Periscope STEM Project Worksheet

Science experiments lesson 28: Mirror periscope · Set 396 · 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.True or false: an empty juice carton is needed for the periscope. (a) False (b) True
2. 2.⚖️ 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
3. 3.🔭 Does dark soil reflect light well or poorly? (a) reflects light well (b) reflects light poorly
4. 4.🔮 Predict: you make the periscope tube twice as tall. You can see over ___. (a) nothing at all (b) only short walls (c) taller walls (d) the ground
5. 5.🧺 Three of these are needed for the periscope. Which one is NOT needed? (a) sticky tape (b) two small mirrors (c) a ruler (d) a magnet
6. 6.🧺 Do we need a ruler for the periscope? (a) not needed (b) needed
7. 7.🔮 Predict: you cover the top mirror with paper. What do you see? (a) two pictures (b) a brighter view (c) a rainbow (d) only darkness
8. 8.🧺 Which of these is not needed for the periscope? (a) sticky tape (b) a ruler (c) a battery cell (d) a pencil
9. 9.🔭 How many mirrors does a simple periscope use?
10. 10.True or false: a pencil is needed for the periscope. (a) False (b) True
11. 11.📘 Light bouncing off a mirror is called ___. (a) refraction (b) reflection (c) magnetism (d) evaporation
12. 12.🧺 Three of these are needed for the periscope. Which one is NOT needed? (a) sticky tape (b) an empty juice carton (c) a battery cell (d) two small mirrors
13. 13.🔭 Does black cloth reflect light well or poorly? (a) reflects light well (b) reflects light poorly
14. 14.🧺 Which of these is not needed for the periscope? (a) a ruler (b) two small mirrors (c) an empty juice carton (d) a magnet
15. 15.🔍 Which is the odd one out? (a) black cloth (b) a mirror (c) still clear water (d) aluminium foil
16. 16.🧺 Which of these is not needed for the periscope? (a) yeast (b) a pencil (c) a ruler (d) an empty juice carton
17. 17.🔭 How many times does light bounce off a mirror in a simple periscope?
18. 18.True or false: a mirror reflects light well. (a) True (b) False
19. 19.🧺 Do we need two small mirrors for the periscope? (a) not needed (b) needed
20. 20.🔭 Which of these reflects light well? (a) a dull brick (b) black cloth (c) still clear water (d) a rough wooden board
21. 21.⚖️ 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
22. 22.⚖️ 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
23. 23.🧺 Which of these is needed for the periscope? (a) turmeric powder (b) yeast (c) a pencil (d) a balloon
24. 24.🧺 Do we need an empty juice carton for the periscope? (a) not needed (b) needed
25. 25.🧺 Do we need yeast for the periscope? (a) not needed (b) needed
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 carton (b) the same light (c) the object we look at (d) how clear the view is
27. 27.True or false: aluminium foil reflects light well. (a) False (b) True
28. 28.🧺 Three of these are needed for the periscope. Which one is NOT needed? (a) a pencil (b) yeast (c) an empty juice carton (d) two small mirrors
29. 29.🔭 Does a mirror reflect light well or poorly? (a) reflects light poorly (b) reflects light well
30. 30.🛟 Who should cut the holes in the juice carton? (a) nobody needs to (b) the youngest child (c) a grown-up (d) a friend who is running
31. 31.🧺 Three of these are needed for the periscope. Which one is NOT needed? (a) a ruler (b) an empty juice carton (c) vinegar (d) two small mirrors
32. 32.🛟 Which mirrors are safest for a children’s periscope? (a) plastic safety mirrors (b) big wall mirrors (c) loose glass panes (d) broken glass bits
33. 33.🔮 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
34. 34.🧺 Which of these is needed for the periscope? (a) a ruler (b) a battery cell (c) turmeric powder (d) a balloon
35. 35.⚖️ 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
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.🔭 Which of these reflects light well? (a) a dull brick (b) dark soil (c) a rough wooden board (d) a shiny steel plate
38. 38.True or false: a shiny steel plate reflects light well. (a) False (b) True
39. 39.🔭 Which of these reflects light poorly? (a) aluminium foil (b) a shiny steel plate (c) black cloth (d) still clear water
40. 40.🧺 Do we need a magnet for the periscope? (a) needed (b) not needed

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