Periscope STEM Project Worksheet

Science experiments lesson 28: Mirror periscope · Set 983 · 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.🧺 Which of these is not needed for the periscope? (a) a ruler (b) two small mirrors (c) a pencil (d) a balloon
2. 2.⚖️ 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 keep it the same (b) we measure it (c) we change it
3. 3.⚖️ Fair test — does the angle of the mirrors change how clearly you see? True or false: the same light is the one thing we change. (a) False (b) True
4. 4.🧺 Do we need a pencil for the periscope? (a) not needed (b) needed
5. 5.🧺 Which of these is needed for the periscope? (a) a ruler (b) turmeric powder (c) vinegar (d) a magnet
6. 6.🔭 Does a dull brick reflect light well or poorly? (a) reflects light well (b) reflects light poorly
7. 7.🔍 Which is the odd one out? (a) a mirror (b) a shiny steel plate (c) black cloth (d) still clear water
8. 8.🔭 Which of these reflects light poorly? (a) a shiny steel plate (b) a mirror (c) black cloth (d) still clear water
9. 9.🔭 Who uses a periscope to look above the water? (a) a baker (b) a pilot in a plane (c) a submarine crew (d) a farmer
10. 10.🧺 Three of these are needed for the periscope. Which one is NOT needed? (a) a pencil (b) yeast (c) an empty juice carton (d) a ruler
11. 11.🔮 Predict: you cover the top mirror with paper. What do you see? (a) a rainbow (b) two pictures (c) only darkness (d) a brighter view
12. 12.⚖️ Fair test — does the angle of the mirrors change how clearly you see? What do we do with “the same mirrors”? (a) we measure it (b) we keep it the same (c) we change it
13. 13.⚖️ 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
14. 14.🔭 What does a periscope let you do? (a) see over a wall (b) see germs (c) hear far sounds (d) see in the dark
15. 15.🔭 Does a shiny steel plate reflect light well or poorly? (a) reflects light poorly (b) reflects light well
16. 16.🔮 Predict: you hold a written word up to a mirror. The letters look ___. (a) much bigger (b) flipped left to right (c) upside down only (d) in colour
17. 17.🔍 Which is the odd one out? (a) dark soil (b) black cloth (c) a rough wooden board (d) aluminium foil
18. 18.True or false: a battery cell is not needed for the periscope. (a) True (b) False
19. 19.🧺 Do we need two small mirrors for the periscope? (a) not needed (b) needed
20. 20.⚖️ 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
21. 21.🛟 Which mirrors are safest for a children’s periscope? (a) plastic safety mirrors (b) big wall mirrors (c) loose glass panes (d) broken glass bits
22. 22.True or false: two small mirrors is not needed for the periscope. (a) True (b) False
23. 23.⚖️ Fair test — does the angle of the mirrors change how clearly you see? True or false: the same mirrors is kept the same. (a) False (b) True
24. 24.⚖️ 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 measure it (b) we keep it the same (c) we change it
25. 25.True or false: dark soil reflects light poorly. (a) True (b) False
26. 26.⚖️ Fair test — does the angle of the mirrors change how clearly you see? Which of these is what we measure? (a) how clear the view is (b) the object we look at (c) the same carton (d) the same mirrors
27. 27.🧺 Do we need a battery cell for the periscope? (a) needed (b) not needed
28. 28.🛟 Who should cut the holes in the juice carton? (a) a friend who is running (b) a grown-up (c) nobody needs to (d) the youngest child
29. 29.True or false: a rough wooden board reflects light poorly. (a) True (b) False
30. 30.True or false: dark soil reflects light well. (a) True (b) False
31. 31.🔭 How many times does light bounce off a mirror in a simple periscope?
32. 32.⚖️ Fair test — does the angle of the mirrors change how clearly you see? True or false: the same carton is what we measure. (a) True (b) False
33. 33.🔍 Which is the odd one out? (a) black cloth (b) dark soil (c) still clear water (d) a rough wooden board
34. 34.True or false: a battery cell is needed for the periscope. (a) False (b) True
35. 35.🔭 Which of these reflects light well? (a) a rough wooden board (b) dark soil (c) still clear water (d) black cloth
36. 36.🧺 Do we need turmeric powder for the periscope? (a) needed (b) not needed
37. 37.⚖️ 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 measure it (b) we keep it the same (c) we change it
38. 38.🧺 Do we need a ruler for the periscope? (a) not needed (b) needed
39. 39.🔭 Which of these reflects light poorly? (a) a shiny steel plate (b) dark soil (c) aluminium foil (d) a mirror
40. 40.True or false: turmeric powder is not needed for the periscope. (a) False (b) True

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