Periscope STEM Project Worksheet

Science experiments lesson 28: Mirror periscope · Set 515 · 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.🛟 You must never point a periscope or a mirror at ___. (a) a friend’s toy (b) a wall (c) the Sun (d) a tree
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.🔮 Predict: you hold a written word up to a mirror. The letters look ___. (a) upside down only (b) in colour (c) much bigger (d) flipped left to right
4. 4.🧺 Do we need an empty juice carton for the periscope? (a) needed (b) not needed
5. 5.🔭 Does a rough wooden board reflect light well or poorly? (a) reflects light well (b) reflects light poorly
6. 6.🧺 Which of these is not needed for the periscope? (a) a ruler (b) sticky tape (c) two small mirrors (d) a magnet
7. 7.🔭 How many times does light bounce off a mirror in a simple periscope?
8. 8.⚖️ 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
9. 9.🔭 Which of these reflects light well? (a) a rough wooden board (b) black cloth (c) dark soil (d) aluminium foil
10. 10.⚖️ 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 measure it (c) we change it
11. 11.🔭 Which of these reflects light poorly? (a) still clear water (b) a shiny steel plate (c) black cloth (d) a mirror
12. 12.⚖️ 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
13. 13.🔍 Which is the odd one out? (a) aluminium foil (b) a rough wooden board (c) dark soil (d) black cloth
14. 14.🔭 Does a dull brick reflect light well or poorly? (a) reflects light well (b) reflects light poorly
15. 15.🔍 Which is the odd one out? (a) a dull brick (b) a shiny steel plate (c) aluminium foil (d) a mirror
16. 16.True or false: still clear water reflects light poorly. (a) True (b) False
17. 17.⚖️ 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
18. 18.🛟 Who should cut the holes in the juice carton? (a) a grown-up (b) the youngest child (c) nobody needs to (d) a friend who is running
19. 19.🧺 Which of these is not needed for the periscope? (a) a pencil (b) yeast (c) sticky tape (d) two small mirrors
20. 20.⚖️ Fair test — does the angle of the mirrors change how clearly you see? Which of these is the one thing we change? (a) the angle of the mirrors (b) the same mirrors (c) the object we look at (d) the same carton
21. 21.🔭 What does a periscope let you do? (a) see over a wall (b) see germs (c) hear far sounds (d) see in the dark
22. 22.⚖️ 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
23. 23.True or false: a battery cell is not needed for the periscope. (a) True (b) False
24. 24.🔮 Predict: you cover the top mirror with paper. What do you see? (a) a rainbow (b) only darkness (c) two pictures (d) a brighter view
25. 25.🧺 Three of these are needed for the periscope. Which one is NOT needed? (a) a ruler (b) a balloon (c) a pencil (d) sticky tape
26. 26.⚖️ 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
27. 27.🧺 Do we need yeast for the periscope? (a) not needed (b) needed
28. 28.True or false: a pencil is not needed for the periscope. (a) True (b) False
29. 29.⚖️ Fair test — does the angle of the mirrors change how clearly you see? True or false: the object we look at is kept the same. (a) False (b) True
30. 30.🔭 How many mirrors does a simple periscope use?
31. 31.🧺 Which of these is not needed for the periscope? (a) an empty juice carton (b) sticky tape (c) a battery cell (d) two small mirrors
32. 32.🧺 Which of these is needed for the periscope? (a) a battery cell (b) vinegar (c) a ruler (d) a balloon
33. 33.🔭 Does still clear water reflect light well or poorly? (a) reflects light well (b) reflects light poorly
34. 34.🧺 Do we need sticky tape for the periscope? (a) needed (b) not needed
35. 35.🔭 Which of these reflects light poorly? (a) still clear water (b) a dull brick (c) aluminium foil (d) a shiny steel plate
36. 36.🔍 Which is the odd one out? (a) a shiny steel plate (b) black cloth (c) dark soil (d) a dull brick
37. 37.🛟 Which mirrors are safest for a children’s periscope? (a) loose glass panes (b) big wall mirrors (c) broken glass bits (d) plastic safety mirrors
38. 38.🔭 Does black cloth reflect light well or poorly? (a) reflects light well (b) reflects light poorly
39. 39.True or false: dark soil reflects light well. (a) False (b) True
40. 40.🔍 Which is the odd one out? (a) still clear water (b) dark soil (c) a rough wooden board (d) a dull brick

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