Periscope STEM Project Worksheet

Science experiments lesson 28: Mirror periscope · Set 74 · 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? Which of these is what we measure? (a) the object we look at (b) the angle of the mirrors (c) how clear the view is (d) the same light
2. 2.⚖️ Fair test — does the angle of the mirrors change how clearly you see? True or false: the same light is what we measure. (a) True (b) False
3. 3.🔭 How many times does light bounce off a mirror in a simple periscope?
4. 4.🧺 Do we need yeast for the periscope? (a) needed (b) not needed
5. 5.🔭 How many mirrors does a simple periscope use?
6. 6.🔭 Which of these reflects light poorly? (a) aluminium foil (b) a rough wooden board (c) still clear water (d) a mirror
7. 7.📘 Light bouncing off a mirror is called ___. (a) evaporation (b) reflection (c) refraction (d) magnetism
8. 8.🔍 Which is the odd one out? (a) a shiny steel plate (b) aluminium foil (c) dark soil (d) still clear water
9. 9.🛟 You must never point a periscope or a mirror at ___. (a) the Sun (b) a wall (c) a friend’s toy (d) a tree
10. 10.🧺 Which of these is needed for the periscope? (a) a battery cell (b) vinegar (c) a pencil (d) a balloon
11. 11.🔭 Which of these reflects light well? (a) a rough wooden board (b) a dull brick (c) aluminium foil (d) dark soil
12. 12.🔭 Which of these reflects light poorly? (a) aluminium foil (b) a shiny steel plate (c) a mirror (d) dark soil
13. 13.🧺 Three of these are needed for the periscope. Which one is NOT needed? (a) sticky tape (b) a pencil (c) an empty juice carton (d) vinegar
14. 14.🔮 Predict: you cover the top mirror with paper. What do you see? (a) two pictures (b) only darkness (c) a brighter view (d) a rainbow
15. 15.🔮 Predict: you make the periscope tube twice as tall. You can see over ___. (a) taller walls (b) nothing at all (c) the ground (d) only short walls
16. 16.⚖️ 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 mirrors (b) the same light (c) the angle of the mirrors (d) the same carton
17. 17.🔍 Which is the odd one out? (a) a rough wooden board (b) black cloth (c) a shiny steel plate (d) a dull brick
18. 18.True or false: black cloth reflects light poorly. (a) True (b) False
19. 19.True or false: two small mirrors is not needed for the periscope. (a) True (b) False
20. 20.⚖️ Fair test — does the angle of the mirrors change how clearly you see? True or false: the object we look at is kept the same. (a) False (b) True
21. 21.🧺 Which of these is needed for the periscope? (a) yeast (b) a balloon (c) a battery cell (d) a ruler
22. 22.🧺 Three of these are needed for the periscope. Which one is NOT needed? (a) an empty juice carton (b) a pencil (c) sticky tape (d) a balloon
23. 23.🧺 Do we need two small mirrors for the periscope? (a) needed (b) not needed
24. 24.🔭 Does a shiny steel plate reflect light well or poorly? (a) reflects light well (b) reflects light poorly
25. 25.🔭 Does a rough wooden board reflect light well or poorly? (a) reflects light well (b) reflects light poorly
26. 26.🔭 Does a mirror reflect light well or poorly? (a) reflects light well (b) reflects light poorly
27. 27.🛟 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
28. 28.True or false: a shiny steel plate reflects light poorly. (a) False (b) True
29. 29.🧺 Three of these are needed for the periscope. Which one is NOT needed? (a) a ruler (b) an empty juice carton (c) turmeric powder (d) two small mirrors
30. 30.⚖️ Fair test — does the angle of the mirrors change how clearly you see? True or false: the object we look at is what we measure. (a) True (b) False
31. 31.⚖️ Fair test — does the angle of the mirrors change how clearly you see? What do we do with “the same carton”? (a) we change it (b) we keep it the same (c) we measure it
32. 32.🧺 Which of these is not needed for the periscope? (a) an empty juice carton (b) vinegar (c) a ruler (d) sticky tape
33. 33.🔍 Which is the odd one out? (a) a shiny steel plate (b) a rough wooden board (c) still clear water (d) a mirror
34. 34.🧺 Which of these is needed for the periscope? (a) turmeric powder (b) two small mirrors (c) yeast (d) vinegar
35. 35.🔭 Which of these reflects light poorly? (a) aluminium foil (b) still clear water (c) a shiny steel plate (d) black cloth
36. 36.🔭 At what angle are the mirrors set in a simple periscope? (a) 45 degrees (b) 90 degrees (c) 10 degrees (d) 180 degrees
37. 37.🔭 Why must the two mirrors face each other and be parallel? (a) so it can float (b) so it looks shiny (c) to make it heavy (d) so light reaches the eye
38. 38.🧺 Which of these is not needed for the periscope? (a) a pencil (b) sticky tape (c) an empty juice carton (d) a balloon
39. 39.🔍 Which is the odd one out? (a) black cloth (b) a dull brick (c) dark soil (d) aluminium foil
40. 40.⚖️ Fair test — does the angle of the mirrors change how clearly you see? True or false: how clear the view is is what we measure. (a) False (b) True

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