Periscope STEM Project Worksheet

Science experiments lesson 28: Mirror periscope · Set 569 · 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? True or false: the angle of the mirrors is the one thing we change. (a) False (b) True
2. 2.True or false: a battery cell is needed for the periscope. (a) False (b) True
3. 3.🔍 Which is the odd one out? (a) still clear water (b) a mirror (c) a rough wooden board (d) a shiny steel plate
4. 4.🔭 At what angle are the mirrors set in a simple periscope? (a) 180 degrees (b) 10 degrees (c) 90 degrees (d) 45 degrees
5. 5.🛟 You must never point a periscope or a mirror at ___. (a) a tree (b) the Sun (c) a friend’s toy (d) a wall
6. 6.⚖️ 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
7. 7.🔮 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
8. 8.⚖️ Fair test — does the angle of the mirrors change how clearly you see? What do we do with “the same carton”? (a) we change it (b) we measure it (c) we keep it the same
9. 9.🧺 Three of these are needed for the periscope. Which one is NOT needed? (a) yeast (b) sticky tape (c) a ruler (d) an empty juice carton
10. 10.True or false: aluminium foil reflects light well. (a) False (b) True
11. 11.🧺 Which of these is not needed for the periscope? (a) an empty juice carton (b) turmeric powder (c) two small mirrors (d) a pencil
12. 12.🔭 How many times does light bounce off a mirror in a simple periscope?
13. 13.🧺 Which of these is not needed for the periscope? (a) two small mirrors (b) a pencil (c) vinegar (d) sticky tape
14. 14.🛟 Which mirrors are safest for a children’s periscope? (a) loose glass panes (b) broken glass bits (c) big wall mirrors (d) plastic safety mirrors
15. 15.🔭 Does a dull brick reflect light well or poorly? (a) reflects light well (b) reflects light poorly
16. 16.True or false: turmeric powder is needed for the periscope. (a) False (b) True
17. 17.🧺 Which of these is needed for the periscope? (a) two small mirrors (b) vinegar (c) a battery cell (d) turmeric powder
18. 18.🔭 How many mirrors does a simple periscope use?
19. 19.🧺 Three of these are needed for the periscope. Which one is NOT needed? (a) an empty juice carton (b) a pencil (c) a battery cell (d) a ruler
20. 20.🧺 Three of these are needed for the periscope. Which one is NOT needed? (a) sticky tape (b) a pencil (c) vinegar (d) an empty juice carton
21. 21.True or false: a pencil is needed for the periscope. (a) False (b) True
22. 22.⚖️ Fair test — does the angle of the mirrors change how clearly you see? True or false: the same light is what we measure. (a) True (b) False
23. 23.True or false: sticky tape is not needed for the periscope. (a) False (b) True
24. 24.🔭 Why must the two mirrors face each other and be parallel? (a) so light reaches the eye (b) to make it heavy (c) so it can float (d) so it looks shiny
25. 25.🔭 Does a shiny steel plate reflect light well or poorly? (a) reflects light well (b) reflects light poorly
26. 26.⚖️ 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 change it (b) we keep it the same (c) we measure it
27. 27.True or false: sticky tape is needed for the periscope. (a) False (b) True
28. 28.🔭 Which of these reflects light well? (a) a dull brick (b) black cloth (c) a mirror (d) a rough wooden board
29. 29.🧺 Which of these is needed for the periscope? (a) vinegar (b) a balloon (c) a pencil (d) turmeric powder
30. 30.🧺 Do we need a magnet for the periscope? (a) not needed (b) needed
31. 31.True or false: aluminium foil reflects light poorly. (a) False (b) True
32. 32.True or false: two small mirrors is not needed for the periscope. (a) True (b) False
33. 33.🧺 Which of these is not needed for the periscope? (a) a magnet (b) a ruler (c) two small mirrors (d) sticky tape
34. 34.🔭 What does a periscope let you do? (a) see over a wall (b) hear far sounds (c) see germs (d) see in the dark
35. 35.⚖️ 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 light
36. 36.🔮 Predict: you cover the top mirror with paper. What do you see? (a) a brighter view (b) two pictures (c) only darkness (d) a rainbow
37. 37.True or false: a dull brick reflects light well. (a) True (b) False
38. 38.True or false: a magnet is not needed for the periscope. (a) True (b) False
39. 39.🔭 Which of these reflects light well? (a) a shiny steel plate (b) black cloth (c) a rough wooden board (d) a dull brick
40. 40.🔍 Which is the odd one out? (a) aluminium foil (b) a shiny steel plate (c) still clear water (d) black cloth

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