comb before trying again. What happens? (a) it lights up (b) it becomes a magnet (c) it works better (d) it hardly works
8. 8.🛟 There is lightning outside. Where is it safest to be? (a) indoors (b) on a rooftop (c) under a tall tree (d) in an open field
9. 9.🧺 Three of these are needed for the static comb. Which one is NOT needed? (a) tiny paper bits (b) a plastic comb (c) a balloon (d) yeast
10. 10.🧺 Do we need vinegar for the static comb? (a) needed (b) not needed
11. 11.🧺 Which of these is needed for the static comb? (a) dry hair (b) yeast (c) a battery cell (d) a magnet
12. 12.⚖️ 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 same comb (c) the same hair (d) distance to the paper
13. 13.⚖️ Fair test — does rubbing the comb more times pick up more paper bits? What do we do with “distance to the paper”? (a) we keep it the same (b) we measure it (c) we change it
14. 14.🧺 Which of these is not needed for the static comb? (a) a plastic comb (b) a balloon (c) yeast (d) dry hair
15. 15.True or false: a heavy book jumps to a charged comb. (a) False (b) True
16. 16.🔮 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 falls straight down (d) it sticks for a while
17. 17.⚖️ 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
18. 18.True or false: turmeric powder is not needed for the static comb. (a) False (b) True
19. 19.True or false: tiny paper bits is not needed for the static comb. (a) True (b) False
20. 20.⚡ A rubbed comb is held near a thin water stream. What happens? (a) jumps to the comb (b) does not move
21. 21.True or false: a magnet is not needed for the static comb. (a) False (b) True
22. 22.🧺 Three of these are needed for the static comb. Which one is NOT needed? (a) a plastic comb (b) dry hair (c) a balloon (d) a magnet
23. 23.🔍 Which is the odd one out? (a) a pebble (b) a thin water stream (c) puffed rice (d) thermocol bits
24. 24.🧺 Do we need yeast for the static comb? (a) needed (b) not needed
25. 25.🧺 Do we need tiny paper bits for the static comb? (a) needed (b) not needed
26. 26.⚡ Which of these does not move to a charged comb? (a) a brick (b) a thin water stream (c) puffed rice (d) tiny paper bits
27. 27.⚖️ Fair test — does rubbing the comb more times pick up more paper bits? True or false: the same comb is kept the same. (a) True (b) False
28. 28.⚡ Why does the comb trick work best on a dry day? (a) damp air leaks charge (b) wet hair is magnetic (c) dry days are noisy (d) water adds charge
29. 29.True or false: thermocol bits does not move to a charged comb. (a) True (b) False
30. 30.⚖️ Fair test — does rubbing the comb more times pick up more paper bits? True or false: distance to the paper is what we measure. (a) False (b) True
31. 31.⚖️ 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) False (b) True
32. 32.🔍 Which is the odd one out? (a) a heavy book (b) thermocol bits (c) a steel spoon (d) a brick
33. 33.⚖️ 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) the same hair (c) paper bits picked up (d) number of rubs
34. 34.🧺 Three of these are needed for the static comb. Which one is NOT needed? (a) turmeric powder (b) dry hair (c) a plastic comb (d) a balloon
35. 35.🔍 Which is the odd one out? (a) a pebble (b) a steel spoon (c) a brick (d) tiny paper bits
36. 36.⚡ Which of these jumps to a charged comb? (a) a pebble (b) a brick (c) dry hair (d) a heavy book
37. 37.⚡ Which of these jumps to a charged comb? (a) tiny paper bits (b) a heavy book (c) a brick (d) a pebble
38. 38.🔍 Which is the odd one out? (a) a brick (b) tiny paper bits (c) a thin water stream (d) puffed rice
39. 39.🧺 Three of these are needed for the static comb. Which one is NOT needed? (a) a mirror (b) a plastic comb (c) tiny paper bits (d) dry hair
40. 40.🔍 Which is the odd one out? (a) a steel spoon (b) a brick (c) a pebble (d) a thin water stream

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