Periscope STEM Project Worksheet

Science experiments lesson 28: Mirror periscope · Set 849 · 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.🔮 Predict: you cover the top mirror with paper. What do you see? (a) a brighter view (b) only darkness (c) two pictures (d) a rainbow
2. 2.⚖️ 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 same mirrors (c) how clear the view is (d) the same light
3. 3.🔍 Which is the odd one out? (a) still clear water (b) a shiny steel plate (c) a mirror (d) black cloth
4. 4.📘 Light bouncing off a mirror is called ___. (a) magnetism (b) evaporation (c) reflection (d) refraction
5. 5.⚖️ Fair test — does the angle of the mirrors change how clearly you see? True or false: the angle of the mirrors is what we measure. (a) True (b) False
6. 6.🔍 Which is the odd one out? (a) still clear water (b) a dull brick (c) a shiny steel plate (d) a mirror
7. 7.True or false: aluminium foil reflects light poorly. (a) True (b) False
8. 8.🛟 Which mirrors are safest for a children’s periscope? (a) loose glass panes (b) broken glass bits (c) plastic safety mirrors (d) big wall mirrors
9. 9.🔭 How many mirrors does a simple periscope use?
10. 10.🧺 Three of these are needed for the periscope. Which one is NOT needed? (a) sticky tape (b) an empty juice carton (c) a magnet (d) a pencil
11. 11.🔮 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
12. 12.🔭 What does a periscope let you do? (a) see in the dark (b) see germs (c) see over a wall (d) hear far sounds
13. 13.🔭 Does a dull brick reflect light well or poorly? (a) reflects light poorly (b) reflects light well
14. 14.🔭 Does dark soil reflect light well or poorly? (a) reflects light well (b) reflects light poorly
15. 15.🔭 Does black cloth reflect light well or poorly? (a) reflects light well (b) reflects light poorly
16. 16.🔭 Why must the two mirrors face each other and be parallel? (a) so it can float (b) so it looks shiny (c) so light reaches the eye (d) to make it heavy
17. 17.⚖️ Fair test — does the angle of the mirrors change how clearly you see? True or false: the same mirrors is the one thing we change. (a) False (b) True
18. 18.⚖️ 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) True (b) False
19. 19.🛟 You must never point a periscope or a mirror at ___. (a) the Sun (b) a friend’s toy (c) a wall (d) a tree
20. 20.True or false: sticky tape is needed for the periscope. (a) True (b) False
21. 21.⚖️ 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 angle of the mirrors (c) how clear the view is (d) the same light
22. 22.🔭 How many times does light bounce off a mirror in a simple periscope?
23. 23.🔭 Does a mirror reflect light well or poorly? (a) reflects light poorly (b) reflects light well
24. 24.True or false: a shiny steel plate reflects light poorly. (a) True (b) False
25. 25.🧺 Three of these are needed for the periscope. Which one is NOT needed? (a) a pencil (b) two small mirrors (c) vinegar (d) sticky tape
26. 26.⚖️ 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 measure it (b) we keep it the same (c) we change it
27. 27.🔭 Which of these reflects light well? (a) a dull brick (b) still clear water (c) black cloth (d) a rough wooden board
28. 28.🔭 Does a shiny steel plate reflect light well or poorly? (a) reflects light poorly (b) reflects light well
29. 29.🧺 Which of these is not needed for the periscope? (a) a pencil (b) two small mirrors (c) sticky tape (d) yeast
30. 30.🛟 Who should cut the holes in the juice carton? (a) nobody needs to (b) the youngest child (c) a friend who is running (d) a grown-up
31. 31.🧺 Which of these is not needed for the periscope? (a) sticky tape (b) a magnet (c) a pencil (d) two small mirrors
32. 32.⚖️ 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 measure it (c) we change it
33. 33.⚖️ Fair test — does the angle of the mirrors change how clearly you see? True or false: the same light is what we measure. (a) False (b) True
34. 34.True or false: a mirror reflects light well. (a) True (b) False
35. 35.🧺 Do we need vinegar for the periscope? (a) not needed (b) needed
36. 36.True or false: aluminium foil reflects light well. (a) False (b) True
37. 37.🧺 Three of these are needed for the periscope. Which one is NOT needed? (a) turmeric powder (b) a pencil (c) an empty juice carton (d) sticky tape
38. 38.🔭 At what angle are the mirrors set in a simple periscope? (a) 180 degrees (b) 45 degrees (c) 10 degrees (d) 90 degrees
39. 39.⚖️ 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
40. 40.🔍 Which is the odd one out? (a) still clear water (b) a dull brick (c) black cloth (d) a rough wooden board

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