Periscope STEM Project Worksheet

Science experiments lesson 28: Mirror periscope · Set 501 · 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.🧺 Do we need a balloon for the periscope? (a) needed (b) not needed
2. 2.🛟 You must never point a periscope or a mirror at ___. (a) a wall (b) the Sun (c) a tree (d) a friend’s toy
3. 3.🛟 Which mirrors are safest for a children’s periscope? (a) loose glass panes (b) broken glass bits (c) big wall mirrors (d) plastic safety mirrors
4. 4.⚖️ Fair test — does the angle of the mirrors change how clearly you see? Which of these is the one thing we change? (a) the object we look at (b) the angle of the mirrors (c) the same carton (d) how clear the view is
5. 5.🧺 Do we need an empty juice carton for the periscope? (a) needed (b) not needed
6. 6.🔭 What does a periscope let you do? (a) hear far sounds (b) see over a wall (c) see in the dark (d) see germs
7. 7.🔭 Which of these reflects light well? (a) dark soil (b) a dull brick (c) black cloth (d) a shiny steel plate
8. 8.🔍 Which is the odd one out? (a) black cloth (b) a mirror (c) a rough wooden board (d) a dull brick
9. 9.🧺 Do we need a pencil for the periscope? (a) needed (b) not needed
10. 10.True or false: sticky tape is not needed for the periscope. (a) True (b) False
11. 11.True or false: a dull brick reflects light poorly. (a) True (b) False
12. 12.True or false: vinegar is needed for the periscope. (a) True (b) False
13. 13.True or false: two small mirrors is needed for the periscope. (a) True (b) False
14. 14.🔭 Who uses a periscope to look above the water? (a) a baker (b) a farmer (c) a submarine crew (d) a pilot in a plane
15. 15.🔭 Does a shiny steel plate reflect light well or poorly? (a) reflects light well (b) reflects light poorly
16. 16.🔮 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
17. 17.True or false: two small mirrors is not needed for the periscope. (a) True (b) False
18. 18.🧺 Three of these are needed for the periscope. Which one is NOT needed? (a) two small mirrors (b) a ruler (c) sticky tape (d) yeast
19. 19.🧺 Which of these is needed for the periscope? (a) a balloon (b) a ruler (c) a magnet (d) vinegar
20. 20.True or false: a pencil is needed for the periscope. (a) True (b) False
21. 21.🧺 Three of these are needed for the periscope. Which one is NOT needed? (a) two small mirrors (b) a balloon (c) an empty juice carton (d) a pencil
22. 22.🔭 Which of these reflects light well? (a) black cloth (b) a rough wooden board (c) a dull brick (d) aluminium foil
23. 23.🔭 How many mirrors does a simple periscope use?
24. 24.🔍 Which is the odd one out? (a) a mirror (b) a dull brick (c) a shiny steel plate (d) still clear water
25. 25.🔮 Predict: you cover the top mirror with paper. What do you see? (a) a brighter view (b) a rainbow (c) only darkness (d) two pictures
26. 26.⚖️ Fair test — does the angle of the mirrors change how clearly you see? True or false: the same light is what we measure. (a) True (b) False
27. 27.True or false: yeast is needed for the periscope. (a) False (b) True
28. 28.🔭 Which of these reflects light poorly? (a) aluminium foil (b) a mirror (c) a shiny steel plate (d) black cloth
29. 29.True or false: a magnet is not needed for the periscope. (a) True (b) False
30. 30.🧺 Three of these are needed for the periscope. Which one is NOT needed? (a) an empty juice carton (b) two small mirrors (c) a pencil (d) a magnet
31. 31.🛟 Who should cut the holes in the juice carton? (a) a friend who is running (b) a grown-up (c) the youngest child (d) nobody needs to
32. 32.🔭 Does a dull brick reflect light well or poorly? (a) reflects light well (b) reflects light poorly
33. 33.⚖️ Fair test — does the angle of the mirrors change how clearly you see? Which of these is kept the same? (a) how clear the view is (b) the same carton (c) the angle of the mirrors
34. 34.🔭 Does a mirror reflect light well or poorly? (a) reflects light well (b) reflects light poorly
35. 35.🔭 Which of these reflects light poorly? (a) a dull brick (b) aluminium foil (c) a shiny steel plate (d) a mirror
36. 36.True or false: vinegar is not needed for the periscope. (a) False (b) True
37. 37.🔭 Does still clear water reflect light well or poorly? (a) reflects light well (b) reflects light poorly
38. 38.True or false: yeast is not needed for the periscope. (a) False (b) True
39. 39.🧺 Three of these are needed for the periscope. Which one is NOT needed? (a) two small mirrors (b) an empty juice carton (c) a battery cell (d) sticky tape
40. 40.🔭 Which of these reflects light poorly? (a) a mirror (b) a rough wooden board (c) a shiny steel plate (d) still clear water

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