Periscope STEM Project Worksheet

Science experiments lesson 28: Mirror periscope · Set 233 · 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? True or false: the object we look at is kept the same. (a) True (b) False
2. 2.⚖️ Fair test — does the angle of the mirrors change how clearly you see? Which of these is what we measure? (a) the object we look at (b) the same carton (c) the angle of the mirrors (d) how clear the view is
3. 3.🧺 Do we need a pencil for the periscope? (a) needed (b) not needed
4. 4.🧺 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
5. 5.True or false: a ruler is not needed for the periscope. (a) False (b) True
6. 6.🔭 Which of these reflects light well? (a) a shiny steel plate (b) a rough wooden board (c) black cloth (d) a dull brick
7. 7.🔭 Which of these reflects light well? (a) a dull brick (b) black cloth (c) still clear water (d) dark soil
8. 8.🧺 Three of these are needed for the periscope. Which one is NOT needed? (a) an empty juice carton (b) a ruler (c) sticky tape (d) yeast
9. 9.🔭 How many times does light bounce off a mirror in a simple periscope?
10. 10.🔍 Which is the odd one out? (a) a dull brick (b) aluminium foil (c) dark soil (d) black cloth
11. 11.🔮 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
12. 12.⚖️ 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 mirrors
13. 13.🧺 Do we need yeast for the periscope? (a) needed (b) not needed
14. 14.🔍 Which is the odd one out? (a) a mirror (b) still clear water (c) aluminium foil (d) a dull brick
15. 15.⚖️ 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 keep it the same (c) we measure it
16. 16.🧺 Do we need sticky tape for the periscope? (a) needed (b) not needed
17. 17.⚖️ 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
18. 18.🧺 Three of these are needed for the periscope. Which one is NOT needed? (a) two small mirrors (b) vinegar (c) a ruler (d) an empty juice carton
19. 19.🔭 Does a shiny steel plate reflect light well or poorly? (a) reflects light well (b) reflects light poorly
20. 20.True or false: turmeric powder is needed for the periscope. (a) False (b) True
21. 21.🔭 How many mirrors does a simple periscope use?
22. 22.⚖️ Fair test — does the angle of the mirrors change how clearly you see? True or false: the same light is kept the same. (a) False (b) True
23. 23.True or false: vinegar is needed for the periscope. (a) True (b) False
24. 24.🔍 Which is the odd one out? (a) black cloth (b) dark soil (c) a rough wooden board (d) a mirror
25. 25.🧺 Three of these are needed for the periscope. Which one is NOT needed? (a) an empty juice carton (b) two small mirrors (c) a pencil (d) turmeric powder
26. 26.🛟 Who should cut the holes in the juice carton? (a) a grown-up (b) nobody needs to (c) the youngest child (d) a friend who is running
27. 27.🔭 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
28. 28.True or false: a mirror reflects light poorly. (a) False (b) True
29. 29.🧺 Which of these is needed for the periscope? (a) an empty juice carton (b) a balloon (c) turmeric powder (d) a battery cell
30. 30.🧺 Three of these are needed for the periscope. Which one is NOT needed? (a) a pencil (b) two small mirrors (c) sticky tape (d) a battery cell
31. 31.🛟 Which mirrors are safest for a children’s periscope? (a) big wall mirrors (b) plastic safety mirrors (c) loose glass panes (d) broken glass bits
32. 32.⚖️ Fair test — does the angle of the mirrors change how clearly you see? True or false: the same mirrors is the one thing we change. (a) True (b) False
33. 33.🧺 Do we need a balloon for the periscope? (a) not needed (b) needed
34. 34.🧺 Do we need an empty juice carton for the periscope? (a) needed (b) not needed
35. 35.🔭 Does a mirror reflect light well or poorly? (a) reflects light well (b) reflects light poorly
36. 36.🔭 Does a dull brick reflect light well or poorly? (a) reflects light poorly (b) reflects light well
37. 37.🧺 Do we need a ruler for the periscope? (a) needed (b) not needed
38. 38.🔍 Which is the odd one out? (a) black cloth (b) still clear water (c) dark soil (d) a rough wooden board
39. 39.🔭 Does black cloth reflect light well or poorly? (a) reflects light poorly (b) reflects light well
40. 40.🧺 Which of these is not needed for the periscope? (a) an empty juice carton (b) a pencil (c) a balloon (d) a ruler

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