Static Electricity Experiment Worksheet

Science experiments lesson 21: Static electricity: comb and paper bits · Set 765 · 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.⚡ Which of these does not move to a charged comb? (a) dry hair (b) a heavy book (c) thermocol bits (d) tiny paper bits
2. 2.⚡ Which of these jumps to a charged comb? (a) a heavy book (b) a steel spoon (c) dry hair (d) a brick
3. 3.True or false: dry hair does not move to a charged comb. (a) False (b) True
4. 4.⚖️ 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 comb (b) number of rubs (c) the same hair (d) the paper bit size
5. 5.⚖️ Fair test — does rubbing the comb more times pick up more paper bits? What do we do with “the same hair”? (a) we change it (b) we measure it (c) we keep it the same
6. 6.True or false: a mirror is not needed for the static comb. (a) True (b) False
7. 7.🧺 Three of these are needed for the static comb. Which one is NOT needed? (a) a plastic comb (b) a balloon (c) tiny paper bits (d) yeast
8. 8.🧺 Which of these is needed for the static comb? (a) vinegar (b) a plastic comb (c) yeast (d) a battery cell
9. 9.⚡ Which big natural spark is caused by static electricity? (a) dew (b) the wind (c) lightning (d) a rainbow
10. 10.🔮 Predict: you rub a balloon on dry hair and hold it on a wall. What happens? (a) it bursts at once (b) it falls straight down (c) it turns into water (d) it sticks for a while
11. 11.⚖️ 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
12. 12.True or false: puffed rice jumps to a charged comb. (a) False (b) True
13. 13.⚡ Why does the comb trick work best on a dry day? (a) wet hair is magnetic (b) water adds charge (c) damp air leaks charge (d) dry days are noisy
14. 14.🔍 Which is the odd one out? (a) tiny paper bits (b) a brick (c) puffed rice (d) a thin water stream
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 keep it the same (b) we change it (c) we measure it
16. 16.⚖️ 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) False (b) True
17. 17.🧺 Three of these are needed for the static comb. Which one is NOT needed? (a) a plastic comb (b) tiny paper bits (c) a magnet (d) dry hair
18. 18.🛟 Static from a comb is safe. Which electricity must children never play with? (a) plug points at home (b) paper bits on a comb (c) a rubbed balloon (d) a rubbed plastic comb
19. 19.⚖️ Fair test — does rubbing the comb more times pick up more paper bits? True or false: paper bits picked up is kept the same. (a) False (b) True
20. 20.⚡ Which of these does not move to a charged comb? (a) dry hair (b) a thin water stream (c) thermocol bits (d) a pebble
21. 21.⚡ You comb dry hair and hold the comb near tiny paper bits. What happens? (a) the bits jump to it (b) nothing happens (c) they turn blue (d) they turn wet
22. 22.🧺 Three of these are needed for the static comb. Which one is NOT needed? (a) a balloon (b) dry hair (c) vinegar (d) tiny paper bits
23. 23.🔍 Which is the odd one out? (a) a brick (b) a pebble (c) thermocol bits (d) a steel spoon
24. 24.🔮 Predict: you wet the comb before trying again. What happens? (a) it lights up (b) it hardly works (c) it works better (d) it becomes a magnet
25. 25.⚡ A rubbed comb is held near tiny paper bits. What happens? (a) does not move (b) jumps to the comb
26. 26.⚡ Which of these does not move to a charged comb? (a) tiny paper bits (b) dry hair (c) a thin water stream (d) a steel spoon
27. 27.🧺 Do we need yeast for the static comb? (a) not needed (b) needed
28. 28.⚡ Which of these does not move to a charged comb? (a) dry hair (b) a brick (c) thermocol bits (d) a thin water stream
29. 29.True or false: a pebble jumps to a charged comb. (a) False (b) True
30. 30.🧺 Which of these is not needed for the static comb? (a) tiny paper bits (b) a battery cell (c) a plastic comb (d) dry hair
31. 31.🧺 Do we need a mirror for the static comb? (a) needed (b) not needed
32. 32.🔍 Which is the odd one out? (a) puffed rice (b) tiny paper bits (c) a pebble (d) a thin water stream
33. 33.⚡ Which of these jumps to a charged comb? (a) a steel spoon (b) a pebble (c) thermocol bits (d) a heavy book
34. 34.True or false: dry hair is needed for the static comb. (a) False (b) True
35. 35.🧺 Do we need a battery cell for the static comb? (a) not needed (b) needed
36. 36.📘 Rubbing moves tiny charges. What do we call the charge that builds up? (a) gravity (b) magnetism (c) sunlight (d) static electricity
37. 37.⚖️ 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
38. 38.🛟 There is lightning outside. Where is it safest to be? (a) on a rooftop (b) in an open field (c) under a tall tree (d) indoors
39. 39.🔍 Which is the odd one out? (a) tiny paper bits (b) a pebble (c) a brick (d) a heavy book
40. 40.⚡ Which of these jumps to a charged comb? (a) a heavy book (b) a brick (c) puffed rice (d) a steel spoon

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