Periscope STEM Project Worksheet

Science experiments lesson 28: Mirror periscope · Set 223 · 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.🔮 Predict: you make the periscope tube twice as tall. You can see over ___. (a) nothing at all (b) the ground (c) taller walls (d) only short walls
2. 2.True or false: still clear water reflects light well. (a) True (b) False
3. 3.🧺 Do we need a balloon for the periscope? (a) not needed (b) needed
4. 4.True or false: a shiny steel plate reflects light well. (a) True (b) False
5. 5.🔭 What does a periscope let you do? (a) see in the dark (b) see over a wall (c) see germs (d) hear far sounds
6. 6.True or false: sticky tape is needed for the periscope. (a) True (b) False
7. 7.🔭 At what angle are the mirrors set in a simple periscope? (a) 180 degrees (b) 90 degrees (c) 45 degrees (d) 10 degrees
8. 8.🧺 Do we need a pencil for the periscope? (a) needed (b) not needed
9. 9.🛟 Which mirrors are safest for a children’s periscope? (a) big wall mirrors (b) plastic safety mirrors (c) loose glass panes (d) broken glass bits
10. 10.⚖️ 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
11. 11.True or false: an empty juice carton is needed for the periscope. (a) False (b) True
12. 12.🔭 Which of these reflects light poorly? (a) a shiny steel plate (b) dark soil (c) aluminium foil (d) still clear water
13. 13.⚖️ Fair test — does the angle of the mirrors change how clearly you see? True or false: the object we look at is what we measure. (a) True (b) False
14. 14.🔭 Does a mirror reflect light well or poorly? (a) reflects light poorly (b) reflects light well
15. 15.🔭 Does a dull brick reflect light well or poorly? (a) reflects light well (b) reflects light poorly
16. 16.🔍 Which is the odd one out? (a) a mirror (b) a shiny steel plate (c) black cloth (d) still clear water
17. 17.True or false: a dull brick reflects light well. (a) False (b) True
18. 18.🧺 Three of these are needed for the periscope. Which one is NOT needed? (a) yeast (b) two small mirrors (c) sticky tape (d) a ruler
19. 19.True or false: turmeric powder is not needed for the periscope. (a) False (b) True
20. 20.🔭 Which of these reflects light well? (a) a dull brick (b) dark soil (c) a mirror (d) a rough wooden board
21. 21.True or false: a pencil is not needed for the periscope. (a) True (b) False
22. 22.🧺 Do we need an empty juice carton for the periscope? (a) needed (b) not needed
23. 23.🧺 Three of these are needed for the periscope. Which one is NOT needed? (a) a ruler (b) a pencil (c) two small mirrors (d) a balloon
24. 24.🧺 Which of these is needed for the periscope? (a) yeast (b) a balloon (c) turmeric powder (d) a ruler
25. 25.🧺 Which of these is not needed for the periscope? (a) vinegar (b) sticky tape (c) a pencil (d) two small mirrors
26. 26.⚖️ 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 keep it the same (b) we change it (c) we measure it
27. 27.🧺 Do we need a battery cell for the periscope? (a) not needed (b) needed
28. 28.🔭 How many mirrors does a simple periscope use?
29. 29.⚖️ 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 change it (b) we keep it the same (c) we measure it
30. 30.🔭 Does a rough wooden board reflect light well or poorly? (a) reflects light well (b) reflects light poorly
31. 31.🔮 Predict: you cover the top mirror with paper. What do you see? (a) a brighter view (b) a rainbow (c) two pictures (d) only darkness
32. 32.🧺 Do we need a ruler for the periscope? (a) not needed (b) needed
33. 33.True or false: turmeric powder is needed for the periscope. (a) True (b) False
34. 34.🔭 Which of these reflects light poorly? (a) a rough wooden board (b) a mirror (c) still clear water (d) a shiny steel plate
35. 35.🔍 Which is the odd one out? (a) a dull brick (b) dark soil (c) a rough wooden board (d) aluminium foil
36. 36.🔭 Does a shiny steel plate reflect light well or poorly? (a) reflects light well (b) reflects light poorly
37. 37.🧺 Which of these is needed for the periscope? (a) turmeric powder (b) two small mirrors (c) a balloon (d) vinegar
38. 38.🔍 Which is the odd one out? (a) aluminium foil (b) a dull brick (c) a mirror (d) still clear water
39. 39.🔮 Predict: you hold a written word up to a mirror. The letters look ___. (a) in colour (b) much bigger (c) upside down only (d) flipped left to right
40. 40.⚖️ Fair test — does the angle of the mirrors change how clearly you see? True or false: the angle of the mirrors is kept the same. (a) False (b) True

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