Periscope STEM Project Worksheet

Science experiments lesson 28: Mirror periscope · Set 884 · 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.True or false: a pencil is not needed for the periscope. (a) False (b) True
2. 2.🔭 How many times does light bounce off a mirror in a simple periscope?
3. 3.🧺 Which of these is not needed for the periscope? (a) a battery cell (b) a pencil (c) an empty juice carton (d) two small mirrors
4. 4.🧺 Do we need a ruler for the periscope? (a) needed (b) not needed
5. 5.🔮 Predict: you hold a written word up to a mirror. The letters look ___. (a) upside down only (b) flipped left to right (c) much bigger (d) in colour
6. 6.True or false: a shiny steel plate reflects light well. (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 light”? (a) we keep it the same (b) we change it (c) we measure it
8. 8.🔭 Does still clear water reflect light well or poorly? (a) reflects light poorly (b) reflects light well
9. 9.🛟 Who should cut the holes in the juice carton? (a) the youngest child (b) nobody needs to (c) a friend who is running (d) a grown-up
10. 10.True or false: a rough wooden board reflects light poorly. (a) False (b) True
11. 11.⚖️ 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) True (b) False
12. 12.True or false: a magnet is needed for the periscope. (a) True (b) False
13. 13.🧺 Which of these is not needed for the periscope? (a) vinegar (b) two small mirrors (c) a ruler (d) a pencil
14. 14.True or false: a ruler is needed for the periscope. (a) False (b) True
15. 15.🧺 Three of these are needed for the periscope. Which one is NOT needed? (a) two small mirrors (b) turmeric powder (c) sticky tape (d) an empty juice carton
16. 16.🧺 Which of these is not needed for the periscope? (a) sticky tape (b) a ruler (c) two small mirrors (d) yeast
17. 17.🧺 Do we need vinegar for the periscope? (a) needed (b) not needed
18. 18.🧺 Which of these is not needed for the periscope? (a) an empty juice carton (b) a pencil (c) sticky tape (d) turmeric powder
19. 19.⚖️ 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
20. 20.🧺 Three of these are needed for the periscope. Which one is NOT needed? (a) yeast (b) two small mirrors (c) an empty juice carton (d) a ruler
21. 21.True or false: aluminium foil reflects light poorly. (a) False (b) True
22. 22.🔮 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
23. 23.🧺 Three of these are needed for the periscope. Which one is NOT needed? (a) a pencil (b) an empty juice carton (c) a ruler (d) a balloon
24. 24.🧺 Three of these are needed for the periscope. Which one is NOT needed? (a) an empty juice carton (b) two small mirrors (c) a ruler (d) vinegar
25. 25.True or false: a battery cell is needed for the periscope. (a) True (b) False
26. 26.🔍 Which is the odd one out? (a) a mirror (b) aluminium foil (c) dark soil (d) still clear water
27. 27.🧺 Which of these is not needed for the periscope? (a) sticky tape (b) a magnet (c) an empty juice carton (d) two small mirrors
28. 28.⚖️ 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
29. 29.🔭 Which of these reflects light well? (a) black cloth (b) dark soil (c) a mirror (d) a dull brick
30. 30.⚖️ Fair test — does the angle of the mirrors change how clearly you see? What do we do with “the same carton”? (a) we keep it the same (b) we change it (c) we measure it
31. 31.🧺 Do we need two small mirrors for the periscope? (a) not needed (b) needed
32. 32.🧺 Which of these is not needed for the periscope? (a) a balloon (b) an empty juice carton (c) two small mirrors (d) a pencil
33. 33.🔍 Which is the odd one out? (a) a shiny steel plate (b) still clear water (c) a mirror (d) black cloth
34. 34.🔭 Does a rough wooden board reflect light well or poorly? (a) reflects light poorly (b) reflects light well
35. 35.🧺 Three of these are needed for the periscope. Which one is NOT needed? (a) a pencil (b) a magnet (c) sticky tape (d) two small mirrors
36. 36.True or false: a pencil is needed for the periscope. (a) True (b) False
37. 37.🔭 Why must the two mirrors face each other and be parallel? (a) so light reaches the eye (b) to make it heavy (c) so it can float (d) so it looks shiny
38. 38.🔭 Does a mirror reflect light well or poorly? (a) reflects light well (b) reflects light poorly
39. 39.True or false: two small mirrors is not needed for the periscope. (a) False (b) True
40. 40.True or false: vinegar is not needed for the periscope. (a) True (b) False

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