Static Electricity Experiment Worksheet

Science experiments lesson 21: Static electricity: comb and paper bits · Set 318 · 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 pebble jumps to a charged comb. (a) True (b) False
2. 2.🧺 Three of these are needed for the static comb. Which one is NOT needed? (a) a magnet (b) a balloon (c) dry hair (d) a plastic comb
3. 3.🧺 Do we need dry hair for the static comb? (a) not needed (b) needed
4. 4.🔮 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
5. 5.🧺 Three of these are needed for the static comb. Which one is NOT needed? (a) a balloon (b) a plastic comb (c) turmeric powder (d) tiny paper bits
6. 6.⚡ Why does the rubbed comb pull the paper bits? (a) it is hot (b) it is sticky (c) it is a magnet (d) it has static charge
7. 7.🔍 Which is the odd one out? (a) tiny paper bits (b) a thin water stream (c) a brick (d) thermocol bits
8. 8.🧺 Three of these are needed for the static comb. Which one is NOT needed? (a) a balloon (b) tiny paper bits (c) vinegar (d) a plastic comb
9. 9.⚡ A rubbed comb is held near tiny paper bits. What happens? (a) does not move (b) jumps to the comb
10. 10.⚡ A rubbed comb is held near thermocol bits. What happens? (a) jumps to the comb (b) does not move
11. 11.🔍 Which is the odd one out? (a) tiny paper bits (b) thermocol bits (c) puffed rice (d) a pebble
12. 12.⚖️ Fair test — does rubbing the comb more times pick up more paper bits? What do we do with “the paper bit size”? (a) we change it (b) we measure it (c) we keep it the same
13. 13.⚖️ Fair test — does rubbing the comb more times pick up more paper bits? What do we do with “distance to the paper”? (a) we keep it the same (b) we change it (c) we measure it
14. 14.🔍 Which is the odd one out? (a) a heavy book (b) a pebble (c) a thin water stream (d) a steel spoon
15. 15.True or false: tiny paper bits jumps to a charged comb. (a) True (b) False
16. 16.🧺 Do we need a mirror for the static comb? (a) not needed (b) needed
17. 17.⚡ A rubbed comb is held near dry hair. What happens? (a) jumps to the comb (b) does not move
18. 18.True or false: yeast is not needed for the static comb. (a) True (b) False
19. 19.🧺 Do we need yeast for the static comb? (a) not needed (b) needed
20. 20.⚖️ 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 paper bit size
21. 21.🛟 Static from a comb is safe. Which electricity must children never play with? (a) paper bits on a comb (b) plug points at home (c) a rubbed balloon (d) a rubbed plastic comb
22. 22.🔮 Predict: a charged comb is held near a thin stream of tap water. What happens? (a) nothing at all (b) the stream bends (c) the water stops (d) the water freezes
23. 23.⚡ A rubbed comb is held near a thin water stream. What happens? (a) does not move (b) jumps to the comb
24. 24.🧺 Do we need a magnet for the static comb? (a) needed (b) not needed
25. 25.⚡ 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
26. 26.⚖️ 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) False (b) True
27. 27.⚡ A rubbed comb is held near a heavy book. What happens? (a) does not move (b) jumps to the comb
28. 28.⚡ A rubbed comb is held near a pebble. What happens? (a) does not move (b) jumps to the comb
29. 29.🛟 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
30. 30.⚖️ Fair test — does rubbing the comb more times pick up more paper bits? True or false: the paper bit size is what we measure. (a) False (b) True
31. 31.⚖️ Fair test — does rubbing the comb more times pick up more paper bits? True or false: number of rubs is kept the same. (a) False (b) True
32. 32.⚡ Which of these jumps to a charged comb? (a) a pebble (b) a heavy book (c) a brick (d) tiny paper bits
33. 33.⚖️ 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
34. 34.True or false: a brick jumps to a charged comb. (a) True (b) False
35. 35.🧺 Which of these is not needed for the static comb? (a) dry hair (b) tiny paper bits (c) a balloon (d) a magnet
36. 36.⚖️ 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 same hair (c) the paper bit size (d) number of rubs
37. 37.🧺 Do we need a plastic comb for the static comb? (a) not needed (b) needed
38. 38.⚖️ 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 keep it the same (c) we measure it
39. 39.🧺 Which of these is needed for the static comb? (a) a battery cell (b) a magnet (c) a plastic comb (d) vinegar
40. 40.True or false: puffed rice does not move to a charged comb. (a) False (b) True

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