Periscope STEM Project Worksheet

Science experiments lesson 28: Mirror periscope · Set 357 · 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.🧺 Three of these are needed for the periscope. Which one is NOT needed? (a) two small mirrors (b) an empty juice carton (c) vinegar (d) a ruler
2. 2.🧺 Do we need yeast for the periscope? (a) needed (b) not needed
3. 3.🔍 Which is the odd one out? (a) a dull brick (b) black cloth (c) aluminium foil (d) a rough wooden board
4. 4.⚖️ 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 change it (c) we keep it the same
5. 5.🔍 Which is the odd one out? (a) still clear water (b) a mirror (c) a rough wooden board (d) a shiny steel plate
6. 6.🔭 How many times does light bounce off a mirror in a simple periscope?
7. 7.🧺 Which of these is not needed for the periscope? (a) a pencil (b) a ruler (c) yeast (d) two small mirrors
8. 8.🔍 Which is the odd one out? (a) still clear water (b) a rough wooden board (c) dark soil (d) a dull brick
9. 9.🧺 Three of these are needed for the periscope. Which one is NOT needed? (a) sticky tape (b) turmeric powder (c) an empty juice carton (d) a ruler
10. 10.🧺 Which of these is needed for the periscope? (a) a balloon (b) turmeric powder (c) vinegar (d) an empty juice carton
11. 11.🔮 Predict: you hold a written word up to a mirror. The letters look ___. (a) flipped left to right (b) in colour (c) upside down only (d) much bigger
12. 12.True or false: a dull brick reflects light well. (a) True (b) False
13. 13.🧺 Do we need sticky tape for the periscope? (a) needed (b) not needed
14. 14.⚖️ 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
15. 15.🧺 Do we need turmeric powder for the periscope? (a) needed (b) not needed
16. 16.🔭 How many mirrors does a simple periscope use?
17. 17.🧺 Do we need a magnet for the periscope? (a) needed (b) not needed
18. 18.🔍 Which is the odd one out? (a) still clear water (b) aluminium foil (c) black cloth (d) a mirror
19. 19.🔭 Does aluminium foil reflect light well or poorly? (a) reflects light well (b) reflects light poorly
20. 20.⚖️ Fair test — does the angle of the mirrors change how clearly you see? What do we do with “the same mirrors”? (a) we keep it the same (b) we measure it (c) we change it
21. 21.🔭 Does dark soil reflect light well or poorly? (a) reflects light well (b) reflects light poorly
22. 22.True or false: vinegar is needed for the periscope. (a) False (b) True
23. 23.🧺 Which of these is not needed for the periscope? (a) sticky tape (b) a balloon (c) a pencil (d) two small mirrors
24. 24.🔮 Predict: you cover the top mirror with paper. What do you see? (a) a brighter view (b) two pictures (c) a rainbow (d) only darkness
25. 25.True or false: aluminium foil reflects light poorly. (a) False (b) True
26. 26.🧺 Which of these is not needed for the periscope? (a) a ruler (b) two small mirrors (c) sticky tape (d) turmeric powder
27. 27.📘 Light bouncing off a mirror is called ___. (a) reflection (b) refraction (c) evaporation (d) magnetism
28. 28.🔭 Which of these reflects light poorly? (a) a shiny steel plate (b) black cloth (c) a mirror (d) still clear water
29. 29.🔭 What does a periscope let you do? (a) see over a wall (b) see germs (c) hear far sounds (d) see in the dark
30. 30.⚖️ Fair test — does the angle of the mirrors change how clearly you see? True or false: the same mirrors is kept the same. (a) False (b) True
31. 31.⚖️ Fair test — does the angle of the mirrors change how clearly you see? Which of these is the one thing we change? (a) the same carton (b) the object we look at (c) the same mirrors (d) the angle of the mirrors
32. 32.⚖️ 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
33. 33.🧺 Do we need a battery cell for the periscope? (a) not needed (b) needed
34. 34.🔭 Which of these reflects light well? (a) still clear water (b) a rough wooden board (c) a dull brick (d) black cloth
35. 35.🧺 Do we need a ruler for the periscope? (a) not needed (b) needed
36. 36.🧺 Do we need a balloon for the periscope? (a) needed (b) not needed
37. 37.🧺 Three of these are needed for the periscope. Which one is NOT needed? (a) an empty juice carton (b) two small mirrors (c) a ruler (d) a balloon
38. 38.⚖️ 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
39. 39.🔭 Which of these reflects light well? (a) aluminium foil (b) a dull brick (c) black cloth (d) a rough wooden board
40. 40.🔭 Which of these reflects light well? (a) a dull brick (b) a mirror (c) black cloth (d) dark soil

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