Periscope STEM Project Worksheet

Science experiments lesson 28: Mirror periscope · Set 482 · 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 battery cell (b) an empty juice carton (c) sticky tape (d) a ruler
2. 2.🔍 Which is the odd one out? (a) black cloth (b) dark soil (c) still clear water (d) a dull brick
3. 3.🔮 Predict: you cover the top mirror with paper. What do you see? (a) two pictures (b) a rainbow (c) a brighter view (d) only darkness
4. 4.🧺 Three of these are needed for the periscope. Which one is NOT needed? (a) a battery cell (b) two small mirrors (c) sticky tape (d) an empty juice carton
5. 5.⚖️ 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
6. 6.🧺 Three of these are needed for the periscope. Which one is NOT needed? (a) a pencil (b) a ruler (c) sticky tape (d) yeast
7. 7.🛟 Which mirrors are safest for a children’s periscope? (a) plastic safety mirrors (b) broken glass bits (c) loose glass panes (d) big wall mirrors
8. 8.🧺 Three of these are needed for the periscope. Which one is NOT needed? (a) a balloon (b) sticky tape (c) a ruler (d) an empty juice carton
9. 9.🔍 Which is the odd one out? (a) a mirror (b) a dull brick (c) dark soil (d) a rough wooden board
10. 10.🧺 Which of these is needed for the periscope? (a) a balloon (b) vinegar (c) a battery cell (d) a pencil
11. 11.🔭 Which of these reflects light poorly? (a) black cloth (b) a shiny steel plate (c) aluminium foil (d) a mirror
12. 12.⚖️ 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 measure it (c) we keep it the same
13. 13.⚖️ 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 same carton (c) the angle of the mirrors (d) the same light
14. 14.🧺 Which of these is needed for the periscope? (a) a magnet (b) sticky tape (c) yeast (d) a battery cell
15. 15.🧺 Do we need sticky tape for the periscope? (a) needed (b) not needed
16. 16.🧺 Do we need an empty juice carton for the periscope? (a) not needed (b) needed
17. 17.🔭 Which of these reflects light well? (a) still clear water (b) dark soil (c) a dull brick (d) black cloth
18. 18.⚖️ Fair test — does the angle of the mirrors change how clearly you see? Which of these is the one thing we change? (a) the object we look at (b) the angle of the mirrors (c) the same carton (d) the same mirrors
19. 19.🧺 Do we need two small mirrors for the periscope? (a) not needed (b) needed
20. 20.🔭 What does a periscope let you do? (a) hear far sounds (b) see germs (c) see in the dark (d) see over a wall
21. 21.🔭 Who uses a periscope to look above the water? (a) a pilot in a plane (b) a submarine crew (c) a baker (d) a farmer
22. 22.🧺 Which of these is not needed for the periscope? (a) sticky tape (b) a magnet (c) a ruler (d) a pencil
23. 23.🔭 Does dark soil reflect light well or poorly? (a) reflects light well (b) reflects light poorly
24. 24.🛟 You must never point a periscope or a mirror at ___. (a) a friend’s toy (b) the Sun (c) a tree (d) a wall
25. 25.⚖️ Fair test — does the angle of the mirrors change how clearly you see? True or false: how clear the view is is the one thing we change. (a) True (b) False
26. 26.True or false: dark soil reflects light well. (a) True (b) False
27. 27.🧺 Do we need vinegar for the periscope? (a) not needed (b) needed
28. 28.🧺 Three of these are needed for the periscope. Which one is NOT needed? (a) two small mirrors (b) an empty juice carton (c) turmeric powder (d) a ruler
29. 29.🔭 How many times does light bounce off a mirror in a simple periscope?
30. 30.🔭 How many mirrors does a simple periscope use?
31. 31.True or false: a mirror reflects light well. (a) True (b) False
32. 32.True or false: two small mirrors is not needed for the periscope. (a) True (b) False
33. 33.True or false: a dull brick reflects light poorly. (a) False (b) True
34. 34.🛟 Who should cut the holes in the juice carton? (a) a friend who is running (b) nobody needs to (c) the youngest child (d) a grown-up
35. 35.⚖️ Fair test — does the angle of the mirrors change how clearly you see? True or false: the angle of the mirrors is kept the same. (a) True (b) False
36. 36.🔭 Which of these reflects light poorly? (a) still clear water (b) dark soil (c) a shiny steel plate (d) a mirror
37. 37.🧺 Which of these is not needed for the periscope? (a) an empty juice carton (b) a pencil (c) sticky tape (d) a balloon
38. 38.🧺 Which of these is not needed for the periscope? (a) yeast (b) a pencil (c) sticky tape (d) a ruler
39. 39.🔭 Which of these reflects light well? (a) dark soil (b) a dull brick (c) a mirror (d) black cloth
40. 40.🔍 Which is the odd one out? (a) a mirror (b) a shiny steel plate (c) still clear water (d) black cloth

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