Periscope STEM Project Worksheet

Science experiments lesson 28: Mirror periscope · Set 163 · 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) two small mirrors (b) a magnet (c) sticky tape (d) an empty juice carton
2. 2.⚖️ Fair test — does the angle of the mirrors change how clearly you see? True or false: the same carton is kept the same. (a) False (b) True
3. 3.True or false: yeast is needed for the periscope. (a) False (b) True
4. 4.⚖️ 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
5. 5.🧺 Which of these is not needed for the periscope? (a) a ruler (b) a pencil (c) vinegar (d) an empty juice carton
6. 6.⚖️ 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
7. 7.🔍 Which is the odd one out? (a) black cloth (b) a mirror (c) a dull brick (d) a rough wooden board
8. 8.🔍 Which is the odd one out? (a) still clear water (b) dark soil (c) aluminium foil (d) a mirror
9. 9.🔍 Which is the odd one out? (a) a mirror (b) a rough wooden board (c) a shiny steel plate (d) aluminium foil
10. 10.True or false: vinegar is not needed for the periscope. (a) False (b) True
11. 11.🔭 At what angle are the mirrors set in a simple periscope? (a) 10 degrees (b) 180 degrees (c) 45 degrees (d) 90 degrees
12. 12.True or false: a dull brick reflects light poorly. (a) False (b) True
13. 13.True or false: two small mirrors is needed for the periscope. (a) False (b) True
14. 14.🔮 Predict: you cover the top mirror with paper. What do you see? (a) a rainbow (b) a brighter view (c) two pictures (d) only darkness
15. 15.True or false: a ruler is not needed for the periscope. (a) True (b) False
16. 16.True or false: a shiny steel plate reflects light poorly. (a) False (b) True
17. 17.🔍 Which is the odd one out? (a) still clear water (b) aluminium foil (c) a mirror (d) black cloth
18. 18.🔭 Why must the two mirrors face each other and be parallel? (a) to make it heavy (b) so it looks shiny (c) so it can float (d) so light reaches the eye
19. 19.⚖️ 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
20. 20.⚖️ Fair test — does the angle of the mirrors change how clearly you see? Which of these is what we measure? (a) the object we look at (b) the angle of the mirrors (c) how clear the view is (d) the same light
21. 21.True or false: a dull brick reflects light well. (a) True (b) False
22. 22.🔭 Does dark soil reflect light well or poorly? (a) reflects light well (b) reflects light poorly
23. 23.🔭 Does black cloth reflect light well or poorly? (a) reflects light well (b) reflects light poorly
24. 24.🔭 Does a shiny steel plate reflect light well or poorly? (a) reflects light well (b) reflects light poorly
25. 25.🧺 Which of these is needed for the periscope? (a) a balloon (b) yeast (c) a magnet (d) an empty juice carton
26. 26.True or false: dark soil reflects light well. (a) False (b) True
27. 27.⚖️ Fair test — does the angle of the mirrors change how clearly you see? True or false: the object we look at is what we measure. (a) False (b) True
28. 28.⚖️ 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 keep it the same (c) we measure it
29. 29.🧺 Do we need a balloon for the periscope? (a) not needed (b) needed
30. 30.🔭 Which of these reflects light poorly? (a) a rough wooden board (b) aluminium foil (c) a mirror (d) a shiny steel plate
31. 31.🧺 Which of these is needed for the periscope? (a) turmeric powder (b) sticky tape (c) a balloon (d) a battery cell
32. 32.True or false: a pencil is not needed for the periscope. (a) True (b) False
33. 33.🧺 Three of these are needed for the periscope. Which one is NOT needed? (a) sticky tape (b) two small mirrors (c) a balloon (d) a pencil
34. 34.🛟 You must never point a periscope or a mirror at ___. (a) a wall (b) a friend’s toy (c) the Sun (d) a tree
35. 35.⚖️ 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
36. 36.True or false: yeast is not needed for the periscope. (a) True (b) False
37. 37.🔭 What does a periscope let you do? (a) see over a wall (b) see in the dark (c) see germs (d) hear far sounds
38. 38.🔍 Which is the odd one out? (a) black cloth (b) dark soil (c) a shiny steel plate (d) a dull brick
39. 39.🔭 How many times does light bounce off a mirror in a simple periscope?
40. 40.🧺 Do we need a ruler for the periscope? (a) needed (b) not needed

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