Periscope STEM Project Worksheet

Science experiments lesson 28: Mirror periscope · Set 244 · 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.🔭 Which of these reflects light well? (a) dark soil (b) still clear water (c) a rough wooden board (d) a dull brick
2. 2.⚖️ 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 change it (b) we keep it the same (c) we measure it
3. 3.🔭 Does aluminium foil reflect light well or poorly? (a) reflects light well (b) reflects light poorly
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 keep it the same (b) we measure it (c) we change it
5. 5.🔭 Does a rough wooden board reflect light well or poorly? (a) reflects light poorly (b) reflects light well
6. 6.🧺 Do we need turmeric powder for the periscope? (a) not needed (b) needed
7. 7.🔭 Why must the two mirrors face each other and be parallel? (a) so light reaches the eye (b) so it can float (c) to make it heavy (d) so it looks shiny
8. 8.True or false: an empty juice carton is needed for the periscope. (a) False (b) True
9. 9.🧺 Three of these are needed for the periscope. Which one is NOT needed? (a) turmeric powder (b) a pencil (c) two small mirrors (d) a ruler
10. 10.🧺 Three of these are needed for the periscope. Which one is NOT needed? (a) an empty juice carton (b) vinegar (c) a ruler (d) a pencil
11. 11.True or false: still clear water reflects light well. (a) True (b) False
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 of these reflects light well? (a) a mirror (b) black cloth (c) a dull brick (d) dark soil
14. 14.⚖️ Fair test — does the angle of the mirrors change how clearly you see? True or false: how clear the view is is kept the same. (a) False (b) True
15. 15.⚖️ 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 object we look at
16. 16.🔍 Which is the odd one out? (a) still clear water (b) a dull brick (c) a rough wooden board (d) dark soil
17. 17.🔮 Predict: you cover the top mirror with paper. What do you see? (a) a brighter view (b) only darkness (c) a rainbow (d) two pictures
18. 18.🧺 Three of these are needed for the periscope. Which one is NOT needed? (a) an empty juice carton (b) sticky tape (c) yeast (d) a pencil
19. 19.🧺 Which of these is needed for the periscope? (a) yeast (b) a battery cell (c) a pencil (d) a magnet
20. 20.🧺 Which of these is not needed for the periscope? (a) sticky tape (b) a ruler (c) a balloon (d) an empty juice carton
21. 21.🧺 Three of these are needed for the periscope. Which one is NOT needed? (a) a battery cell (b) two small mirrors (c) a ruler (d) sticky tape
22. 22.🔍 Which is the odd one out? (a) black cloth (b) a rough wooden board (c) aluminium foil (d) a dull brick
23. 23.🛟 You must never point a periscope or a mirror at ___. (a) a wall (b) a friend’s toy (c) the Sun (d) a tree
24. 24.⚖️ 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 measure it (c) we keep it the same
25. 25.🔭 Does a mirror reflect light well or poorly? (a) reflects light well (b) reflects light poorly
26. 26.🔭 Which of these reflects light poorly? (a) still clear water (b) aluminium foil (c) a dull brick (d) a shiny steel plate
27. 27.🔭 Does black cloth reflect light well or poorly? (a) reflects light well (b) reflects light poorly
28. 28.⚖️ 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
29. 29.True or false: a ruler is not needed for the periscope. (a) False (b) True
30. 30.⚖️ 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) the angle of the mirrors (c) how clear the view is (d) the same light
31. 31.📘 Light bouncing off a mirror is called ___. (a) magnetism (b) refraction (c) reflection (d) evaporation
32. 32.True or false: dark soil reflects light poorly. (a) False (b) True
33. 33.🧺 Which of these is not needed for the periscope? (a) turmeric powder (b) a ruler (c) an empty juice carton (d) two small mirrors
34. 34.⚖️ Fair test — does the angle of the mirrors change how clearly you see? True or false: the object we look at is kept the same. (a) True (b) False
35. 35.🔭 How many mirrors does a simple periscope use?
36. 36.🔭 Which of these reflects light well? (a) a rough wooden board (b) black cloth (c) a shiny steel plate (d) dark soil
37. 37.🧺 Which of these is not needed for the periscope? (a) sticky tape (b) a magnet (c) an empty juice carton (d) two small mirrors
38. 38.🧺 Three of these are needed for the periscope. Which one is NOT needed? (a) sticky tape (b) a balloon (c) an empty juice carton (d) a ruler
39. 39.True or false: dark soil reflects light well. (a) False (b) True
40. 40.🔭 Which of these reflects light poorly? (a) a shiny steel plate (b) a mirror (c) still clear water (d) black cloth

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