Static Electricity Experiment Worksheet

Science experiments lesson 21: Static electricity: comb and paper bits · Set 718 · 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 puffed rice. What happens? (a) jumps to the comb (b) does not move
2. 2.🔍 Which is the odd one out? (a) dry hair (b) a thin water stream (c) a heavy book (d) puffed rice
3. 3.True or false: a steel spoon jumps to a charged comb. (a) True (b) False
4. 4.🔍 Which is the odd one out? (a) a pebble (b) thermocol bits (c) a steel spoon (d) a brick
5. 5.🧺 Which of these is needed for the static comb? (a) tiny paper bits (b) yeast (c) turmeric powder (d) a mirror
6. 6.⚡ Why does the rubbed comb pull the paper bits? (a) it has static charge (b) it is hot (c) it is a magnet (d) it is sticky
7. 7.⚖️ 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
8. 8.⚡ Which of these does not move to a charged comb? (a) thermocol bits (b) a thin water stream (c) a heavy book (d) puffed rice
9. 9.🛟 Static from a comb is safe. Which electricity must children never play with? (a) plug points at home (b) a rubbed balloon (c) a rubbed plastic comb (d) paper bits on a comb
10. 10.🧺 Do we need a mirror for the static comb? (a) not needed (b) needed
11. 11.🔍 Which is the odd one out? (a) a thin water stream (b) a brick (c) puffed rice (d) thermocol bits
12. 12.🧺 Which of these is not needed for the static comb? (a) a plastic comb (b) vinegar (c) dry hair (d) tiny paper bits
13. 13.🔍 Which is the odd one out? (a) a thin water stream (b) dry hair (c) tiny paper bits (d) a pebble
14. 14.📘 Rubbing moves tiny charges. What do we call the charge that builds up? (a) sunlight (b) magnetism (c) static electricity (d) gravity
15. 15.⚖️ Fair test — does rubbing the comb more times pick up more paper bits? What do we do with “distance to the paper”? (a) we measure it (b) we keep it the same (c) we change it
16. 16.⚡ You comb dry hair and hold the comb near tiny paper bits. What happens? (a) nothing happens (b) they turn wet (c) they turn blue (d) the bits jump to it
17. 17.⚡ Which of these does not move to a charged comb? (a) a thin water stream (b) dry hair (c) tiny paper bits (d) a brick
18. 18.True or false: tiny paper bits is needed for the static comb. (a) False (b) True
19. 19.🔮 Predict: you wet the comb before trying again. What happens? (a) it becomes a magnet (b) it hardly works (c) it lights up (d) it works better
20. 20.⚡ Which big natural spark is caused by static electricity? (a) the wind (b) lightning (c) dew (d) a rainbow
21. 21.🔮 Predict: you rub a balloon on dry hair and hold it on a wall. What happens? (a) it falls straight down (b) it turns into water (c) it sticks for a while (d) it bursts at once
22. 22.🧺 Three of these are needed for the static comb. Which one is NOT needed? (a) a balloon (b) dry hair (c) tiny paper bits (d) a battery cell
23. 23.⚡ A rubbed comb is held near tiny paper bits. What happens? (a) jumps to the comb (b) does not move
24. 24.🧺 Which of these is not needed for the static comb? (a) dry hair (b) a balloon (c) a plastic comb (d) a magnet
25. 25.True or false: a brick jumps to a charged comb. (a) False (b) True
26. 26.⚖️ Fair test — does rubbing the comb more times pick up more paper bits? True or false: the same comb is the one thing we change. (a) True (b) False
27. 27.🧺 Which of these is not needed for the static comb? (a) a plastic comb (b) a battery cell (c) dry hair (d) tiny paper bits
28. 28.⚖️ 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) the same hair (c) number of rubs
29. 29.⚡ A rubbed comb is held near a steel spoon. What happens? (a) jumps to the comb (b) does not move
30. 30.🧺 Three of these are needed for the static comb. Which one is NOT needed? (a) dry hair (b) a plastic comb (c) a balloon (d) vinegar
31. 31.⚡ Why does the comb trick work best on a dry day? (a) water adds charge (b) dry days are noisy (c) wet hair is magnetic (d) damp air leaks charge
32. 32.⚖️ Fair test — does rubbing the comb more times pick up more paper bits? Which of these is the one thing we change? (a) the same hair (b) number of rubs (c) the paper bit size (d) the same comb
33. 33.⚖️ Fair test — does rubbing the comb more times pick up more paper bits? Which of these is what we measure? (a) number of rubs (b) distance to the paper (c) paper bits picked up (d) the same hair
34. 34.True or false: a thin water stream does not move to a charged comb. (a) True (b) False
35. 35.⚖️ Fair test — does rubbing the comb more times pick up more paper bits? True or false: the same hair is what we measure. (a) False (b) True
36. 36.🔍 Which is the odd one out? (a) a brick (b) a pebble (c) puffed rice (d) a heavy book
37. 37.⚖️ 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
38. 38.True or false: a brick does not move to a charged comb. (a) True (b) False
39. 39.🧺 Three of these are needed for the static comb. Which one is NOT needed? (a) a magnet (b) dry hair (c) a balloon (d) a plastic comb
40. 40.⚡ Which of these does not move to a charged comb? (a) dry hair (b) thermocol bits (c) a thin water stream (d) a steel spoon

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