Periscope STEM Project Worksheet

Science experiments lesson 28: Mirror periscope · Set 941 · 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? Which of these is what we measure? (a) the same light (b) how clear the view is (c) the same mirrors (d) the same carton
2. 2.True or false: vinegar is not needed for the periscope. (a) True (b) False
3. 3.🧺 Which of these is not needed for the periscope? (a) a pencil (b) an empty juice carton (c) a magnet (d) a ruler
4. 4.🔭 Which of these reflects light well? (a) a dull brick (b) a rough wooden board (c) dark soil (d) a mirror
5. 5.🔭 Which of these reflects light well? (a) dark soil (b) a dull brick (c) a shiny steel plate (d) black cloth
6. 6.True or false: aluminium foil reflects light poorly. (a) True (b) False
7. 7.⚖️ 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 keep it the same (b) we change it (c) we measure it
8. 8.🛟 Which mirrors are safest for a children’s periscope? (a) big wall mirrors (b) loose glass panes (c) broken glass bits (d) plastic safety mirrors
9. 9.True or false: a pencil is not needed for the periscope. (a) True (b) False
10. 10.True or false: two small mirrors is needed for the periscope. (a) False (b) True
11. 11.True or false: a magnet is needed for the periscope. (a) False (b) True
12. 12.🧺 Which of these is needed for the periscope? (a) yeast (b) a magnet (c) sticky tape (d) turmeric powder
13. 13.⚖️ 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 measure it (b) we keep it the same (c) we change it
14. 14.🔍 Which is the odd one out? (a) a mirror (b) a shiny steel plate (c) still clear water (d) a rough wooden board
15. 15.⚖️ 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 light (d) the same carton
16. 16.🧺 Do we need sticky tape for the periscope? (a) needed (b) not needed
17. 17.🔭 What does a periscope let you do? (a) see over a wall (b) see germs (c) hear far sounds (d) see in the dark
18. 18.📘 Light bouncing off a mirror is called ___. (a) refraction (b) magnetism (c) reflection (d) evaporation
19. 19.True or false: an empty juice carton is not needed for the periscope. (a) False (b) True
20. 20.🔭 Which of these reflects light poorly? (a) still clear water (b) aluminium foil (c) a shiny steel plate (d) a dull brick
21. 21.🔭 Does black cloth reflect light well or poorly? (a) reflects light well (b) reflects light poorly
22. 22.🧺 Which of these is needed for the periscope? (a) a battery cell (b) a magnet (c) a ruler (d) vinegar
23. 23.🔭 How many mirrors does a simple periscope use?
24. 24.🔮 Predict: you make the periscope tube twice as tall. You can see over ___. (a) nothing at all (b) taller walls (c) only short walls (d) the ground
25. 25.🧺 Do we need a battery cell for the periscope? (a) not needed (b) needed
26. 26.⚖️ 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
27. 27.True or false: yeast is not needed for the periscope. (a) True (b) False
28. 28.🧺 Which of these is not needed for the periscope? (a) a pencil (b) an empty juice carton (c) sticky tape (d) vinegar
29. 29.🔍 Which is the odd one out? (a) black cloth (b) a shiny steel plate (c) still clear water (d) a mirror
30. 30.🧺 Three of these are needed for the periscope. Which one is NOT needed? (a) a ruler (b) yeast (c) two small mirrors (d) sticky tape
31. 31.🔭 Which of these reflects light well? (a) a dull brick (b) aluminium foil (c) a rough wooden board (d) black cloth
32. 32.🔭 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
33. 33.🛟 Who should cut the holes in the juice carton? (a) a friend who is running (b) the youngest child (c) a grown-up (d) nobody needs to
34. 34.⚖️ 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) False (b) True
35. 35.🧺 Do we need turmeric powder for the periscope? (a) needed (b) not needed
36. 36.True or false: a dull brick reflects light poorly. (a) True (b) False
37. 37.⚖️ 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
38. 38.🧺 Three of these are needed for the periscope. Which one is NOT needed? (a) a pencil (b) sticky tape (c) a magnet (d) an empty juice carton
39. 39.True or false: a dull brick reflects light well. (a) True (b) False
40. 40.🛟 You must never point a periscope or a mirror at ___. (a) a wall (b) a tree (c) a friend’s toy (d) the Sun

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