Periscope STEM Project Worksheet

Science experiments lesson 28: Mirror periscope · Set 311 · 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 same carton”? (a) we change it (b) we measure it (c) we keep it the same
2. 2.⚖️ Fair test — does the angle of the mirrors change how clearly you see? Which of these is kept the same? (a) how clear the view is (b) the angle of the mirrors (c) the same mirrors
3. 3.🧺 Three of these are needed for the periscope. Which one is NOT needed? (a) a magnet (b) two small mirrors (c) an empty juice carton (d) sticky tape
4. 4.🔍 Which is the odd one out? (a) dark soil (b) a rough wooden board (c) black cloth (d) a shiny steel plate
5. 5.🔭 What does a periscope let you do? (a) hear far sounds (b) see in the dark (c) see over a wall (d) see germs
6. 6.🧺 Which of these is needed for the periscope? (a) a balloon (b) a ruler (c) turmeric powder (d) a magnet
7. 7.🧺 Which of these is needed for the periscope? (a) a magnet (b) a battery cell (c) a pencil (d) turmeric powder
8. 8.🧺 Three of these are needed for the periscope. Which one is NOT needed? (a) two small mirrors (b) a balloon (c) an empty juice carton (d) sticky tape
9. 9.🔭 Which of these reflects light poorly? (a) still clear water (b) aluminium foil (c) a shiny steel plate (d) a dull brick
10. 10.⚖️ 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
11. 11.🔭 Which of these reflects light poorly? (a) aluminium foil (b) a rough wooden board (c) a mirror (d) still clear water
12. 12.🔭 Why must the two mirrors face each other and be parallel? (a) so it can float (b) so light reaches the eye (c) to make it heavy (d) so it looks shiny
13. 13.🧺 Which of these is not needed for the periscope? (a) two small mirrors (b) a pencil (c) sticky tape (d) a magnet
14. 14.🔭 Does a shiny steel plate reflect light well or poorly? (a) reflects light well (b) reflects light poorly
15. 15.🔭 Which of these reflects light poorly? (a) still clear water (b) aluminium foil (c) dark soil (d) a mirror
16. 16.🧺 Three of these are needed for the periscope. Which one is NOT needed? (a) an empty juice carton (b) two small mirrors (c) a pencil (d) turmeric powder
17. 17.🧺 Do we need sticky tape for the periscope? (a) needed (b) not needed
18. 18.🧺 Three of these are needed for the periscope. Which one is NOT needed? (a) a pencil (b) yeast (c) sticky tape (d) a ruler
19. 19.🔭 Which of these reflects light poorly? (a) black cloth (b) still clear water (c) a shiny steel plate (d) a mirror
20. 20.True or false: a shiny steel plate reflects light poorly. (a) False (b) True
21. 21.🔭 Which of these reflects light well? (a) dark soil (b) black cloth (c) a dull brick (d) aluminium foil
22. 22.🔮 Predict: you cover the top mirror with paper. What do you see? (a) a brighter view (b) two pictures (c) a rainbow (d) only darkness
23. 23.True or false: a magnet is needed for the periscope. (a) True (b) False
24. 24.🔭 Does dark soil reflect light well or poorly? (a) reflects light poorly (b) reflects light well
25. 25.True or false: an empty juice carton is needed for the periscope. (a) False (b) True
26. 26.⚖️ Fair test — does the angle of the mirrors change how clearly you see? What do we do with “the same mirrors”? (a) we keep it the same (b) we change it (c) we measure it
27. 27.🧺 Which of these is not needed for the periscope? (a) two small mirrors (b) sticky tape (c) a battery cell (d) a ruler
28. 28.True or false: a battery cell is needed for the periscope. (a) True (b) False
29. 29.📘 Light bouncing off a mirror is called ___. (a) reflection (b) magnetism (c) refraction (d) evaporation
30. 30.🛟 Which mirrors are safest for a children’s periscope? (a) broken glass bits (b) loose glass panes (c) big wall mirrors (d) plastic safety mirrors
31. 31.🔮 Predict: you hold a written word up to a mirror. The letters look ___. (a) in colour (b) much bigger (c) flipped left to right (d) upside down only
32. 32.🔍 Which is the odd one out? (a) a shiny steel plate (b) a mirror (c) a dull brick (d) still clear water
33. 33.🔭 Does black cloth reflect light well or poorly? (a) reflects light poorly (b) reflects light well
34. 34.🧺 Do we need an empty juice carton for the periscope? (a) needed (b) not needed
35. 35.🔍 Which is the odd one out? (a) a shiny steel plate (b) still clear water (c) a mirror (d) black cloth
36. 36.True or false: turmeric powder is needed for the periscope. (a) True (b) False
37. 37.🔭 At what angle are the mirrors set in a simple periscope? (a) 90 degrees (b) 180 degrees (c) 10 degrees (d) 45 degrees
38. 38.🧺 Do we need a pencil for the periscope? (a) needed (b) not needed
39. 39.🔭 How many times does light bounce off a mirror in a simple periscope?
40. 40.True or false: a pencil is not needed for the periscope. (a) True (b) False

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