Periscope STEM Project Worksheet

Science experiments lesson 28: Mirror periscope · Set 584 · 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.🔭 Does aluminium foil reflect light well or poorly? (a) reflects light well (b) reflects light poorly
2. 2.🔮 Predict: you hold a written word up to a mirror. The letters look ___. (a) upside down only (b) flipped left to right (c) much bigger (d) in colour
3. 3.🔭 Which of these reflects light poorly? (a) aluminium foil (b) a mirror (c) black cloth (d) a shiny steel plate
4. 4.🛟 Which mirrors are safest for a children’s periscope? (a) plastic safety mirrors (b) big wall mirrors (c) loose glass panes (d) broken glass bits
5. 5.🔍 Which is the odd one out? (a) still clear water (b) a mirror (c) a dull brick (d) aluminium foil
6. 6.🔍 Which is the odd one out? (a) dark soil (b) black cloth (c) a rough wooden board (d) aluminium foil
7. 7.🔭 Which of these reflects light poorly? (a) a mirror (b) still clear water (c) a dull brick (d) a shiny steel plate
8. 8.🧺 Three of these are needed for the periscope. Which one is NOT needed? (a) two small mirrors (b) yeast (c) an empty juice carton (d) sticky tape
9. 9.🧺 Which of these is not needed for the periscope? (a) an empty juice carton (b) a ruler (c) a magnet (d) two small mirrors
10. 10.True or false: a battery cell is not needed for the periscope. (a) False (b) True
11. 11.True or false: dark soil reflects light well. (a) True (b) False
12. 12.⚖️ 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 mirrors (b) the object we look at (c) the angle of the mirrors (d) the same carton
13. 13.🔭 Who uses a periscope to look above the water? (a) a pilot in a plane (b) a baker (c) a submarine crew (d) a farmer
14. 14.🔭 How many mirrors does a simple periscope use?
15. 15.🔍 Which is the odd one out? (a) dark soil (b) a shiny steel plate (c) a rough wooden board (d) black cloth
16. 16.🧺 Do we need two small mirrors for the periscope? (a) not needed (b) needed
17. 17.🔭 Which of these reflects light well? (a) still clear water (b) black cloth (c) dark soil (d) a dull brick
18. 18.🔭 Why must the two mirrors face each other and be parallel? (a) so it can float (b) to make it heavy (c) so it looks shiny (d) so light reaches the eye
19. 19.🧺 Which of these is not needed for the periscope? (a) two small mirrors (b) a pencil (c) turmeric powder (d) a ruler
20. 20.🧺 Three of these are needed for the periscope. Which one is NOT needed? (a) a pencil (b) vinegar (c) two small mirrors (d) an empty juice carton
21. 21.⚖️ 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
22. 22.⚖️ 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
23. 23.True or false: dark soil reflects light poorly. (a) False (b) True
24. 24.🔭 What does a periscope let you do? (a) see in the dark (b) see germs (c) see over a wall (d) hear far sounds
25. 25.🔍 Which is the odd one out? (a) still clear water (b) dark soil (c) black cloth (d) a rough wooden board
26. 26.True or false: yeast is not needed for the periscope. (a) True (b) False
27. 27.⚖️ Fair test — does the angle of the mirrors change how clearly you see? True or false: the same mirrors is kept the same. (a) True (b) False
28. 28.🧺 Which of these is not needed for the periscope? (a) a ruler (b) a pencil (c) yeast (d) sticky tape
29. 29.⚖️ Fair test — does the angle of the mirrors change how clearly you see? True or false: the same light is the one thing we change. (a) False (b) True
30. 30.⚖️ Fair test — does the angle of the mirrors change how clearly you see? True or false: the same mirrors is what we measure. (a) False (b) True
31. 31.🧺 Which of these is needed for the periscope? (a) a pencil (b) a battery cell (c) turmeric powder (d) yeast
32. 32.🧺 Three of these are needed for the periscope. Which one is NOT needed? (a) a ruler (b) an empty juice carton (c) a magnet (d) a pencil
33. 33.🔭 Which of these reflects light well? (a) a shiny steel plate (b) a dull brick (c) black cloth (d) dark soil
34. 34.⚖️ 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) True (b) False
35. 35.🧺 Three of these are needed for the periscope. Which one is NOT needed? (a) a battery cell (b) sticky tape (c) two small mirrors (d) an empty juice carton
36. 36.🧺 Do we need a battery cell for the periscope? (a) needed (b) not needed
37. 37.True or false: a shiny steel plate reflects light poorly. (a) True (b) False
38. 38.🛟 Who should cut the holes in the juice carton? (a) the youngest child (b) nobody needs to (c) a grown-up (d) a friend who is running
39. 39.True or false: vinegar is needed for the periscope. (a) False (b) True
40. 40.🧺 Which of these is needed for the periscope? (a) a balloon (b) yeast (c) turmeric powder (d) an empty juice carton

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