Static Electricity Experiment Worksheet

Science experiments lesson 21: Static electricity: comb and paper bits · Set 861 · 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.🔮 Predict: a charged comb is held near a thin stream of tap water. What happens? (a) the water freezes (b) nothing at all (c) the water stops (d) the stream bends
2. 2.⚖️ 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) number of rubs (c) the paper bit size (d) paper bits picked up
3. 3.⚖️ 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
4. 4.🧺 Do we need vinegar for the static comb? (a) not needed (b) needed
5. 5.⚖️ 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) the paper bit size (c) distance to the paper (d) paper bits picked up
6. 6.⚖️ Fair test — does rubbing the comb more times pick up more paper bits? What do we do with “paper bits picked up”? (a) we keep it the same (b) we measure it (c) we change it
7. 7.🧺 Do we need a battery cell for the static comb? (a) needed (b) not needed
8. 8.🔮 Predict: you rub a balloon on dry hair and hold it on a wall. What happens? (a) it sticks for a while (b) it turns into water (c) it bursts at once (d) it falls straight down
9. 9.🧺 Which of these is needed for the static comb? (a) turmeric powder (b) tiny paper bits (c) a magnet (d) a mirror
10. 10.⚖️ Fair test — does rubbing the comb more times pick up more paper bits? What do we do with “number of rubs”? (a) we measure it (b) we change it (c) we keep it the same
11. 11.🧺 Three of these are needed for the static comb. Which one is NOT needed? (a) tiny paper bits (b) dry hair (c) a magnet (d) a plastic comb
12. 12.True or false: a brick does not move to a charged comb. (a) False (b) True
13. 13.🧺 Three of these are needed for the static comb. Which one is NOT needed? (a) yeast (b) a plastic comb (c) tiny paper bits (d) dry hair
14. 14.🔮 Predict: you wet the comb before trying again. What happens? (a) it hardly works (b) it works better (c) it lights up (d) it becomes a magnet
15. 15.True or false: turmeric powder is not needed for the static comb. (a) True (b) False
16. 16.🧺 Which of these is not needed for the static comb? (a) tiny paper bits (b) a magnet (c) a balloon (d) a plastic comb
17. 17.True or false: dry hair is not needed for the static comb. (a) False (b) True
18. 18.🔍 Which is the odd one out? (a) a brick (b) a thin water stream (c) a heavy book (d) a pebble
19. 19.🛟 There is lightning outside. Where is it safest to be? (a) under a tall tree (b) indoors (c) in an open field (d) on a rooftop
20. 20.🧺 Which of these is needed for the static comb? (a) a magnet (b) a battery cell (c) dry hair (d) a mirror
21. 21.🧺 Three of these are needed for the static comb. Which one is NOT needed? (a) a balloon (b) a plastic comb (c) dry hair (d) a mirror
22. 22.True or false: yeast is needed for the static comb. (a) True (b) False
23. 23.🧺 Do we need tiny paper bits for the static comb? (a) needed (b) not needed
24. 24.⚡ Which of these does not move to a charged comb? (a) dry hair (b) thermocol bits (c) a pebble (d) tiny paper bits
25. 25.⚖️ 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
26. 26.⚖️ Fair test — does rubbing the comb more times pick up more paper bits? True or false: number of rubs is what we measure. (a) True (b) False
27. 27.⚡ Which big natural spark is caused by static electricity? (a) the wind (b) a rainbow (c) dew (d) lightning
28. 28.📘 Rubbing moves tiny charges. What do we call the charge that builds up? (a) magnetism (b) sunlight (c) static electricity (d) gravity
29. 29.🔍 Which is the odd one out? (a) tiny paper bits (b) a pebble (c) a steel spoon (d) a brick
30. 30.True or false: a magnet is needed for the static comb. (a) False (b) True
31. 31.True or false: tiny paper bits is needed for the static comb. (a) True (b) False
32. 32.True or false: vinegar is needed for the static comb. (a) True (b) False
33. 33.🧺 Which of these is not needed for the static comb? (a) a plastic comb (b) tiny paper bits (c) dry hair (d) a mirror
34. 34.⚖️ Fair test — does rubbing the comb more times pick up more paper bits? True or false: distance to the paper is what we measure. (a) False (b) True
35. 35.🛟 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
36. 36.⚖️ 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) True (b) False
37. 37.True or false: a balloon is needed for the static comb. (a) False (b) True
38. 38.⚡ Which of these jumps to a charged comb? (a) dry hair (b) a brick (c) a steel spoon (d) a heavy book
39. 39.True or false: turmeric powder is needed for the static comb. (a) True (b) False
40. 40.⚡ Which of these jumps to a charged comb? (a) a heavy book (b) tiny paper bits (c) a brick (d) a pebble

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