Static Electricity Experiment Worksheet

Science experiments lesson 21: Static electricity: comb and paper bits · Set 122 · 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.⚖️ 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
2. 2.🛟 Static from a comb is safe. Which electricity must children never play with? (a) paper bits on a comb (b) plug points at home (c) a rubbed plastic comb (d) a rubbed balloon
3. 3.True or false: a mirror is not needed for the static comb. (a) False (b) True
4. 4.🔮 Predict: you rub a balloon on dry hair and hold it on a wall. What happens? (a) it turns into water (b) it bursts at once (c) it falls straight down (d) it sticks for a while
5. 5.🔍 Which is the odd one out? (a) thermocol bits (b) a heavy book (c) a pebble (d) a brick
6. 6.⚡ Which of these does not move to a charged comb? (a) tiny paper bits (b) dry hair (c) a pebble (d) puffed rice
7. 7.🛟 There is lightning outside. Where is it safest to be? (a) under a tall tree (b) on a rooftop (c) in an open field (d) indoors
8. 8.True or false: a heavy book does not move to a charged comb. (a) False (b) True
9. 9.🧺 Do we need a plastic comb for the static comb? (a) needed (b) not needed
10. 10.🧺 Do we need a battery cell for the static comb? (a) needed (b) not needed
11. 11.True or false: a thin water stream jumps to a charged comb. (a) False (b) True
12. 12.True or false: a thin water stream does not move to a charged comb. (a) True (b) False
13. 13.🧺 Do we need yeast for the static comb? (a) not needed (b) needed
14. 14.🔍 Which is the odd one out? (a) thermocol bits (b) tiny paper bits (c) dry hair (d) a heavy book
15. 15.⚡ Why does the rubbed comb pull the paper bits? (a) it is sticky (b) it is hot (c) it is a magnet (d) it has static charge
16. 16.True or false: yeast is not needed for the static comb. (a) True (b) False
17. 17.🔮 Predict: you wet the comb before trying again. What happens? (a) it lights up (b) it works better (c) it hardly works (d) it becomes a magnet
18. 18.🧺 Three of these are needed for the static comb. Which one is NOT needed? (a) tiny paper bits (b) dry hair (c) vinegar (d) a balloon
19. 19.⚡ 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
20. 20.🧺 Which of these is not needed for the static comb? (a) dry hair (b) tiny paper bits (c) a plastic comb (d) a magnet
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) False (b) True
22. 22.True or false: tiny paper bits is needed for the static comb. (a) False (b) True
23. 23.True or false: a plastic comb is not needed for the static comb. (a) True (b) False
24. 24.⚖️ Fair test — does rubbing the comb more times pick up more paper bits? True or false: distance to the paper is the one thing we change. (a) False (b) True
25. 25.⚖️ 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) the paper bit size (c) distance to the paper (d) paper bits picked up
26. 26.🔮 Predict: a charged comb is held near a thin stream of tap water. What happens? (a) the water freezes (b) nothing at all (c) the water stops (d) the stream bends
27. 27.⚖️ 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
28. 28.⚖️ Fair test — does rubbing the comb more times pick up more paper bits? What do we do with “the same hair”? (a) we keep it the same (b) we change it (c) we measure it
29. 29.⚖️ 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
30. 30.True or false: yeast is needed for the static comb. (a) False (b) True
31. 31.⚡ Why does the comb trick work best on a dry day? (a) dry days are noisy (b) wet hair is magnetic (c) water adds charge (d) damp air leaks charge
32. 32.🧺 Which of these is needed for the static comb? (a) dry hair (b) a mirror (c) yeast (d) vinegar
33. 33.🧺 Which of these is not needed for the static comb? (a) a balloon (b) a plastic comb (c) a battery cell (d) dry hair
34. 34.⚖️ 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) paper bits picked up (c) number of rubs (d) the same hair
35. 35.🔍 Which is the odd one out? (a) a thin water stream (b) dry hair (c) a brick (d) thermocol bits
36. 36.True or false: a magnet is not needed for the static comb. (a) False (b) True
37. 37.🔍 Which is the odd one out? (a) thermocol bits (b) a thin water stream (c) tiny paper bits (d) a pebble
38. 38.🧺 Three of these are needed for the static comb. Which one is NOT needed? (a) a balloon (b) tiny paper bits (c) a battery cell (d) a plastic comb
39. 39.🔍 Which is the odd one out? (a) a heavy book (b) puffed rice (c) a brick (d) a pebble
40. 40.True or false: a balloon is needed for the static comb. (a) False (b) True

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