Periscope STEM Project Worksheet

Science experiments lesson 28: Mirror periscope · Set 876 · 40 questions

What you do (Bounce, bounce, see): 1. An adult cuts a window near the top on one side of the carton and near the bottom on the other. 2. Tape one mirror at 45° behind each window, the two mirrors facing each other. 3. Look into the bottom window and adjust the mirrors until the view is clear. 4. Peep over a table or wall — never point it at the Sun.

1. 1.True or false: two small mirrors is needed for the periscope. (a) True (b) False
2. 2.📘 Light bouncing off a mirror is called ___. (a) magnetism (b) reflection (c) evaporation (d) refraction
3. 3.🧺 Do we need yeast for the periscope? (a) needed (b) not needed
4. 4.⚖️ Fair test — does the angle of the mirrors change how clearly you see? Which of these is the one thing we change? (a) the same light (b) the same mirrors (c) the angle of the mirrors (d) the object we look at
5. 5.🧺 Which of these is needed for the periscope? (a) yeast (b) a battery cell (c) a balloon (d) sticky tape
6. 6.⚖️ Fair test — does the angle of the mirrors change how clearly you see? Which of these is what we measure? (a) the same light (b) how clear the view is (c) the same mirrors (d) the object we look at
7. 7.🧺 Which of these is not needed for the periscope? (a) sticky tape (b) yeast (c) an empty juice carton (d) two small mirrors
8. 8.🧺 Which of these is needed for the periscope? (a) a balloon (b) vinegar (c) yeast (d) two small mirrors
9. 9.True or false: an empty juice carton is not needed for the periscope. (a) False (b) True
10. 10.True or false: yeast is not needed for the periscope. (a) False (b) True
11. 11.🔭 How many times does light bounce off a mirror in a simple periscope?
12. 12.True or false: dark soil reflects light poorly. (a) False (b) True
13. 13.⚖️ Fair test — does the angle of the mirrors change how clearly you see? True or false: the same mirrors is kept the same. (a) False (b) True
14. 14.🛟 You must never point a periscope or a mirror at ___. (a) a wall (b) a friend’s toy (c) a tree (d) the Sun
15. 15.🔭 What does a periscope let you do? (a) hear far sounds (b) see over a wall (c) see germs (d) see in the dark
16. 16.🔭 Does still clear water reflect light well or poorly? (a) reflects light poorly (b) reflects light well
17. 17.🔮 Predict: you make the periscope tube twice as tall. You can see over ___. (a) nothing at all (b) the ground (c) only short walls (d) taller walls
18. 18.🔍 Which is the odd one out? (a) a rough wooden board (b) a mirror (c) a dull brick (d) black cloth
19. 19.🛟 Which mirrors are safest for a children’s periscope? (a) broken glass bits (b) plastic safety mirrors (c) big wall mirrors (d) loose glass panes
20. 20.🔭 Which of these reflects light well? (a) a rough wooden board (b) aluminium foil (c) dark soil (d) a dull brick
21. 21.⚖️ Fair test — does the angle of the mirrors change how clearly you see? True or false: the same light is kept the same. (a) True (b) False
22. 22.⚖️ Fair test — does the angle of the mirrors change how clearly you see? True or false: the same carton is the one thing we change. (a) False (b) True
23. 23.🔭 Which of these reflects light well? (a) a rough wooden board (b) a dull brick (c) still clear water (d) dark soil
24. 24.True or false: a magnet is not needed for the periscope. (a) False (b) True
25. 25.🔍 Which is the odd one out? (a) a mirror (b) dark soil (c) still clear water (d) aluminium foil
26. 26.🔭 How many mirrors does a simple periscope use?
27. 27.🔭 Does a dull brick reflect light well or poorly? (a) reflects light poorly (b) reflects light well
28. 28.🧺 Three of these are needed for the periscope. Which one is NOT needed? (a) two small mirrors (b) sticky tape (c) vinegar (d) an empty juice carton
29. 29.🧺 Do we need a pencil for the periscope? (a) needed (b) not needed
30. 30.⚖️ Fair test — does the angle of the mirrors change how clearly you see? True or false: the same carton is what we measure. (a) True (b) False
31. 31.🧺 Do we need sticky tape for the periscope? (a) not needed (b) needed
32. 32.🔍 Which is the odd one out? (a) still clear water (b) a mirror (c) black cloth (d) aluminium foil
33. 33.⚖️ Fair test — does the angle of the mirrors change how clearly you see? True or false: how clear the view is is kept the same. (a) False (b) True
34. 34.⚖️ Fair test — does the angle of the mirrors change how clearly you see? Which of these is kept the same? (a) the same carton (b) how clear the view is (c) the angle of the mirrors
35. 35.True or false: an empty juice carton is needed for the periscope. (a) True (b) False
36. 36.True or false: two small mirrors is not needed for the periscope. (a) True (b) False
37. 37.True or false: still clear water reflects light poorly. (a) True (b) False
38. 38.🧺 Do we need a battery cell for the periscope? (a) not needed (b) needed
39. 39.🧺 Which of these is not needed for the periscope? (a) sticky tape (b) a pencil (c) a ruler (d) turmeric powder
40. 40.True or false: a battery cell is needed for the periscope. (a) True (b) False

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