Periscope STEM Project Worksheet

Science experiments lesson 28: Mirror periscope · Set 745 · 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.⚖️ 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
2. 2.🔍 Which is the odd one out? (a) a rough wooden board (b) a dull brick (c) aluminium foil (d) black cloth
3. 3.True or false: a battery cell is not needed for the periscope. (a) True (b) False
4. 4.🧺 Do we need an empty juice carton for the periscope? (a) needed (b) not needed
5. 5.True or false: vinegar is needed for the periscope. (a) True (b) False
6. 6.⚖️ Fair test — does the angle of the mirrors change how clearly you see? What do we do with “the same mirrors”? (a) we change it (b) we keep it the same (c) we measure it
7. 7.🧺 Which of these is not needed for the periscope? (a) a ruler (b) an empty juice carton (c) a balloon (d) sticky tape
8. 8.🧺 Which of these is not needed for the periscope? (a) vinegar (b) two small mirrors (c) a pencil (d) an empty juice carton
9. 9.🔍 Which is the odd one out? (a) dark soil (b) a shiny steel plate (c) a rough wooden board (d) black cloth
10. 10.🔭 What does a periscope let you do? (a) see over a wall (b) see germs (c) see in the dark (d) hear far sounds
11. 11.🧺 Three of these are needed for the periscope. Which one is NOT needed? (a) an empty juice carton (b) a pencil (c) a balloon (d) two small mirrors
12. 12.⚖️ Fair test — does the angle of the mirrors change how clearly you see? What do we do with “the same carton”? (a) we keep it the same (b) we change it (c) we measure it
13. 13.True or false: sticky tape is not needed for the periscope. (a) True (b) False
14. 14.🔭 Does still clear water reflect light well or poorly? (a) reflects light well (b) reflects light poorly
15. 15.🔭 How many times does light bounce off a mirror in a simple periscope?
16. 16.🔍 Which is the odd one out? (a) a rough wooden board (b) dark soil (c) a mirror (d) a dull brick
17. 17.🔭 Does black cloth reflect light well or poorly? (a) reflects light well (b) reflects light poorly
18. 18.⚖️ Fair test — does the angle of the mirrors change how clearly you see? True or false: the same carton is what we measure. (a) False (b) True
19. 19.🧺 Which of these is needed for the periscope? (a) vinegar (b) a balloon (c) turmeric powder (d) a pencil
20. 20.⚖️ Fair test — does the angle of the mirrors change how clearly you see? What do we do with “the same light”? (a) we measure it (b) we change it (c) we keep it the same
21. 21.🧺 Three of these are needed for the periscope. Which one is NOT needed? (a) a ruler (b) yeast (c) two small mirrors (d) an empty juice carton
22. 22.📘 Light bouncing off a mirror is called ___. (a) evaporation (b) refraction (c) magnetism (d) reflection
23. 23.True or false: a magnet is not needed for the periscope. (a) True (b) False
24. 24.🔭 Which of these reflects light poorly? (a) still clear water (b) a dull brick (c) a shiny steel plate (d) a mirror
25. 25.True or false: an empty juice carton is needed for the periscope. (a) False (b) True
26. 26.🛟 You must never point a periscope or a mirror at ___. (a) a friend’s toy (b) the Sun (c) a tree (d) a wall
27. 27.🔍 Which is the odd one out? (a) a rough wooden board (b) still clear water (c) a mirror (d) a shiny steel plate
28. 28.🔭 Which of these reflects light well? (a) dark soil (b) a dull brick (c) a rough wooden board (d) still clear water
29. 29.⚖️ Fair test — does the angle of the mirrors change how clearly you see? What do we do with “the angle of the mirrors”? (a) we change it (b) we measure it (c) we keep it the same
30. 30.⚖️ Fair test — does the angle of the mirrors change how clearly you see? Which of these is the one thing we change? (a) how clear the view is (b) the angle of the mirrors (c) the same carton (d) the same light
31. 31.🔭 Does a dull brick reflect light well or poorly? (a) reflects light well (b) reflects light poorly
32. 32.🔭 Why must the two mirrors face each other and be parallel? (a) so light reaches the eye (b) so it can float (c) to make it heavy (d) so it looks shiny
33. 33.🧺 Three of these are needed for the periscope. Which one is NOT needed? (a) a magnet (b) a ruler (c) a pencil (d) an empty juice carton
34. 34.🔍 Which is the odd one out? (a) a rough wooden board (b) still clear water (c) black cloth (d) dark soil
35. 35.🔭 Which of these reflects light poorly? (a) dark soil (b) a shiny steel plate (c) still clear water (d) a mirror
36. 36.🔭 Does aluminium foil reflect light well or poorly? (a) reflects light well (b) reflects light poorly
37. 37.True or false: a mirror reflects light poorly. (a) True (b) False
38. 38.🧺 Do we need two small mirrors for the periscope? (a) not needed (b) needed
39. 39.🧺 Do we need a balloon for the periscope? (a) needed (b) not needed
40. 40.🧺 Do we need a battery cell for the periscope? (a) needed (b) not needed

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