Periscope STEM Project Worksheet

Science experiments lesson 28: Mirror periscope · Set 258 · 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 a shiny steel plate reflect light well or poorly? (a) reflects light poorly (b) reflects light well
2. 2.🔭 Which of these reflects light well? (a) dark soil (b) a rough wooden board (c) still clear water (d) a dull brick
3. 3.⚖️ 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
4. 4.🧺 Three of these are needed for the periscope. Which one is NOT needed? (a) sticky tape (b) a ruler (c) yeast (d) an empty juice carton
5. 5.True or false: a mirror reflects light well. (a) False (b) True
6. 6.True or false: a pencil is needed for the periscope. (a) False (b) True
7. 7.🧺 Three of these are needed for the periscope. Which one is NOT needed? (a) a battery cell (b) an empty juice carton (c) a pencil (d) a ruler
8. 8.True or false: an empty juice carton is not needed for the periscope. (a) False (b) True
9. 9.⚖️ 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 change it (c) we keep it the same
10. 10.True or false: a pencil is not needed for the periscope. (a) True (b) False
11. 11.⚖️ Fair test — does the angle of the mirrors change how clearly you see? What do we do with “the same light”? (a) we change it (b) we measure it (c) we keep it the same
12. 12.⚖️ 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
13. 13.🧺 Which of these is not needed for the periscope? (a) an empty juice carton (b) a balloon (c) a pencil (d) sticky tape
14. 14.🔭 At what angle are the mirrors set in a simple periscope? (a) 45 degrees (b) 90 degrees (c) 180 degrees (d) 10 degrees
15. 15.⚖️ Fair test — does the angle of the mirrors change how clearly you see? Which of these is kept the same? (a) the angle of the mirrors (b) how clear the view is (c) the same carton
16. 16.True or false: turmeric powder is not needed for the periscope. (a) False (b) True
17. 17.🧺 Three of these are needed for the periscope. Which one is NOT needed? (a) an empty juice carton (b) vinegar (c) two small mirrors (d) sticky tape
18. 18.🔭 Which of these reflects light well? (a) a rough wooden board (b) dark soil (c) black cloth (d) aluminium foil
19. 19.🧺 Which of these is needed for the periscope? (a) turmeric powder (b) a balloon (c) vinegar (d) two small mirrors
20. 20.🧺 Do we need a ruler for the periscope? (a) not needed (b) needed
21. 21.🧺 Three of these are needed for the periscope. Which one is NOT needed? (a) sticky tape (b) a pencil (c) turmeric powder (d) a ruler
22. 22.🔮 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
23. 23.🧺 Do we need two small mirrors for the periscope? (a) not needed (b) needed
24. 24.🔭 How many times does light bounce off a mirror in a simple periscope?
25. 25.⚖️ 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 light (b) how clear the view is (c) the angle of the mirrors (d) the same carton
26. 26.🔮 Predict: you hold a written word up to a mirror. The letters look ___. (a) in colour (b) upside down only (c) much bigger (d) flipped left to right
27. 27.True or false: dark soil reflects light poorly. (a) False (b) True
28. 28.True or false: vinegar is needed for the periscope. (a) False (b) True
29. 29.⚖️ 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 angle of the mirrors (c) the same light
30. 30.🧺 Do we need a battery cell for the periscope? (a) not needed (b) needed
31. 31.⚖️ 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 change it (b) we keep it the same (c) we measure it
32. 32.🛟 Who should cut the holes in the juice carton? (a) the youngest child (b) a grown-up (c) nobody needs to (d) a friend who is running
33. 33.⚖️ Fair test — does the angle of the mirrors change how clearly you see? True or false: the same carton is the one thing we change. (a) False (b) True
34. 34.🔭 Does dark soil reflect light well or poorly? (a) reflects light poorly (b) reflects light well
35. 35.🛟 Which mirrors are safest for a children’s periscope? (a) broken glass bits (b) big wall mirrors (c) loose glass panes (d) plastic safety mirrors
36. 36.⚖️ Fair test — does the angle of the mirrors change how clearly you see? What do we do with “the same mirrors”? (a) we measure it (b) we keep it the same (c) we change it
37. 37.🧺 Do we need sticky tape for the periscope? (a) not needed (b) needed
38. 38.True or false: still clear water reflects light well. (a) False (b) True
39. 39.🔭 Does a rough wooden board reflect light well or poorly? (a) reflects light poorly (b) reflects light well
40. 40.True or false: a shiny steel plate reflects light poorly. (a) False (b) True

Free science experiments lessons, practice and worksheets at talentjr.in/science-experiments-for-kids