Periscope STEM Project Worksheet

Science experiments lesson 28: Mirror periscope · Set 377 · 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.🔭 How many times does light bounce off a mirror in a simple periscope?
2. 2.🔭 At what angle are the mirrors set in a simple periscope? (a) 45 degrees (b) 10 degrees (c) 90 degrees (d) 180 degrees
3. 3.🔭 Which of these reflects light well? (a) a dull brick (b) dark soil (c) a mirror (d) black cloth
4. 4.🧺 Three of these are needed for the periscope. Which one is NOT needed? (a) sticky tape (b) a magnet (c) a ruler (d) a pencil
5. 5.🛟 You must never point a periscope or a mirror at ___. (a) a wall (b) a friend’s toy (c) the Sun (d) a tree
6. 6.⚖️ 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
7. 7.⚖️ 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) False (b) True
8. 8.True or false: a rough wooden board reflects light well. (a) False (b) True
9. 9.⚖️ 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 change it (c) we measure it
10. 10.🔭 Which of these reflects light well? (a) black cloth (b) a dull brick (c) dark soil (d) a shiny steel plate
11. 11.🔍 Which is the odd one out? (a) a dull brick (b) still clear water (c) a rough wooden board (d) black cloth
12. 12.🧺 Do we need two small mirrors for the periscope? (a) not needed (b) needed
13. 13.⚖️ 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
14. 14.🔭 Does a shiny steel plate reflect light well or poorly? (a) reflects light poorly (b) reflects light well
15. 15.⚖️ 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) the angle of the mirrors (c) the same mirrors (d) how clear the view is
16. 16.⚖️ Fair test — does the angle of the mirrors change how clearly you see? Which of these is what we measure? (a) the angle of the mirrors (b) how clear the view is (c) the same carton (d) the same mirrors
17. 17.⚖️ Fair test — does the angle of the mirrors change how clearly you see? What do we do with “the same carton”? (a) we keep it the same (b) we measure it (c) we change it
18. 18.🧺 Which of these is not needed for the periscope? (a) a ruler (b) two small mirrors (c) an empty juice carton (d) a battery cell
19. 19.🧺 Three of these are needed for the periscope. Which one is NOT needed? (a) a ruler (b) an empty juice carton (c) turmeric powder (d) two small mirrors
20. 20.🧺 Which of these is needed for the periscope? (a) a battery cell (b) a balloon (c) turmeric powder (d) a pencil
21. 21.🔭 Does still clear water reflect light well or poorly? (a) reflects light poorly (b) reflects light well
22. 22.⚖️ 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
23. 23.True or false: still clear water reflects light well. (a) True (b) False
24. 24.🧺 Which of these is needed for the periscope? (a) a balloon (b) turmeric powder (c) yeast (d) two small mirrors
25. 25.🧺 Do we need a pencil for the periscope? (a) not needed (b) needed
26. 26.🧺 Do we need yeast for the periscope? (a) needed (b) not needed
27. 27.🔭 Which of these reflects light well? (a) still clear water (b) dark soil (c) black cloth (d) a dull brick
28. 28.🔭 Does a rough wooden board reflect light well or poorly? (a) reflects light well (b) reflects light poorly
29. 29.True or false: an empty juice carton is not needed for the periscope. (a) False (b) True
30. 30.🔮 Predict: you cover the top mirror with paper. What do you see? (a) a rainbow (b) a brighter view (c) two pictures (d) only darkness
31. 31.🧺 Which of these is needed for the periscope? (a) a magnet (b) a balloon (c) an empty juice carton (d) turmeric powder
32. 32.True or false: a ruler is not needed for the periscope. (a) True (b) False
33. 33.🔍 Which is the odd one out? (a) dark soil (b) a rough wooden board (c) a dull brick (d) a shiny steel plate
34. 34.True or false: aluminium foil reflects light poorly. (a) False (b) True
35. 35.🧺 Three of these are needed for the periscope. Which one is NOT needed? (a) an empty juice carton (b) two small mirrors (c) yeast (d) sticky tape
36. 36.True or false: a dull brick reflects light well. (a) True (b) False
37. 37.True or false: sticky tape is not needed for the periscope. (a) False (b) True
38. 38.🔭 Which of these reflects light poorly? (a) a dull brick (b) a shiny steel plate (c) a mirror (d) aluminium foil
39. 39.⚖️ 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) the same carton (c) how clear the view is
40. 40.⚖️ 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

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