Static Electricity Experiment Worksheet

Science experiments lesson 21: Static electricity: comb and paper bits · Set 815 · 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.🧺 Do we need turmeric powder for the static comb? (a) not needed (b) needed
2. 2.⚡ Which of these does not move to a charged comb? (a) a thin water stream (b) tiny paper bits (c) dry hair (d) a steel spoon
3. 3.🧺 Three of these are needed for the static comb. Which one is NOT needed? (a) a plastic comb (b) tiny paper bits (c) dry hair (d) a mirror
4. 4.🔮 Predict: a charged comb is held near a thin stream of tap water. What happens? (a) nothing at all (b) the water stops (c) the stream bends (d) the water freezes
5. 5.🛟 There is lightning outside. Where is it safest to be? (a) on a rooftop (b) in an open field (c) indoors (d) under a tall tree
6. 6.🧺 Which of these is needed for the static comb? (a) yeast (b) a plastic comb (c) a mirror (d) vinegar
7. 7.⚡ Which of these does not move to a charged comb? (a) thermocol bits (b) tiny paper bits (c) a heavy book (d) puffed rice
8. 8.⚖️ Fair test — does rubbing the comb more times pick up more paper bits? Which of these is the one thing we change? (a) number of rubs (b) paper bits picked up (c) the same comb (d) distance to the paper
9. 9.True or false: yeast is needed for the static comb. (a) True (b) False
10. 10.True or false: a magnet is not needed for the static comb. (a) True (b) False
11. 11.True or false: puffed rice does not move to a charged comb. (a) True (b) False
12. 12.⚖️ Fair test — does rubbing the comb more times pick up more paper bits? True or false: the same comb is what we measure. (a) False (b) True
13. 13.⚡ A rubbed comb is held near tiny paper bits. What happens? (a) jumps to the comb (b) does not move
14. 14.⚖️ 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) False (b) True
15. 15.⚡ A rubbed comb is held near dry hair. What happens? (a) jumps to the comb (b) does not move
16. 16.🧺 Do we need yeast for the static comb? (a) not needed (b) needed
17. 17.🔍 Which is the odd one out? (a) puffed rice (b) dry hair (c) thermocol bits (d) a heavy book
18. 18.True or false: a mirror is not needed for the static comb. (a) False (b) True
19. 19.⚡ A rubbed comb is held near thermocol bits. What happens? (a) jumps to the comb (b) does not move
20. 20.🔍 Which is the odd one out? (a) tiny paper bits (b) a pebble (c) thermocol bits (d) dry hair
21. 21.🛟 Static from a comb is safe. Which electricity must children never play with? (a) a rubbed balloon (b) a rubbed plastic comb (c) plug points at home (d) paper bits on a comb
22. 22.🔮 Predict: you rub a balloon on dry hair and hold it on a wall. What happens? (a) it falls straight down (b) it bursts at once (c) it sticks for a while (d) it turns into water
23. 23.🧺 Do we need vinegar for the static comb? (a) needed (b) not needed
24. 24.🧺 Three of these are needed for the static comb. Which one is NOT needed? (a) tiny paper bits (b) a magnet (c) a plastic comb (d) dry hair
25. 25.🔮 Predict: you wet the comb before trying again. What happens? (a) it hardly works (b) it lights up (c) it becomes a magnet (d) it works better
26. 26.True or false: a steel spoon does not move to a charged comb. (a) True (b) False
27. 27.🧺 Do we need dry hair for the static comb? (a) needed (b) not needed
28. 28.True or false: turmeric powder is not needed for the static comb. (a) False (b) True
29. 29.⚡ Which of these jumps to a charged comb? (a) tiny paper bits (b) a steel spoon (c) a brick (d) a pebble
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.⚖️ 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
32. 32.True or false: yeast is not needed for the static comb. (a) False (b) True
33. 33.🧺 Three of these are needed for the static comb. Which one is NOT needed? (a) a plastic comb (b) a balloon (c) dry hair (d) a battery cell
34. 34.🧺 Do we need a magnet for the static comb? (a) not needed (b) needed
35. 35.🔍 Which is the odd one out? (a) tiny paper bits (b) thermocol bits (c) dry hair (d) a steel spoon
36. 36.🧺 Three of these are needed for the static comb. Which one is NOT needed? (a) a balloon (b) vinegar (c) a plastic comb (d) tiny paper bits
37. 37.True or false: a plastic comb is needed for the static comb. (a) False (b) True
38. 38.⚖️ Fair test — does rubbing the comb more times pick up more paper bits? What do we do with “the same comb”? (a) we keep it the same (b) we change it (c) we measure it
39. 39.⚖️ 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 keep it the same (c) we change it
40. 40.🧺 Which of these is needed for the static comb? (a) dry hair (b) a mirror (c) a magnet (d) a battery cell

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