Periscope STEM Project Worksheet

Science experiments lesson 28: Mirror periscope · Set 500 · 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) an empty juice carton (b) a ruler (c) a balloon (d) sticky tape
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) how clear the view is (b) the same light (c) the object we look at (d) the angle of the mirrors
3. 3.⚖️ 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
4. 4.🛟 Who should cut the holes in the juice carton? (a) nobody needs to (b) the youngest child (c) a grown-up (d) a friend who is running
5. 5.🔭 Which of these reflects light poorly? (a) still clear water (b) a mirror (c) aluminium foil (d) a rough wooden board
6. 6.True or false: two small mirrors is not needed for the periscope. (a) True (b) False
7. 7.True or false: a dull brick reflects light well. (a) True (b) False
8. 8.🧺 Which of these is needed for the periscope? (a) a battery cell (b) sticky tape (c) a magnet (d) turmeric powder
9. 9.⚖️ 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
10. 10.🔭 Which of these reflects light poorly? (a) still clear water (b) a mirror (c) aluminium foil (d) black cloth
11. 11.🧺 Do we need an empty juice carton for the periscope? (a) needed (b) not needed
12. 12.🔮 Predict: you cover the top mirror with paper. What do you see? (a) a brighter view (b) two pictures (c) a rainbow (d) only darkness
13. 13.🧺 Which of these is needed for the periscope? (a) a balloon (b) a pencil (c) a battery cell (d) vinegar
14. 14.🛟 Which mirrors are safest for a children’s periscope? (a) big wall mirrors (b) broken glass bits (c) loose glass panes (d) plastic safety mirrors
15. 15.True or false: a shiny steel plate reflects light poorly. (a) False (b) True
16. 16.🧺 Three of these are needed for the periscope. Which one is NOT needed? (a) sticky tape (b) two small mirrors (c) an empty juice carton (d) vinegar
17. 17.🔮 Predict: you hold a written word up to a mirror. The letters look ___. (a) upside down only (b) much bigger (c) flipped left to right (d) in colour
18. 18.⚖️ 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
19. 19.🔭 Does a mirror reflect light well or poorly? (a) reflects light poorly (b) reflects light well
20. 20.🧺 Three of these are needed for the periscope. Which one is NOT needed? (a) an empty juice carton (b) a pencil (c) a magnet (d) sticky tape
21. 21.🧺 Which of these is not needed for the periscope? (a) a pencil (b) yeast (c) an empty juice carton (d) two small mirrors
22. 22.⚖️ Fair test — does the angle of the mirrors change how clearly you see? Which of these is what we measure? (a) the angle of the mirrors (b) how clear the view is (c) the same mirrors (d) the same light
23. 23.🔭 Why must the two mirrors face each other and be parallel? (a) to make it heavy (b) so it can float (c) so it looks shiny (d) so light reaches the eye
24. 24.🔍 Which is the odd one out? (a) a dull brick (b) dark soil (c) a shiny steel plate (d) a rough wooden board
25. 25.True or false: a magnet is not needed for the periscope. (a) True (b) False
26. 26.True or false: dark soil reflects light poorly. (a) True (b) False
27. 27.🧺 Do we need a pencil for the periscope? (a) needed (b) not needed
28. 28.🛟 You must never point a periscope or a mirror at ___. (a) the Sun (b) a tree (c) a wall (d) a friend’s toy
29. 29.📘 Light bouncing off a mirror is called ___. (a) evaporation (b) reflection (c) refraction (d) magnetism
30. 30.🔭 What does a periscope let you do? (a) hear far sounds (b) see germs (c) see in the dark (d) see over a wall
31. 31.🔭 How many mirrors does a simple periscope use?
32. 32.🔭 Which of these reflects light well? (a) black cloth (b) dark soil (c) aluminium foil (d) a rough wooden board
33. 33.🔭 At what angle are the mirrors set in a simple periscope? (a) 10 degrees (b) 45 degrees (c) 90 degrees (d) 180 degrees
34. 34.🔮 Predict: you make the periscope tube twice as tall. You can see over ___. (a) the ground (b) only short walls (c) nothing at all (d) taller walls
35. 35.🧺 Do we need vinegar for the periscope? (a) not needed (b) needed
36. 36.🧺 Three of these are needed for the periscope. Which one is NOT needed? (a) yeast (b) a pencil (c) two small mirrors (d) sticky tape
37. 37.🔭 Which of these reflects light poorly? (a) aluminium foil (b) a shiny steel plate (c) a dull brick (d) still clear water
38. 38.⚖️ Fair test — does the angle of the mirrors change how clearly you see? True or false: the same light is kept the same. (a) True (b) False
39. 39.True or false: turmeric powder is needed for the periscope. (a) False (b) True
40. 40.⚖️ 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

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