Periscope STEM Project Worksheet

Science experiments lesson 28: Mirror periscope · Set 452 · 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 of these is not needed for the periscope? (a) sticky tape (b) an empty juice carton (c) a pencil (d) a magnet
2. 2.🔍 Which is the odd one out? (a) a rough wooden board (b) a mirror (c) aluminium foil (d) a shiny steel plate
3. 3.🔮 Predict: you cover the top mirror with paper. What do you see? (a) two pictures (b) only darkness (c) a rainbow (d) a brighter view
4. 4.🧺 Three of these are needed for the periscope. Which one is NOT needed? (a) sticky tape (b) a ruler (c) turmeric powder (d) an empty juice carton
5. 5.🔮 Predict: you hold a written word up to a mirror. The letters look ___. (a) upside down only (b) much bigger (c) flipped left to right (d) in colour
6. 6.🧺 Do we need sticky tape for the periscope? (a) needed (b) not needed
7. 7.🔭 Which of these reflects light well? (a) black cloth (b) a mirror (c) a dull brick (d) a rough wooden board
8. 8.🧺 Three of these are needed for the periscope. Which one is NOT needed? (a) a magnet (b) a pencil (c) an empty juice carton (d) sticky tape
9. 9.⚖️ Fair test — does the angle of the mirrors change how clearly you see? True or false: the same light is the one thing we change. (a) False (b) True
10. 10.🧺 Which of these is needed for the periscope? (a) a battery cell (b) yeast (c) a balloon (d) an empty juice carton
11. 11.📘 Light bouncing off a mirror is called ___. (a) magnetism (b) reflection (c) refraction (d) evaporation
12. 12.🔭 What does a periscope let you do? (a) see in the dark (b) hear far sounds (c) see germs (d) see over a wall
13. 13.⚖️ Fair test — does the angle of the mirrors change how clearly you see? Which of these is kept the same? (a) the angle of the mirrors (b) the same mirrors (c) how clear the view is
14. 14.⚖️ Fair test — does the angle of the mirrors change how clearly you see? Which of these is what we measure? (a) the same mirrors (b) the same carton (c) the object we look at (d) how clear the view is
15. 15.🔭 Which of these reflects light poorly? (a) a shiny steel plate (b) still clear water (c) black cloth (d) aluminium foil
16. 16.True or false: a mirror reflects light well. (a) True (b) False
17. 17.🔭 How many mirrors does a simple periscope use?
18. 18.🔭 Does aluminium foil reflect light well or poorly? (a) reflects light poorly (b) reflects light well
19. 19.🔭 How many times does light bounce off a mirror in a simple periscope?
20. 20.🧺 Which of these is not needed for the periscope? (a) a ruler (b) a balloon (c) an empty juice carton (d) two small mirrors
21. 21.True or false: a ruler is needed for the periscope. (a) True (b) False
22. 22.🛟 You must never point a periscope or a mirror at ___. (a) the Sun (b) a friend’s toy (c) a wall (d) a tree
23. 23.⚖️ Fair test — does the angle of the mirrors change how clearly you see? What do we do with “the same carton”? (a) we measure it (b) we change it (c) we keep it the same
24. 24.🔭 Which of these reflects light well? (a) dark soil (b) aluminium foil (c) black cloth (d) a dull brick
25. 25.True or false: an empty juice carton is needed for the periscope. (a) True (b) False
26. 26.🧺 Three of these are needed for the periscope. Which one is NOT needed? (a) two small mirrors (b) a balloon (c) sticky tape (d) an empty juice carton
27. 27.🧺 Three of these are needed for the periscope. Which one is NOT needed? (a) a ruler (b) a battery cell (c) an empty juice carton (d) a pencil
28. 28.🔍 Which is the odd one out? (a) aluminium foil (b) still clear water (c) black cloth (d) a mirror
29. 29.🔍 Which is the odd one out? (a) a dull brick (b) a mirror (c) still clear water (d) a shiny steel plate
30. 30.⚖️ 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
31. 31.True or false: still clear water reflects light well. (a) False (b) True
32. 32.🔭 Does a dull brick reflect light well or poorly? (a) reflects light well (b) reflects light poorly
33. 33.True or false: a shiny steel plate reflects light well. (a) False (b) True
34. 34.🔭 Which of these reflects light well? (a) black cloth (b) dark soil (c) a rough wooden board (d) still clear water
35. 35.🧺 Three of these are needed for the periscope. Which one is NOT needed? (a) yeast (b) a ruler (c) two small mirrors (d) an empty juice carton
36. 36.🔭 Which of these reflects light well? (a) a dull brick (b) a shiny steel plate (c) dark soil (d) a rough wooden board
37. 37.⚖️ Fair test — does the angle of the mirrors change how clearly you see? Which of these is kept the same? (a) the angle of the mirrors (b) the same light (c) how clear the view is
38. 38.🔮 Predict: you make the periscope tube twice as tall. You can see over ___. (a) only short walls (b) nothing at all (c) taller walls (d) the ground
39. 39.⚖️ 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) how clear the view is (c) the same carton (d) the same mirrors
40. 40.🔭 Why must the two mirrors face each other and be parallel? (a) so it looks shiny (b) so light reaches the eye (c) to make it heavy (d) so it can float

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