Periscope STEM Project Worksheet

Science experiments lesson 28: Mirror periscope · Set 533 · 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.🧺 Do we need turmeric powder for the periscope? (a) not needed (b) needed
2. 2.🔭 What does a periscope let you do? (a) see in the dark (b) see germs (c) hear far sounds (d) see over a wall
3. 3.🧺 Which of these is needed for the periscope? (a) a balloon (b) a magnet (c) a pencil (d) turmeric powder
4. 4.🔮 Predict: you hold a written word up to a mirror. The letters look ___. (a) in colour (b) upside down only (c) much bigger (d) flipped left to right
5. 5.⚖️ Fair test — does the angle of the mirrors change how clearly you see? True or false: the angle of the mirrors is kept the same. (a) False (b) True
6. 6.🔭 Why must the two mirrors face each other and be parallel? (a) to make it heavy (b) so it can float (c) so it looks shiny (d) so light reaches the eye
7. 7.🧺 Do we need yeast for the periscope? (a) needed (b) not needed
8. 8.🔍 Which is the odd one out? (a) a mirror (b) dark soil (c) aluminium foil (d) a shiny steel plate
9. 9.⚖️ 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 same carton (c) the angle of the mirrors
10. 10.⚖️ Fair test — does the angle of the mirrors change how clearly you see? Which of these is the one thing we change? (a) the angle of the mirrors (b) the object we look at (c) the same mirrors (d) how clear the view is
11. 11.🔭 Does black cloth reflect light well or poorly? (a) reflects light well (b) reflects light poorly
12. 12.🧺 Do we need a ruler for the periscope? (a) not needed (b) needed
13. 13.🔭 Which of these reflects light well? (a) a dull brick (b) dark soil (c) a mirror (d) black cloth
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.🔭 How many times does light bounce off a mirror in a simple periscope?
16. 16.🧺 Do we need a magnet for the periscope? (a) needed (b) not needed
17. 17.⚖️ Fair test — does the angle of the mirrors change how clearly you see? What do we do with “the same mirrors”? (a) we change it (b) we keep it the same (c) we measure it
18. 18.⚖️ 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 change it (b) we measure it (c) we keep it the same
19. 19.⚖️ 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) how clear the view is (c) the same mirrors
20. 20.🧺 Do we need sticky tape for the periscope? (a) not needed (b) needed
21. 21.🧺 Do we need a balloon for the periscope? (a) needed (b) not needed
22. 22.🔭 Does aluminium foil reflect light well or poorly? (a) reflects light well (b) reflects light poorly
23. 23.⚖️ 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
24. 24.🧺 Three of these are needed for the periscope. Which one is NOT needed? (a) two small mirrors (b) a balloon (c) a pencil (d) sticky tape
25. 25.True or false: black cloth reflects light well. (a) False (b) True
26. 26.🔭 Which of these reflects light poorly? (a) aluminium foil (b) dark soil (c) a shiny steel plate (d) a mirror
27. 27.True or false: a balloon is not needed for the periscope. (a) False (b) True
28. 28.🔭 Does a rough wooden board reflect light well or poorly? (a) reflects light poorly (b) reflects light well
29. 29.True or false: a rough wooden board reflects light poorly. (a) False (b) True
30. 30.True or false: a magnet is not needed for the periscope. (a) False (b) True
31. 31.🔍 Which is the odd one out? (a) dark soil (b) black cloth (c) a dull brick (d) a shiny steel plate
32. 32.True or false: a shiny steel plate reflects light well. (a) True (b) False
33. 33.🛟 You must never point a periscope or a mirror at ___. (a) a tree (b) the Sun (c) a wall (d) a friend’s toy
34. 34.🔭 Does a mirror reflect light well or poorly? (a) reflects light well (b) reflects light poorly
35. 35.🧺 Which of these is needed for the periscope? (a) a magnet (b) sticky tape (c) a balloon (d) a battery cell
36. 36.⚖️ Fair test — does the angle of the mirrors change how clearly you see? Which of these is kept the same? (a) the same light (b) the angle of the mirrors (c) how clear the view is
37. 37.🧺 Three of these are needed for the periscope. Which one is NOT needed? (a) a ruler (b) a magnet (c) a pencil (d) two small mirrors
38. 38.⚖️ 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
39. 39.🔮 Predict: you cover the top mirror with paper. What do you see? (a) only darkness (b) a rainbow (c) a brighter view (d) two pictures
40. 40.True or false: dark soil reflects light poorly. (a) False (b) True

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