Static Electricity Experiment Worksheet

Science experiments lesson 21: Static electricity: comb and paper bits · Set 412 · 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.⚡ A rubbed comb is held near a thin water stream. What happens? (a) jumps to the comb (b) does not move
2. 2.🔮 Predict: a charged comb is held near a thin stream of tap water. What happens? (a) the water stops (b) the water freezes (c) nothing at all (d) the stream bends
3. 3.⚖️ 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) True (b) False
4. 4.🧺 Do we need a mirror for the static comb? (a) not needed (b) needed
5. 5.⚖️ Fair test — does rubbing the comb more times pick up more paper bits? What do we do with “paper bits picked up”? (a) we measure it (b) we keep it the same (c) we change it
6. 6.🧺 Which of these is needed for the static comb? (a) yeast (b) a battery cell (c) a plastic comb (d) a mirror
7. 7.True or false: a pebble jumps to a charged comb. (a) False (b) True
8. 8.True or false: a heavy book does not move to a charged comb. (a) False (b) True
9. 9.🔍 Which is the odd one out? (a) a pebble (b) dry hair (c) a brick (d) a steel spoon
10. 10.True or false: tiny paper bits is not needed for the static comb. (a) True (b) False
11. 11.🧺 Do we need dry hair for the static comb? (a) needed (b) not needed
12. 12.True or false: a plastic comb is not needed for the static comb. (a) True (b) False
13. 13.🛟 There is lightning outside. Where is it safest to be? (a) on a rooftop (b) in an open field (c) indoors (d) under a tall tree
14. 14.⚖️ Fair test — does rubbing the comb more times pick up more paper bits? True or false: the paper bit size is kept the same. (a) True (b) False
15. 15.⚡ A rubbed comb is held near dry hair. What happens? (a) jumps to the comb (b) does not move
16. 16.🧺 Three of these are needed for the static comb. Which one is NOT needed? (a) a magnet (b) tiny paper bits (c) dry hair (d) a plastic comb
17. 17.⚡ Why does the comb trick work best on a dry day? (a) wet hair is magnetic (b) damp air leaks charge (c) dry days are noisy (d) water adds charge
18. 18.⚡ Which of these does not move to a charged comb? (a) a thin water stream (b) a brick (c) tiny paper bits (d) dry hair
19. 19.🧺 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) vinegar
20. 20.⚖️ 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
21. 21.⚡ Why does the rubbed comb pull the paper bits? (a) it is a magnet (b) it is sticky (c) it is hot (d) it has static charge
22. 22.⚡ You comb dry hair and hold the comb near tiny paper bits. What happens? (a) they turn wet (b) the bits jump to it (c) they turn blue (d) nothing happens
23. 23.⚖️ 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
24. 24.True or false: vinegar is needed for the static comb. (a) True (b) False
25. 25.🔍 Which is the odd one out? (a) puffed rice (b) a heavy book (c) a pebble (d) a brick
26. 26.🔮 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
27. 27.🧺 Which of these is not needed for the static comb? (a) a plastic comb (b) yeast (c) dry hair (d) a balloon
28. 28.🔮 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
29. 29.True or false: puffed rice jumps to a charged comb. (a) False (b) True
30. 30.🔍 Which is the odd one out? (a) a pebble (b) a brick (c) a steel spoon (d) a thin water stream
31. 31.🧺 Which of these is not needed for the static comb? (a) dry hair (b) vinegar (c) tiny paper bits (d) a balloon
32. 32.🛟 Static from a comb is safe. Which electricity must children never play with? (a) paper bits on a comb (b) a rubbed plastic comb (c) a rubbed balloon (d) plug points at home
33. 33.🧺 Do we need a balloon for the static comb? (a) needed (b) not needed
34. 34.⚡ A rubbed comb is held near a brick. What happens? (a) jumps to the comb (b) does not move
35. 35.🔍 Which is the odd one out? (a) a steel spoon (b) tiny paper bits (c) a pebble (d) a heavy book
36. 36.⚖️ Fair test — does rubbing the comb more times pick up more paper bits? True or false: the same hair is kept the same. (a) False (b) True
37. 37.True or false: a mirror is not needed for the static comb. (a) True (b) False
38. 38.True or false: a steel spoon does not move to a charged comb. (a) True (b) False
39. 39.True or false: a mirror is needed for the static comb. (a) True (b) False
40. 40.🔍 Which is the odd one out? (a) thermocol bits (b) a thin water stream (c) a heavy book (d) tiny paper bits

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