Periscope STEM Project Worksheet

Science experiments lesson 28: Mirror periscope · Set 812 · 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.True or false: a mirror reflects light well. (a) False (b) True
2. 2.⚖️ 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) how clear the view is (c) the angle of the mirrors (d) the same carton
3. 3.🧺 Three of these are needed for the periscope. Which one is NOT needed? (a) a magnet (b) a pencil (c) a ruler (d) sticky tape
4. 4.🛟 Which mirrors are safest for a children’s periscope? (a) loose glass panes (b) plastic safety mirrors (c) big wall mirrors (d) broken glass bits
5. 5.🧺 Three of these are needed for the periscope. Which one is NOT needed? (a) a balloon (b) sticky tape (c) two small mirrors (d) an empty juice carton
6. 6.🧺 Three of these are needed for the periscope. Which one is NOT needed? (a) two small mirrors (b) turmeric powder (c) an empty juice carton (d) sticky tape
7. 7.⚖️ 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
8. 8.🔭 At what angle are the mirrors set in a simple periscope? (a) 180 degrees (b) 90 degrees (c) 10 degrees (d) 45 degrees
9. 9.🔭 Which of these reflects light well? (a) dark soil (b) a rough wooden board (c) a dull brick (d) a mirror
10. 10.🔭 How many mirrors does a simple periscope use?
11. 11.🔮 Predict: you hold a written word up to a mirror. The letters look ___. (a) much bigger (b) flipped left to right (c) upside down only (d) in colour
12. 12.🧺 Which of these is needed for the periscope? (a) vinegar (b) sticky tape (c) a magnet (d) yeast
13. 13.⚖️ 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
14. 14.True or false: aluminium foil reflects light poorly. (a) False (b) True
15. 15.True or false: still clear water reflects light poorly. (a) True (b) False
16. 16.True or false: a ruler is needed for the periscope. (a) True (b) False
17. 17.True or false: a rough wooden board reflects light poorly. (a) True (b) False
18. 18.🔭 What does a periscope let you do? (a) see germs (b) see over a wall (c) see in the dark (d) hear far sounds
19. 19.🔭 Which of these reflects light poorly? (a) a shiny steel plate (b) still clear water (c) aluminium foil (d) a dull brick
20. 20.🧺 Which of these is needed for the periscope? (a) yeast (b) vinegar (c) an empty juice carton (d) a balloon
21. 21.🧺 Three of these are needed for the periscope. Which one is NOT needed? (a) two small mirrors (b) sticky tape (c) an empty juice carton (d) a battery cell
22. 22.🧺 Do we need an empty juice carton for the periscope? (a) needed (b) not needed
23. 23.⚖️ 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
24. 24.📘 Light bouncing off a mirror is called ___. (a) evaporation (b) refraction (c) reflection (d) magnetism
25. 25.🔭 Which of these reflects light poorly? (a) aluminium foil (b) a mirror (c) dark soil (d) a shiny steel plate
26. 26.🔍 Which is the odd one out? (a) aluminium foil (b) a shiny steel plate (c) a mirror (d) a dull brick
27. 27.🔭 Does black cloth reflect light well or poorly? (a) reflects light poorly (b) reflects light well
28. 28.⚖️ Fair test — does the angle of the mirrors change how clearly you see? True or false: the same light is kept the same. (a) False (b) True
29. 29.🧺 Which of these is needed for the periscope? (a) turmeric powder (b) a magnet (c) two small mirrors (d) a balloon
30. 30.🛟 You must never point a periscope or a mirror at ___. (a) the Sun (b) a friend’s toy (c) a tree (d) a wall
31. 31.🧺 Three of these are needed for the periscope. Which one is NOT needed? (a) vinegar (b) sticky tape (c) an empty juice carton (d) two small mirrors
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 keep it the same (b) we change it (c) we measure it
33. 33.⚖️ Fair test — does the angle of the mirrors change how clearly you see? Which of these is what we measure? (a) how clear the view is (b) the same mirrors (c) the angle of the mirrors (d) the same carton
34. 34.🔮 Predict: you cover the top mirror with paper. What do you see? (a) only darkness (b) a brighter view (c) a rainbow (d) two pictures
35. 35.🔭 How many times does light bounce off a mirror in a simple periscope?
36. 36.🔭 Which of these reflects light well? (a) black cloth (b) a dull brick (c) a shiny steel plate (d) dark soil
37. 37.🧺 Do we need a ruler for the periscope? (a) needed (b) not needed
38. 38.True or false: black cloth reflects light well. (a) False (b) True
39. 39.🧺 Which of these is not needed for the periscope? (a) a pencil (b) sticky tape (c) two small mirrors (d) a battery cell
40. 40.🔭 Does aluminium foil reflect light well or poorly? (a) reflects light poorly (b) reflects light well

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