Periscope STEM Project Worksheet

Science experiments lesson 28: Mirror periscope · Set 765 · 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.🔭 Which of these reflects light poorly? (a) a rough wooden board (b) still clear water (c) a shiny steel plate (d) a mirror
3. 3.🧺 Which of these is needed for the periscope? (a) an empty juice carton (b) vinegar (c) a balloon (d) a battery cell
4. 4.🔍 Which is the odd one out? (a) a rough wooden board (b) a dull brick (c) black cloth (d) a shiny steel plate
5. 5.🔭 Does black cloth reflect light well or poorly? (a) reflects light poorly (b) reflects light well
6. 6.🧺 Three of these are needed for the periscope. Which one is NOT needed? (a) sticky tape (b) two small mirrors (c) a ruler (d) a battery cell
7. 7.True or false: a ruler is not needed for the periscope. (a) False (b) True
8. 8.True or false: a pencil is not needed for the periscope. (a) False (b) True
9. 9.🧺 Which of these is not needed for the periscope? (a) an empty juice carton (b) two small mirrors (c) a ruler (d) vinegar
10. 10.🧺 Three of these are needed for the periscope. Which one is NOT needed? (a) a ruler (b) an empty juice carton (c) a pencil (d) a magnet
11. 11.🧺 Three of these are needed for the periscope. Which one is NOT needed? (a) a ruler (b) vinegar (c) a pencil (d) two small mirrors
12. 12.True or false: a shiny steel plate reflects light poorly. (a) False (b) True
13. 13.🧺 Do we need two small mirrors for the periscope? (a) needed (b) not needed
14. 14.🔍 Which is the odd one out? (a) aluminium foil (b) a shiny steel plate (c) black cloth (d) still clear water
15. 15.True or false: still clear water reflects light poorly. (a) False (b) True
16. 16.🧺 Which of these is needed for the periscope? (a) a pencil (b) a battery cell (c) a magnet (d) turmeric powder
17. 17.🛟 Who should cut the holes in the juice carton? (a) the youngest child (b) a friend who is running (c) a grown-up (d) nobody needs to
18. 18.⚖️ 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
19. 19.⚖️ Fair test — does the angle of the mirrors change how clearly you see? Which of these is the one thing we change? (a) the angle of the mirrors (b) the same mirrors (c) the same carton (d) the object we look at
20. 20.🔮 Predict: you hold a written word up to a mirror. The letters look ___. (a) in colour (b) much bigger (c) upside down only (d) flipped left to right
21. 21.🔮 Predict: you cover the top mirror with paper. What do you see? (a) a rainbow (b) a brighter view (c) two pictures (d) only darkness
22. 22.🔭 Who uses a periscope to look above the water? (a) a farmer (b) a pilot in a plane (c) a baker (d) a submarine crew
23. 23.🔭 Does a shiny steel plate reflect light well or poorly? (a) reflects light well (b) reflects light poorly
24. 24.🔭 How many times does light bounce off a mirror in a simple periscope?
25. 25.🔭 Which of these reflects light well? (a) black cloth (b) aluminium foil (c) dark soil (d) a dull brick
26. 26.⚖️ Fair test — does the angle of the mirrors change how clearly you see? Which of these is kept the same? (a) the angle of the mirrors (b) how clear the view is (c) the object we look at
27. 27.⚖️ Fair test — does the angle of the mirrors change how clearly you see? Which of these is kept the same? (a) how clear the view is (b) the angle of the mirrors (c) the same mirrors
28. 28.🧺 Do we need a ruler for the periscope? (a) needed (b) not needed
29. 29.🔭 Which of these reflects light poorly? (a) a mirror (b) a shiny steel plate (c) a dull brick (d) still clear water
30. 30.🔭 At what angle are the mirrors set in a simple periscope? (a) 180 degrees (b) 90 degrees (c) 45 degrees (d) 10 degrees
31. 31.🔭 Does a mirror reflect light well or poorly? (a) reflects light well (b) reflects light poorly
32. 32.🧺 Three of these are needed for the periscope. Which one is NOT needed? (a) a balloon (b) sticky tape (c) an empty juice carton (d) a pencil
33. 33.True or false: two small mirrors is needed for the periscope. (a) False (b) True
34. 34.🧺 Do we need turmeric powder for the periscope? (a) not needed (b) needed
35. 35.🛟 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
36. 36.🔭 How many mirrors does a simple periscope use?
37. 37.🔭 Which of these reflects light well? (a) dark soil (b) black cloth (c) a shiny steel plate (d) a dull brick
38. 38.🔭 Which of these reflects light poorly? (a) a mirror (b) black cloth (c) a shiny steel plate (d) still clear water
39. 39.⚖️ Fair test — does the angle of the mirrors change how clearly you see? Which of these is kept the same? (a) the same light (b) the angle of the mirrors (c) how clear the view is
40. 40.🔭 What does a periscope let you do? (a) hear far sounds (b) see germs (c) see over a wall (d) see in the dark

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