Periscope STEM Project Worksheet

Science experiments lesson 28: Mirror periscope · Set 217 · 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? What do we do with “the object we look at”? (a) we measure it (b) we change it (c) we keep it the same
2. 2.🔭 What does a periscope let you do? (a) see in the dark (b) see over a wall (c) hear far sounds (d) see germs
3. 3.⚖️ 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 keep it the same (b) we change it (c) we measure it
4. 4.🔍 Which is the odd one out? (a) black cloth (b) a shiny steel plate (c) a rough wooden board (d) dark soil
5. 5.🧺 Three of these are needed for the periscope. Which one is NOT needed? (a) a ruler (b) an empty juice carton (c) a pencil (d) vinegar
6. 6.True or false: sticky tape is not needed for the periscope. (a) True (b) False
7. 7.🧺 Which of these is needed for the periscope? (a) an empty juice carton (b) vinegar (c) a magnet (d) yeast
8. 8.🔭 How many times does light bounce off a mirror in a simple periscope?
9. 9.⚖️ Fair test — does the angle of the mirrors change how clearly you see? What do we do with “the same mirrors”? (a) we measure it (b) we change it (c) we keep it the same
10. 10.🛟 Which mirrors are safest for a children’s periscope? (a) big wall mirrors (b) loose glass panes (c) broken glass bits (d) plastic safety mirrors
11. 11.🔭 Does a shiny steel plate reflect light well or poorly? (a) reflects light well (b) reflects light poorly
12. 12.⚖️ Fair test — does the angle of the mirrors change how clearly you see? True or false: the same carton is what we measure. (a) False (b) True
13. 13.🔮 Predict: you hold a written word up to a mirror. The letters look ___. (a) in colour (b) flipped left to right (c) upside down only (d) much bigger
14. 14.🔍 Which is the odd one out? (a) a mirror (b) black cloth (c) a rough wooden board (d) a dull brick
15. 15.⚖️ Fair test — does the angle of the mirrors change how clearly you see? What do we do with “the same light”? (a) we change it (b) we measure it (c) we keep it the same
16. 16.True or false: a shiny steel plate reflects light well. (a) False (b) True
17. 17.⚖️ Fair test — does the angle of the mirrors change how clearly you see? Which of these is what we measure? (a) how clear the view is (b) the same mirrors (c) the angle of the mirrors (d) the same carton
18. 18.🛟 Who should cut the holes in the juice carton? (a) nobody needs to (b) a grown-up (c) the youngest child (d) a friend who is running
19. 19.True or false: turmeric powder is needed for the periscope. (a) False (b) True
20. 20.🧺 Do we need yeast for the periscope? (a) needed (b) not needed
21. 21.True or false: turmeric powder is not needed for the periscope. (a) True (b) False
22. 22.True or false: sticky tape is needed for the periscope. (a) False (b) True
23. 23.🔭 Does black cloth reflect light well or poorly? (a) reflects light poorly (b) reflects light well
24. 24.🧺 Which of these is needed for the periscope? (a) vinegar (b) yeast (c) a magnet (d) sticky tape
25. 25.True or false: a pencil is needed for the periscope. (a) True (b) False
26. 26.True or false: a ruler is not needed for the periscope. (a) True (b) False
27. 27.🔭 Does a mirror reflect light well or poorly? (a) reflects light well (b) reflects light poorly
28. 28.🔍 Which is the odd one out? (a) aluminium foil (b) a rough wooden board (c) black cloth (d) a dull brick
29. 29.🧺 Do we need two small mirrors for the periscope? (a) needed (b) not needed
30. 30.🔍 Which is the odd one out? (a) dark soil (b) aluminium foil (c) a shiny steel plate (d) a mirror
31. 31.🧺 Three of these are needed for the periscope. Which one is NOT needed? (a) sticky tape (b) a pencil (c) two small mirrors (d) a balloon
32. 32.🔭 Why must the two mirrors face each other and be parallel? (a) so light reaches the eye (b) so it looks shiny (c) to make it heavy (d) so it can float
33. 33.⚖️ 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) True (b) False
34. 34.⚖️ 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 measure it (c) we keep it the same
35. 35.🔭 How many mirrors does a simple periscope use?
36. 36.🧺 Which of these is not needed for the periscope? (a) turmeric powder (b) a ruler (c) two small mirrors (d) an empty juice carton
37. 37.True or false: black cloth reflects light poorly. (a) False (b) True
38. 38.🧺 Which of these is needed for the periscope? (a) a ruler (b) turmeric powder (c) a magnet (d) vinegar
39. 39.🔮 Predict: you cover the top mirror with paper. What do you see? (a) two pictures (b) a brighter view (c) a rainbow (d) only darkness
40. 40.⚖️ 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

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