Periscope STEM Project Worksheet

Science experiments lesson 28: Mirror periscope · Set 995 · 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) sticky tape (b) a magnet (c) a ruler (d) an empty juice carton
2. 2.🧺 Which of these is needed for the periscope? (a) a battery cell (b) turmeric powder (c) a magnet (d) a ruler
3. 3.🔍 Which is the odd one out? (a) a mirror (b) aluminium foil (c) a dull brick (d) a shiny steel plate
4. 4.🧺 Do we need vinegar for the periscope? (a) not needed (b) needed
5. 5.🔮 Predict: you make the periscope tube twice as tall. You can see over ___. (a) the ground (b) nothing at all (c) only short walls (d) taller walls
6. 6.🔍 Which is the odd one out? (a) still clear water (b) a dull brick (c) a rough wooden board (d) black cloth
7. 7.🔭 Why must the two mirrors face each other and be parallel? (a) so light reaches the eye (b) to make it heavy (c) so it looks shiny (d) so it can float
8. 8.🧺 Which of these is needed for the periscope? (a) a magnet (b) a battery cell (c) yeast (d) sticky tape
9. 9.🔭 How many mirrors does a simple periscope use?
10. 10.🧺 Do we need a ruler for the periscope? (a) needed (b) not needed
11. 11.🔍 Which is the odd one out? (a) still clear water (b) a shiny steel plate (c) a mirror (d) black cloth
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 change it (c) we keep it the same
13. 13.📘 Light bouncing off a mirror is called ___. (a) evaporation (b) reflection (c) refraction (d) magnetism
14. 14.🔍 Which is the odd one out? (a) black cloth (b) dark soil (c) a rough wooden board (d) a mirror
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 same light (b) the angle of the mirrors (c) the same carton (d) the object we look at
16. 16.🔭 Does aluminium foil reflect light well or poorly? (a) reflects light well (b) reflects light poorly
17. 17.🧺 Three of these are needed for the periscope. Which one is NOT needed? (a) an empty juice carton (b) a magnet (c) a ruler (d) a pencil
18. 18.🔍 Which is the odd one out? (a) aluminium foil (b) still clear water (c) dark soil (d) a mirror
19. 19.🔭 How many times does light bounce off a mirror in a simple periscope?
20. 20.⚖️ 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
21. 21.🧺 Which of these is not needed for the periscope? (a) vinegar (b) two small mirrors (c) a ruler (d) an empty juice carton
22. 22.⚖️ 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
23. 23.🛟 Who should cut the holes in the juice carton? (a) the youngest child (b) a grown-up (c) a friend who is running (d) nobody needs to
24. 24.🔭 Does a mirror reflect light well or poorly? (a) reflects light poorly (b) reflects light well
25. 25.⚖️ 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 change it (b) we measure it (c) we keep it the same
26. 26.🧺 Three of these are needed for the periscope. Which one is NOT needed? (a) an empty juice carton (b) a ruler (c) a pencil (d) yeast
27. 27.🔭 At what angle are the mirrors set in a simple periscope? (a) 90 degrees (b) 10 degrees (c) 45 degrees (d) 180 degrees
28. 28.True or false: a rough wooden board reflects light well. (a) True (b) False
29. 29.🛟 Which mirrors are safest for a children’s periscope? (a) plastic safety mirrors (b) loose glass panes (c) broken glass bits (d) big wall mirrors
30. 30.🔭 Which of these reflects light well? (a) a rough wooden board (b) black cloth (c) still clear water (d) dark soil
31. 31.⚖️ 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) False (b) True
32. 32.🔭 Which of these reflects light well? (a) a rough wooden board (b) dark soil (c) a dull brick (d) a mirror
33. 33.🔭 Which of these reflects light poorly? (a) dark soil (b) still clear water (c) a shiny steel plate (d) aluminium foil
34. 34.🔭 Who uses a periscope to look above the water? (a) a submarine crew (b) a farmer (c) a baker (d) a pilot in a plane
35. 35.⚖️ 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
36. 36.🧺 Three of these are needed for the periscope. Which one is NOT needed? (a) two small mirrors (b) sticky tape (c) an empty juice carton (d) a battery cell
37. 37.True or false: two small mirrors is not needed for the periscope. (a) False (b) True
38. 38.🔭 Does black cloth reflect light well or poorly? (a) reflects light well (b) reflects light poorly
39. 39.🔮 Predict: you hold a written word up to a mirror. The letters look ___. (a) much bigger (b) upside down only (c) in colour (d) flipped left to right
40. 40.⚖️ Fair test — does the angle of the mirrors change how clearly you see? What do we do with “the same light”? (a) we keep it the same (b) we measure it (c) we change it

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