Periscope STEM Project Worksheet

Science experiments lesson 28: Mirror periscope · Set 638 · 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.🔭 Who uses a periscope to look above the water? (a) a baker (b) a submarine crew (c) a pilot in a plane (d) a farmer
2. 2.⚖️ Fair test — does the angle of the mirrors change how clearly you see? True or false: the angle of the mirrors is the one thing we change. (a) True (b) False
3. 3.🧺 Which of these is needed for the periscope? (a) a balloon (b) a ruler (c) a battery cell (d) yeast
4. 4.🔭 How many mirrors does a simple periscope use?
5. 5.🧺 Do we need vinegar for the periscope? (a) needed (b) not needed
6. 6.🔍 Which is the odd one out? (a) dark soil (b) black cloth (c) a dull brick (d) a shiny steel plate
7. 7.True or false: a dull brick reflects light poorly. (a) False (b) True
8. 8.🔮 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
9. 9.🔮 Predict: you hold a written word up to a mirror. The letters look ___. (a) in colour (b) flipped left to right (c) much bigger (d) upside down only
10. 10.🔭 Which of these reflects light poorly? (a) black cloth (b) a shiny steel plate (c) still clear water (d) a mirror
11. 11.True or false: turmeric powder is not needed for the periscope. (a) True (b) False
12. 12.⚖️ Fair test — does the angle of the mirrors change how clearly you see? True or false: the object we look at is the one thing we change. (a) True (b) False
13. 13.🧺 Three of these are needed for the periscope. Which one is NOT needed? (a) a ruler (b) a pencil (c) a battery cell (d) an empty juice carton
14. 14.🔭 At what angle are the mirrors set in a simple periscope? (a) 10 degrees (b) 180 degrees (c) 90 degrees (d) 45 degrees
15. 15.🔭 Does dark soil reflect light well or poorly? (a) reflects light well (b) reflects light poorly
16. 16.True or false: a ruler is needed for the periscope. (a) False (b) True
17. 17.🔭 Which of these reflects light well? (a) black cloth (b) a dull brick (c) still clear water (d) a rough wooden board
18. 18.⚖️ 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 measure it (b) we keep it the same (c) we change it
19. 19.🔍 Which is the odd one out? (a) a shiny steel plate (b) still clear water (c) black cloth (d) aluminium foil
20. 20.🧺 Which of these is not needed for the periscope? (a) an empty juice carton (b) two small mirrors (c) a battery cell (d) a pencil
21. 21.⚖️ Fair test — does the angle of the mirrors change how clearly you see? Which of these is what we measure? (a) the same light (b) the same carton (c) how clear the view is (d) the angle of the mirrors
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.🔭 What does a periscope let you do? (a) see germs (b) see in the dark (c) hear far sounds (d) see over a wall
24. 24.🔭 Does a mirror reflect light well or poorly? (a) reflects light poorly (b) reflects light well
25. 25.⚖️ 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 keep it the same (b) we measure it (c) we change it
26. 26.🔮 Predict: you cover the top mirror with paper. What do you see? (a) a rainbow (b) a brighter view (c) only darkness (d) two pictures
27. 27.⚖️ 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 keep it the same (c) we measure it
28. 28.🧺 Do we need sticky tape for the periscope? (a) not needed (b) needed
29. 29.🧺 Do we need a battery cell for the periscope? (a) needed (b) not needed
30. 30.🔭 Does a shiny steel plate reflect light well or poorly? (a) reflects light well (b) reflects light poorly
31. 31.🧺 Three of these are needed for the periscope. Which one is NOT needed? (a) two small mirrors (b) an empty juice carton (c) a ruler (d) a magnet
32. 32.🔍 Which is the odd one out? (a) a dull brick (b) still clear water (c) a shiny steel plate (d) a mirror
33. 33.🧺 Which of these is needed for the periscope? (a) yeast (b) a balloon (c) sticky tape (d) a magnet
34. 34.🧺 Which of these is needed for the periscope? (a) two small mirrors (b) a magnet (c) a battery cell (d) yeast
35. 35.🔭 Does aluminium foil reflect light well or poorly? (a) reflects light poorly (b) reflects light well
36. 36.🧺 Do we need turmeric powder for the periscope? (a) needed (b) not needed
37. 37.🧺 Do we need an empty juice carton for the periscope? (a) needed (b) not needed
38. 38.⚖️ Fair test — does the angle of the mirrors change how clearly you see? Which of these is kept the same? (a) the same light (b) the angle of the mirrors (c) how clear the view is
39. 39.🧺 Do we need two small mirrors for the periscope? (a) needed (b) not needed
40. 40.True or false: still clear water reflects light well. (a) True (b) False

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