Periscope STEM Project Worksheet

Science experiments lesson 28: Mirror periscope · Set 148 · 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? What do we do with “the same mirrors”? (a) we change it (b) we measure it (c) we keep it the same
2. 2.True or false: a dull brick reflects light poorly. (a) False (b) True
3. 3.⚖️ 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
4. 4.🔍 Which is the odd one out? (a) a rough wooden board (b) a mirror (c) still clear water (d) a shiny steel plate
5. 5.⚖️ 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
6. 6.🧺 Do we need a balloon for the periscope? (a) not needed (b) needed
7. 7.🔭 Does aluminium foil reflect light well or poorly? (a) reflects light poorly (b) reflects light well
8. 8.🔭 Does a rough wooden board reflect light well or poorly? (a) reflects light poorly (b) reflects light well
9. 9.🔮 Predict: you cover the top mirror with paper. What do you see? (a) two pictures (b) only darkness (c) a brighter view (d) a rainbow
10. 10.True or false: a battery cell is needed for the periscope. (a) False (b) True
11. 11.⚖️ Fair test — does the angle of the mirrors change how clearly you see? True or false: the same carton is kept the same. (a) True (b) False
12. 12.🔭 How many mirrors does a simple periscope use?
13. 13.True or false: a pencil is needed for the periscope. (a) True (b) False
14. 14.🔭 Which of these reflects light well? (a) a dull brick (b) a mirror (c) a rough wooden board (d) dark soil
15. 15.🛟 You must never point a periscope or a mirror at ___. (a) a tree (b) a wall (c) the Sun (d) a friend’s toy
16. 16.🔍 Which is the odd one out? (a) a shiny steel plate (b) a mirror (c) still clear water (d) dark soil
17. 17.🧺 Which of these is not needed for the periscope? (a) a ruler (b) two small mirrors (c) sticky tape (d) a magnet
18. 18.True or false: black cloth reflects light well. (a) True (b) False
19. 19.🔭 Why must the two mirrors face each other and be parallel? (a) so it looks shiny (b) so light reaches the eye (c) to make it heavy (d) so it can float
20. 20.🔭 Does a mirror reflect light well or poorly? (a) reflects light poorly (b) reflects light well
21. 21.True or false: sticky tape is not needed for the periscope. (a) True (b) False
22. 22.🔍 Which is the odd one out? (a) dark soil (b) a mirror (c) a rough wooden board (d) black cloth
23. 23.⚖️ 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) True (b) False
24. 24.True or false: still clear water reflects light poorly. (a) True (b) False
25. 25.🧺 Three of these are needed for the periscope. Which one is NOT needed? (a) a battery cell (b) a ruler (c) an empty juice carton (d) two small mirrors
26. 26.📘 Light bouncing off a mirror is called ___. (a) magnetism (b) evaporation (c) refraction (d) reflection
27. 27.🧺 Which of these is needed for the periscope? (a) a balloon (b) yeast (c) sticky tape (d) vinegar
28. 28.True or false: black cloth reflects light poorly. (a) True (b) False
29. 29.⚖️ 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
30. 30.True or false: turmeric powder is needed for the periscope. (a) True (b) False
31. 31.🔭 Does dark soil reflect light well or poorly? (a) reflects light poorly (b) reflects light well
32. 32.🔭 Does black cloth reflect light well or poorly? (a) reflects light well (b) reflects light poorly
33. 33.⚖️ 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
34. 34.🔭 What does a periscope let you do? (a) see germs (b) see in the dark (c) see over a wall (d) hear far sounds
35. 35.🧺 Which of these is needed for the periscope? (a) a balloon (b) turmeric powder (c) a battery cell (d) an empty juice carton
36. 36.⚖️ 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 keep it the same (b) we change it (c) we measure it
37. 37.🔭 Which of these reflects light poorly? (a) aluminium foil (b) a shiny steel plate (c) a dull brick (d) a mirror
38. 38.🔮 Predict: you hold a written word up to a mirror. The letters look ___. (a) much bigger (b) in colour (c) flipped left to right (d) upside down only
39. 39.True or false: a ruler is needed for the periscope. (a) True (b) False
40. 40.🧺 Three of these are needed for the periscope. Which one is NOT needed? (a) a pencil (b) two small mirrors (c) a balloon (d) sticky tape

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