Periscope STEM Project Worksheet

Science experiments lesson 28: Mirror periscope · Set 517 · 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 is needed for the periscope? (a) a magnet (b) yeast (c) a balloon (d) sticky tape
2. 2.⚖️ 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
3. 3.🔭 How many times does light bounce off a mirror in a simple periscope?
4. 4.🧺 Which of these is not needed for the periscope? (a) a pencil (b) sticky tape (c) a balloon (d) a ruler
5. 5.True or false: a balloon is not needed for the periscope. (a) False (b) True
6. 6.True or false: black cloth reflects light poorly. (a) False (b) True
7. 7.⚖️ 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 keep it the same (c) we change it
8. 8.⚖️ Fair test — does the angle of the mirrors change how clearly you see? True or false: the same carton is what we measure. (a) True (b) False
9. 9.🔭 How many mirrors does a simple periscope use?
10. 10.🧺 Three of these are needed for the periscope. Which one is NOT needed? (a) sticky tape (b) a pencil (c) a ruler (d) a balloon
11. 11.🛟 Who should cut the holes in the juice carton? (a) nobody needs to (b) the youngest child (c) a friend who is running (d) a grown-up
12. 12.True or false: a shiny steel plate reflects light poorly. (a) False (b) True
13. 13.🧺 Three of these are needed for the periscope. Which one is NOT needed? (a) two small mirrors (b) a pencil (c) a magnet (d) sticky tape
14. 14.⚖️ Fair test — does the angle of the mirrors change how clearly you see? True or false: the same light is kept the same. (a) True (b) False
15. 15.🔭 Which of these reflects light poorly? (a) aluminium foil (b) a mirror (c) black cloth (d) a shiny steel plate
16. 16.🛟 You must never point a periscope or a mirror at ___. (a) a wall (b) a friend’s toy (c) the Sun (d) a tree
17. 17.🔭 Does a rough wooden board reflect light well or poorly? (a) reflects light poorly (b) reflects light well
18. 18.⚖️ Fair test — does the angle of the mirrors change how clearly you see? Which of these is what we measure? (a) the object we look at (b) the same light (c) the same mirrors (d) how clear the view is
19. 19.🔭 Does aluminium foil reflect light well or poorly? (a) reflects light poorly (b) reflects light well
20. 20.🧺 Which of these is needed for the periscope? (a) a pencil (b) a magnet (c) yeast (d) a battery cell
21. 21.🧺 Do we need two small mirrors for the periscope? (a) needed (b) not needed
22. 22.🔭 Does dark soil reflect light well or poorly? (a) reflects light well (b) reflects light poorly
23. 23.🔭 Why must the two mirrors face each other and be parallel? (a) so light reaches the eye (b) so it looks shiny (c) so it can float (d) to make it heavy
24. 24.True or false: sticky tape is needed for the periscope. (a) True (b) False
25. 25.True or false: yeast is needed for the periscope. (a) False (b) True
26. 26.🔭 Which of these reflects light well? (a) black cloth (b) dark soil (c) a dull brick (d) a mirror
27. 27.⚖️ 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
28. 28.🔭 What does a periscope let you do? (a) hear far sounds (b) see over a wall (c) see germs (d) see in the dark
29. 29.🧺 Which of these is needed for the periscope? (a) yeast (b) vinegar (c) two small mirrors (d) turmeric powder
30. 30.🧺 Which of these is not needed for the periscope? (a) an empty juice carton (b) two small mirrors (c) a magnet (d) sticky tape
31. 31.🔍 Which is the odd one out? (a) a dull brick (b) black cloth (c) still clear water (d) a rough wooden board
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 change it (b) we measure it (c) we keep it the same
33. 33.⚖️ Fair test — does the angle of the mirrors change how clearly you see? True or false: the same carton is kept the same. (a) True (b) False
34. 34.🔮 Predict: you cover the top mirror with paper. What do you see? (a) a rainbow (b) only darkness (c) a brighter view (d) two pictures
35. 35.⚖️ 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) the same mirrors (c) how clear the view is
36. 36.True or false: a battery cell is needed for the periscope. (a) True (b) False
37. 37.🧺 Which of these is not needed for the periscope? (a) an empty juice carton (b) sticky tape (c) a ruler (d) vinegar
38. 38.True or false: two small mirrors is needed for the periscope. (a) True (b) False
39. 39.⚖️ Fair test — does the angle of the mirrors change how clearly you see? True or false: the object we look at is what we measure. (a) True (b) False
40. 40.⚖️ Fair test — does the angle of the mirrors change how clearly you see? What do we do with “the same light”? (a) we keep it the same (b) we measure it (c) we change it

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