Static Electricity Experiment Worksheet

Science experiments lesson 21: Static electricity: comb and paper bits · Set 284 · 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? What do we do with “number of rubs”? (a) we change it (b) we measure it (c) we keep it the same
2. 2.⚖️ Fair test — does rubbing the comb more times pick up more paper bits? What do we do with “the same hair”? (a) we keep it the same (b) we change it (c) we measure it
3. 3.🧺 Three of these are needed for the static comb. Which one is NOT needed? (a) a plastic comb (b) a balloon (c) vinegar (d) dry hair
4. 4.⚖️ 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
5. 5.⚡ A rubbed comb is held near tiny paper bits. What happens? (a) does not move (b) jumps to the comb
6. 6.⚖️ 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
7. 7.True or false: a battery cell is needed for the static comb. (a) False (b) True
8. 8.⚡ A rubbed comb is held near a pebble. What happens? (a) jumps to the comb (b) does not move
9. 9.⚖️ 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
10. 10.🔍 Which is the odd one out? (a) dry hair (b) a brick (c) a pebble (d) a steel spoon
11. 11.🛟 There is lightning outside. Where is it safest to be? (a) under a tall tree (b) in an open field (c) on a rooftop (d) indoors
12. 12.⚡ A rubbed comb is held near a thin water stream. What happens? (a) does not move (b) jumps to the comb
13. 13.⚖️ Fair test — does rubbing the comb more times pick up more paper bits? True or false: paper bits picked up is what we measure. (a) True (b) False
14. 14.⚖️ 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
15. 15.🔍 Which is the odd one out? (a) a thin water stream (b) a heavy book (c) tiny paper bits (d) puffed rice
16. 16.⚡ A rubbed comb is held near dry hair. What happens? (a) does not move (b) jumps to the comb
17. 17.True or false: a balloon is not needed for the static comb. (a) True (b) False
18. 18.⚖️ 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
19. 19.⚖️ 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) paper bits picked up (c) number of rubs (d) distance to the paper
20. 20.⚡ Which of these jumps to a charged comb? (a) a brick (b) a steel spoon (c) a heavy book (d) a thin water stream
21. 21.🧺 Three of these are needed for the static comb. Which one is NOT needed? (a) a balloon (b) dry hair (c) a plastic comb (d) yeast
22. 22.⚡ Which big natural spark is caused by static electricity? (a) a rainbow (b) lightning (c) dew (d) the wind
23. 23.True or false: dry hair does not move to a charged comb. (a) True (b) False
24. 24.🧺 Do we need tiny paper bits for the static comb? (a) needed (b) not needed
25. 25.🧺 Do we need yeast for the static comb? (a) not needed (b) needed
26. 26.True or false: a thin water stream jumps to a charged comb. (a) True (b) False
27. 27.⚡ A rubbed comb is held near a heavy book. What happens? (a) jumps to the comb (b) does not move
28. 28.🧺 Three of these are needed for the static comb. Which one is NOT needed? (a) a battery cell (b) a plastic comb (c) tiny paper bits (d) a balloon
29. 29.True or false: tiny paper bits jumps to a charged comb. (a) True (b) False
30. 30.⚖️ 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
31. 31.🧺 Which of these is needed for the static comb? (a) dry hair (b) turmeric powder (c) yeast (d) a mirror
32. 32.⚡ You comb dry hair and hold the comb near tiny paper bits. What happens? (a) they turn blue (b) the bits jump to it (c) nothing happens (d) they turn wet
33. 33.⚖️ 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) True (b) False
34. 34.🔮 Predict: you wet the comb before trying again. What happens? (a) it becomes a magnet (b) it works better (c) it hardly works (d) it lights up
35. 35.🔍 Which is the odd one out? (a) a steel spoon (b) a heavy book (c) a brick (d) puffed rice
36. 36.🛟 Static from a comb is safe. Which electricity must children never play with? (a) a rubbed balloon (b) paper bits on a comb (c) a rubbed plastic comb (d) plug points at home
37. 37.🔮 Predict: you rub a balloon on dry hair and hold it on a wall. What happens? (a) it bursts at once (b) it sticks for a while (c) it falls straight down (d) it turns into water
38. 38.True or false: vinegar is not needed for the static comb. (a) False (b) True
39. 39.True or false: a plastic comb is not needed for the static comb. (a) True (b) False
40. 40.📘 Rubbing moves tiny charges. What do we call the charge that builds up? (a) sunlight (b) magnetism (c) gravity (d) static electricity

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