Periscope STEM Project Worksheet

Science experiments lesson 28: Mirror periscope · Set 469 · 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? True or false: the same carton is the one thing we change. (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) the angle of the mirrors (c) the same mirrors (d) how clear the view is
3. 3.⚖️ Fair test — does the angle of the mirrors change how clearly you see? Which of these is what we measure? (a) the angle of the mirrors (b) the object we look at (c) the same light (d) how clear the view is
4. 4.⚖️ 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 same light
5. 5.🧺 Three of these are needed for the periscope. Which one is NOT needed? (a) a pencil (b) two small mirrors (c) turmeric powder (d) a ruler
6. 6.🧺 Do we need turmeric powder for the periscope? (a) needed (b) not needed
7. 7.🧺 Which of these is needed for the periscope? (a) vinegar (b) two small mirrors (c) turmeric powder (d) yeast
8. 8.🧺 Do we need a balloon for the periscope? (a) needed (b) not needed
9. 9.True or false: an empty juice carton is needed for the periscope. (a) False (b) True
10. 10.🔭 Which of these reflects light well? (a) aluminium foil (b) a rough wooden board (c) dark soil (d) black cloth
11. 11.True or false: dark soil reflects light well. (a) False (b) True
12. 12.🔍 Which is the odd one out? (a) a mirror (b) still clear water (c) aluminium foil (d) black cloth
13. 13.⚖️ 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 measure it (c) we change it
14. 14.🛟 Who should cut the holes in the juice carton? (a) nobody needs to (b) the youngest child (c) a grown-up (d) a friend who is running
15. 15.🔮 Predict: you make the periscope tube twice as tall. You can see over ___. (a) the ground (b) taller walls (c) nothing at all (d) only short walls
16. 16.🔭 Which of these reflects light well? (a) dark soil (b) a shiny steel plate (c) black cloth (d) a dull brick
17. 17.🛟 Which mirrors are safest for a children’s periscope? (a) big wall mirrors (b) loose glass panes (c) broken glass bits (d) plastic safety mirrors
18. 18.True or false: black cloth reflects light well. (a) True (b) False
19. 19.⚖️ 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
20. 20.🔭 How many times does light bounce off a mirror in a simple periscope?
21. 21.True or false: yeast is needed for the periscope. (a) False (b) True
22. 22.🔍 Which is the odd one out? (a) a mirror (b) aluminium foil (c) a rough wooden board (d) still clear water
23. 23.🔭 Does dark soil reflect light well or poorly? (a) reflects light well (b) reflects light poorly
24. 24.⚖️ 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
25. 25.🧺 Which of these is needed for the periscope? (a) sticky tape (b) a battery cell (c) vinegar (d) turmeric powder
26. 26.🔭 Which of these reflects light poorly? (a) dark soil (b) aluminium foil (c) a mirror (d) still clear water
27. 27.🧺 Three of these are needed for the periscope. Which one is NOT needed? (a) two small mirrors (b) sticky tape (c) a battery cell (d) a ruler
28. 28.⚖️ 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
29. 29.True or false: a pencil is not needed for the periscope. (a) True (b) False
30. 30.True or false: aluminium foil reflects light well. (a) False (b) True
31. 31.🧺 Do we need two small mirrors for the periscope? (a) not needed (b) needed
32. 32.True or false: a battery cell is not needed for the periscope. (a) False (b) True
33. 33.True or false: a ruler is not needed for the periscope. (a) False (b) True
34. 34.⚖️ Fair test — does the angle of the mirrors change how clearly you see? What do we do with “the same carton”? (a) we measure it (b) we keep it the same (c) we change it
35. 35.🧺 Do we need sticky tape for the periscope? (a) needed (b) not needed
36. 36.🔭 Who uses a periscope to look above the water? (a) a pilot in a plane (b) a submarine crew (c) a baker (d) a farmer
37. 37.🧺 Three of these are needed for the periscope. Which one is NOT needed? (a) a ruler (b) a magnet (c) an empty juice carton (d) sticky tape
38. 38.🔮 Predict: you cover the top mirror with paper. What do you see? (a) a rainbow (b) a brighter view (c) only darkness (d) two pictures
39. 39.📘 Light bouncing off a mirror is called ___. (a) reflection (b) evaporation (c) refraction (d) magnetism
40. 40.🧺 Do we need a battery cell for the periscope? (a) not needed (b) needed

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