Periscope STEM Project Worksheet

Science experiments lesson 28: Mirror periscope · Set 284 · 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 of these reflects light poorly? (a) aluminium foil (b) still clear water (c) a mirror (d) a dull brick
2. 2.🧺 Three of these are needed for the periscope. Which one is NOT needed? (a) an empty juice carton (b) yeast (c) a ruler (d) sticky tape
3. 3.🛟 Which mirrors are safest for a children’s periscope? (a) plastic safety mirrors (b) loose glass panes (c) big wall mirrors (d) broken glass bits
4. 4.🔍 Which is the odd one out? (a) a mirror (b) still clear water (c) aluminium foil (d) dark soil
5. 5.True or false: a balloon is not needed for the periscope. (a) True (b) False
6. 6.⚖️ Fair test — does the angle of the mirrors change how clearly you see? Which of these is kept the same? (a) the same carton (b) the angle of the mirrors (c) how clear the view is
7. 7.🧺 Do we need yeast for the periscope? (a) not needed (b) needed
8. 8.🧺 Three of these are needed for the periscope. Which one is NOT needed? (a) turmeric powder (b) a pencil (c) two small mirrors (d) an empty juice carton
9. 9.🔍 Which is the odd one out? (a) a dull brick (b) dark soil (c) a rough wooden board (d) a mirror
10. 10.🔭 Which of these reflects light well? (a) a dull brick (b) a mirror (c) dark soil (d) black cloth
11. 11.⚖️ 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 angle of the mirrors (c) the same carton (d) the object we look at
12. 12.🧺 Do we need a battery cell for the periscope? (a) not needed (b) needed
13. 13.📘 Light bouncing off a mirror is called ___. (a) reflection (b) magnetism (c) evaporation (d) refraction
14. 14.⚖️ 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
15. 15.True or false: an empty juice carton is not needed for the periscope. (a) True (b) False
16. 16.🔍 Which is the odd one out? (a) black cloth (b) a shiny steel plate (c) a rough wooden board (d) a dull brick
17. 17.⚖️ Fair test — does the angle of the mirrors change how clearly you see? Which of these is what we measure? (a) the same carton (b) the same mirrors (c) how clear the view is (d) the angle of the mirrors
18. 18.🧺 Three of these are needed for the periscope. Which one is NOT needed? (a) sticky tape (b) vinegar (c) a ruler (d) two small mirrors
19. 19.🧺 Three of these are needed for the periscope. Which one is NOT needed? (a) sticky tape (b) a balloon (c) a pencil (d) two small mirrors
20. 20.🔭 Which of these reflects light well? (a) dark soil (b) a dull brick (c) a rough wooden board (d) aluminium foil
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 keep it the same (b) we measure it (c) we change it
22. 22.⚖️ Fair test — does the angle of the mirrors change how clearly you see? True or false: the same carton is what we measure. (a) False (b) True
23. 23.⚖️ Fair test — does the angle of the mirrors change how clearly you see? True or false: the same light is the one thing we change. (a) True (b) False
24. 24.True or false: black cloth reflects light poorly. (a) True (b) False
25. 25.🧺 Which of these is needed for the periscope? (a) a balloon (b) vinegar (c) yeast (d) a pencil
26. 26.🔭 Does a shiny steel plate reflect light well or poorly? (a) reflects light well (b) reflects light poorly
27. 27.True or false: a shiny steel plate reflects light poorly. (a) False (b) True
28. 28.🔭 How many mirrors does a simple periscope use?
29. 29.True or false: turmeric powder is needed for the periscope. (a) False (b) True
30. 30.🔭 How many times does light bounce off a mirror in a simple periscope?
31. 31.🔭 Which of these reflects light poorly? (a) a shiny steel plate (b) black cloth (c) a mirror (d) aluminium foil
32. 32.True or false: a magnet is needed for the periscope. (a) True (b) False
33. 33.🔍 Which is the odd one out? (a) a dull brick (b) a mirror (c) aluminium foil (d) still clear water
34. 34.🔭 Which of these reflects light well? (a) black cloth (b) dark soil (c) a dull brick (d) a shiny steel plate
35. 35.🔍 Which is the odd one out? (a) a mirror (b) black cloth (c) a shiny steel plate (d) still clear water
36. 36.🔭 Which of these reflects light poorly? (a) dark soil (b) still clear water (c) a shiny steel plate (d) a mirror
37. 37.🧺 Do we need a balloon for the periscope? (a) not needed (b) needed
38. 38.🔭 Does a mirror reflect light well or poorly? (a) reflects light well (b) reflects light poorly
39. 39.🔭 Which of these reflects light well? (a) a dull brick (b) still clear water (c) a rough wooden board (d) dark soil
40. 40.🔮 Predict: you hold a written word up to a mirror. The letters look ___. (a) in colour (b) much bigger (c) upside down only (d) flipped left to right

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