Periscope STEM Project Worksheet

Science experiments lesson 28: Mirror periscope · Set 183 · 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.🧺 Do we need a ruler for the periscope? (a) needed (b) not needed
2. 2.🛟 You must never point a periscope or a mirror at ___. (a) a wall (b) the Sun (c) a tree (d) a friend’s toy
3. 3.🔭 At what angle are the mirrors set in a simple periscope? (a) 45 degrees (b) 180 degrees (c) 10 degrees (d) 90 degrees
4. 4.True or false: a rough wooden board reflects light well. (a) False (b) True
5. 5.True or false: black cloth reflects light well. (a) True (b) False
6. 6.🔭 Which of these reflects light well? (a) still clear water (b) black cloth (c) dark soil (d) a dull brick
7. 7.🧺 Which of these is not needed for the periscope? (a) two small mirrors (b) a battery cell (c) sticky tape (d) a pencil
8. 8.🔭 Does dark soil reflect light well or poorly? (a) reflects light well (b) reflects light poorly
9. 9.True or false: vinegar is not needed for the periscope. (a) False (b) True
10. 10.🧺 Which of these is not needed for the periscope? (a) turmeric powder (b) two small mirrors (c) a ruler (d) sticky tape
11. 11.🔍 Which is the odd one out? (a) still clear water (b) black cloth (c) aluminium foil (d) a mirror
12. 12.True or false: two small mirrors is needed for the periscope. (a) False (b) True
13. 13.🔭 How many times does light bounce off a mirror in a simple periscope?
14. 14.True or false: an empty juice carton is needed for the periscope. (a) False (b) True
15. 15.🔭 Does a shiny steel plate reflect light well or poorly? (a) reflects light poorly (b) reflects light well
16. 16.🧺 Do we need a balloon for the periscope? (a) needed (b) not needed
17. 17.🧺 Do we need a pencil for the periscope? (a) needed (b) not needed
18. 18.⚖️ 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
19. 19.🔭 Who uses a periscope to look above the water? (a) a pilot in a plane (b) a submarine crew (c) a farmer (d) a baker
20. 20.🔭 How many mirrors does a simple periscope use?
21. 21.⚖️ Fair test — does the angle of the mirrors change how clearly you see? True or false: the same carton is the one thing we change. (a) True (b) False
22. 22.🛟 Which mirrors are safest for a children’s periscope? (a) big wall mirrors (b) broken glass bits (c) loose glass panes (d) plastic safety mirrors
23. 23.⚖️ Fair test — does the angle of the mirrors change how clearly you see? Which of these is the one thing we change? (a) the angle of the mirrors (b) how clear the view is (c) the object we look at (d) the same light
24. 24.🧺 Which of these is needed for the periscope? (a) a balloon (b) yeast (c) turmeric powder (d) an empty juice carton
25. 25.⚖️ 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
26. 26.True or false: black cloth reflects light poorly. (a) False (b) True
27. 27.🔮 Predict: you hold a written word up to a mirror. The letters look ___. (a) in colour (b) upside down only (c) much bigger (d) flipped left to right
28. 28.⚖️ Fair test — does the angle of the mirrors change how clearly you see? True or false: the same light is the one thing we change. (a) False (b) True
29. 29.🔍 Which is the odd one out? (a) dark soil (b) aluminium foil (c) a mirror (d) a shiny steel plate
30. 30.🔮 Predict: you cover the top mirror with paper. What do you see? (a) a brighter view (b) a rainbow (c) only darkness (d) two pictures
31. 31.🔍 Which is the odd one out? (a) black cloth (b) a dull brick (c) a rough wooden board (d) aluminium foil
32. 32.🧺 Which of these is needed for the periscope? (a) a battery cell (b) a magnet (c) vinegar (d) a ruler
33. 33.True or false: a shiny steel plate reflects light well. (a) False (b) True
34. 34.True or false: a magnet is needed for the periscope. (a) True (b) False
35. 35.🧺 Which of these is not needed for the periscope? (a) a magnet (b) a pencil (c) sticky tape (d) an empty juice carton
36. 36.🧺 Which of these is not needed for the periscope? (a) a balloon (b) a pencil (c) an empty juice carton (d) sticky tape
37. 37.⚖️ 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
38. 38.🔭 Does black cloth reflect light well or poorly? (a) reflects light poorly (b) reflects light well
39. 39.🧺 Do we need vinegar for the periscope? (a) not needed (b) needed
40. 40.🧺 Three of these are needed for the periscope. Which one is NOT needed? (a) a ruler (b) two small mirrors (c) sticky tape (d) a battery cell

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