Periscope STEM Project Worksheet

Science experiments lesson 28: Mirror periscope · Set 626 · 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 object we look at is kept the same. (a) False (b) True
2. 2.True or false: still clear water reflects light poorly. (a) True (b) False
3. 3.🔍 Which is the odd one out? (a) a shiny steel plate (b) still clear water (c) a mirror (d) a rough wooden board
4. 4.True or false: black cloth reflects light poorly. (a) False (b) True
5. 5.🔮 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
6. 6.⚖️ Fair test — does the angle of the mirrors change how clearly you see? True or false: how clear the view is is kept the same. (a) True (b) False
7. 7.🔭 How many mirrors does a simple periscope use?
8. 8.🔭 At what angle are the mirrors set in a simple periscope? (a) 90 degrees (b) 180 degrees (c) 45 degrees (d) 10 degrees
9. 9.⚖️ 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 mirrors
10. 10.🧺 Three of these are needed for the periscope. Which one is NOT needed? (a) yeast (b) a pencil (c) sticky tape (d) two small mirrors
11. 11.⚖️ 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 measure it (b) we keep it the same (c) we change it
12. 12.🔭 Which of these reflects light poorly? (a) a mirror (b) still clear water (c) black cloth (d) aluminium foil
13. 13.🔭 Does a dull brick reflect light well or poorly? (a) reflects light well (b) reflects light poorly
14. 14.🛟 You must never point a periscope or a mirror at ___. (a) a friend’s toy (b) the Sun (c) a wall (d) a tree
15. 15.True or false: a balloon is not needed for the periscope. (a) True (b) False
16. 16.🔭 What does a periscope let you do? (a) hear far sounds (b) see in the dark (c) see germs (d) see over a wall
17. 17.🔭 Does a shiny steel plate reflect light well or poorly? (a) reflects light poorly (b) reflects light well
18. 18.True or false: a dull brick reflects light well. (a) False (b) True
19. 19.🔭 Does black cloth reflect light well or poorly? (a) reflects light well (b) reflects light poorly
20. 20.True or false: a battery cell is needed for the periscope. (a) False (b) True
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 measure it (b) we change it (c) we keep it the same
22. 22.🔭 Which of these reflects light well? (a) a rough wooden board (b) a shiny steel plate (c) black cloth (d) dark soil
23. 23.🔮 Predict: you hold a written word up to a mirror. The letters look ___. (a) upside down only (b) flipped left to right (c) in colour (d) much bigger
24. 24.🧺 Which of these is not needed for the periscope? (a) sticky tape (b) an empty juice carton (c) two small mirrors (d) a magnet
25. 25.🔭 Does aluminium foil reflect light well or poorly? (a) reflects light well (b) reflects light poorly
26. 26.⚖️ Fair test — does the angle of the mirrors change how clearly you see? What do we do with “the object we look at”? (a) we keep it the same (b) we change it (c) we measure it
27. 27.🧺 Three of these are needed for the periscope. Which one is NOT needed? (a) sticky tape (b) a ruler (c) a pencil (d) a magnet
28. 28.🧺 Do we need vinegar for the periscope? (a) needed (b) not needed
29. 29.🧺 Three of these are needed for the periscope. Which one is NOT needed? (a) a ruler (b) two small mirrors (c) turmeric powder (d) an empty juice carton
30. 30.🔭 Who uses a periscope to look above the water? (a) a submarine crew (b) a pilot in a plane (c) a baker (d) a farmer
31. 31.🔭 Which of these reflects light well? (a) dark soil (b) a rough wooden board (c) a dull brick (d) still clear water
32. 32.🧺 Which of these is not needed for the periscope? (a) an empty juice carton (b) yeast (c) a pencil (d) two small mirrors
33. 33.⚖️ 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
34. 34.🔭 Does a mirror reflect light well or poorly? (a) reflects light well (b) reflects light poorly
35. 35.True or false: still clear water reflects light well. (a) True (b) False
36. 36.True or false: a rough wooden board reflects light poorly. (a) False (b) True
37. 37.⚖️ Fair test — does the angle of the mirrors change how clearly you see? What do we do with “the same carton”? (a) we change it (b) we keep it the same (c) we measure it
38. 38.True or false: a magnet is not needed for the periscope. (a) False (b) True
39. 39.🔍 Which is the odd one out? (a) black cloth (b) a mirror (c) still clear water (d) a shiny steel plate
40. 40.🧺 Do we need a balloon for the periscope? (a) not needed (b) needed

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