Periscope STEM Project Worksheet

Science experiments lesson 28: Mirror periscope · Set 115 · 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.🔍 Which is the odd one out? (a) a shiny steel plate (b) dark soil (c) a dull brick (d) a rough wooden board
2. 2.🧺 Do we need a magnet for the periscope? (a) not needed (b) needed
3. 3.🧺 Do we need yeast for the periscope? (a) needed (b) not needed
4. 4.🔭 Does a rough wooden board reflect light well or poorly? (a) reflects light well (b) reflects light poorly
5. 5.🛟 Which mirrors are safest for a children’s periscope? (a) loose glass panes (b) broken glass bits (c) plastic safety mirrors (d) big wall mirrors
6. 6.🧺 Which of these is needed for the periscope? (a) vinegar (b) a magnet (c) an empty juice carton (d) turmeric powder
7. 7.🔭 How many times does light bounce off a mirror in a simple periscope?
8. 8.⚖️ Fair test — does the angle of the mirrors change how clearly you see? True or false: the object we look at is kept the same. (a) False (b) True
9. 9.🔭 Which of these reflects light well? (a) a rough wooden board (b) black cloth (c) a dull brick (d) a shiny steel plate
10. 10.🔭 What does a periscope let you do? (a) see in the dark (b) hear far sounds (c) see over a wall (d) see germs
11. 11.True or false: two small mirrors is not needed for the periscope. (a) True (b) False
12. 12.🧺 Which of these is needed for the periscope? (a) yeast (b) vinegar (c) a balloon (d) sticky tape
13. 13.🔭 Does a mirror reflect light well or poorly? (a) reflects light poorly (b) reflects light well
14. 14.🔭 At what angle are the mirrors set in a simple periscope? (a) 45 degrees (b) 10 degrees (c) 90 degrees (d) 180 degrees
15. 15.🔭 Which of these reflects light well? (a) a rough wooden board (b) dark soil (c) black cloth (d) still clear water
16. 16.🔮 Predict: you cover the top mirror with paper. What do you see? (a) a rainbow (b) only darkness (c) a brighter view (d) two pictures
17. 17.🔍 Which is the odd one out? (a) black cloth (b) still clear water (c) a rough wooden board (d) dark soil
18. 18.🧺 Do we need a balloon for the periscope? (a) not needed (b) needed
19. 19.🧺 Three of these are needed for the periscope. Which one is NOT needed? (a) a ruler (b) a pencil (c) an empty juice carton (d) a battery cell
20. 20.⚖️ 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 mirrors (b) the same carton (c) the same light (d) the angle of the mirrors
21. 21.🧺 Do we need an empty juice carton for the periscope? (a) needed (b) not needed
22. 22.🧺 Which of these is not needed for the periscope? (a) a ruler (b) a battery cell (c) an empty juice carton (d) sticky tape
23. 23.⚖️ 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
24. 24.True or false: black cloth reflects light well. (a) True (b) False
25. 25.🧺 Three of these are needed for the periscope. Which one is NOT needed? (a) a balloon (b) an empty juice carton (c) a ruler (d) sticky tape
26. 26.🧺 Which of these is not needed for the periscope? (a) a pencil (b) an empty juice carton (c) a balloon (d) two small mirrors
27. 27.🔍 Which is the odd one out? (a) a rough wooden board (b) aluminium foil (c) a dull brick (d) black cloth
28. 28.⚖️ 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
29. 29.🔭 Does black cloth reflect light well or poorly? (a) reflects light well (b) reflects light poorly
30. 30.⚖️ 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 mirrors (c) how clear the view is
31. 31.⚖️ Fair test — does the angle of the mirrors change how clearly you see? Which of these is what we measure? (a) the object we look at (b) the same mirrors (c) the same light (d) how clear the view is
32. 32.True or false: two small mirrors is needed for the periscope. (a) True (b) False
33. 33.🔭 Which of these reflects light poorly? (a) a mirror (b) a shiny steel plate (c) aluminium foil (d) dark soil
34. 34.🔭 Does aluminium foil reflect light well or poorly? (a) reflects light well (b) reflects light poorly
35. 35.True or false: aluminium foil reflects light well. (a) True (b) False
36. 36.⚖️ 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 same light (c) the angle of the mirrors
37. 37.🧺 Which of these is needed for the periscope? (a) a battery cell (b) turmeric powder (c) two small mirrors (d) a magnet
38. 38.🧺 Do we need a battery cell for the periscope? (a) not needed (b) needed
39. 39.🧺 Three of these are needed for the periscope. Which one is NOT needed? (a) a ruler (b) turmeric powder (c) two small mirrors (d) an empty juice carton
40. 40.🧺 Three of these are needed for the periscope. Which one is NOT needed? (a) sticky tape (b) yeast (c) a pencil (d) a ruler

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