Periscope STEM Project Worksheet

Science experiments lesson 28: Mirror periscope · Set 811 · 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 cover the top mirror with paper. What do you see? (a) only darkness (b) two pictures (c) a rainbow (d) a brighter view
2. 2.True or false: dark soil reflects light poorly. (a) False (b) True
3. 3.🔭 What does a periscope let you do? (a) see over a wall (b) see in the dark (c) hear far sounds (d) see germs
4. 4.🧺 Do we need turmeric powder for the periscope? (a) needed (b) not needed
5. 5.🔭 Which of these reflects light well? (a) a rough wooden board (b) black cloth (c) still clear water (d) a dull brick
6. 6.⚖️ Fair test — does the angle of the mirrors change how clearly you see? True or false: the same carton is kept the same. (a) True (b) False
7. 7.🔭 Does still clear water reflect light well or poorly? (a) reflects light well (b) reflects light poorly
8. 8.🔭 Does aluminium foil reflect light well or poorly? (a) reflects light well (b) reflects light poorly
9. 9.True or false: sticky tape is not needed for the periscope. (a) True (b) False
10. 10.🧺 Three of these are needed for the periscope. Which one is NOT needed? (a) two small mirrors (b) a ruler (c) a pencil (d) a battery cell
11. 11.⚖️ 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
12. 12.🔮 Predict: you hold a written word up to a mirror. The letters look ___. (a) flipped left to right (b) much bigger (c) upside down only (d) in colour
13. 13.True or false: vinegar is needed for the periscope. (a) False (b) True
14. 14.⚖️ Fair test — does the angle of the mirrors change how clearly you see? What do we do with “the same mirrors”? (a) we keep it the same (b) we change it (c) we measure it
15. 15.⚖️ 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) False (b) True
16. 16.🔭 How many mirrors does a simple periscope use?
17. 17.🔍 Which is the odd one out? (a) a rough wooden board (b) a dull brick (c) black cloth (d) a mirror
18. 18.🧺 Which of these is needed for the periscope? (a) turmeric powder (b) an empty juice carton (c) a balloon (d) a battery cell
19. 19.🧺 Which of these is needed for the periscope? (a) two small mirrors (b) turmeric powder (c) a magnet (d) yeast
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 carton (b) the same mirrors (c) the angle of the mirrors (d) how clear the view is
21. 21.⚖️ 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 measure it (c) we keep it the same
22. 22.True or false: an empty juice carton is not needed for the periscope. (a) True (b) False
23. 23.🔍 Which is the odd one out? (a) a dull brick (b) a rough wooden board (c) aluminium foil (d) black cloth
24. 24.🔭 How many times does light bounce off a mirror in a simple periscope?
25. 25.🧺 Do we need two small mirrors for the periscope? (a) needed (b) not needed
26. 26.⚖️ 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 keep it the same (c) we change it
27. 27.🔭 Which of these reflects light poorly? (a) aluminium foil (b) a shiny steel plate (c) a mirror (d) black cloth
28. 28.🔭 Does a dull brick reflect light well or poorly? (a) reflects light poorly (b) reflects light well
29. 29.True or false: a pencil is not needed for the periscope. (a) False (b) True
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.🧺 Which of these is not needed for the periscope? (a) sticky tape (b) an empty juice carton (c) a ruler (d) turmeric powder
32. 32.🧺 Three of these are needed for the periscope. Which one is NOT needed? (a) a pencil (b) sticky tape (c) an empty juice carton (d) yeast
33. 33.🧺 Do we need vinegar for the periscope? (a) not needed (b) needed
34. 34.🧺 Do we need a balloon for the periscope? (a) needed (b) not needed
35. 35.🛟 Which mirrors are safest for a children’s periscope? (a) big wall mirrors (b) broken glass bits (c) loose glass panes (d) plastic safety mirrors
36. 36.🔭 Which of these reflects light well? (a) dark soil (b) a rough wooden board (c) a mirror (d) black cloth
37. 37.🔭 At what angle are the mirrors set in a simple periscope? (a) 90 degrees (b) 45 degrees (c) 180 degrees (d) 10 degrees
38. 38.True or false: a rough wooden board reflects light poorly. (a) False (b) True
39. 39.⚖️ 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
40. 40.🔍 Which is the odd one out? (a) a mirror (b) a shiny steel plate (c) still clear water (d) black cloth

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