Periscope STEM Project Worksheet

Science experiments lesson 28: Mirror periscope · Set 770 · 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 dark soil reflect light well or poorly? (a) reflects light poorly (b) reflects light well
2. 2.⚖️ 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) True (b) False
3. 3.True or false: a mirror reflects light well. (a) True (b) False
4. 4.🔭 Does aluminium foil reflect light well or poorly? (a) reflects light poorly (b) reflects light well
5. 5.⚖️ Fair test — does the angle of the mirrors change how clearly you see? Which of these is kept the same? (a) the same mirrors (b) how clear the view is (c) the angle of the mirrors
6. 6.🧺 Three of these are needed for the periscope. Which one is NOT needed? (a) a ruler (b) two small mirrors (c) a pencil (d) vinegar
7. 7.🧺 Three of these are needed for the periscope. Which one is NOT needed? (a) sticky tape (b) yeast (c) two small mirrors (d) a ruler
8. 8.🧺 Three of these are needed for the periscope. Which one is NOT needed? (a) sticky tape (b) a ruler (c) a pencil (d) a magnet
9. 9.🧺 Which of these is not needed for the periscope? (a) an empty juice carton (b) a pencil (c) a balloon (d) a ruler
10. 10.🧺 Which of these is not needed for the periscope? (a) turmeric powder (b) a ruler (c) a pencil (d) an empty juice carton
11. 11.🔭 What does a periscope let you do? (a) see over a wall (b) see in the dark (c) see germs (d) hear far sounds
12. 12.🔮 Predict: you hold a written word up to a mirror. The letters look ___. (a) in colour (b) upside down only (c) much bigger (d) flipped left to right
13. 13.🔭 Why must the two mirrors face each other and be parallel? (a) to make it heavy (b) so it looks shiny (c) so it can float (d) so light reaches the eye
14. 14.⚖️ 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
15. 15.True or false: a dull brick reflects light poorly. (a) False (b) True
16. 16.🧺 Three of these are needed for the periscope. Which one is NOT needed? (a) an empty juice carton (b) a balloon (c) sticky tape (d) a pencil
17. 17.🧺 Three of these are needed for the periscope. Which one is NOT needed? (a) a ruler (b) sticky tape (c) turmeric powder (d) two small mirrors
18. 18.🔭 Does a shiny steel plate reflect light well or poorly? (a) reflects light well (b) reflects light poorly
19. 19.🔭 How many mirrors does a simple periscope use?
20. 20.🧺 Which of these is needed for the periscope? (a) sticky tape (b) vinegar (c) a magnet (d) a balloon
21. 21.🔭 Which of these reflects light well? (a) a rough wooden board (b) black cloth (c) still clear water (d) a dull brick
22. 22.🧺 Do we need a ruler for the periscope? (a) needed (b) not needed
23. 23.🧺 Do we need vinegar for the periscope? (a) needed (b) not needed
24. 24.⚖️ 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) how clear the view is (c) the same light (d) the object we look at
25. 25.🔭 Which of these reflects light well? (a) black cloth (b) a dull brick (c) a rough wooden board (d) a shiny steel plate
26. 26.🔭 How many times does light bounce off a mirror in a simple periscope?
27. 27.🔍 Which is the odd one out? (a) still clear water (b) aluminium foil (c) a mirror (d) a rough wooden board
28. 28.🔮 Predict: you make the periscope tube twice as tall. You can see over ___. (a) taller walls (b) only short walls (c) the ground (d) nothing at all
29. 29.🧺 Which of these is not needed for the periscope? (a) a pencil (b) two small mirrors (c) yeast (d) sticky tape
30. 30.🧺 Do we need a magnet for the periscope? (a) not needed (b) needed
31. 31.True or false: a ruler is needed for the periscope. (a) True (b) False
32. 32.🔭 Which of these reflects light well? (a) black cloth (b) dark soil (c) a dull brick (d) aluminium foil
33. 33.⚖️ 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 object we look at (c) the same carton (d) the same mirrors
34. 34.🔮 Predict: you cover the top mirror with paper. What do you see? (a) only darkness (b) a brighter view (c) two pictures (d) a rainbow
35. 35.🧺 Do we need sticky tape for the periscope? (a) needed (b) not needed
36. 36.True or false: dark soil reflects light poorly. (a) False (b) True
37. 37.🧺 Three of these are needed for the periscope. Which one is NOT needed? (a) sticky tape (b) a pencil (c) an empty juice carton (d) a battery cell
38. 38.⚖️ Fair test — does the angle of the mirrors change how clearly you see? True or false: the object we look at is what we measure. (a) True (b) False
39. 39.True or false: a dull brick reflects light well. (a) False (b) True
40. 40.🧺 Which of these is not needed for the periscope? (a) a pencil (b) a ruler (c) sticky tape (d) a magnet

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