Periscope STEM Project Worksheet

Science experiments lesson 28: Mirror periscope · Set 186 · 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.🧺 Which of these is not needed for the periscope? (a) vinegar (b) a pencil (c) sticky tape (d) an empty juice carton
2. 2.⚖️ Fair test — does the angle of the mirrors change how clearly you see? Which of these is what we measure? (a) the angle of the mirrors (b) the same mirrors (c) the same light (d) how clear the view is
3. 3.🔮 Predict: you hold a written word up to a mirror. The letters look ___. (a) upside down only (b) flipped left to right (c) in colour (d) much bigger
4. 4.True or false: a shiny steel plate reflects light poorly. (a) True (b) False
5. 5.⚖️ 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) True (b) False
6. 6.🧺 Which of these is needed for the periscope? (a) a pencil (b) vinegar (c) a balloon (d) a magnet
7. 7.True or false: a ruler is needed for the periscope. (a) False (b) True
8. 8.🧺 Do we need vinegar for the periscope? (a) needed (b) not needed
9. 9.🔭 At what angle are the mirrors set in a simple periscope? (a) 180 degrees (b) 90 degrees (c) 10 degrees (d) 45 degrees
10. 10.⚖️ Fair test — does the angle of the mirrors change how clearly you see? Which of these is kept the same? (a) the object we look at (b) the angle of the mirrors (c) how clear the view is
11. 11.🧺 Do we need two small mirrors for the periscope? (a) not needed (b) needed
12. 12.🧺 Do we need yeast for the periscope? (a) needed (b) not needed
13. 13.🔭 How many mirrors does a simple periscope use?
14. 14.🔮 Predict: you make the periscope tube twice as tall. You can see over ___. (a) only short walls (b) the ground (c) nothing at all (d) taller walls
15. 15.🧺 Do we need an empty juice carton for the periscope? (a) needed (b) not needed
16. 16.🧺 Three of these are needed for the periscope. Which one is NOT needed? (a) a battery cell (b) two small mirrors (c) a ruler (d) a pencil
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.🔭 How many times does light bounce off a mirror in a simple periscope?
19. 19.🛟 You must never point a periscope or a mirror at ___. (a) a friend’s toy (b) the Sun (c) a tree (d) a wall
20. 20.🔭 Does a shiny steel plate reflect light well or poorly? (a) reflects light well (b) reflects light poorly
21. 21.True or false: still clear water reflects light well. (a) False (b) True
22. 22.🧺 Three of these are needed for the periscope. Which one is NOT needed? (a) sticky tape (b) a ruler (c) an empty juice carton (d) yeast
23. 23.🧺 Which of these is needed for the periscope? (a) vinegar (b) a battery cell (c) a ruler (d) yeast
24. 24.🛟 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
25. 25.⚖️ Fair test — does the angle of the mirrors change how clearly you see? What do we do with “the same light”? (a) we keep it the same (b) we measure it (c) we change it
26. 26.🧺 Which of these is needed for the periscope? (a) vinegar (b) yeast (c) an empty juice carton (d) a balloon
27. 27.True or false: a mirror reflects light well. (a) True (b) False
28. 28.🧺 Three of these are needed for the periscope. Which one is NOT needed? (a) sticky tape (b) a balloon (c) a pencil (d) two small mirrors
29. 29.🔭 Which of these reflects light well? (a) a rough wooden board (b) a mirror (c) dark soil (d) a dull brick
30. 30.⚖️ 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 change it (b) we keep it the same (c) we measure it
31. 31.⚖️ Fair test — does the angle of the mirrors change how clearly you see? True or false: how clear the view is is what we measure. (a) True (b) False
32. 32.🧺 Which of these is not needed for the periscope? (a) an empty juice carton (b) a ruler (c) a magnet (d) sticky tape
33. 33.True or false: aluminium foil reflects light poorly. (a) True (b) False
34. 34.True or false: a mirror reflects light poorly. (a) False (b) True
35. 35.🔍 Which is the odd one out? (a) aluminium foil (b) dark soil (c) still clear water (d) a shiny steel plate
36. 36.⚖️ 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
37. 37.🔭 Which of these reflects light well? (a) a dull brick (b) dark soil (c) black cloth (d) still clear water
38. 38.🔮 Predict: you cover the top mirror with paper. What do you see? (a) a brighter view (b) two pictures (c) a rainbow (d) only darkness
39. 39.True or false: black cloth reflects light well. (a) True (b) False
40. 40.⚖️ 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 keep it the same (c) we measure it

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