Periscope STEM Project Worksheet

Science experiments lesson 28: Mirror periscope · Set 830 · 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 rough wooden board reflect light well or poorly? (a) reflects light well (b) reflects light poorly
2. 2.True or false: a mirror reflects light poorly. (a) True (b) False
3. 3.🔭 Which of these reflects light well? (a) a dull brick (b) black cloth (c) a shiny steel plate (d) a rough wooden board
4. 4.⚖️ 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 change it (c) we keep it the same
5. 5.🧺 Which of these is not needed for the periscope? (a) sticky tape (b) a magnet (c) two small mirrors (d) an empty juice carton
6. 6.⚖️ 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 measure it (b) we keep it the same (c) we change it
7. 7.True or false: black cloth reflects light well. (a) True (b) False
8. 8.🧺 Do we need an empty juice carton for the periscope? (a) not needed (b) needed
9. 9.🧺 Which of these is not needed for the periscope? (a) an empty juice carton (b) turmeric powder (c) a ruler (d) a pencil
10. 10.True or false: a shiny steel plate reflects light poorly. (a) True (b) False
11. 11.🧺 Do we need a magnet for the periscope? (a) not needed (b) needed
12. 12.⚖️ Fair test — does the angle of the mirrors change how clearly you see? Which of these is what we measure? (a) the object we look at (b) the same carton (c) how clear the view is (d) the same mirrors
13. 13.🛟 You must never point a periscope or a mirror at ___. (a) a tree (b) a wall (c) the Sun (d) a friend’s toy
14. 14.True or false: a shiny steel plate reflects light well. (a) True (b) False
15. 15.🧺 Do we need vinegar for the periscope? (a) needed (b) not needed
16. 16.🧺 Three of these are needed for the periscope. Which one is NOT needed? (a) an empty juice carton (b) a pencil (c) yeast (d) sticky tape
17. 17.⚖️ 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 keep it the same (c) we change it
18. 18.🛟 Who should cut the holes in the juice carton? (a) nobody needs to (b) a grown-up (c) a friend who is running (d) the youngest child
19. 19.True or false: a battery cell is not 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 object we look at”? (a) we change it (b) we measure it (c) we keep it the same
21. 21.⚖️ Fair test — does the angle of the mirrors change how clearly you see? True or false: how clear the view is is the one thing we change. (a) True (b) False
22. 22.🧺 Do we need turmeric powder for the periscope? (a) not needed (b) needed
23. 23.True or false: a balloon is not needed for the periscope. (a) False (b) True
24. 24.🛟 Which mirrors are safest for a children’s periscope? (a) loose glass panes (b) big wall mirrors (c) plastic safety mirrors (d) broken glass bits
25. 25.🔭 What does a periscope let you do? (a) see germs (b) hear far sounds (c) see in the dark (d) see over a wall
26. 26.🔭 Which of these reflects light poorly? (a) a mirror (b) a shiny steel plate (c) black cloth (d) aluminium foil
27. 27.🔭 Does a shiny steel plate reflect light well or poorly? (a) reflects light poorly (b) reflects light well
28. 28.True or false: dark soil reflects light well. (a) False (b) True
29. 29.⚖️ 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
30. 30.🔮 Predict: you hold a written word up to a mirror. The letters look ___. (a) in colour (b) upside down only (c) flipped left to right (d) much bigger
31. 31.True or false: black cloth reflects light poorly. (a) True (b) False
32. 32.⚖️ 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) False (b) True
33. 33.🧺 Do we need a ruler for the periscope? (a) needed (b) not needed
34. 34.True or false: aluminium foil reflects light poorly. (a) True (b) False
35. 35.True or false: turmeric powder is needed for the periscope. (a) False (b) True
36. 36.🔭 Which of these reflects light poorly? (a) still clear water (b) a mirror (c) a dull brick (d) a shiny steel plate
37. 37.🔍 Which is the odd one out? (a) a mirror (b) still clear water (c) black cloth (d) a shiny steel plate
38. 38.🧺 Three of these are needed for the periscope. Which one is NOT needed? (a) two small mirrors (b) sticky tape (c) vinegar (d) a pencil
39. 39.🔮 Predict: you cover the top mirror with paper. What do you see? (a) a rainbow (b) a brighter view (c) only darkness (d) two pictures
40. 40.🧺 Three of these are needed for the periscope. Which one is NOT needed? (a) turmeric powder (b) an empty juice carton (c) two small mirrors (d) sticky tape

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