Periscope STEM Project Worksheet

Science experiments lesson 28: Mirror periscope · Set 798 · 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.⚖️ 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 change it (b) we measure it (c) we keep it the same
2. 2.🔭 Which of these reflects light poorly? (a) dark soil (b) still clear water (c) a mirror (d) a shiny steel plate
3. 3.🔭 Does black cloth reflect light well or poorly? (a) reflects light well (b) reflects light poorly
4. 4.⚖️ 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 same mirrors (c) the same carton (d) how clear the view is
5. 5.⚖️ 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
6. 6.True or false: turmeric powder is needed for the periscope. (a) False (b) True
7. 7.True or false: a battery cell is not needed for the periscope. (a) True (b) False
8. 8.🔍 Which is the odd one out? (a) black cloth (b) aluminium foil (c) a rough wooden board (d) a dull brick
9. 9.🔍 Which is the odd one out? (a) black cloth (b) a shiny steel plate (c) a rough wooden board (d) a dull brick
10. 10.🔮 Predict: you cover the top mirror with paper. What do you see? (a) two pictures (b) only darkness (c) a brighter view (d) a rainbow
11. 11.🔭 At what angle are the mirrors set in a simple periscope? (a) 180 degrees (b) 45 degrees (c) 90 degrees (d) 10 degrees
12. 12.🧺 Do we need yeast for the periscope? (a) needed (b) not needed
13. 13.🔭 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 can float (d) so it looks shiny
14. 14.🔭 Which of these reflects light well? (a) aluminium foil (b) black cloth (c) a dull brick (d) dark soil
15. 15.⚖️ 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
16. 16.🔮 Predict: you hold a written word up to a mirror. The letters look ___. (a) upside down only (b) flipped left to right (c) much bigger (d) in colour
17. 17.🔭 Does a shiny steel plate reflect light well or poorly? (a) reflects light well (b) reflects light poorly
18. 18.🔭 Which of these reflects light well? (a) a dull brick (b) a mirror (c) a rough wooden board (d) dark soil
19. 19.🔍 Which is the odd one out? (a) a rough wooden board (b) dark soil (c) a mirror (d) a dull brick
20. 20.🧺 Three of these are needed for the periscope. Which one is NOT needed? (a) two small mirrors (b) yeast (c) a pencil (d) sticky tape
21. 21.⚖️ 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
22. 22.🧺 Which of these is needed for the periscope? (a) a balloon (b) yeast (c) an empty juice carton (d) vinegar
23. 23.🧺 Which of these is needed for the periscope? (a) a balloon (b) turmeric powder (c) two small mirrors (d) yeast
24. 24.🧺 Three of these are needed for the periscope. Which one is NOT needed? (a) a magnet (b) two small mirrors (c) a pencil (d) sticky tape
25. 25.True or false: a mirror reflects light poorly. (a) True (b) False
26. 26.True or false: turmeric powder is not needed for the periscope. (a) False (b) True
27. 27.🧺 Three of these are needed for the periscope. Which one is NOT needed? (a) a ruler (b) a balloon (c) two small mirrors (d) sticky tape
28. 28.🔭 Does a rough wooden board reflect light well or poorly? (a) reflects light well (b) reflects light poorly
29. 29.⚖️ 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
30. 30.🧺 Do we need a ruler for the periscope? (a) needed (b) not needed
31. 31.🛟 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
32. 32.🧺 Which of these is needed for the periscope? (a) yeast (b) vinegar (c) a pencil (d) a balloon
33. 33.🧺 Three of these are needed for the periscope. Which one is NOT needed? (a) a battery cell (b) a ruler (c) a pencil (d) sticky tape
34. 34.🧺 Which of these is not needed for the periscope? (a) turmeric powder (b) a pencil (c) a ruler (d) an empty juice carton
35. 35.🧺 Do we need turmeric powder for the periscope? (a) needed (b) not needed
36. 36.🔍 Which is the odd one out? (a) aluminium foil (b) still clear water (c) a shiny steel plate (d) black cloth
37. 37.🔭 Does still clear water reflect light well or poorly? (a) reflects light well (b) reflects light poorly
38. 38.🧺 Which of these is not needed for the periscope? (a) two small mirrors (b) a magnet (c) a pencil (d) an empty juice carton
39. 39.⚖️ Fair test — does the angle of the mirrors change how clearly you see? What do we do with “the same mirrors”? (a) we change it (b) we keep it the same (c) we measure it
40. 40.🔭 Who uses a periscope to look above the water? (a) a baker (b) a pilot in a plane (c) a farmer (d) a submarine crew

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