Periscope STEM Project Worksheet

Science experiments lesson 28: Mirror periscope · Set 85 · 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.🔭 Does a dull brick reflect light well or poorly? (a) reflects light poorly (b) reflects light well
2. 2.True or false: aluminium foil reflects light poorly. (a) False (b) True
3. 3.🔍 Which is the odd one out? (a) still clear water (b) aluminium foil (c) a shiny steel plate (d) a dull brick
4. 4.🔮 Predict: you hold a written word up to a mirror. The letters look ___. (a) much bigger (b) in colour (c) upside down only (d) flipped left to right
5. 5.🔭 Which of these reflects light poorly? (a) aluminium foil (b) dark soil (c) a shiny steel plate (d) still clear water
6. 6.🔭 Which of these reflects light well? (a) black cloth (b) a dull brick (c) a rough wooden board (d) aluminium foil
7. 7.🧺 Three of these are needed for the periscope. Which one is NOT needed? (a) sticky tape (b) a pencil (c) a battery cell (d) a ruler
8. 8.🛟 Which mirrors are safest for a children’s periscope? (a) loose glass panes (b) broken glass bits (c) plastic safety mirrors (d) big wall mirrors
9. 9.🧺 Do we need sticky tape for the periscope? (a) not needed (b) needed
10. 10.⚖️ Fair test — does the angle of the mirrors change how clearly you see? What do we do with “the same mirrors”? (a) we measure it (b) we keep it the same (c) we change it
11. 11.🧺 Do we need a balloon for the periscope? (a) needed (b) not needed
12. 12.🔭 How many mirrors does a simple periscope use?
13. 13.🔭 Which of these reflects light well? (a) a rough wooden board (b) a mirror (c) dark soil (d) a dull brick
14. 14.🧺 Which of these is not needed for the periscope? (a) an empty juice carton (b) a pencil (c) a battery cell (d) a ruler
15. 15.🔭 Does a mirror reflect light well or poorly? (a) reflects light poorly (b) reflects light well
16. 16.⚖️ 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
17. 17.🔮 Predict: you make the periscope tube twice as tall. You can see over ___. (a) only short walls (b) the ground (c) taller walls (d) nothing at all
18. 18.⚖️ Fair test — does the angle of the mirrors change how clearly you see? Which of these is what we measure? (a) the same carton (b) the object we look at (c) the same mirrors (d) how clear the view is
19. 19.True or false: a magnet is not needed for the periscope. (a) False (b) True
20. 20.True or false: a balloon is needed for the periscope. (a) True (b) False
21. 21.🧺 Do we need turmeric powder for the periscope? (a) needed (b) not needed
22. 22.⚖️ 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
23. 23.⚖️ Fair test — does the angle of the mirrors change how clearly you see? True or false: the same mirrors is kept the same. (a) False (b) True
24. 24.🔭 How many times does light bounce off a mirror in a simple periscope?
25. 25.🔍 Which is the odd one out? (a) a dull brick (b) black cloth (c) aluminium foil (d) dark soil
26. 26.⚖️ Fair test — does the angle of the mirrors change how clearly you see? True or false: the same mirrors is what we measure. (a) False (b) True
27. 27.🧺 Which of these is not needed for the periscope? (a) a ruler (b) turmeric powder (c) an empty juice carton (d) a pencil
28. 28.⚖️ Fair test — does the angle of the mirrors change how clearly you see? True or false: the same light is kept the same. (a) True (b) False
29. 29.🔭 Which of these reflects light well? (a) a rough wooden board (b) a shiny steel plate (c) dark soil (d) black cloth
30. 30.True or false: a battery cell is needed for the periscope. (a) True (b) False
31. 31.🛟 Who should cut the holes in the juice carton? (a) nobody needs to (b) a friend who is running (c) the youngest child (d) a grown-up
32. 32.📘 Light bouncing off a mirror is called ___. (a) refraction (b) reflection (c) evaporation (d) magnetism
33. 33.🧺 Which of these is needed for the periscope? (a) a magnet (b) a battery cell (c) yeast (d) a pencil
34. 34.🔍 Which is the odd one out? (a) a mirror (b) aluminium foil (c) a shiny steel plate (d) a rough wooden board
35. 35.True or false: a magnet is needed for the periscope. (a) True (b) False
36. 36.🔭 Does black cloth reflect light well or poorly? (a) reflects light well (b) reflects light poorly
37. 37.🧺 Which of these is needed for the periscope? (a) a magnet (b) turmeric powder (c) a ruler (d) a battery cell
38. 38.🧺 Three of these are needed for the periscope. Which one is NOT needed? (a) a magnet (b) an empty juice carton (c) sticky tape (d) two small mirrors
39. 39.⚖️ Fair test — does the angle of the mirrors change how clearly you see? True or false: the angle of the mirrors is what we measure. (a) False (b) True
40. 40.⚖️ 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

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