Static Electricity Experiment Worksheet

Science experiments lesson 21: Static electricity: comb and paper bits · Set 507 · 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: a mirror is needed for the static comb. (a) True (b) False
2. 2.True or false: a steel spoon does not move to a charged comb. (a) False (b) True
3. 3.🔮 Predict: you wet the comb before trying again. What happens? (a) it hardly works (b) it becomes a magnet (c) it works better (d) it lights up
4. 4.⚖️ Fair test — does rubbing the comb more times pick up more paper bits? Which of these is what we measure? (a) paper bits picked up (b) the same comb (c) number of rubs (d) distance to the paper
5. 5.⚡ A rubbed comb is held near thermocol bits. What happens? (a) jumps to the comb (b) does not move
6. 6.🧺 Which of these is needed for the static comb? (a) a battery cell (b) a balloon (c) yeast (d) turmeric powder
7. 7.🔍 Which is the odd one out? (a) a pebble (b) a heavy book (c) a steel spoon (d) puffed rice
8. 8.⚖️ 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) True (b) False
9. 9.True or false: tiny paper bits does not move to a charged comb. (a) False (b) True
10. 10.⚡ A rubbed comb is held near a heavy book. What happens? (a) does not move (b) jumps to the comb
11. 11.⚡ A rubbed comb is held near a pebble. What happens? (a) does not move (b) jumps to the comb
12. 12.⚡ Which of these jumps to a charged comb? (a) a pebble (b) a heavy book (c) a steel spoon (d) puffed rice
13. 13.🧺 Three of these are needed for the static comb. Which one is NOT needed? (a) a plastic comb (b) a magnet (c) tiny paper bits (d) dry hair
14. 14.True or false: tiny paper bits is needed for the static comb. (a) False (b) True
15. 15.⚖️ Fair test — does rubbing the comb more times pick up more paper bits? True or false: distance to the paper is the one thing we change. (a) False (b) True
16. 16.🛟 There is lightning outside. Where is it safest to be? (a) indoors (b) under a tall tree (c) in an open field (d) on a rooftop
17. 17.⚡ A rubbed comb is held near dry hair. What happens? (a) does not move (b) jumps to the comb
18. 18.🔮 Predict: you rub a balloon on dry hair and hold it on a wall. What happens? (a) it sticks for a while (b) it falls straight down (c) it turns into water (d) it bursts at once
19. 19.🔍 Which is the odd one out? (a) a pebble (b) a heavy book (c) a steel spoon (d) a thin water stream
20. 20.🧺 Three of these are needed for the static comb. Which one is NOT needed? (a) dry hair (b) vinegar (c) a balloon (d) a plastic comb
21. 21.🧺 Do we need turmeric powder for the static comb? (a) not needed (b) needed
22. 22.🔍 Which is the odd one out? (a) puffed rice (b) a thin water stream (c) a heavy book (d) dry hair
23. 23.⚖️ 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) number of rubs (c) distance to the paper (d) the same hair
24. 24.⚖️ Fair test — does rubbing the comb more times pick up more paper bits? Which of these is kept the same? (a) paper bits picked up (b) number of rubs (c) the same comb
25. 25.True or false: dry hair jumps to a charged comb. (a) True (b) False
26. 26.True or false: a thin water stream does not move to a charged comb. (a) False (b) True
27. 27.True or false: a battery cell is not needed for the static comb. (a) False (b) True
28. 28.True or false: a pebble does not move to a charged comb. (a) False (b) True
29. 29.True or false: dry hair 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? What do we do with “number of rubs”? (a) we keep it the same (b) we measure it (c) we change it
31. 31.⚡ Why does the comb trick work best on a dry day? (a) water adds charge (b) damp air leaks charge (c) dry days are noisy (d) wet hair is magnetic
32. 32.⚡ Which big natural spark is caused by static electricity? (a) dew (b) a rainbow (c) the wind (d) lightning
33. 33.True or false: thermocol bits jumps to a charged comb. (a) True (b) False
34. 34.🧺 Which of these is needed for the static comb? (a) a mirror (b) a plastic comb (c) yeast (d) a magnet
35. 35.⚡ Which of these does not move to a charged comb? (a) puffed rice (b) a thin water stream (c) tiny paper bits (d) a brick
36. 36.⚡ 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
37. 37.🔮 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
38. 38.⚡ A rubbed comb is held near a brick. What happens? (a) jumps to the comb (b) does not move
39. 39.🔍 Which is the odd one out? (a) a pebble (b) thermocol bits (c) a heavy book (d) a brick
40. 40.🛟 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) a rubbed balloon (d) plug points at home

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