Periscope STEM Project Worksheet

Science experiments lesson 28: Mirror periscope · Set 394 · 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.🔭 How many mirrors does a simple periscope use?
2. 2.⚖️ 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
3. 3.True or false: still clear water reflects light poorly. (a) True (b) False
4. 4.🛟 Which mirrors are safest for a children’s periscope? (a) loose glass panes (b) broken glass bits (c) plastic safety mirrors (d) big wall mirrors
5. 5.⚖️ 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 object we look at (d) the angle of the mirrors
6. 6.🧺 Which of these is not needed for the periscope? (a) yeast (b) an empty juice carton (c) two small mirrors (d) a pencil
7. 7.🔭 Which of these reflects light well? (a) black cloth (b) a rough wooden board (c) dark soil (d) a shiny steel plate
8. 8.⚖️ Fair test — does the angle of the mirrors change how clearly you see? True or false: the same mirrors is what we measure. (a) True (b) False
9. 9.🔭 How many times does light bounce off a mirror in a simple periscope?
10. 10.🧺 Three of these are needed for the periscope. Which one is NOT needed? (a) yeast (b) two small mirrors (c) sticky tape (d) an empty juice carton
11. 11.🔍 Which is the odd one out? (a) a mirror (b) aluminium foil (c) black cloth (d) still clear water
12. 12.🧺 Do we need turmeric powder for the periscope? (a) needed (b) not needed
13. 13.🔭 Why must the two mirrors face each other and be parallel? (a) so light reaches the eye (b) so it looks shiny (c) to make it heavy (d) so it can float
14. 14.⚖️ Fair test — does the angle of the mirrors change how clearly you see? What do we do with “the same carton”? (a) we keep it the same (b) we measure it (c) we change it
15. 15.🔭 Does a dull brick reflect light well or poorly? (a) reflects light well (b) reflects light poorly
16. 16.True or false: vinegar is not needed for the periscope. (a) False (b) True
17. 17.🧺 Which of these is needed for the periscope? (a) a magnet (b) a pencil (c) turmeric powder (d) yeast
18. 18.🔍 Which is the odd one out? (a) still clear water (b) aluminium foil (c) a mirror (d) a rough wooden board
19. 19.🔮 Predict: you cover the top mirror with paper. What do you see? (a) two pictures (b) a brighter view (c) a rainbow (d) only darkness
20. 20.🧺 Three of these are needed for the periscope. Which one is NOT needed? (a) a balloon (b) two small mirrors (c) an empty juice carton (d) a ruler
21. 21.🔍 Which is the odd one out? (a) aluminium foil (b) dark soil (c) a shiny steel plate (d) a mirror
22. 22.🔭 Which of these reflects light well? (a) a dull brick (b) a rough wooden board (c) a mirror (d) black cloth
23. 23.🧺 Which of these is needed for the periscope? (a) a balloon (b) a magnet (c) turmeric powder (d) an empty juice carton
24. 24.🧺 Which of these is needed for the periscope? (a) a balloon (b) vinegar (c) a magnet (d) a ruler
25. 25.🔮 Predict: you hold a written word up to a mirror. The letters look ___. (a) much bigger (b) in colour (c) upside down only (d) flipped left to right
26. 26.⚖️ 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 light (d) the same carton
27. 27.🔭 What does a periscope let you do? (a) see over a wall (b) see in the dark (c) see germs (d) hear far sounds
28. 28.🔭 Which of these reflects light well? (a) dark soil (b) still clear water (c) black cloth (d) a rough wooden board
29. 29.True or false: black cloth reflects light well. (a) False (b) True
30. 30.🔭 Who uses a periscope to look above the water? (a) a farmer (b) a baker (c) a pilot in a plane (d) a submarine crew
31. 31.True or false: a rough wooden board reflects light well. (a) True (b) False
32. 32.⚖️ Fair test — does the angle of the mirrors change how clearly you see? What do we do with “the object we look at”? (a) we measure it (b) we keep it the same (c) we change it
33. 33.🔭 Which of these reflects light poorly? (a) a shiny steel plate (b) still clear water (c) black cloth (d) aluminium foil
34. 34.🔭 Does a shiny steel plate reflect light well or poorly? (a) reflects light poorly (b) reflects light well
35. 35.🔭 Does still clear water reflect light well or poorly? (a) reflects light poorly (b) reflects light well
36. 36.🔭 Does aluminium foil reflect light well or poorly? (a) reflects light poorly (b) reflects light well
37. 37.🛟 Who should cut the holes in the juice carton? (a) nobody needs to (b) a grown-up (c) a friend who is running (d) the youngest child
38. 38.⚖️ 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
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? True or false: the angle of the mirrors is what we measure. (a) True (b) False

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