Periscope STEM Project Worksheet

Science experiments lesson 28: Mirror periscope · Set 19 · 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.🧺 Three of these are needed for the periscope. Which one is NOT needed? (a) a pencil (b) sticky tape (c) an empty juice carton (d) a magnet
2. 2.📘 Light bouncing off a mirror is called ___. (a) magnetism (b) evaporation (c) reflection (d) refraction
3. 3.⚖️ 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 carton
4. 4.🧺 Three of these are needed for the periscope. Which one is NOT needed? (a) two small mirrors (b) a balloon (c) a pencil (d) a ruler
5. 5.🔭 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
6. 6.🧺 Three of these are needed for the periscope. Which one is NOT needed? (a) a pencil (b) vinegar (c) two small mirrors (d) sticky tape
7. 7.🧺 Which of these is not needed for the periscope? (a) a ruler (b) two small mirrors (c) sticky tape (d) a balloon
8. 8.⚖️ Fair test — does the angle of the mirrors change how clearly you see? True or false: the same carton is the one thing we change. (a) True (b) False
9. 9.⚖️ 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
10. 10.🧺 Three of these are needed for the periscope. Which one is NOT needed? (a) turmeric powder (b) two small mirrors (c) sticky tape (d) a pencil
11. 11.⚖️ Fair test — does the angle of the mirrors change how clearly you see? Which of these is what we measure? (a) the same carton (b) how clear the view is (c) the angle of the mirrors (d) the same mirrors
12. 12.🔭 Which of these reflects light well? (a) a shiny steel plate (b) black cloth (c) dark soil (d) a rough wooden board
13. 13.🔭 Does still clear water reflect light well or poorly? (a) reflects light well (b) reflects light poorly
14. 14.🔍 Which is the odd one out? (a) aluminium foil (b) still clear water (c) a mirror (d) a rough wooden board
15. 15.True or false: a mirror reflects light well. (a) True (b) False
16. 16.🔭 Which of these reflects light well? (a) a dull brick (b) a rough wooden board (c) a mirror (d) dark soil
17. 17.🧺 Do we need two small mirrors for the periscope? (a) not needed (b) needed
18. 18.🔭 Why must the two mirrors face each other and be parallel? (a) so it can float (b) so it looks shiny (c) so light reaches the eye (d) to make it heavy
19. 19.🛟 You must never point a periscope or a mirror at ___. (a) a tree (b) a wall (c) the Sun (d) a friend’s toy
20. 20.⚖️ 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
21. 21.🔭 How many times does light bounce off a mirror in a simple periscope?
22. 22.⚖️ 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
23. 23.🔭 Which of these reflects light poorly? (a) a shiny steel plate (b) dark soil (c) aluminium foil (d) a mirror
24. 24.True or false: a shiny steel plate reflects light well. (a) False (b) True
25. 25.🧺 Which of these is needed for the periscope? (a) a pencil (b) a balloon (c) a magnet (d) a battery cell
26. 26.⚖️ Fair test — does the angle of the mirrors change how clearly you see? Which of these is the one thing we change? (a) how clear the view is (b) the same light (c) the same carton (d) the angle of the mirrors
27. 27.🧺 Do we need sticky tape for the periscope? (a) needed (b) not needed
28. 28.🔭 What does a periscope let you do? (a) hear far sounds (b) see germs (c) see over a wall (d) see in the dark
29. 29.🛟 Which mirrors are safest for a children’s periscope? (a) big wall mirrors (b) plastic safety mirrors (c) broken glass bits (d) loose glass panes
30. 30.⚖️ 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
31. 31.True or false: a pencil is needed for the periscope. (a) False (b) True
32. 32.True or false: a rough wooden board reflects light poorly. (a) False (b) True
33. 33.⚖️ 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 measure it (c) we change it
34. 34.🔭 Which of these reflects light well? (a) a dull brick (b) aluminium foil (c) a rough wooden board (d) black cloth
35. 35.🔭 At what angle are the mirrors set in a simple periscope? (a) 180 degrees (b) 10 degrees (c) 90 degrees (d) 45 degrees
36. 36.🧺 Which of these is not needed for the periscope? (a) sticky tape (b) two small mirrors (c) an empty juice carton (d) vinegar
37. 37.🔍 Which is the odd one out? (a) a rough wooden board (b) a mirror (c) dark soil (d) a dull brick
38. 38.🧺 Which of these is needed for the periscope? (a) turmeric powder (b) a ruler (c) a magnet (d) vinegar
39. 39.🧺 Which of these is needed for the periscope? (a) two small mirrors (b) turmeric powder (c) a balloon (d) a magnet
40. 40.🧺 Which of these is needed for the periscope? (a) a balloon (b) yeast (c) an empty juice carton (d) a battery cell

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