Periscope STEM Project Worksheet

Science experiments lesson 28: Mirror periscope · Set 51 · 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.🧺 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) a pencil
2. 2.🔭 Does dark soil reflect light well or poorly? (a) reflects light well (b) reflects light poorly
3. 3.⚖️ 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
4. 4.⚖️ 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 carton
5. 5.⚖️ 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) how clear the view is (c) the angle of the mirrors
6. 6.🛟 You must never point a periscope or a mirror at ___. (a) a wall (b) a tree (c) the Sun (d) a friend’s toy
7. 7.⚖️ 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) False (b) True
8. 8.🧺 Three of these are needed for the periscope. Which one is NOT needed? (a) a magnet (b) a ruler (c) an empty juice carton (d) a pencil
9. 9.True or false: turmeric powder is needed for the periscope. (a) True (b) False
10. 10.True or false: two small mirrors 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 carton”? (a) we change it (b) we keep it the same (c) we measure it
12. 12.🧺 Do we need turmeric powder for the periscope? (a) needed (b) not needed
13. 13.🔭 Which of these reflects light poorly? (a) a rough wooden board (b) a shiny steel plate (c) a mirror (d) still clear water
14. 14.🔭 Which of these reflects light well? (a) a dull brick (b) black cloth (c) aluminium foil (d) a rough wooden board
15. 15.🧺 Which of these is needed for the periscope? (a) a balloon (b) vinegar (c) a battery cell (d) an empty juice carton
16. 16.🧺 Three of these are needed for the periscope. Which one is NOT needed? (a) two small mirrors (b) a balloon (c) sticky tape (d) a ruler
17. 17.📘 Light bouncing off a mirror is called ___. (a) magnetism (b) refraction (c) reflection (d) evaporation
18. 18.⚖️ Fair test — does the angle of the mirrors change how clearly you see? True or false: the same carton is kept the same. (a) False (b) True
19. 19.🔮 Predict: you cover the top mirror with paper. What do you see? (a) a brighter view (b) two pictures (c) only darkness (d) a rainbow
20. 20.🔭 Does still clear water reflect light well or poorly? (a) reflects light well (b) reflects light poorly
21. 21.⚖️ 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 measure it (c) we keep it the same
22. 22.🔭 Does aluminium foil reflect light well or poorly? (a) reflects light poorly (b) reflects light well
23. 23.🔭 Which of these reflects light well? (a) black cloth (b) dark soil (c) a rough wooden board (d) still clear water
24. 24.🧺 Do we need a pencil for the periscope? (a) not needed (b) needed
25. 25.⚖️ 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 measure it (b) we change it (c) we keep it the same
26. 26.⚖️ Fair test — does the angle of the mirrors change how clearly you see? Which of these is the one thing we change? (a) how clear the view is (b) the same carton (c) the angle of the mirrors (d) the same mirrors
27. 27.True or false: a mirror reflects light poorly. (a) True (b) False
28. 28.🔭 How many times does light bounce off a mirror in a simple periscope?
29. 29.True or false: a shiny steel plate reflects light poorly. (a) True (b) False
30. 30.True or false: a balloon is not needed for the periscope. (a) True (b) False
31. 31.🔭 Which of these reflects light well? (a) a mirror (b) a rough wooden board (c) black cloth (d) a dull brick
32. 32.⚖️ 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 measure it (b) we change it (c) we keep it the same
33. 33.🧺 Three of these are needed for the periscope. Which one is NOT needed? (a) a ruler (b) a pencil (c) a battery cell (d) two small mirrors
34. 34.⚖️ 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
35. 35.⚖️ 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) True (b) False
36. 36.🧺 Which of these is not needed for the periscope? (a) vinegar (b) a ruler (c) two small mirrors (d) an empty juice carton
37. 37.⚖️ 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) False (b) True
38. 38.⚖️ Fair test — does the angle of the mirrors change how clearly you see? True or false: how clear the view is is the one thing we change. (a) True (b) False
39. 39.🧺 Do we need a balloon for the periscope? (a) not needed (b) needed
40. 40.True or false: dark soil reflects light well. (a) True (b) False

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