Static Electricity Experiment Worksheet

Science experiments lesson 21: Static electricity: comb and paper bits · Set 216 · 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: you rub a balloon on dry hair and hold it on a wall. What happens? (a) it turns into water (b) it falls straight down (c) it bursts at once (d) it sticks for a while
2. 2.⚖️ Fair test — does rubbing the comb more times pick up more paper bits? Which of these is what we measure? (a) the paper bit size (b) the same hair (c) number of rubs (d) paper bits picked up
3. 3.⚡ Which of these jumps to a charged comb? (a) a steel spoon (b) a heavy book (c) a thin water stream (d) a pebble
4. 4.🔍 Which is the odd one out? (a) a steel spoon (b) a pebble (c) a heavy book (d) thermocol bits
5. 5.🔍 Which is the odd one out? (a) a brick (b) a pebble (c) tiny paper bits (d) a steel spoon
6. 6.🧺 Do we need dry hair for the static comb? (a) not needed (b) needed
7. 7.🧺 Do we need a plastic comb for the static comb? (a) not needed (b) needed
8. 8.True or false: a thin water stream does not move to a charged comb. (a) True (b) False
9. 9.🔍 Which is the odd one out? (a) dry hair (b) tiny paper bits (c) a heavy book (d) puffed rice
10. 10.🧺 Do we need vinegar for the static comb? (a) needed (b) not needed
11. 11.⚡ Why does the rubbed comb pull the paper bits? (a) it is hot (b) it is sticky (c) it is a magnet (d) it has static charge
12. 12.🛟 There is lightning outside. Where is it safest to be? (a) indoors (b) on a rooftop (c) in an open field (d) under a tall tree
13. 13.⚡ Which big natural spark is caused by static electricity? (a) dew (b) lightning (c) the wind (d) a rainbow
14. 14.⚡ Which of these jumps to a charged comb? (a) puffed rice (b) a brick (c) a steel spoon (d) a pebble
15. 15.True or false: a thin water stream jumps to a charged comb. (a) True (b) False
16. 16.True or false: tiny paper bits does not move to a charged comb. (a) True (b) False
17. 17.🔮 Predict: you wet the comb before trying again. What happens? (a) it hardly works (b) it lights up (c) it works better (d) it becomes a magnet
18. 18.⚖️ 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
19. 19.🧺 Three of these are needed for the static comb. Which one is NOT needed? (a) a balloon (b) yeast (c) dry hair (d) tiny paper bits
20. 20.🛟 Static from a comb is safe. Which electricity must children never play with? (a) a rubbed plastic comb (b) plug points at home (c) paper bits on a comb (d) a rubbed balloon
21. 21.⚖️ 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) True (b) False
22. 22.🔍 Which is the odd one out? (a) tiny paper bits (b) a thin water stream (c) puffed rice (d) a steel spoon
23. 23.🔍 Which is the odd one out? (a) a steel spoon (b) a pebble (c) dry hair (d) a heavy book
24. 24.True or false: a battery cell is needed for the static comb. (a) False (b) True
25. 25.⚖️ Fair test — does rubbing the comb more times pick up more paper bits? What do we do with “distance to the paper”? (a) we change it (b) we measure it (c) we keep it the same
26. 26.True or false: vinegar is needed for the static comb. (a) False (b) True
27. 27.🔍 Which is the odd one out? (a) a steel spoon (b) a pebble (c) a thin water stream (d) a heavy book
28. 28.🧺 Which of these is needed for the static comb? (a) turmeric powder (b) a balloon (c) a magnet (d) a battery cell
29. 29.⚡ A rubbed comb is held near a heavy book. What happens? (a) does not move (b) jumps to the comb
30. 30.🧺 Which of these is needed for the static comb? (a) yeast (b) vinegar (c) dry hair (d) turmeric powder
31. 31.⚡ Which of these jumps to a charged comb? (a) a heavy book (b) a steel spoon (c) a pebble (d) thermocol bits
32. 32.🧺 Three of these are needed for the static comb. Which one is NOT needed? (a) dry hair (b) tiny paper bits (c) a plastic comb (d) turmeric powder
33. 33.🧺 Which of these is needed for the static comb? (a) a mirror (b) a plastic comb (c) turmeric powder (d) a battery cell
34. 34.⚡ You comb dry hair and hold the comb near tiny paper bits. What happens? (a) they turn blue (b) the bits jump to it (c) they turn wet (d) nothing happens
35. 35.True or false: a mirror is needed for the static comb. (a) True (b) False
36. 36.🧺 Which of these is not needed for the static comb? (a) dry hair (b) a magnet (c) a plastic comb (d) tiny paper bits
37. 37.True or false: a battery cell is not needed for the static comb. (a) False (b) True
38. 38.🔍 Which is the odd one out? (a) thermocol bits (b) puffed rice (c) tiny paper bits (d) a brick
39. 39.🔍 Which is the odd one out? (a) a pebble (b) thermocol bits (c) tiny paper bits (d) dry hair
40. 40.True or false: vinegar is not needed for the static comb. (a) True (b) False

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