Periscope STEM Project Worksheet

Science experiments lesson 28: Mirror periscope · Set 347 · 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.⚖️ 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 change it (c) we measure it
2. 2.🛟 You must never point a periscope or a mirror at ___. (a) a tree (b) the Sun (c) a friend’s toy (d) a wall
3. 3.True or false: a rough wooden board reflects light poorly. (a) True (b) False
4. 4.🔭 At what angle are the mirrors set in a simple periscope? (a) 90 degrees (b) 180 degrees (c) 45 degrees (d) 10 degrees
5. 5.⚖️ Fair test — does the angle of the mirrors change how clearly you see? True or false: the same mirrors is kept the same. (a) False (b) True
6. 6.⚖️ 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 object we look at
7. 7.🔭 Which of these reflects light poorly? (a) dark soil (b) a shiny steel plate (c) still clear water (d) a mirror
8. 8.🔭 Which of these reflects light well? (a) black cloth (b) a dull brick (c) a shiny steel plate (d) dark soil
9. 9.🧺 Which of these is not needed for the periscope? (a) a battery cell (b) a pencil (c) sticky tape (d) a ruler
10. 10.🧺 Which of these is needed for the periscope? (a) a pencil (b) yeast (c) a balloon (d) turmeric powder
11. 11.🔭 Who uses a periscope to look above the water? (a) a submarine crew (b) a farmer (c) a baker (d) a pilot in a plane
12. 12.🧺 Three of these are needed for the periscope. Which one is NOT needed? (a) sticky tape (b) a ruler (c) two small mirrors (d) a battery cell
13. 13.⚖️ 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
14. 14.⚖️ Fair test — does the angle of the mirrors change how clearly you see? Which of these is the one thing we change? (a) the angle of the mirrors (b) the same light (c) the same carton (d) the same mirrors
15. 15.🔭 Does a shiny steel plate reflect light well or poorly? (a) reflects light well (b) reflects light poorly
16. 16.⚖️ 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 change it (c) we keep it the same
17. 17.🔍 Which is the odd one out? (a) a mirror (b) a shiny steel plate (c) still clear water (d) a rough wooden board
18. 18.🧺 Three of these are needed for the periscope. Which one is NOT needed? (a) sticky tape (b) a ruler (c) a magnet (d) an empty juice carton
19. 19.🔭 How many times does light bounce off a mirror in a simple periscope?
20. 20.🧺 Three of these are needed for the periscope. Which one is NOT needed? (a) sticky tape (b) two small mirrors (c) a ruler (d) turmeric powder
21. 21.🔭 Which of these reflects light well? (a) dark soil (b) a dull brick (c) black cloth (d) still clear water
22. 22.🧺 Do we need a balloon for the periscope? (a) not needed (b) needed
23. 23.🔭 What does a periscope let you do? (a) see germs (b) see over a wall (c) hear far sounds (d) see in the dark
24. 24.🧺 Do we need a magnet for the periscope? (a) needed (b) not needed
25. 25.🔭 Which of these reflects light well? (a) a dull brick (b) a rough wooden board (c) a mirror (d) dark soil
26. 26.🔍 Which is the odd one out? (a) a shiny steel plate (b) still clear water (c) a dull brick (d) a mirror
27. 27.🧺 Do we need a pencil for the periscope? (a) not needed (b) needed
28. 28.🧺 Three of these are needed for the periscope. Which one is NOT needed? (a) a ruler (b) two small mirrors (c) yeast (d) a pencil
29. 29.🧺 Which of these is not needed for the periscope? (a) sticky tape (b) two small mirrors (c) turmeric powder (d) a pencil
30. 30.True or false: sticky tape is not needed for the periscope. (a) True (b) False
31. 31.True or false: dark soil reflects light poorly. (a) False (b) True
32. 32.🔭 How many mirrors does a simple periscope use?
33. 33.🔮 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
34. 34.⚖️ Fair test — does the angle of the mirrors change how clearly you see? True or false: the same light is kept the same. (a) True (b) False
35. 35.🛟 Which mirrors are safest for a children’s periscope? (a) plastic safety mirrors (b) broken glass bits (c) big wall mirrors (d) loose glass panes
36. 36.⚖️ 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) True (b) False
37. 37.True or false: a mirror reflects light well. (a) False (b) True
38. 38.🔭 Which of these reflects light poorly? (a) a mirror (b) still clear water (c) aluminium foil (d) black cloth
39. 39.📘 Light bouncing off a mirror is called ___. (a) evaporation (b) refraction (c) reflection (d) magnetism
40. 40.🧺 Which of these is needed for the periscope? (a) a balloon (b) an empty juice carton (c) a battery cell (d) vinegar

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