Periscope STEM Project Worksheet

Science experiments lesson 28: Mirror periscope · Set 246 · 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? Which of these is the one thing we change? (a) the object we look at (b) the angle of the mirrors (c) how clear the view is (d) the same mirrors
2. 2.🔮 Predict: you cover the top mirror with paper. What do you see? (a) two pictures (b) a rainbow (c) a brighter view (d) only darkness
3. 3.🧺 Which of these is not needed for the periscope? (a) a pencil (b) an empty juice carton (c) sticky tape (d) a balloon
4. 4.🔍 Which is the odd one out? (a) a rough wooden board (b) a shiny steel plate (c) dark soil (d) a dull brick
5. 5.🔍 Which is the odd one out? (a) black cloth (b) a shiny steel plate (c) a mirror (d) still clear water
6. 6.True or false: two small mirrors is needed for the periscope. (a) True (b) False
7. 7.🔭 Which of these reflects light poorly? (a) still clear water (b) dark soil (c) a mirror (d) a shiny steel plate
8. 8.True or false: black cloth reflects light well. (a) False (b) True
9. 9.🔭 Which of these reflects light well? (a) a dull brick (b) a rough wooden board (c) a shiny steel plate (d) dark soil
10. 10.⚖️ 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
11. 11.🔭 What does a periscope let you do? (a) see germs (b) see over a wall (c) see in the dark (d) hear far sounds
12. 12.🧺 Do we need a battery cell for the periscope? (a) not needed (b) needed
13. 13.🔭 Which of these reflects light poorly? (a) still clear water (b) a dull brick (c) a shiny steel plate (d) a mirror
14. 14.📘 Light bouncing off a mirror is called ___. (a) evaporation (b) magnetism (c) refraction (d) reflection
15. 15.True or false: an empty juice carton is needed for the periscope. (a) True (b) False
16. 16.🧺 Do we need a magnet for the periscope? (a) not needed (b) needed
17. 17.🔭 Does dark soil reflect light well or poorly? (a) reflects light well (b) reflects light poorly
18. 18.🔍 Which is the odd one out? (a) dark soil (b) a dull brick (c) black cloth (d) still clear water
19. 19.🔭 Why must the two mirrors face each other and be parallel? (a) so light reaches the eye (b) so it looks shiny (c) so it can float (d) to make it heavy
20. 20.🔭 Does a mirror reflect light well or poorly? (a) reflects light well (b) reflects light poorly
21. 21.🔮 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
22. 22.⚖️ Fair test — does the angle of the mirrors change how clearly you see? True or false: the same mirrors is the one thing we change. (a) True (b) False
23. 23.⚖️ Fair test — does the angle of the mirrors change how clearly you see? Which of these is kept the same? (a) the object we look at (b) the angle of the mirrors (c) how clear the view is
24. 24.🔭 Which of these reflects light poorly? (a) black cloth (b) a mirror (c) aluminium foil (d) a shiny steel plate
25. 25.🔍 Which is the odd one out? (a) dark soil (b) black cloth (c) a mirror (d) a rough wooden board
26. 26.⚖️ Fair test — does the angle of the mirrors change how clearly you see? Which of these is what we measure? (a) the same mirrors (b) the angle of the mirrors (c) the same carton (d) how clear the view is
27. 27.🔮 Predict: you hold a written word up to a mirror. The letters look ___. (a) upside down only (b) much bigger (c) in colour (d) flipped left to right
28. 28.True or false: still clear water reflects light well. (a) False (b) True
29. 29.🧺 Which of these is needed for the periscope? (a) vinegar (b) turmeric powder (c) two small mirrors (d) a balloon
30. 30.🔭 How many mirrors does a simple periscope use?
31. 31.🛟 You must never point a periscope or a mirror at ___. (a) a wall (b) a tree (c) a friend’s toy (d) the Sun
32. 32.🔭 Which of these reflects light well? (a) dark soil (b) a mirror (c) a dull brick (d) a rough wooden board
33. 33.⚖️ 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) True (b) False
34. 34.🔭 Does a shiny steel plate reflect light well or poorly? (a) reflects light poorly (b) reflects light well
35. 35.🛟 Which mirrors are safest for a children’s periscope? (a) big wall mirrors (b) loose glass panes (c) plastic safety mirrors (d) broken glass bits
36. 36.🧺 Do we need a ruler for the periscope? (a) not needed (b) needed
37. 37.True or false: a balloon is not needed for the periscope. (a) True (b) False
38. 38.⚖️ Fair test — does the angle of the mirrors change how clearly you see? True or false: the angle of the mirrors is the one thing we change. (a) False (b) True
39. 39.⚖️ Fair test — does the angle of the mirrors change how clearly you see? True or false: the same carton is the one thing we change. (a) False (b) True
40. 40.True or false: dark soil reflects light poorly. (a) True (b) False

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