Static Electricity Experiment Worksheet

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

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