Periscope STEM Project Worksheet

Science experiments lesson 28: Mirror periscope · Set 162 · 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.⚖️ 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
2. 2.🧺 Three of these are needed for the periscope. Which one is NOT needed? (a) an empty juice carton (b) sticky tape (c) a magnet (d) two small mirrors
3. 3.🔮 Predict: you cover the top mirror with paper. What do you see? (a) a brighter view (b) a rainbow (c) only darkness (d) two pictures
4. 4.🧺 Three of these are needed for the periscope. Which one is NOT needed? (a) sticky tape (b) a pencil (c) turmeric powder (d) an empty juice carton
5. 5.🔭 How many times does light bounce off a mirror in a simple periscope?
6. 6.🔭 Does a shiny steel plate reflect light well or poorly? (a) reflects light poorly (b) reflects light well
7. 7.🧺 Three of these are needed for the periscope. Which one is NOT needed? (a) two small mirrors (b) sticky tape (c) a battery cell (d) a ruler
8. 8.🔭 Does dark soil reflect light well or poorly? (a) reflects light poorly (b) reflects light well
9. 9.🔭 Does a rough wooden board reflect light well or poorly? (a) reflects light well (b) reflects light poorly
10. 10.🔍 Which is the odd one out? (a) still clear water (b) a mirror (c) black cloth (d) aluminium foil
11. 11.🔍 Which is the odd one out? (a) a dull brick (b) a rough wooden board (c) aluminium foil (d) black cloth
12. 12.🧺 Do we need a pencil for the periscope? (a) not needed (b) needed
13. 13.🧺 Do we need a magnet for the periscope? (a) not needed (b) needed
14. 14.🧺 Which of these is not needed for the periscope? (a) two small mirrors (b) a magnet (c) sticky tape (d) a pencil
15. 15.🔭 At what angle are the mirrors set in a simple periscope? (a) 10 degrees (b) 90 degrees (c) 180 degrees (d) 45 degrees
16. 16.🧺 Do we need a battery cell for the periscope? (a) needed (b) not needed
17. 17.🔮 Predict: you make the periscope tube twice as tall. You can see over ___. (a) only short walls (b) the ground (c) nothing at all (d) taller walls
18. 18.🔭 Who uses a periscope to look above the water? (a) a farmer (b) a baker (c) a submarine crew (d) a pilot in a plane
19. 19.True or false: a shiny steel plate reflects light poorly. (a) True (b) False
20. 20.⚖️ 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
21. 21.🧺 Three of these are needed for the periscope. Which one is NOT needed? (a) a ruler (b) a pencil (c) yeast (d) an empty juice carton
22. 22.🧺 Three of these are needed for the periscope. Which one is NOT needed? (a) an empty juice carton (b) two small mirrors (c) vinegar (d) a pencil
23. 23.⚖️ 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 change it (c) we measure it
24. 24.🔭 How many mirrors does a simple periscope use?
25. 25.🔭 Which of these reflects light well? (a) a mirror (b) a rough wooden board (c) a dull brick (d) black cloth
26. 26.True or false: a pencil is needed for the periscope. (a) False (b) True
27. 27.🔭 Why must the two mirrors face each other and be parallel? (a) so it can float (b) so it looks shiny (c) to make it heavy (d) so light reaches the eye
28. 28.🛟 Which mirrors are safest for a children’s periscope? (a) big wall mirrors (b) plastic safety mirrors (c) loose glass panes (d) broken glass bits
29. 29.🔭 Does still clear water reflect light well or poorly? (a) reflects light well (b) reflects light poorly
30. 30.🧺 Which of these is needed for the periscope? (a) a battery cell (b) turmeric powder (c) a ruler (d) a balloon
31. 31.⚖️ 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 measure it (c) we change it
32. 32.🔮 Predict: you hold a written word up to a mirror. The letters look ___. (a) in colour (b) much bigger (c) upside down only (d) flipped left to right
33. 33.True or false: two small mirrors is not needed for the periscope. (a) False (b) True
34. 34.📘 Light bouncing off a mirror is called ___. (a) magnetism (b) reflection (c) refraction (d) evaporation
35. 35.🔍 Which is the odd one out? (a) a shiny steel plate (b) a dull brick (c) black cloth (d) dark soil
36. 36.⚖️ Fair test — does the angle of the mirrors change how clearly you see? What do we do with “the same light”? (a) we measure it (b) we keep it the same (c) we change it
37. 37.🔭 What does a periscope let you do? (a) see germs (b) hear far sounds (c) see over a wall (d) see in the dark
38. 38.⚖️ 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 same mirrors (c) the same carton (d) the object we look at
39. 39.🧺 Do we need a balloon for the periscope? (a) not needed (b) needed
40. 40.🧺 Do we need two small mirrors for the periscope? (a) not needed (b) needed

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