Periscope STEM Project Worksheet

Science experiments lesson 28: Mirror periscope · Set 107 · 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.🔭 Does aluminium foil reflect light well or poorly? (a) reflects light well (b) reflects light poorly
2. 2.🔭 How many times does light bounce off a mirror in a simple periscope?
3. 3.🔮 Predict: you hold a written word up to a mirror. The letters look ___. (a) much bigger (b) upside down only (c) in colour (d) flipped left to right
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.🔭 Which of these reflects light well? (a) black cloth (b) dark soil (c) a mirror (d) a dull brick
6. 6.🧺 Which of these is not needed for the periscope? (a) turmeric powder (b) two small mirrors (c) an empty juice carton (d) sticky tape
7. 7.🧺 Do we need a battery cell for the periscope? (a) needed (b) not needed
8. 8.🧺 Three of these are needed for the periscope. Which one is NOT needed? (a) a pencil (b) a ruler (c) yeast (d) an empty juice carton
9. 9.🔭 Who uses a periscope to look above the water? (a) a submarine crew (b) a baker (c) a pilot in a plane (d) a farmer
10. 10.🧺 Do we need a ruler for the periscope? (a) needed (b) not needed
11. 11.🔭 Does a mirror reflect light well or poorly? (a) reflects light poorly (b) reflects light well
12. 12.⚖️ 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
13. 13.🔭 Does black cloth reflect light well or poorly? (a) reflects light well (b) reflects light poorly
14. 14.True or false: two small mirrors is not needed for the periscope. (a) True (b) False
15. 15.🛟 Who should cut the holes in the juice carton? (a) nobody needs to (b) a grown-up (c) the youngest child (d) a friend who is running
16. 16.🔍 Which is the odd one out? (a) dark soil (b) a dull brick (c) a rough wooden board (d) a shiny steel plate
17. 17.🔍 Which is the odd one out? (a) still clear water (b) aluminium foil (c) a dull brick (d) a mirror
18. 18.🧺 Do we need two small mirrors for the periscope? (a) not needed (b) needed
19. 19.🔭 How many mirrors does a simple periscope use?
20. 20.🧺 Do we need a magnet for the periscope? (a) not needed (b) needed
21. 21.⚖️ 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
22. 22.🧺 Three of these are needed for the periscope. Which one is NOT needed? (a) sticky tape (b) a magnet (c) an empty juice carton (d) two small mirrors
23. 23.🔮 Predict: you make the periscope tube twice as tall. You can see over ___. (a) taller walls (b) the ground (c) only short walls (d) nothing at all
24. 24.True or false: dark soil reflects light poorly. (a) False (b) True
25. 25.🔭 At what angle are the mirrors set in a simple periscope? (a) 180 degrees (b) 10 degrees (c) 90 degrees (d) 45 degrees
26. 26.🧺 Which of these is not needed for the periscope? (a) a pencil (b) two small mirrors (c) vinegar (d) a ruler
27. 27.⚖️ 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
28. 28.⚖️ 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
29. 29.True or false: an empty juice carton is needed for the periscope. (a) False (b) True
30. 30.🔮 Predict: you cover the top mirror with paper. What do you see? (a) a rainbow (b) two pictures (c) a brighter view (d) only darkness
31. 31.⚖️ 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 object we look at (c) the same carton (d) the same mirrors
32. 32.🔭 What does a periscope let you do? (a) see over a wall (b) see germs (c) hear far sounds (d) see in the dark
33. 33.True or false: a ruler is not needed for the periscope. (a) True (b) False
34. 34.🧺 Which of these is needed for the periscope? (a) a pencil (b) turmeric powder (c) vinegar (d) yeast
35. 35.True or false: a balloon is needed for the periscope. (a) False (b) True
36. 36.📘 Light bouncing off a mirror is called ___. (a) magnetism (b) reflection (c) refraction (d) evaporation
37. 37.🧺 Which of these is not needed for the periscope? (a) sticky tape (b) a ruler (c) a magnet (d) two small mirrors
38. 38.🔭 Which of these reflects light poorly? (a) a shiny steel plate (b) still clear water (c) black cloth (d) aluminium foil
39. 39.🔭 Which of these reflects light well? (a) a rough wooden board (b) aluminium foil (c) a dull brick (d) black cloth
40. 40.True or false: a rough wooden board reflects light well. (a) False (b) True

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