Periscope STEM Project Worksheet

Science experiments lesson 28: Mirror periscope · Set 167 · 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.📘 Light bouncing off a mirror is called ___. (a) evaporation (b) magnetism (c) reflection (d) refraction
2. 2.True or false: a magnet is needed for the periscope. (a) False (b) True
3. 3.⚖️ 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
4. 4.🧺 Three of these are needed for the periscope. Which one is NOT needed? (a) a battery cell (b) an empty juice carton (c) sticky tape (d) a pencil
5. 5.🔭 Which of these reflects light poorly? (a) a dull brick (b) a mirror (c) still clear water (d) a shiny steel plate
6. 6.🔭 How many times does light bounce off a mirror in a simple periscope?
7. 7.🔭 How many mirrors does a simple periscope use?
8. 8.True or false: a pencil is not needed for the periscope. (a) False (b) True
9. 9.⚖️ 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 mirrors
10. 10.🧺 Which of these is not needed for the periscope? (a) an empty juice carton (b) a ruler (c) turmeric powder (d) two small mirrors
11. 11.🛟 Which mirrors are safest for a children’s periscope? (a) broken glass bits (b) big wall mirrors (c) loose glass panes (d) plastic safety mirrors
12. 12.🔭 Why must the two mirrors face each other and be parallel? (a) to make it heavy (b) so light reaches the eye (c) so it looks shiny (d) so it can float
13. 13.🧺 Do we need an empty juice carton for the periscope? (a) not needed (b) needed
14. 14.⚖️ 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
15. 15.🧺 Do we need a magnet for the periscope? (a) needed (b) not needed
16. 16.⚖️ 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
17. 17.🔭 Which of these reflects light well? (a) a dull brick (b) still clear water (c) dark soil (d) black cloth
18. 18.🛟 Who should cut the holes in the juice carton? (a) a friend who is running (b) the youngest child (c) nobody needs to (d) a grown-up
19. 19.🔭 Does a mirror reflect light well or poorly? (a) reflects light well (b) reflects light poorly
20. 20.🧺 Do we need two small mirrors for the periscope? (a) needed (b) not needed
21. 21.🔭 Does a dull brick reflect light well or poorly? (a) reflects light well (b) reflects light poorly
22. 22.🔭 Which of these reflects light well? (a) black cloth (b) a rough wooden board (c) a mirror (d) dark soil
23. 23.⚖️ Fair test — does the angle of the mirrors change how clearly you see? True or false: the same light is kept the same. (a) False (b) True
24. 24.🧺 Which of these is not needed for the periscope? (a) sticky tape (b) an empty juice carton (c) two small mirrors (d) a magnet
25. 25.🧺 Three of these are needed for the periscope. Which one is NOT needed? (a) vinegar (b) sticky tape (c) two small mirrors (d) an empty juice carton
26. 26.🧺 Which of these is not needed for the periscope? (a) two small mirrors (b) yeast (c) an empty juice carton (d) a ruler
27. 27.🔭 At what angle are the mirrors set in a simple periscope? (a) 45 degrees (b) 90 degrees (c) 10 degrees (d) 180 degrees
28. 28.True or false: a battery cell is not needed for the periscope. (a) False (b) True
29. 29.🔭 Does a rough wooden board reflect light well or poorly? (a) reflects light well (b) reflects light poorly
30. 30.🧺 Which of these is needed for the periscope? (a) yeast (b) an empty juice carton (c) turmeric powder (d) a balloon
31. 31.⚖️ 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 change it (c) we keep it the same
32. 32.⚖️ 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 keep it the same (b) we measure it (c) we change it
33. 33.🧺 Which of these is needed for the periscope? (a) a magnet (b) two small mirrors (c) turmeric powder (d) a balloon
34. 34.⚖️ Fair test — does the angle of the mirrors change how clearly you see? Which of these is what we measure? (a) the same light (b) the object we look at (c) how clear the view is (d) the same carton
35. 35.🔍 Which is the odd one out? (a) a shiny steel plate (b) dark soil (c) black cloth (d) a rough wooden board
36. 36.🔮 Predict: you cover the top mirror with paper. What do you see? (a) a rainbow (b) two pictures (c) only darkness (d) a brighter view
37. 37.🧺 Do we need vinegar for the periscope? (a) needed (b) not needed
38. 38.True or false: two small mirrors is needed for the periscope. (a) False (b) True
39. 39.🔍 Which is the odd one out? (a) a rough wooden board (b) a mirror (c) still clear water (d) a shiny steel plate
40. 40.🔍 Which is the odd one out? (a) black cloth (b) a rough wooden board (c) a dull brick (d) aluminium foil

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