Periscope STEM Project Worksheet

Science experiments lesson 28: Mirror periscope · Set 83 · 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: a pencil is needed for the periscope. (a) True (b) False
2. 2.🧺 Three of these are needed for the periscope. Which one is NOT needed? (a) two small mirrors (b) yeast (c) sticky tape (d) a ruler
3. 3.🔭 Does a rough wooden board reflect light well or poorly? (a) reflects light poorly (b) reflects light well
4. 4.🛟 Which mirrors are safest for a children’s periscope? (a) broken glass bits (b) big wall mirrors (c) plastic safety mirrors (d) loose glass panes
5. 5.🔭 Does aluminium foil reflect light well or poorly? (a) reflects light well (b) reflects light poorly
6. 6.True or false: aluminium foil reflects light poorly. (a) True (b) False
7. 7.⚖️ 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 same carton (c) how clear the view is (d) the angle of the mirrors
8. 8.🧺 Which of these is not needed for the periscope? (a) two small mirrors (b) yeast (c) a pencil (d) an empty juice carton
9. 9.🧺 Which of these is not needed for the periscope? (a) sticky tape (b) an empty juice carton (c) a magnet (d) a ruler
10. 10.🧺 Three of these are needed for the periscope. Which one is NOT needed? (a) a magnet (b) sticky tape (c) an empty juice carton (d) a ruler
11. 11.🔭 What does a periscope let you do? (a) hear far sounds (b) see germs (c) see over a wall (d) see in the dark
12. 12.⚖️ Fair test — does the angle of the mirrors change how clearly you see? True or false: the object we look at is the one thing we change. (a) False (b) True
13. 13.🔭 Which of these reflects light well? (a) dark soil (b) black cloth (c) a dull brick (d) still clear water
14. 14.⚖️ 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 keep it the same (b) we measure it (c) we change it
15. 15.🔭 Does still clear water reflect light well or poorly? (a) reflects light poorly (b) reflects light well
16. 16.🔮 Predict: you hold a written word up to a mirror. The letters look ___. (a) upside down only (b) flipped left to right (c) in colour (d) much bigger
17. 17.🔭 Which of these reflects light well? (a) black cloth (b) dark soil (c) a rough wooden board (d) a mirror
18. 18.🛟 You must never point a periscope or a mirror at ___. (a) a wall (b) the Sun (c) a friend’s toy (d) a tree
19. 19.True or false: black cloth reflects light well. (a) True (b) False
20. 20.🔮 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
21. 21.⚖️ 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
22. 22.🧺 Do we need an empty juice carton for the periscope? (a) not needed (b) needed
23. 23.🔭 Which of these reflects light well? (a) a dull brick (b) black cloth (c) a rough wooden board (d) aluminium foil
24. 24.🔭 How many times does light bounce off a mirror in a simple periscope?
25. 25.🔭 Does a shiny steel plate reflect light well or poorly? (a) reflects light poorly (b) reflects light well
26. 26.True or false: a magnet is needed for the periscope. (a) True (b) False
27. 27.🔮 Predict: you make the periscope tube twice as tall. You can see over ___. (a) the ground (b) taller walls (c) only short walls (d) nothing at all
28. 28.🔭 How many mirrors does a simple periscope use?
29. 29.🧺 Which of these is needed for the periscope? (a) an empty juice carton (b) yeast (c) turmeric powder (d) vinegar
30. 30.🧺 Three of these are needed for the periscope. Which one is NOT needed? (a) an empty juice carton (b) two small mirrors (c) a balloon (d) a ruler
31. 31.🧺 Which of these is needed for the periscope? (a) a balloon (b) a magnet (c) vinegar (d) sticky tape
32. 32.🔭 Does dark soil reflect light well or poorly? (a) reflects light well (b) reflects light poorly
33. 33.🧺 Which of these is needed for the periscope? (a) a balloon (b) a magnet (c) a ruler (d) yeast
34. 34.🔍 Which is the odd one out? (a) a mirror (b) a rough wooden board (c) a shiny steel plate (d) aluminium foil
35. 35.🧺 Do we need a pencil for the periscope? (a) needed (b) not needed
36. 36.⚖️ Fair test — does the angle of the mirrors change how clearly you see? True or false: the same mirrors is what we measure. (a) False (b) True
37. 37.🧺 Do we need a ruler for the periscope? (a) not needed (b) needed
38. 38.True or false: a shiny steel plate reflects light well. (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 kept the same. (a) True (b) False
40. 40.🔭 Does black cloth reflect light well or poorly? (a) reflects light poorly (b) reflects light well

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