Periscope STEM Project Worksheet

Science experiments lesson 28: Mirror periscope · Set 158 · 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.🔮 Predict: you make the periscope tube twice as tall. You can see over ___. (a) taller walls (b) only short walls (c) nothing at all (d) the ground
2. 2.🔭 Who uses a periscope to look above the water? (a) a pilot in a plane (b) a farmer (c) a baker (d) a submarine crew
3. 3.True or false: a balloon is needed for the periscope. (a) True (b) False
4. 4.🔭 Which of these reflects light well? (a) aluminium foil (b) black cloth (c) a rough wooden board (d) a dull brick
5. 5.True or false: a battery cell is needed for the periscope. (a) True (b) False
6. 6.🔮 Predict: you cover the top mirror with paper. What do you see? (a) a brighter view (b) a rainbow (c) two pictures (d) only darkness
7. 7.⚖️ 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 change it (c) we measure it
8. 8.⚖️ 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
9. 9.🧺 Which of these is not needed for the periscope? (a) sticky tape (b) two small mirrors (c) vinegar (d) an empty juice carton
10. 10.🧺 Do we need turmeric powder for the periscope? (a) needed (b) not needed
11. 11.🧺 Three of these are needed for the periscope. Which one is NOT needed? (a) a pencil (b) a ruler (c) two small mirrors (d) vinegar
12. 12.⚖️ Fair test — does the angle of the mirrors change how clearly you see? True or false: the same mirrors is kept the same. (a) True (b) False
13. 13.⚖️ Fair test — does the angle of the mirrors change how clearly you see? Which of these is the one thing we change? (a) the same mirrors (b) how clear the view is (c) the angle of the mirrors (d) the same carton
14. 14.⚖️ Fair test — does the angle of the mirrors change how clearly you see? What do we do with “the same light”? (a) we change it (b) we measure it (c) we keep it the same
15. 15.🧺 Do we need a balloon for the periscope? (a) needed (b) not needed
16. 16.⚖️ 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
17. 17.⚖️ Fair test — does the angle of the mirrors change how clearly you see? True or false: the same carton is what we measure. (a) False (b) True
18. 18.🧺 Do we need vinegar for the periscope? (a) needed (b) not needed
19. 19.🔭 Why must the two mirrors face each other and be parallel? (a) so it looks shiny (b) so it can float (c) so light reaches the eye (d) to make it heavy
20. 20.🧺 Three of these are needed for the periscope. Which one is NOT needed? (a) sticky tape (b) an empty juice carton (c) a pencil (d) yeast
21. 21.True or false: two small mirrors is not needed for the periscope. (a) True (b) False
22. 22.🧺 Three of these are needed for the periscope. Which one is NOT needed? (a) two small mirrors (b) a balloon (c) a pencil (d) sticky tape
23. 23.True or false: a dull brick reflects light well. (a) True (b) False
24. 24.True or false: dark soil reflects light poorly. (a) False (b) True
25. 25.⚖️ 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 same carton (d) how clear the view is
26. 26.🧺 Which of these is needed for the periscope? (a) an empty juice carton (b) yeast (c) vinegar (d) a balloon
27. 27.🔭 Does a shiny steel plate reflect light well or poorly? (a) reflects light poorly (b) reflects light well
28. 28.🔭 Does a mirror reflect light well or poorly? (a) reflects light well (b) reflects light poorly
29. 29.🔭 Which of these reflects light well? (a) a dull brick (b) a rough wooden board (c) dark soil (d) still clear water
30. 30.🔭 What does a periscope let you do? (a) hear far sounds (b) see in the dark (c) see over a wall (d) see germs
31. 31.⚖️ Fair test — does the angle of the mirrors change how clearly you see? True or false: the angle of the mirrors is kept the same. (a) False (b) True
32. 32.🧺 Do we need sticky tape for the periscope? (a) not needed (b) needed
33. 33.🧺 Which of these is needed for the periscope? (a) a battery cell (b) sticky tape (c) a magnet (d) turmeric powder
34. 34.🛟 Who should cut the holes in the juice carton? (a) nobody needs to (b) a grown-up (c) the youngest child (d) a friend who is running
35. 35.True or false: a shiny steel plate reflects light poorly. (a) True (b) False
36. 36.True or false: a mirror reflects light poorly. (a) True (b) False
37. 37.🧺 Three of these are needed for the periscope. Which one is NOT needed? (a) an empty juice carton (b) a battery cell (c) a pencil (d) sticky tape
38. 38.🛟 Which mirrors are safest for a children’s periscope? (a) plastic safety mirrors (b) big wall mirrors (c) broken glass bits (d) loose glass panes
39. 39.🧺 Which of these is needed for the periscope? (a) yeast (b) vinegar (c) two small mirrors (d) a balloon
40. 40.🔭 Does black cloth reflect light well or poorly? (a) reflects light poorly (b) reflects light well

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