Periscope STEM Project Worksheet

Science experiments lesson 28: Mirror periscope · Set 727 · 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.🧺 Do we need a magnet for the periscope? (a) needed (b) not needed
2. 2.🧺 Do we need a pencil for the periscope? (a) not needed (b) needed
3. 3.🧺 Which of these is not needed for the periscope? (a) an empty juice carton (b) a pencil (c) turmeric powder (d) sticky tape
4. 4.⚖️ Fair test — does the angle of the mirrors change how clearly you see? What do we do with “the same light”? (a) we measure it (b) we keep it the same (c) we change it
5. 5.🧺 Three of these are needed for the periscope. Which one is NOT needed? (a) two small mirrors (b) a magnet (c) sticky tape (d) a pencil
6. 6.🛟 Which mirrors are safest for a children’s periscope? (a) big wall mirrors (b) loose glass panes (c) plastic safety mirrors (d) broken glass bits
7. 7.🔭 Which of these reflects light well? (a) black cloth (b) a dull brick (c) a mirror (d) a rough wooden board
8. 8.🧺 Do we need sticky tape for the periscope? (a) not needed (b) needed
9. 9.🔍 Which is the odd one out? (a) dark soil (b) a dull brick (c) aluminium foil (d) a rough wooden board
10. 10.🧺 Which of these is not needed for the periscope? (a) sticky tape (b) a pencil (c) a magnet (d) a ruler
11. 11.True or false: a ruler is not needed for the periscope. (a) False (b) True
12. 12.⚖️ Fair test — does the angle of the mirrors change how clearly you see? What do we do with “the same mirrors”? (a) we change it (b) we keep it the same (c) we measure it
13. 13.True or false: a battery cell is not needed for the periscope. (a) True (b) False
14. 14.🧺 Three of these are needed for the periscope. Which one is NOT needed? (a) yeast (b) a pencil (c) a ruler (d) an empty juice carton
15. 15.🔮 Predict: you make the periscope tube twice as tall. You can see over ___. (a) nothing at all (b) the ground (c) only short walls (d) taller walls
16. 16.🔍 Which is the odd one out? (a) a shiny steel plate (b) still clear water (c) dark soil (d) a mirror
17. 17.True or false: sticky tape is needed for the periscope. (a) True (b) False
18. 18.True or false: vinegar is not needed for the periscope. (a) True (b) False
19. 19.🔭 How many mirrors does a simple periscope use?
20. 20.🧺 Do we need a battery cell for the periscope? (a) needed (b) not needed
21. 21.🧺 Three of these are needed for the periscope. Which one is NOT needed? (a) two small mirrors (b) a pencil (c) a ruler (d) a balloon
22. 22.🧺 Which of these is needed for the periscope? (a) yeast (b) a magnet (c) vinegar (d) a ruler
23. 23.🔍 Which is the odd one out? (a) aluminium foil (b) a mirror (c) black cloth (d) a shiny steel plate
24. 24.⚖️ 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
25. 25.True or false: an empty juice carton is not needed for the periscope. (a) True (b) False
26. 26.🔭 What does a periscope let you do? (a) see over a wall (b) hear far sounds (c) see germs (d) see in the dark
27. 27.🔭 Does a mirror reflect light well or poorly? (a) reflects light well (b) reflects light poorly
28. 28.🔮 Predict: you cover the top mirror with paper. What do you see? (a) a rainbow (b) two pictures (c) only darkness (d) a brighter view
29. 29.True or false: a pencil is needed for the periscope. (a) False (b) True
30. 30.🔭 Which of these reflects light well? (a) black cloth (b) a dull brick (c) a shiny steel plate (d) dark soil
31. 31.⚖️ Fair test — does the angle of the mirrors change how clearly you see? True or false: the angle of the mirrors is kept the same. (a) False (b) True
32. 32.⚖️ 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 measure it (b) we keep it the same (c) we change it
33. 33.🔭 Does black cloth reflect light well or poorly? (a) reflects light poorly (b) reflects light well
34. 34.📘 Light bouncing off a mirror is called ___. (a) evaporation (b) refraction (c) reflection (d) magnetism
35. 35.🔭 Which of these reflects light poorly? (a) a mirror (b) still clear water (c) dark soil (d) aluminium foil
36. 36.True or false: two small mirrors is needed for the periscope. (a) False (b) True
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.True or false: a rough wooden board reflects light well. (a) False (b) True
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) the same mirrors (c) the same light (d) the same carton
40. 40.🧺 Do we need two small mirrors for the periscope? (a) needed (b) not needed

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