Periscope STEM Project Worksheet

Science experiments lesson 28: Mirror periscope · Set 639 · 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.🔍 Which is the odd one out? (a) a mirror (b) black cloth (c) a rough wooden board (d) a dull brick
2. 2.🔮 Predict: you cover the top mirror with paper. What do you see? (a) a rainbow (b) only darkness (c) two pictures (d) a brighter view
3. 3.⚖️ Fair test — does the angle of the mirrors change how clearly you see? True or false: the angle of the mirrors is the one thing we change. (a) False (b) True
4. 4.🔭 Which of these reflects light well? (a) black cloth (b) a mirror (c) a dull brick (d) dark soil
5. 5.🔭 Why must the two mirrors face each other and be parallel? (a) so it looks shiny (b) to make it heavy (c) so it can float (d) so light reaches the eye
6. 6.🔍 Which is the odd one out? (a) a rough wooden board (b) a shiny steel plate (c) black cloth (d) a dull brick
7. 7.⚖️ Fair test — does the angle of the mirrors change how clearly you see? Which of these is kept the same? (a) how clear the view is (b) the angle of the mirrors (c) the same carton
8. 8.🔍 Which is the odd one out? (a) a mirror (b) still clear water (c) a rough wooden board (d) aluminium foil
9. 9.🔍 Which is the odd one out? (a) a mirror (b) aluminium foil (c) a shiny steel plate (d) a dull brick
10. 10.🔭 How many mirrors does a simple periscope use?
11. 11.⚖️ 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
12. 12.🧺 Do we need a ruler for the periscope? (a) needed (b) not needed
13. 13.🔮 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
14. 14.⚖️ Fair test — does the angle of the mirrors change how clearly you see? Which of these is kept the same? (a) the same mirrors (b) the angle of the mirrors (c) how clear the view is
15. 15.🛟 You must never point a periscope or a mirror at ___. (a) a friend’s toy (b) a tree (c) a wall (d) the Sun
16. 16.🧺 Three of these are needed for the periscope. Which one is NOT needed? (a) a balloon (b) a ruler (c) a pencil (d) sticky tape
17. 17.🔭 Does aluminium foil reflect light well or poorly? (a) reflects light well (b) reflects light poorly
18. 18.🧺 Three of these are needed for the periscope. Which one is NOT needed? (a) an empty juice carton (b) yeast (c) a ruler (d) two small mirrors
19. 19.True or false: an empty juice carton is not needed for the periscope. (a) True (b) False
20. 20.🧺 Do we need a pencil for the periscope? (a) not needed (b) needed
21. 21.🔍 Which is the odd one out? (a) a mirror (b) aluminium foil (c) still clear water (d) black cloth
22. 22.🔭 Which of these reflects light well? (a) still clear water (b) black cloth (c) a rough wooden board (d) a dull brick
23. 23.True or false: a balloon is needed for the periscope. (a) False (b) True
24. 24.🧺 Which of these is not needed for the periscope? (a) a ruler (b) two small mirrors (c) turmeric powder (d) an empty juice carton
25. 25.⚖️ Fair test — does the angle of the mirrors change how clearly you see? What do we do with “the object we look at”? (a) we keep it the same (b) we change it (c) we measure it
26. 26.🧺 Which of these is needed for the periscope? (a) a balloon (b) two small mirrors (c) a battery cell (d) vinegar
27. 27.🧺 Three of these are needed for the periscope. Which one is NOT needed? (a) an empty juice carton (b) a pencil (c) a magnet (d) sticky tape
28. 28.🧺 Which of these is not needed for the periscope? (a) yeast (b) a ruler (c) an empty juice carton (d) a pencil
29. 29.🛟 Which mirrors are safest for a children’s periscope? (a) plastic safety mirrors (b) big wall mirrors (c) broken glass bits (d) loose glass panes
30. 30.📘 Light bouncing off a mirror is called ___. (a) reflection (b) magnetism (c) evaporation (d) refraction
31. 31.🔭 How many times does light bounce off a mirror in a simple periscope?
32. 32.⚖️ Fair test — does the angle of the mirrors change how clearly you see? What do we do with “how clear the view is”? (a) we change it (b) we keep it the same (c) we measure it
33. 33.True or false: two small mirrors is needed for the periscope. (a) True (b) False
34. 34.⚖️ Fair test — does the angle of the mirrors change how clearly you see? Which of these is the one thing we change? (a) the object we look at (b) the same mirrors (c) the angle of the mirrors (d) how clear the view is
35. 35.⚖️ 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
36. 36.🔍 Which is the odd one out? (a) a rough wooden board (b) still clear water (c) black cloth (d) a dull brick
37. 37.⚖️ 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 keep it the same (b) we measure it (c) we change it
38. 38.🔭 Which of these reflects light poorly? (a) still clear water (b) aluminium foil (c) a shiny steel plate (d) black cloth
39. 39.True or false: a mirror reflects light well. (a) False (b) True
40. 40.🧺 Three of these are needed for the periscope. Which one is NOT needed? (a) an empty juice carton (b) a ruler (c) vinegar (d) sticky tape

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