Periscope STEM Project Worksheet

Science experiments lesson 28: Mirror periscope · Set 190 · 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 pencil is not needed for the periscope. (a) True (b) False
2. 2.🧺 Which of these is needed for the periscope? (a) a magnet (b) sticky tape (c) yeast (d) vinegar
3. 3.🧺 Which of these is needed for the periscope? (a) a magnet (b) a balloon (c) a ruler (d) vinegar
4. 4.🧺 Three of these are needed for the periscope. Which one is NOT needed? (a) a pencil (b) sticky tape (c) a balloon (d) a ruler
5. 5.🔭 Which of these reflects light well? (a) a rough wooden board (b) black cloth (c) still clear water (d) dark soil
6. 6.🔍 Which is the odd one out? (a) dark soil (b) a dull brick (c) black cloth (d) a shiny steel plate
7. 7.🧺 Do we need two small mirrors for the periscope? (a) not needed (b) needed
8. 8.🧺 Three of these are needed for the periscope. Which one is NOT needed? (a) turmeric powder (b) two small mirrors (c) a pencil (d) a ruler
9. 9.🔭 How many times does light bounce off a mirror in a simple periscope?
10. 10.🧺 Which of these is needed for the periscope? (a) vinegar (b) turmeric powder (c) a pencil (d) a balloon
11. 11.🔭 How many mirrors does a simple periscope use?
12. 12.🔍 Which is the odd one out? (a) still clear water (b) aluminium foil (c) a shiny steel plate (d) dark soil
13. 13.⚖️ 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 change it (b) we keep it the same (c) we measure it
14. 14.🧺 Do we need a pencil for the periscope? (a) needed (b) not needed
15. 15.True or false: a mirror reflects light poorly. (a) True (b) False
16. 16.📘 Light bouncing off a mirror is called ___. (a) evaporation (b) refraction (c) magnetism (d) reflection
17. 17.True or false: a ruler is not needed for the periscope. (a) True (b) False
18. 18.🔭 Does a rough wooden board reflect light well or poorly? (a) reflects light poorly (b) reflects light well
19. 19.🧺 Which of these is not needed for the periscope? (a) an empty juice carton (b) a battery cell (c) a ruler (d) two small mirrors
20. 20.🧺 Three of these are needed for the periscope. Which one is NOT needed? (a) an empty juice carton (b) sticky tape (c) a pencil (d) vinegar
21. 21.🧺 Do we need a ruler for the periscope? (a) needed (b) not needed
22. 22.⚖️ 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
23. 23.True or false: yeast is not needed for the periscope. (a) True (b) False
24. 24.🧺 Which of these is not needed for the periscope? (a) an empty juice carton (b) two small mirrors (c) a balloon (d) a pencil
25. 25.⚖️ 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) how clear the view is (c) the same mirrors (d) the same light
26. 26.True or false: a magnet is needed for the periscope. (a) False (b) True
27. 27.True or false: a shiny steel plate reflects light poorly. (a) True (b) False
28. 28.🔭 Why must the two mirrors face each other and be parallel? (a) so it can float (b) to make it heavy (c) so it looks shiny (d) so light reaches the eye
29. 29.⚖️ 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
30. 30.🔍 Which is the odd one out? (a) a shiny steel plate (b) aluminium foil (c) a rough wooden board (d) still clear water
31. 31.True or false: still clear water reflects light well. (a) False (b) True
32. 32.🔭 Which of these reflects light well? (a) a mirror (b) a rough wooden board (c) a dull brick (d) black cloth
33. 33.🛟 You must never point a periscope or a mirror at ___. (a) a friend’s toy (b) a tree (c) the Sun (d) a wall
34. 34.🛟 Who should cut the holes in the juice carton? (a) nobody needs to (b) a grown-up (c) the youngest child (d) a friend who is running
35. 35.🔭 Does a shiny steel plate reflect light well or poorly? (a) reflects light poorly (b) reflects light well
36. 36.🧺 Three of these are needed for the periscope. Which one is NOT needed? (a) sticky tape (b) two small mirrors (c) a ruler (d) yeast
37. 37.🧺 Do we need vinegar for the periscope? (a) needed (b) not needed
38. 38.🔍 Which is the odd one out? (a) a dull brick (b) a rough wooden board (c) black cloth (d) aluminium foil
39. 39.True or false: vinegar is not needed for the periscope. (a) False (b) True
40. 40.⚖️ Fair test — does the angle of the mirrors change how clearly you see? What do we do with “the same mirrors”? (a) we measure it (b) we change it (c) we keep it the same

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