Periscope STEM Project Worksheet

Science experiments lesson 28: Mirror periscope · Set 455 · 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.🔭 Does a dull brick reflect light well or poorly? (a) reflects light well (b) reflects light poorly
2. 2.⚖️ 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) False (b) True
3. 3.True or false: an empty juice carton is not needed for the periscope. (a) False (b) True
4. 4.🛟 Which mirrors are safest for a children’s periscope? (a) loose glass panes (b) big wall mirrors (c) broken glass bits (d) plastic safety mirrors
5. 5.⚖️ Fair test — does the angle of the mirrors change how clearly you see? What do we do with “the same carton”? (a) we measure it (b) we keep it the same (c) we change it
6. 6.🧺 Which of these is needed for the periscope? (a) yeast (b) a ruler (c) a magnet (d) a balloon
7. 7.🧺 Do we need a battery cell for the periscope? (a) not needed (b) needed
8. 8.⚖️ 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) the same mirrors (c) how clear the view is
9. 9.🔭 Does dark soil reflect light well or poorly? (a) reflects light well (b) reflects light poorly
10. 10.⚖️ Fair test — does the angle of the mirrors change how clearly you see? True or false: how clear the view is is what we measure. (a) False (b) True
11. 11.🔭 How many times does light bounce off a mirror in a simple periscope?
12. 12.⚖️ 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 keep it the same (b) we measure it (c) we change it
13. 13.True or false: a ruler is needed for the periscope. (a) True (b) False
14. 14.⚖️ 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
15. 15.True or false: black cloth reflects light poorly. (a) True (b) False
16. 16.🧺 Which of these is needed for the periscope? (a) a balloon (b) sticky tape (c) turmeric powder (d) a battery cell
17. 17.🧺 Three of these are needed for the periscope. Which one is NOT needed? (a) a pencil (b) sticky tape (c) two small mirrors (d) vinegar
18. 18.🛟 Who should cut the holes in the juice carton? (a) the youngest child (b) a grown-up (c) a friend who is running (d) nobody needs to
19. 19.🧺 Which of these is needed for the periscope? (a) a magnet (b) a pencil (c) a battery cell (d) vinegar
20. 20.📘 Light bouncing off a mirror is called ___. (a) evaporation (b) reflection (c) refraction (d) magnetism
21. 21.🔭 How many mirrors does a simple periscope use?
22. 22.🧺 Three of these are needed for the periscope. Which one is NOT needed? (a) sticky tape (b) turmeric powder (c) two small mirrors (d) an empty juice carton
23. 23.🧺 Three of these are needed for the periscope. Which one is NOT needed? (a) a magnet (b) an empty juice carton (c) two small mirrors (d) sticky tape
24. 24.🧺 Do we need two small mirrors for the periscope? (a) needed (b) not needed
25. 25.🔍 Which is the odd one out? (a) black cloth (b) dark soil (c) a dull brick (d) still clear water
26. 26.🔍 Which is the odd one out? (a) dark soil (b) a rough wooden board (c) aluminium foil (d) a dull brick
27. 27.⚖️ Fair test — does the angle of the mirrors change how clearly you see? True or false: the same mirrors is kept the same. (a) False (b) True
28. 28.True or false: a pencil is not needed for the periscope. (a) True (b) False
29. 29.🔍 Which is the odd one out? (a) still clear water (b) a rough wooden board (c) a shiny steel plate (d) aluminium foil
30. 30.🧺 Three of these are needed for the periscope. Which one is NOT needed? (a) two small mirrors (b) yeast (c) a pencil (d) an empty juice carton
31. 31.🧺 Which of these is not needed for the periscope? (a) two small mirrors (b) an empty juice carton (c) a pencil (d) vinegar
32. 32.True or false: a dull brick reflects light poorly. (a) False (b) True
33. 33.🛟 You must never point a periscope or a mirror at ___. (a) a tree (b) a wall (c) the Sun (d) a friend’s toy
34. 34.⚖️ Fair test — does the angle of the mirrors change how clearly you see? Which of these is what we measure? (a) how clear the view is (b) the angle of the mirrors (c) the object we look at (d) the same carton
35. 35.🧺 Which of these is not needed for the periscope? (a) a pencil (b) two small mirrors (c) an empty juice carton (d) yeast
36. 36.🔮 Predict: you hold a written word up to a mirror. The letters look ___. (a) in colour (b) upside down only (c) flipped left to right (d) much bigger
37. 37.🧺 Three of these are needed for the periscope. Which one is NOT needed? (a) an empty juice carton (b) a ruler (c) a battery cell (d) two small mirrors
38. 38.🔭 Which of these reflects light poorly? (a) a mirror (b) a shiny steel plate (c) aluminium foil (d) a rough wooden board
39. 39.True or false: dark soil reflects light poorly. (a) False (b) True
40. 40.🧺 Do we need a ruler for the periscope? (a) not needed (b) needed

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