Periscope STEM Project Worksheet

Science experiments lesson 28: Mirror periscope · Set 369 · 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.🧺 Three of these are needed for the periscope. Which one is NOT needed? (a) two small mirrors (b) an empty juice carton (c) yeast (d) sticky tape
2. 2.🔭 Which of these reflects light well? (a) dark soil (b) a rough wooden board (c) a shiny steel plate (d) a dull brick
3. 3.⚖️ 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 object we look at (c) how clear the view is (d) the same mirrors
4. 4.🧺 Which of these is not needed for the periscope? (a) two small mirrors (b) a pencil (c) a ruler (d) a balloon
5. 5.🧺 Do we need a magnet for the periscope? (a) needed (b) not needed
6. 6.⚖️ 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 measure it (c) we keep it the same
7. 7.True or false: aluminium foil reflects light poorly. (a) False (b) True
8. 8.🧺 Three of these are needed for the periscope. Which one is NOT needed? (a) a balloon (b) sticky tape (c) two small mirrors (d) a pencil
9. 9.🔭 How many mirrors does a simple periscope use?
10. 10.🔭 How many times does light bounce off a mirror in a simple periscope?
11. 11.⚖️ 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 same light
12. 12.🔭 Who uses a periscope to look above the water? (a) a farmer (b) a submarine crew (c) a baker (d) a pilot in a plane
13. 13.🧺 Do we need yeast for the periscope? (a) needed (b) not needed
14. 14.⚖️ 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 light (b) the same carton (c) the angle of the mirrors (d) the object we look at
15. 15.🛟 Who should cut the holes in the juice carton? (a) a friend who is running (b) the youngest child (c) nobody needs to (d) a grown-up
16. 16.True or false: black cloth reflects light poorly. (a) False (b) True
17. 17.🧺 Do we need a ruler for the periscope? (a) needed (b) not needed
18. 18.🔮 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
19. 19.🔮 Predict: you hold a written word up to a mirror. The letters look ___. (a) much bigger (b) in colour (c) upside down only (d) flipped left to right
20. 20.🧺 Three of these are needed for the periscope. Which one is NOT needed? (a) a pencil (b) a battery cell (c) an empty juice carton (d) a ruler
21. 21.🔭 What does a periscope let you do? (a) see germs (b) see over a wall (c) hear far sounds (d) see in the dark
22. 22.🔭 Does a dull brick reflect light well or poorly? (a) reflects light well (b) reflects light poorly
23. 23.🔍 Which is the odd one out? (a) a rough wooden board (b) dark soil (c) a mirror (d) a dull brick
24. 24.True or false: a mirror reflects light poorly. (a) False (b) True
25. 25.⚖️ Fair test — does the angle of the mirrors change how clearly you see? What do we do with “the same carton”? (a) we change it (b) we keep it the same (c) we measure it
26. 26.True or false: black cloth reflects light well. (a) False (b) True
27. 27.🧺 Three of these are needed for the periscope. Which one is NOT needed? (a) an empty juice carton (b) a magnet (c) two small mirrors (d) a ruler
28. 28.⚖️ 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
29. 29.🔭 Does dark soil reflect light well or poorly? (a) reflects light well (b) reflects light poorly
30. 30.🧺 Three of these are needed for the periscope. Which one is NOT needed? (a) sticky tape (b) a ruler (c) turmeric powder (d) two small mirrors
31. 31.True or false: a rough wooden board reflects light poorly. (a) False (b) True
32. 32.⚖️ Fair test — does the angle of the mirrors change how clearly you see? True or false: the same mirrors is what we measure. (a) True (b) False
33. 33.True or false: a pencil is not needed for the periscope. (a) True (b) False
34. 34.🛟 Which mirrors are safest for a children’s periscope? (a) big wall mirrors (b) plastic safety mirrors (c) broken glass bits (d) loose glass panes
35. 35.🔭 Which of these reflects light poorly? (a) a dull brick (b) a shiny steel plate (c) a mirror (d) aluminium foil
36. 36.True or false: a shiny steel plate reflects light poorly. (a) True (b) False
37. 37.🔭 Does aluminium foil reflect light well or poorly? (a) reflects light poorly (b) reflects light well
38. 38.🔭 Which of these reflects light well? (a) black cloth (b) dark soil (c) a rough wooden board (d) aluminium foil
39. 39.🔍 Which is the odd one out? (a) aluminium foil (b) dark soil (c) black cloth (d) a dull brick
40. 40.True or false: dark soil reflects light well. (a) True (b) False

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