Periscope STEM Project Worksheet

Science experiments lesson 28: Mirror periscope · Set 966 · 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.🧺 Which of these is needed for the periscope? (a) turmeric powder (b) a battery cell (c) an empty juice carton (d) vinegar
2. 2.⚖️ 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
3. 3.⚖️ 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
4. 4.🧺 Which of these is not needed for the periscope? (a) an empty juice carton (b) two small mirrors (c) a pencil (d) vinegar
5. 5.🔭 At what angle are the mirrors set in a simple periscope? (a) 45 degrees (b) 90 degrees (c) 10 degrees (d) 180 degrees
6. 6.🛟 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
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 light (c) the object we look at (d) how clear the view is
8. 8.🧺 Which of these is not needed for the periscope? (a) a ruler (b) an empty juice carton (c) two small mirrors (d) turmeric powder
9. 9.🔭 How many times does light bounce off a mirror in a simple periscope?
10. 10.True or false: two small mirrors is not needed for the periscope. (a) True (b) False
11. 11.⚖️ 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 mirrors (b) the same light (c) the angle of the mirrors (d) how clear the view is
12. 12.🧺 Three of these are needed for the periscope. Which one is NOT needed? (a) a pencil (b) a balloon (c) two small mirrors (d) an empty juice carton
13. 13.🔍 Which is the odd one out? (a) black cloth (b) a shiny steel plate (c) a rough wooden board (d) dark soil
14. 14.🔭 Does a mirror reflect light well or poorly? (a) reflects light well (b) reflects light poorly
15. 15.🔭 Does a shiny steel plate reflect light well or poorly? (a) reflects light well (b) reflects light poorly
16. 16.🛟 You must never point a periscope or a mirror at ___. (a) the Sun (b) a tree (c) a friend’s toy (d) a wall
17. 17.🔍 Which is the odd one out? (a) dark soil (b) a dull brick (c) aluminium foil (d) black cloth
18. 18.⚖️ 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
19. 19.🔭 Which of these reflects light well? (a) dark soil (b) a shiny steel plate (c) black cloth (d) a dull brick
20. 20.🧺 Three of these are needed for the periscope. Which one is NOT needed? (a) an empty juice carton (b) two small mirrors (c) turmeric powder (d) sticky tape
21. 21.🧺 Three of these are needed for the periscope. Which one is NOT needed? (a) yeast (b) a pencil (c) two small mirrors (d) sticky tape
22. 22.🔍 Which is the odd one out? (a) aluminium foil (b) a mirror (c) a shiny steel plate (d) a rough wooden board
23. 23.🔮 Predict: you cover the top mirror with paper. What do you see? (a) two pictures (b) only darkness (c) a rainbow (d) a brighter view
24. 24.🔭 Why must the two mirrors face each other and be parallel? (a) so it looks shiny (b) to make it heavy (c) so light reaches the eye (d) so it can float
25. 25.⚖️ Fair test — does the angle of the mirrors change how clearly you see? True or false: the same carton is what we measure. (a) False (b) True
26. 26.🧺 Do we need a balloon for the periscope? (a) needed (b) not needed
27. 27.True or false: a ruler is needed for the periscope. (a) True (b) False
28. 28.True or false: a ruler is not needed for the periscope. (a) True (b) False
29. 29.🧺 Three of these are needed for the periscope. Which one is NOT needed? (a) two small mirrors (b) a ruler (c) a battery cell (d) an empty juice carton
30. 30.🔍 Which is the odd one out? (a) black cloth (b) a mirror (c) a dull brick (d) a rough wooden board
31. 31.🧺 Which of these is needed for the periscope? (a) yeast (b) sticky tape (c) a battery cell (d) a balloon
32. 32.🔭 How many mirrors does a simple periscope use?
33. 33.🧺 Which of these is needed for the periscope? (a) two small mirrors (b) a magnet (c) vinegar (d) a balloon
34. 34.True or false: a pencil is not needed for the periscope. (a) False (b) True
35. 35.🔮 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
36. 36.True or false: dark soil reflects light well. (a) False (b) True
37. 37.🔭 Which of these reflects light poorly? (a) a shiny steel plate (b) aluminium foil (c) dark soil (d) still clear water
38. 38.⚖️ 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 change it (c) we measure it
39. 39.🧺 Do we need turmeric powder for the periscope? (a) needed (b) not needed
40. 40.🔭 Does a dull brick reflect light well or poorly? (a) reflects light well (b) reflects light poorly

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