Periscope STEM Project Worksheet

Science experiments lesson 28: Mirror periscope · Set 838 · 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.🔭 At what angle are the mirrors set in a simple periscope? (a) 180 degrees (b) 45 degrees (c) 10 degrees (d) 90 degrees
2. 2.🧺 Do we need sticky tape for the periscope? (a) not needed (b) needed
3. 3.🔭 How many mirrors does a simple periscope use?
4. 4.🔮 Predict: you hold a written word up to a mirror. The letters look ___. (a) upside down only (b) in colour (c) much bigger (d) flipped left to right
5. 5.🧺 Do we need yeast for the periscope? (a) not needed (b) needed
6. 6.🔮 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
7. 7.🔭 Does still clear water reflect light well or poorly? (a) reflects light well (b) reflects light poorly
8. 8.True or false: sticky tape is not needed for the periscope. (a) False (b) True
9. 9.🔭 Does a rough wooden board reflect light well or poorly? (a) reflects light poorly (b) reflects light well
10. 10.⚖️ Fair test — does the angle of the mirrors change how clearly you see? What do we do with “the object we look at”? (a) we measure it (b) we keep it the same (c) we change it
11. 11.True or false: a rough wooden board reflects light well. (a) True (b) False
12. 12.True or false: a mirror reflects light well. (a) True (b) False
13. 13.🧺 Three of these are needed for the periscope. Which one is NOT needed? (a) a ruler (b) sticky tape (c) a pencil (d) yeast
14. 14.🔍 Which is the odd one out? (a) black cloth (b) a rough wooden board (c) a dull brick (d) a mirror
15. 15.🧺 Which of these is needed for the periscope? (a) yeast (b) a ruler (c) a balloon (d) turmeric powder
16. 16.⚖️ 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 change it (b) we keep it the same (c) we measure it
17. 17.🔍 Which is the odd one out? (a) aluminium foil (b) dark soil (c) still clear water (d) a mirror
18. 18.🧺 Do we need a ruler for the periscope? (a) needed (b) not needed
19. 19.True or false: a magnet is needed for the periscope. (a) True (b) False
20. 20.⚖️ 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 measure it (b) we keep it the same (c) we change it
21. 21.⚖️ Fair test — does the angle of the mirrors change how clearly you see? What do we do with “the same carton”? (a) we measure it (b) we change it (c) we keep it the same
22. 22.🔭 How many times does light bounce off a mirror in a simple periscope?
23. 23.True or false: a balloon is needed for the periscope. (a) True (b) False
24. 24.🔭 Who uses a periscope to look above the water? (a) a baker (b) a pilot in a plane (c) a farmer (d) a submarine crew
25. 25.⚖️ Fair test — does the angle of the mirrors change how clearly you see? True or false: the object we look at is kept the same. (a) True (b) False
26. 26.⚖️ Fair test — does the angle of the mirrors change how clearly you see? Which of these is kept the same? (a) the same mirrors (b) the angle of the mirrors (c) how clear the view is
27. 27.🔭 Does black cloth reflect light well or poorly? (a) reflects light poorly (b) reflects light well
28. 28.🧺 Do we need an empty juice carton for the periscope? (a) not needed (b) needed
29. 29.🧺 Which of these is not needed for the periscope? (a) a ruler (b) a pencil (c) vinegar (d) sticky tape
30. 30.True or false: a shiny steel plate reflects light poorly. (a) True (b) False
31. 31.🛟 Which mirrors are safest for a children’s periscope? (a) plastic safety mirrors (b) loose glass panes (c) broken glass bits (d) big wall mirrors
32. 32.🧺 Which of these is not needed for the periscope? (a) a balloon (b) an empty juice carton (c) a pencil (d) sticky tape
33. 33.🔭 Which of these reflects light well? (a) dark soil (b) still clear water (c) a rough wooden board (d) black cloth
34. 34.🧺 Three of these are needed for the periscope. Which one is NOT needed? (a) a balloon (b) a pencil (c) a ruler (d) two small mirrors
35. 35.⚖️ 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
36. 36.📘 Light bouncing off a mirror is called ___. (a) refraction (b) reflection (c) evaporation (d) magnetism
37. 37.🧺 Three of these are needed for the periscope. Which one is NOT needed? (a) an empty juice carton (b) a pencil (c) sticky tape (d) a battery cell
38. 38.🔭 What does a periscope let you do? (a) see over a wall (b) see in the dark (c) see germs (d) hear far sounds
39. 39.🧺 Do we need a pencil for the periscope? (a) not needed (b) needed
40. 40.🧺 Which of these is not needed for the periscope? (a) a ruler (b) a pencil (c) yeast (d) an empty juice carton

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