Static Electricity Experiment Worksheet

Science experiments lesson 21: Static electricity: comb and paper bits · Set 575 · 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.True or false: tiny paper bits jumps to a charged comb. (a) False (b) True
2. 2.True or false: thermocol bits jumps to a charged comb. (a) True (b) False
3. 3.⚖️ Fair test — does rubbing the comb more times pick up more paper bits? True or false: number of rubs is what we measure. (a) True (b) False
4. 4.⚖️ 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
5. 5.True or false: vinegar is not needed for the static comb. (a) False (b) True
6. 6.🧺 Which of these is needed for the static comb? (a) yeast (b) dry hair (c) a mirror (d) a magnet
7. 7.⚡ Why does the rubbed comb pull the paper bits? (a) it is a magnet (b) it is sticky (c) it is hot (d) it has static charge
8. 8.🧺 Three of these are needed for the static comb. Which one is NOT needed? (a) a mirror (b) a balloon (c) tiny paper bits (d) a plastic comb
9. 9.🧺 Three of these are needed for the static comb. Which one is NOT needed? (a) tiny paper bits (b) vinegar (c) a plastic comb (d) a balloon
10. 10.🔍 Which is the odd one out? (a) a pebble (b) a steel spoon (c) dry hair (d) a brick
11. 11.⚖️ Fair test — does rubbing the comb more times pick up more paper bits? What do we do with “paper bits picked up”? (a) we change it (b) we measure it (c) we keep it the same
12. 12.🧺 Do we need turmeric powder for the static comb? (a) needed (b) not needed
13. 13.⚡ A rubbed comb is held near a brick. What happens? (a) does not move (b) jumps to the comb
14. 14.🧺 Three of these are needed for the static comb. Which one is NOT needed? (a) dry hair (b) a plastic comb (c) a balloon (d) a battery cell
15. 15.🧺 Which of these is not needed for the static comb? (a) tiny paper bits (b) a balloon (c) yeast (d) dry hair
16. 16.🔍 Which is the odd one out? (a) a heavy book (b) a thin water stream (c) thermocol bits (d) tiny paper bits
17. 17.True or false: turmeric powder is needed for the static comb. (a) False (b) True
18. 18.🔮 Predict: you rub a balloon on dry hair and hold it on a wall. What happens? (a) it turns into water (b) it sticks for a while (c) it bursts at once (d) it falls straight down
19. 19.📘 Rubbing moves tiny charges. What do we call the charge that builds up? (a) gravity (b) static electricity (c) sunlight (d) magnetism
20. 20.🛟 There is lightning outside. Where is it safest to be? (a) indoors (b) under a tall tree (c) on a rooftop (d) in an open field
21. 21.⚖️ 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 comb (b) distance to the paper (c) the same hair (d) number of rubs
22. 22.🧺 Which of these is not needed for the static comb? (a) a balloon (b) dry hair (c) vinegar (d) a plastic comb
23. 23.True or false: a plastic comb is not needed for the static comb. (a) False (b) True
24. 24.True or false: a mirror is not needed for the static comb. (a) False (b) True
25. 25.⚡ A rubbed comb is held near thermocol bits. What happens? (a) jumps to the comb (b) does not move
26. 26.🔮 Predict: a charged comb is held near a thin stream of tap water. What happens? (a) the water freezes (b) the stream bends (c) nothing at all (d) the water stops
27. 27.⚡ Which of these jumps to a charged comb? (a) dry hair (b) a brick (c) a pebble (d) a heavy book
28. 28.🔍 Which is the odd one out? (a) a steel spoon (b) thermocol bits (c) a heavy book (d) a brick
29. 29.⚡ A rubbed comb is held near dry hair. What happens? (a) jumps to the comb (b) does not move
30. 30.⚖️ Fair test — does rubbing the comb more times pick up more paper bits? Which of these is what we measure? (a) the same hair (b) distance to the paper (c) the paper bit size (d) paper bits picked up
31. 31.🔍 Which is the odd one out? (a) a pebble (b) tiny paper bits (c) a thin water stream (d) thermocol bits
32. 32.🛟 Static from a comb is safe. Which electricity must children never play with? (a) a rubbed plastic comb (b) paper bits on a comb (c) plug points at home (d) a rubbed balloon
33. 33.🔮 Predict: you wet the comb before trying again. What happens? (a) it becomes a magnet (b) it lights up (c) it hardly works (d) it works better
34. 34.⚡ A rubbed comb is held near puffed rice. What happens? (a) jumps to the comb (b) does not move
35. 35.True or false: a steel spoon jumps to a charged comb. (a) True (b) False
36. 36.⚡ Why does the comb trick work best on a dry day? (a) water adds charge (b) damp air leaks charge (c) wet hair is magnetic (d) dry days are noisy
37. 37.True or false: tiny paper bits is not needed for the static comb. (a) True (b) False
38. 38.True or false: dry hair is not needed for the static comb. (a) False (b) True
39. 39.⚡ Which of these does not move to a charged comb? (a) tiny paper bits (b) dry hair (c) a brick (d) puffed rice
40. 40.True or false: puffed rice does not move to a charged comb. (a) False (b) True

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