Periscope STEM Project Worksheet

Science experiments lesson 28: Mirror periscope · Set 130 · 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.True or false: two small mirrors is not needed for the periscope. (a) False (b) True
2. 2.True or false: a shiny steel plate reflects light well. (a) True (b) False
3. 3.⚖️ 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) False (b) True
4. 4.🔭 Who uses a periscope to look above the water? (a) a submarine crew (b) a farmer (c) a pilot in a plane (d) a baker
5. 5.🧺 Do we need two small mirrors for the periscope? (a) needed (b) not needed
6. 6.🔭 Which of these reflects light well? (a) still clear water (b) black cloth (c) a dull brick (d) dark soil
7. 7.True or false: vinegar is not needed for the periscope. (a) False (b) True
8. 8.🔭 Why must the two mirrors face each other and be parallel? (a) to make it heavy (b) so light reaches the eye (c) so it looks shiny (d) so it can float
9. 9.🔭 Which of these reflects light poorly? (a) a shiny steel plate (b) aluminium foil (c) black cloth (d) a mirror
10. 10.True or false: black cloth reflects light poorly. (a) True (b) False
11. 11.🔭 Does a rough wooden board reflect light well or poorly? (a) reflects light poorly (b) reflects light well
12. 12.🔭 At what angle are the mirrors set in a simple periscope? (a) 180 degrees (b) 10 degrees (c) 90 degrees (d) 45 degrees
13. 13.🔍 Which is the odd one out? (a) black cloth (b) dark soil (c) aluminium foil (d) a rough wooden board
14. 14.True or false: sticky tape is needed for the periscope. (a) False (b) True
15. 15.🧺 Three of these are needed for the periscope. Which one is NOT needed? (a) an empty juice carton (b) two small mirrors (c) a magnet (d) a ruler
16. 16.🔍 Which is the odd one out? (a) a rough wooden board (b) a shiny steel plate (c) dark soil (d) a dull brick
17. 17.🧺 Three of these are needed for the periscope. Which one is NOT needed? (a) a pencil (b) sticky tape (c) two small mirrors (d) a balloon
18. 18.🧺 Do we need a ruler for the periscope? (a) needed (b) not needed
19. 19.🔍 Which is the odd one out? (a) aluminium foil (b) still clear water (c) a shiny steel plate (d) a dull brick
20. 20.⚖️ Fair test — does the angle of the mirrors change how clearly you see? Which of these is what we measure? (a) the same light (b) the same mirrors (c) the angle of the mirrors (d) how clear the view is
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) how clear the view is (c) the same carton (d) the angle of the mirrors
22. 22.True or false: a balloon is needed for the periscope. (a) True (b) False
23. 23.⚖️ 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
24. 24.🔭 Does a dull brick reflect light well or poorly? (a) reflects light poorly (b) reflects light well
25. 25.🛟 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
26. 26.🧺 Which of these is needed for the periscope? (a) sticky tape (b) a battery cell (c) a balloon (d) turmeric powder
27. 27.🔭 Which of these reflects light poorly? (a) still clear water (b) a mirror (c) dark soil (d) a shiny steel plate
28. 28.🔭 Which of these reflects light poorly? (a) a shiny steel plate (b) still clear water (c) aluminium foil (d) a rough wooden board
29. 29.🧺 Which of these is needed for the periscope? (a) a battery cell (b) yeast (c) a magnet (d) a pencil
30. 30.True or false: dark soil reflects light poorly. (a) False (b) True
31. 31.True or false: a mirror reflects light poorly. (a) True (b) False
32. 32.True or false: an empty juice carton is not needed for the periscope. (a) True (b) False
33. 33.🔭 Which of these reflects light well? (a) a shiny steel plate (b) a rough wooden board (c) dark soil (d) a dull brick
34. 34.🔭 Does still clear water reflect light well or poorly? (a) reflects light poorly (b) reflects light well
35. 35.True or false: still clear water reflects light poorly. (a) False (b) True
36. 36.🔭 Does a shiny steel plate reflect light well or poorly? (a) reflects light poorly (b) reflects light well
37. 37.⚖️ 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
38. 38.🔮 Predict: you cover the top mirror with paper. What do you see? (a) a brighter view (b) two pictures (c) only darkness (d) a rainbow
39. 39.🔍 Which is the odd one out? (a) a mirror (b) a rough wooden board (c) dark soil (d) black cloth
40. 40.🧺 Do we need turmeric powder for the periscope? (a) not needed (b) needed

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