Static Electricity Experiment Worksheet

Science experiments lesson 21: Static electricity: comb and paper bits · Set 660 · 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 is needed for the static comb? (a) yeast (b) a plastic comb (c) a battery cell (d) a mirror
2. 2.🔍 Which is the odd one out? (a) tiny paper bits (b) dry hair (c) a heavy book (d) a thin water stream
3. 3.🔮 Predict: you wet the comb before trying again. What happens? (a) it lights up (b) it works better (c) it becomes a magnet (d) it hardly works
4. 4.⚖️ Fair test — does rubbing the comb more times pick up more paper bits? True or false: number of rubs is the one thing we change. (a) True (b) False
5. 5.True or false: a brick jumps to a charged comb. (a) True (b) False
6. 6.🔍 Which is the odd one out? (a) a steel spoon (b) tiny paper bits (c) a heavy book (d) a brick
7. 7.True or false: a mirror is needed for the static comb. (a) True (b) False
8. 8.True or false: a battery cell is needed for the static comb. (a) True (b) False
9. 9.🧺 Do we need tiny paper bits for the static comb? (a) not needed (b) needed
10. 10.🔮 Predict: a charged comb is held near a thin stream of tap water. What happens? (a) the stream bends (b) the water freezes (c) the water stops (d) nothing at all
11. 11.🛟 Static from a comb is safe. Which electricity must children never play with? (a) a rubbed plastic comb (b) a rubbed balloon (c) plug points at home (d) paper bits on a comb
12. 12.⚖️ Fair test — does rubbing the comb more times pick up more paper bits? True or false: the same comb is kept the same. (a) False (b) True
13. 13.⚡ Which of these jumps to a charged comb? (a) a heavy book (b) a steel spoon (c) a thin water stream (d) a pebble
14. 14.🧺 Do we need yeast for the static comb? (a) not needed (b) needed
15. 15.🔍 Which is the odd one out? (a) a heavy book (b) a brick (c) dry hair (d) a steel spoon
16. 16.⚡ Which of these does not move to a charged comb? (a) a thin water stream (b) puffed rice (c) a steel spoon (d) tiny paper bits
17. 17.⚖️ Fair test — does rubbing the comb more times pick up more paper bits? Which of these is the one thing we change? (a) distance to the paper (b) the paper bit size (c) number of rubs (d) the same hair
18. 18.True or false: vinegar is not needed for the static comb. (a) False (b) True
19. 19.🧺 Three of these are needed for the static comb. Which one is NOT needed? (a) dry hair (b) a balloon (c) a plastic comb (d) vinegar
20. 20.🧺 Do we need turmeric powder for the static comb? (a) needed (b) not needed
21. 21.⚡ A rubbed comb is held near tiny paper bits. What happens? (a) does not move (b) jumps to the comb
22. 22.True or false: a plastic comb is not needed for the static comb. (a) True (b) False
23. 23.🛟 There is lightning outside. Where is it safest to be? (a) under a tall tree (b) on a rooftop (c) in an open field (d) indoors
24. 24.🧺 Which of these is needed for the static comb? (a) yeast (b) a battery cell (c) dry hair (d) a mirror
25. 25.⚡ You comb dry hair and hold the comb near tiny paper bits. What happens? (a) the bits jump to it (b) they turn wet (c) they turn blue (d) nothing happens
26. 26.True or false: a battery cell is not needed for the static comb. (a) True (b) False
27. 27.🔍 Which is the odd one out? (a) a steel spoon (b) a brick (c) a heavy book (d) puffed rice
28. 28.True or false: a plastic comb is needed for the static comb. (a) False (b) True
29. 29.True or false: tiny paper bits is not needed for the static comb. (a) True (b) False
30. 30.⚡ 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
31. 31.🧺 Three of these are needed for the static comb. Which one is NOT needed? (a) a magnet (b) dry hair (c) tiny paper bits (d) a balloon
32. 32.🔍 Which is the odd one out? (a) dry hair (b) a brick (c) thermocol bits (d) puffed rice
33. 33.⚖️ 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) paper bits picked up (c) distance to the paper
34. 34.⚖️ Fair test — does rubbing the comb more times pick up more paper bits? What do we do with “distance to the paper”? (a) we measure it (b) we keep it the same (c) we change it
35. 35.⚡ Which big natural spark is caused by static electricity? (a) a rainbow (b) lightning (c) the wind (d) dew
36. 36.🧺 Which of these is not needed for the static comb? (a) a plastic comb (b) turmeric powder (c) tiny paper bits (d) a balloon
37. 37.🧺 Which of these is needed for the static comb? (a) vinegar (b) tiny paper bits (c) a battery cell (d) turmeric powder
38. 38.⚖️ Fair test — does rubbing the comb more times pick up more paper bits? True or false: the same hair is what we measure. (a) True (b) False
39. 39.⚡ A rubbed comb is held near a steel spoon. What happens? (a) does not move (b) jumps to the comb
40. 40.⚖️ 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

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