Static Electricity Experiment Worksheet

Science experiments lesson 21: Static electricity: comb and paper bits · Set 595 · 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 the one thing we change. (a) False (b) True
2. 2.⚖️ 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
3. 3.True or false: puffed rice jumps to a charged comb. (a) False (b) True
4. 4.🔍 Which is the odd one out? (a) thermocol bits (b) a thin water stream (c) a pebble (d) tiny paper bits
5. 5.🔍 Which is the odd one out? (a) a heavy book (b) tiny paper bits (c) a steel spoon (d) a pebble
6. 6.⚡ Which of these does not move to a charged comb? (a) dry hair (b) a thin water stream (c) a steel spoon (d) tiny paper bits
7. 7.🧺 Do we need tiny paper bits for the static comb? (a) needed (b) not needed
8. 8.True or false: a steel spoon jumps to a charged comb. (a) False (b) True
9. 9.True or false: dry hair does not move to a charged comb. (a) False (b) True
10. 10.🔮 Predict: you rub a balloon on dry hair and hold it on a wall. What happens? (a) it falls straight down (b) it bursts at once (c) it turns into water (d) it sticks for a while
11. 11.🧺 Which of these is needed for the static comb? (a) a battery cell (b) vinegar (c) a balloon (d) a magnet
12. 12.⚖️ 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
13. 13.⚖️ 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
14. 14.⚡ Which of these does not move to a charged comb? (a) tiny paper bits (b) thermocol bits (c) dry hair (d) a heavy book
15. 15.🔮 Predict: you wet the comb before trying again. What happens? (a) it becomes a magnet (b) it hardly works (c) it works better (d) it lights up
16. 16.⚖️ Fair test — does rubbing the comb more times pick up more paper bits? True or false: the same comb is what we measure. (a) False (b) True
17. 17.⚖️ Fair test — does rubbing the comb more times pick up more paper bits? Which of these is kept the same? (a) number of rubs (b) paper bits picked up (c) the paper bit size
18. 18.🧺 Do we need a magnet for the static comb? (a) needed (b) not needed
19. 19.⚖️ Fair test — does rubbing the comb more times pick up more paper bits? Which of these is the one thing we change? (a) number of rubs (b) paper bits picked up (c) distance to the paper (d) the same hair
20. 20.🧺 Three of these are needed for the static comb. Which one is NOT needed? (a) dry hair (b) yeast (c) tiny paper bits (d) a balloon
21. 21.⚡ Which of these jumps to a charged comb? (a) a heavy book (b) thermocol bits (c) a steel spoon (d) a brick
22. 22.🧺 Which of these is needed for the static comb? (a) a mirror (b) a battery cell (c) tiny paper bits (d) yeast
23. 23.⚡ Why does the comb trick work best on a dry day? (a) wet hair is magnetic (b) dry days are noisy (c) damp air leaks charge (d) water adds charge
24. 24.🧺 Do we need yeast for the static comb? (a) needed (b) not needed
25. 25.⚖️ 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 keep it the same (c) we change it
26. 26.🧺 Three of these are needed for the static comb. Which one is NOT needed? (a) tiny paper bits (b) a plastic comb (c) a balloon (d) a mirror
27. 27.🧺 Three of these are needed for the static comb. Which one is NOT needed? (a) a balloon (b) a magnet (c) a plastic comb (d) dry hair
28. 28.True or false: puffed rice does not move to a charged comb. (a) False (b) True
29. 29.⚖️ 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 measure it (c) we change it
30. 30.⚡ Which of these jumps to a charged comb? (a) a thin water stream (b) a steel spoon (c) a heavy book (d) a pebble
31. 31.True or false: a steel spoon does not move to a charged comb. (a) False (b) True
32. 32.⚡ You comb dry hair and hold the comb near tiny paper bits. What happens? (a) nothing happens (b) the bits jump to it (c) they turn blue (d) they turn wet
33. 33.🔮 Predict: a charged comb is held near a thin stream of tap water. What happens? (a) the water stops (b) nothing at all (c) the water freezes (d) the stream bends
34. 34.True or false: thermocol bits does not move to a charged comb. (a) False (b) True
35. 35.🔍 Which is the odd one out? (a) dry hair (b) thermocol bits (c) a brick (d) a thin water stream
36. 36.🛟 Static from a comb is safe. Which electricity must children never play with? (a) paper bits on a comb (b) a rubbed balloon (c) a rubbed plastic comb (d) plug points at home
37. 37.True or false: a plastic comb is needed for the static comb. (a) True (b) False
38. 38.🛟 There is lightning outside. Where is it safest to be? (a) in an open field (b) under a tall tree (c) on a rooftop (d) indoors
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? True or false: distance to the paper is kept the same. (a) True (b) False

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