Periscope STEM Project Worksheet

Science experiments lesson 28: Mirror periscope · Set 292 · 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.True or false: a rough wooden board reflects light poorly. (a) True (b) False
2. 2.🔭 How many mirrors does a simple periscope use?
3. 3.True or false: still clear water reflects light poorly. (a) False (b) True
4. 4.⚖️ Fair test — does the angle of the mirrors change how clearly you see? True or false: the same mirrors is kept the same. (a) True (b) False
5. 5.🔮 Predict: you cover the top mirror with paper. What do you see? (a) a brighter view (b) a rainbow (c) two pictures (d) only darkness
6. 6.⚖️ 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 light
7. 7.⚖️ 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 measure it (c) we change it
8. 8.True or false: an empty juice carton is needed for the periscope. (a) True (b) False
9. 9.🔭 Which of these reflects light poorly? (a) aluminium foil (b) still clear water (c) a mirror (d) a dull brick
10. 10.🧺 Which of these is not needed for the periscope? (a) sticky tape (b) a magnet (c) an empty juice carton (d) two small mirrors
11. 11.🛟 You must never point a periscope or a mirror at ___. (a) a friend’s toy (b) a wall (c) a tree (d) the Sun
12. 12.⚖️ Fair test — does the angle of the mirrors change how clearly you see? True or false: the same light is the one thing we change. (a) False (b) True
13. 13.🔭 Which of these reflects light well? (a) dark soil (b) a shiny steel plate (c) a dull brick (d) a rough wooden board
14. 14.⚖️ 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 object we look at
15. 15.⚖️ 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 measure it (b) we keep it the same (c) we change it
16. 16.🛟 Who should cut the holes in the juice carton? (a) the youngest child (b) a friend who is running (c) a grown-up (d) nobody needs to
17. 17.🔭 Does a shiny steel plate reflect light well or poorly? (a) reflects light well (b) reflects light poorly
18. 18.📘 Light bouncing off a mirror is called ___. (a) refraction (b) magnetism (c) reflection (d) evaporation
19. 19.🧺 Do we need a magnet for the periscope? (a) needed (b) not needed
20. 20.🧺 Do we need a ruler for the periscope? (a) needed (b) not needed
21. 21.🔭 What does a periscope let you do? (a) see germs (b) see over a wall (c) see in the dark (d) hear far sounds
22. 22.🔍 Which is the odd one out? (a) aluminium foil (b) a shiny steel plate (c) black cloth (d) a mirror
23. 23.⚖️ Fair test — does the angle of the mirrors change how clearly you see? True or false: the same light is what we measure. (a) True (b) False
24. 24.True or false: a ruler is needed for the periscope. (a) True (b) False
25. 25.🧺 Do we need sticky tape for the periscope? (a) not needed (b) needed
26. 26.🧺 Do we need two small mirrors for the periscope? (a) not needed (b) needed
27. 27.True or false: a battery cell is needed for the periscope. (a) False (b) True
28. 28.🔭 Which of these reflects light poorly? (a) aluminium foil (b) still clear water (c) a mirror (d) black cloth
29. 29.🧺 Which of these is not needed for the periscope? (a) a pencil (b) sticky tape (c) two small mirrors (d) turmeric powder
30. 30.🧺 Do we need turmeric powder for the periscope? (a) not needed (b) needed
31. 31.🔭 Does dark soil reflect light well or poorly? (a) reflects light poorly (b) reflects light well
32. 32.🔭 Does a dull brick reflect light well or poorly? (a) reflects light well (b) reflects light poorly
33. 33.True or false: a dull brick reflects light poorly. (a) True (b) False
34. 34.🔍 Which is the odd one out? (a) a mirror (b) dark soil (c) a rough wooden board (d) black cloth
35. 35.🧺 Which of these is not needed for the periscope? (a) a pencil (b) a ruler (c) a battery cell (d) two small mirrors
36. 36.🛟 Which mirrors are safest for a children’s periscope? (a) big wall mirrors (b) loose glass panes (c) broken glass bits (d) plastic safety mirrors
37. 37.🔭 Does aluminium foil reflect light well or poorly? (a) reflects light poorly (b) reflects light well
38. 38.🔭 How many times does light bounce off a mirror in a simple periscope?
39. 39.🔭 Which of these reflects light poorly? (a) a shiny steel plate (b) dark soil (c) aluminium foil (d) a mirror
40. 40.⚖️ 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 same mirrors (c) the angle of the mirrors (d) how clear the view is

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