Periscope STEM Project Worksheet

Science experiments lesson 28: Mirror periscope · Set 972 · 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? What do we do with “how clear the view is”? (a) we measure it (b) we change it (c) we keep it the same
2. 2.⚖️ 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) how clear the view is (c) the angle of the mirrors (d) the object we look at
3. 3.🔭 How many mirrors does a simple periscope use?
4. 4.🧺 Which of these is needed for the periscope? (a) a magnet (b) two small mirrors (c) a battery cell (d) a balloon
5. 5.🔭 Does a rough wooden board reflect light well or poorly? (a) reflects light well (b) reflects light poorly
6. 6.🔭 Does a shiny steel plate reflect light well or poorly? (a) reflects light poorly (b) reflects light well
7. 7.🧺 Three of these are needed for the periscope. Which one is NOT needed? (a) an empty juice carton (b) two small mirrors (c) vinegar (d) sticky tape
8. 8.🛟 Which mirrors are safest for a children’s periscope? (a) broken glass bits (b) plastic safety mirrors (c) big wall mirrors (d) loose glass panes
9. 9.⚖️ Fair test — does the angle of the mirrors change how clearly you see? What do we do with “the same mirrors”? (a) we change it (b) we measure it (c) we keep it the same
10. 10.True or false: yeast is not needed for the periscope. (a) True (b) False
11. 11.🧺 Do we need turmeric powder for the periscope? (a) not needed (b) needed
12. 12.True or false: two small mirrors is needed for the periscope. (a) True (b) False
13. 13.⚖️ Fair test — does the angle of the mirrors change how clearly you see? True or false: the same carton is kept the same. (a) False (b) True
14. 14.True or false: a mirror reflects light poorly. (a) False (b) True
15. 15.🧺 Which of these is not needed for the periscope? (a) vinegar (b) a pencil (c) two small mirrors (d) sticky tape
16. 16.⚖️ 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 measure it (c) we keep it the same
17. 17.📘 Light bouncing off a mirror is called ___. (a) magnetism (b) refraction (c) reflection (d) evaporation
18. 18.🔭 Which of these reflects light poorly? (a) a shiny steel plate (b) still clear water (c) a mirror (d) a dull brick
19. 19.🔮 Predict: you hold a written word up to a mirror. The letters look ___. (a) in colour (b) much bigger (c) flipped left to right (d) upside down only
20. 20.🔍 Which is the odd one out? (a) aluminium foil (b) a dull brick (c) still clear water (d) a mirror
21. 21.⚖️ 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 angle of the mirrors (d) the same 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 measure it (b) we keep it the same (c) we change it
23. 23.🔍 Which is the odd one out? (a) still clear water (b) a rough wooden board (c) aluminium foil (d) a shiny steel plate
24. 24.🔭 Which of these reflects light well? (a) dark soil (b) a shiny steel plate (c) black cloth (d) a dull brick
25. 25.True or false: an empty juice carton is not needed for the periscope. (a) False (b) True
26. 26.🛟 Who should cut the holes in the juice carton? (a) nobody needs to (b) a friend who is running (c) the youngest child (d) a grown-up
27. 27.True or false: a mirror reflects light well. (a) True (b) False
28. 28.True or false: a rough wooden board reflects light poorly. (a) False (b) True
29. 29.True or false: a battery cell is not needed for the periscope. (a) False (b) True
30. 30.🔭 Which of these reflects light well? (a) still clear water (b) black cloth (c) a rough wooden board (d) dark soil
31. 31.🔭 Who uses a periscope to look above the water? (a) a baker (b) a farmer (c) a pilot in a plane (d) a submarine crew
32. 32.🧺 Which of these is not needed for the periscope? (a) a ruler (b) yeast (c) two small mirrors (d) an empty juice carton
33. 33.🔭 Why must the two mirrors face each other and be parallel? (a) so light reaches the eye (b) so it can float (c) to make it heavy (d) so it looks shiny
34. 34.🔭 Which of these reflects light well? (a) a rough wooden board (b) a dull brick (c) dark soil (d) aluminium foil
35. 35.🧺 Three of these are needed for the periscope. Which one is NOT needed? (a) two small mirrors (b) a balloon (c) sticky tape (d) a pencil
36. 36.True or false: a pencil is needed for the periscope. (a) True (b) False
37. 37.🔍 Which is the odd one out? (a) still clear water (b) a rough wooden board (c) a dull brick (d) black cloth
38. 38.🧺 Three of these are needed for the periscope. Which one is NOT needed? (a) two small mirrors (b) a magnet (c) an empty juice carton (d) sticky tape
39. 39.🧺 Do we need two small mirrors for the periscope? (a) needed (b) not needed
40. 40.🔭 How many times does light bounce off a mirror in a simple periscope?

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