Periscope STEM Project Worksheet

Science experiments lesson 28: Mirror periscope · Set 419 · 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.🔭 Does a mirror reflect light well or poorly? (a) reflects light well (b) reflects light poorly
2. 2.🔍 Which is the odd one out? (a) dark soil (b) a rough wooden board (c) black cloth (d) aluminium foil
3. 3.🧺 Three of these are needed for the periscope. Which one is NOT needed? (a) a battery cell (b) a ruler (c) two small mirrors (d) sticky tape
4. 4.⚖️ 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
5. 5.🧺 Do we need a pencil for the periscope? (a) needed (b) not needed
6. 6.True or false: black cloth reflects light poorly. (a) False (b) True
7. 7.🔭 Why must the two mirrors face each other and be parallel? (a) so it can float (b) to make it heavy (c) so light reaches the eye (d) so it looks shiny
8. 8.🧺 Three of these are needed for the periscope. Which one is NOT needed? (a) a balloon (b) a ruler (c) two small mirrors (d) an empty juice carton
9. 9.🧺 Do we need an empty juice carton for the periscope? (a) needed (b) not needed
10. 10.🧺 Do we need two small mirrors for the periscope? (a) needed (b) not needed
11. 11.🔭 How many times does light bounce off a mirror in a simple periscope?
12. 12.🔭 Does a shiny steel plate reflect light well or poorly? (a) reflects light poorly (b) reflects light well
13. 13.🔭 Does a dull brick reflect light well or poorly? (a) reflects light poorly (b) reflects light well
14. 14.True or false: aluminium foil reflects light poorly. (a) True (b) False
15. 15.⚖️ Fair test — does the angle of the mirrors change how clearly you see? Which of these is what we measure? (a) the same carton (b) the angle of the mirrors (c) how clear the view is (d) the same light
16. 16.🔍 Which is the odd one out? (a) a rough wooden board (b) aluminium foil (c) a mirror (d) still clear water
17. 17.🔮 Predict: you cover the top mirror with paper. What do you see? (a) only darkness (b) two pictures (c) a brighter view (d) a rainbow
18. 18.⚖️ Fair test — does the angle of the mirrors change how clearly you see? Which of these is the one thing we change? (a) the angle of the mirrors (b) the same mirrors (c) how clear the view is (d) the same carton
19. 19.🔮 Predict: you make the periscope tube twice as tall. You can see over ___. (a) nothing at all (b) the ground (c) taller walls (d) only short walls
20. 20.True or false: dark soil reflects light poorly. (a) True (b) False
21. 21.🧺 Do we need a battery cell for the periscope? (a) not needed (b) needed
22. 22.🧺 Three of these are needed for the periscope. Which one is NOT needed? (a) a pencil (b) vinegar (c) an empty juice carton (d) a ruler
23. 23.🧺 Three of these are needed for the periscope. Which one is NOT needed? (a) turmeric powder (b) sticky tape (c) an empty juice carton (d) a pencil
24. 24.🛟 You must never point a periscope or a mirror at ___. (a) a friend’s toy (b) a wall (c) the Sun (d) a tree
25. 25.🧺 Three of these are needed for the periscope. Which one is NOT needed? (a) an empty juice carton (b) a magnet (c) sticky tape (d) two small mirrors
26. 26.🔍 Which is the odd one out? (a) a shiny steel plate (b) a rough wooden board (c) black cloth (d) dark soil
27. 27.🔭 Which of these reflects light poorly? (a) a mirror (b) aluminium foil (c) still clear water (d) a rough wooden board
28. 28.🔭 How many mirrors does a simple periscope use?
29. 29.True or false: a rough wooden board reflects light well. (a) True (b) False
30. 30.🔭 Which of these reflects light well? (a) dark soil (b) still clear water (c) a dull brick (d) black cloth
31. 31.🔮 Predict: you hold a written word up to a mirror. The letters look ___. (a) upside down only (b) much bigger (c) in colour (d) flipped left to right
32. 32.⚖️ Fair test — does the angle of the mirrors change how clearly you see? True or false: the same mirrors is what we measure. (a) False (b) True
33. 33.🔭 Which of these reflects light well? (a) dark soil (b) black cloth (c) a rough wooden board (d) aluminium foil
34. 34.📘 Light bouncing off a mirror is called ___. (a) evaporation (b) refraction (c) reflection (d) magnetism
35. 35.🔭 Does a rough wooden board reflect light well or poorly? (a) reflects light well (b) reflects light poorly
36. 36.🔭 Which of these reflects light well? (a) a mirror (b) dark soil (c) a dull brick (d) black cloth
37. 37.🧺 Which of these is needed for the periscope? (a) sticky tape (b) turmeric powder (c) vinegar (d) a battery cell
38. 38.True or false: black cloth reflects light well. (a) False (b) True
39. 39.🧺 Do we need a balloon for the periscope? (a) not needed (b) needed
40. 40.True or false: a ruler is not needed for the periscope. (a) True (b) False

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