Static Electricity Experiment Worksheet

Science experiments lesson 21: Static electricity: comb and paper bits · Set 734 · 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.⚡ A rubbed comb is held near thermocol bits. What happens? (a) does not move (b) jumps to the comb
2. 2.True or false: a battery cell is needed for the static comb. (a) False (b) True
3. 3.🧺 Do we need a plastic comb for the static comb? (a) not needed (b) needed
4. 4.🧺 Do we need tiny paper bits for the static comb? (a) not needed (b) needed
5. 5.🧺 Three of these are needed for the static comb. Which one is NOT needed? (a) a plastic comb (b) vinegar (c) a balloon (d) dry hair
6. 6.⚡ You comb dry hair and hold the comb near tiny paper bits. What happens? (a) they turn wet (b) nothing happens (c) the bits jump to it (d) they turn blue
7. 7.⚡ Which of these jumps to a charged comb? (a) puffed rice (b) a steel spoon (c) a brick (d) a heavy book
8. 8.⚡ Which of these does not move to a charged comb? (a) tiny paper bits (b) a thin water stream (c) puffed rice (d) a brick
9. 9.True or false: dry hair is needed for the static comb. (a) False (b) True
10. 10.True or false: a pebble jumps to a charged comb. (a) True (b) False
11. 11.⚖️ Fair test — does rubbing the comb more times pick up more paper bits? Which of these is what we measure? (a) the same hair (b) paper bits picked up (c) the paper bit size (d) number of rubs
12. 12.True or false: puffed rice jumps to a charged comb. (a) True (b) False
13. 13.🧺 Which of these is not needed for the static comb? (a) vinegar (b) a balloon (c) a plastic comb (d) dry hair
14. 14.🧺 Do we need a balloon for the static comb? (a) needed (b) not needed
15. 15.⚡ A rubbed comb is held near tiny paper bits. What happens? (a) does not move (b) jumps to the comb
16. 16.🔮 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 bursts at once (d) it turns into water
17. 17.True or false: puffed rice does not move to a charged comb. (a) True (b) False
18. 18.⚡ A rubbed comb is held near a thin water stream. What happens? (a) does not move (b) jumps to the comb
19. 19.⚖️ Fair test — does rubbing the comb more times pick up more paper bits? What do we do with “the same hair”? (a) we measure it (b) we change it (c) we keep it the same
20. 20.🧺 Three of these are needed for the static comb. Which one is NOT needed? (a) tiny paper bits (b) a battery cell (c) dry hair (d) a plastic comb
21. 21.⚖️ 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 keep it the same (c) we change it
22. 22.⚖️ 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
23. 23.⚖️ 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
24. 24.🔍 Which is the odd one out? (a) a steel spoon (b) a heavy book (c) a pebble (d) a thin water stream
25. 25.⚡ Which of these jumps to a charged comb? (a) a steel spoon (b) a heavy book (c) a brick (d) a thin water stream
26. 26.⚖️ Fair test — does rubbing the comb more times pick up more paper bits? True or false: the same hair is kept the same. (a) True (b) False
27. 27.⚖️ Fair test — does rubbing the comb more times pick up more paper bits? What do we do with “the same comb”? (a) we measure it (b) we change it (c) we keep it the same
28. 28.🛟 There is lightning outside. Where is it safest to be? (a) in an open field (b) on a rooftop (c) under a tall tree (d) indoors
29. 29.True or false: a steel spoon does not move to a charged comb. (a) False (b) True
30. 30.🔍 Which is the odd one out? (a) puffed rice (b) dry hair (c) tiny paper bits (d) a steel spoon
31. 31.⚖️ 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
32. 32.⚡ A rubbed comb is held near a heavy book. What happens? (a) does not move (b) jumps to the comb
33. 33.🛟 Static from a comb is safe. Which electricity must children never play with? (a) paper bits on a comb (b) a rubbed balloon (c) plug points at home (d) a rubbed plastic comb
34. 34.🔮 Predict: a charged comb is held near a thin stream of tap water. What happens? (a) the water freezes (b) the water stops (c) the stream bends (d) nothing at all
35. 35.⚡ A rubbed comb is held near dry hair. What happens? (a) jumps to the comb (b) does not move
36. 36.📘 Rubbing moves tiny charges. What do we call the charge that builds up? (a) static electricity (b) gravity (c) sunlight (d) magnetism
37. 37.⚖️ 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
38. 38.True or false: yeast is not needed for the static comb. (a) False (b) True
39. 39.True or false: dry hair does not move to a charged comb. (a) True (b) False
40. 40.True or false: a balloon is needed for the static comb. (a) True (b) False

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