Static Electricity Experiment Worksheet

Science experiments lesson 21: Static electricity: comb and paper bits · Set 657 · 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.🛟 There is lightning outside. Where is it safest to be? (a) on a rooftop (b) under a tall tree (c) in an open field (d) indoors
2. 2.⚖️ 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
3. 3.⚡ Which of these does not move to a charged comb? (a) puffed rice (b) dry hair (c) a thin water stream (d) a steel spoon
4. 4.⚡ A rubbed comb is held near a steel spoon. What happens? (a) jumps to the comb (b) does not move
5. 5.🔮 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
6. 6.🔍 Which is the odd one out? (a) a pebble (b) a thin water stream (c) a brick (d) a steel spoon
7. 7.True or false: a plastic comb is needed for the static comb. (a) False (b) True
8. 8.⚡ Why does the comb trick work best on a dry day? (a) dry days are noisy (b) water adds charge (c) damp air leaks charge (d) wet hair is magnetic
9. 9.🔍 Which is the odd one out? (a) puffed rice (b) a thin water stream (c) thermocol bits (d) a heavy book
10. 10.🧺 Do we need a balloon for the static comb? (a) not needed (b) needed
11. 11.🔍 Which is the odd one out? (a) tiny paper bits (b) a brick (c) puffed rice (d) thermocol bits
12. 12.True or false: tiny paper bits is needed for the static comb. (a) True (b) False
13. 13.⚡ You comb dry hair and hold the comb near tiny paper bits. What happens? (a) nothing happens (b) the bits jump to it (c) they turn blue (d) they turn wet
14. 14.⚖️ Fair test — does rubbing the comb more times pick up more paper bits? What do we do with “number of rubs”? (a) we change it (b) we keep it the same (c) we measure it
15. 15.🧺 Do we need yeast for the static comb? (a) not needed (b) needed
16. 16.🔮 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
17. 17.True or false: yeast is needed for the static comb. (a) False (b) True
18. 18.🧺 Three of these are needed for the static comb. Which one is NOT needed? (a) a plastic comb (b) tiny paper bits (c) dry hair (d) a battery cell
19. 19.🧺 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
20. 20.True or false: a battery cell is needed for the static comb. (a) True (b) False
21. 21.🧺 Do we need a magnet for the static comb? (a) needed (b) not needed
22. 22.🧺 Three of these are needed for the static comb. Which one is NOT needed? (a) a mirror (b) tiny paper bits (c) dry hair (d) a plastic comb
23. 23.⚡ A rubbed comb is held near a heavy book. What happens? (a) does not move (b) jumps to the comb
24. 24.True or false: dry hair does not move to a charged comb. (a) False (b) True
25. 25.🧺 Do we need a plastic comb for the static comb? (a) needed (b) not needed
26. 26.⚡ A rubbed comb is held near a brick. What happens? (a) does not move (b) jumps to the comb
27. 27.🧺 Three of these are needed for the static comb. Which one is NOT needed? (a) turmeric powder (b) a plastic comb (c) a balloon (d) dry hair
28. 28.🛟 Static from a comb is safe. Which electricity must children never play with? (a) plug points at home (b) a rubbed plastic comb (c) a rubbed balloon (d) paper bits on a comb
29. 29.🔍 Which is the odd one out? (a) a thin water stream (b) thermocol bits (c) puffed rice (d) a steel spoon
30. 30.⚡ Which of these jumps to a charged comb? (a) a heavy book (b) a steel spoon (c) tiny paper bits (d) a brick
31. 31.🧺 Which of these is needed for the static comb? (a) a magnet (b) vinegar (c) yeast (d) a balloon
32. 32.True or false: a steel spoon jumps to a charged comb. (a) False (b) True
33. 33.⚖️ Fair test — does rubbing the comb more times pick up more paper bits? Which of these is the one thing we change? (a) the paper bit size (b) distance to the paper (c) number of rubs (d) the same comb
34. 34.⚡ Which of these does not move to a charged comb? (a) thermocol bits (b) a thin water stream (c) a heavy book (d) dry hair
35. 35.⚖️ Fair test — does rubbing the comb more times pick up more paper bits? True or false: paper bits picked up is kept the same. (a) True (b) False
36. 36.⚡ Which of these jumps to a charged comb? (a) a heavy book (b) a pebble (c) a brick (d) dry hair
37. 37.🧺 Which of these is not needed for the static comb? (a) a balloon (b) turmeric powder (c) dry hair (d) tiny paper bits
38. 38.⚖️ 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 change it (c) we keep it the same
39. 39.🔮 Predict: you wet the comb before trying again. What happens? (a) it hardly works (b) it works better (c) it becomes a magnet (d) it lights up
40. 40.⚖️ Fair test — does rubbing the comb more times pick up more paper bits? Which of these is what we measure? (a) number of rubs (b) the same hair (c) the same comb (d) paper bits picked up

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