Periscope STEM Project Worksheet

Science experiments lesson 28: Mirror periscope · Set 187 · 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.🔭 Who uses a periscope to look above the water? (a) a farmer (b) a baker (c) a pilot in a plane (d) a submarine crew
2. 2.⚖️ 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) the same carton (c) the same light (d) the same mirrors
3. 3.🔭 Does a dull brick reflect light well or poorly? (a) reflects light well (b) reflects light poorly
4. 4.🧺 Three of these are needed for the periscope. Which one is NOT needed? (a) an empty juice carton (b) a balloon (c) a pencil (d) a ruler
5. 5.🧺 Which of these is not needed for the periscope? (a) sticky tape (b) a balloon (c) an empty juice carton (d) a pencil
6. 6.🛟 Which mirrors are safest for a children’s periscope? (a) plastic safety mirrors (b) big wall mirrors (c) broken glass bits (d) loose glass panes
7. 7.🔭 How many mirrors does a simple periscope use?
8. 8.🧺 Three of these are needed for the periscope. Which one is NOT needed? (a) sticky tape (b) a ruler (c) two small mirrors (d) yeast
9. 9.🔍 Which is the odd one out? (a) a dull brick (b) a mirror (c) black cloth (d) dark soil
10. 10.🧺 Which of these is needed for the periscope? (a) a balloon (b) a battery cell (c) vinegar (d) an empty juice carton
11. 11.🔮 Predict: you cover the top mirror with paper. What do you see? (a) only darkness (b) two pictures (c) a brighter view (d) a rainbow
12. 12.🔭 Which of these reflects light poorly? (a) aluminium foil (b) a shiny steel plate (c) a rough wooden board (d) a mirror
13. 13.📘 Light bouncing off a mirror is called ___. (a) refraction (b) magnetism (c) reflection (d) evaporation
14. 14.🔍 Which is the odd one out? (a) a shiny steel plate (b) black cloth (c) aluminium foil (d) a mirror
15. 15.⚖️ 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 change it (b) we keep it the same (c) we measure it
16. 16.🔮 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
17. 17.⚖️ 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 change it (c) we measure it
18. 18.🔭 Does still clear water reflect light well or poorly? (a) reflects light poorly (b) reflects light well
19. 19.🔭 Does black cloth reflect light well or poorly? (a) reflects light poorly (b) reflects light well
20. 20.⚖️ Fair test — does the angle of the mirrors change how clearly you see? What do we do with “the angle of the mirrors”? (a) we measure it (b) we keep it the same (c) we change it
21. 21.🔭 Which of these reflects light poorly? (a) still clear water (b) a mirror (c) a shiny steel plate (d) dark soil
22. 22.⚖️ 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) how clear the view is (c) the same mirrors
23. 23.🧺 Three of these are needed for the periscope. Which one is NOT needed? (a) an empty juice carton (b) sticky tape (c) turmeric powder (d) two small mirrors
24. 24.🔭 Which of these reflects light poorly? (a) aluminium foil (b) a dull brick (c) a shiny steel plate (d) still clear water
25. 25.🧺 Do we need vinegar for the periscope? (a) not needed (b) needed
26. 26.🧺 Which of these is not needed for the periscope? (a) a ruler (b) a pencil (c) an empty juice carton (d) a magnet
27. 27.🧺 Which of these is not needed for the periscope? (a) two small mirrors (b) an empty juice carton (c) sticky tape (d) yeast
28. 28.True or false: a shiny steel plate reflects light poorly. (a) True (b) False
29. 29.True or false: a magnet is not needed for the periscope. (a) True (b) False
30. 30.🧺 Do we need a magnet for the periscope? (a) needed (b) not needed
31. 31.🧺 Which of these is needed for the periscope? (a) a balloon (b) two small mirrors (c) a magnet (d) a battery cell
32. 32.True or false: a ruler is not needed for the periscope. (a) False (b) True
33. 33.🔭 How many times does light bounce off a mirror in a simple periscope?
34. 34.🧺 Three of these are needed for the periscope. Which one is NOT needed? (a) two small mirrors (b) a pencil (c) an empty juice carton (d) vinegar
35. 35.🧺 Which of these is needed for the periscope? (a) a ruler (b) turmeric powder (c) a magnet (d) a battery cell
36. 36.🔭 Why must the two mirrors face each other and be parallel? (a) to make it heavy (b) so it can float (c) so it looks shiny (d) so light reaches the eye
37. 37.🔭 Which of these reflects light well? (a) a shiny steel plate (b) black cloth (c) a dull brick (d) dark soil
38. 38.⚖️ Fair test — does the angle of the mirrors change how clearly you see? True or false: the angle of the mirrors is the one thing we change. (a) True (b) False
39. 39.🔭 Does dark soil reflect light well or poorly? (a) reflects light well (b) reflects light poorly
40. 40.⚖️ 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

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