Periscope STEM Project Worksheet

Science experiments lesson 28: Mirror periscope · Set 691 · 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.🧺 Do we need two small mirrors for the periscope? (a) not needed (b) needed
2. 2.🔭 Does dark soil reflect light well or poorly? (a) reflects light poorly (b) reflects light well
3. 3.True or false: a dull brick reflects light poorly. (a) False (b) True
4. 4.🔭 Which of these reflects light poorly? (a) a shiny steel plate (b) dark soil (c) aluminium foil (d) still clear water
5. 5.🔭 Does a shiny steel plate reflect light well or poorly? (a) reflects light well (b) reflects light poorly
6. 6.🧺 Which of these is not needed for the periscope? (a) a pencil (b) a ruler (c) sticky tape (d) a battery cell
7. 7.True or false: a pencil is not needed for the periscope. (a) True (b) False
8. 8.🛟 You must never point a periscope or a mirror at ___. (a) a friend’s toy (b) a wall (c) the Sun (d) a tree
9. 9.🔭 How many mirrors does a simple periscope use?
10. 10.⚖️ Fair test — does the angle of the mirrors change how clearly you see? True or false: the same mirrors is the one thing we change. (a) False (b) True
11. 11.⚖️ 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 measure it (b) we change it (c) we keep it the same
12. 12.🔭 Does still clear water reflect light well or poorly? (a) reflects light poorly (b) reflects light well
13. 13.🔭 Why must the two mirrors face each other and be parallel? (a) to make it heavy (b) so it can float (c) so it looks shiny (d) so light reaches the eye
14. 14.🔭 Does black cloth reflect light well or poorly? (a) reflects light well (b) reflects light poorly
15. 15.🔭 At what angle are the mirrors set in a simple periscope? (a) 180 degrees (b) 90 degrees (c) 45 degrees (d) 10 degrees
16. 16.True or false: dark soil reflects light well. (a) True (b) False
17. 17.🛟 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
18. 18.🔭 Which of these reflects light poorly? (a) a mirror (b) black cloth (c) aluminium foil (d) still clear water
19. 19.🔮 Predict: you cover the top mirror with paper. What do you see? (a) a rainbow (b) only darkness (c) two pictures (d) a brighter view
20. 20.🧺 Do we need yeast for the periscope? (a) needed (b) not needed
21. 21.⚖️ 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) how clear the view is (c) the same mirrors (d) the same carton
22. 22.🧺 Do we need an empty juice carton for the periscope? (a) needed (b) not needed
23. 23.🔮 Predict: you make the periscope tube twice as tall. You can see over ___. (a) taller walls (b) nothing at all (c) only short walls (d) the ground
24. 24.🔭 Does a rough wooden board reflect light well or poorly? (a) reflects light well (b) reflects light poorly
25. 25.🔭 How many times does light bounce off a mirror in a simple periscope?
26. 26.⚖️ Fair test — does the angle of the mirrors change how clearly you see? True or false: how clear the view is is the one thing we change. (a) True (b) False
27. 27.🧺 Do we need a ruler for the periscope? (a) not needed (b) needed
28. 28.⚖️ Fair test — does the angle of the mirrors change how clearly you see? True or false: the angle of the mirrors is kept the same. (a) True (b) False
29. 29.⚖️ Fair test — does the angle of the mirrors change how clearly you see? Which of these is the one thing we change? (a) how clear the view is (b) the same carton (c) the same mirrors (d) the angle of the mirrors
30. 30.True or false: an empty juice carton is not needed for the periscope. (a) False (b) True
31. 31.True or false: a dull brick reflects light well. (a) False (b) True
32. 32.🧺 Do we need sticky tape for the periscope? (a) not needed (b) needed
33. 33.🔍 Which is the odd one out? (a) dark soil (b) a dull brick (c) black cloth (d) a mirror
34. 34.🔭 Which of these reflects light poorly? (a) a mirror (b) still clear water (c) a rough wooden board (d) aluminium foil
35. 35.⚖️ Fair test — does the angle of the mirrors change how clearly you see? Which of these is kept the same? (a) how clear the view is (b) the angle of the mirrors (c) the object we look at
36. 36.True or false: still clear water reflects light poorly. (a) False (b) True
37. 37.📘 Light bouncing off a mirror is called ___. (a) refraction (b) evaporation (c) reflection (d) magnetism
38. 38.🧺 Do we need a magnet for the periscope? (a) not needed (b) needed
39. 39.🔍 Which is the odd one out? (a) aluminium foil (b) a mirror (c) a dull brick (d) a shiny steel plate
40. 40.🧺 Three of these are needed for the periscope. Which one is NOT needed? (a) an empty juice carton (b) a ruler (c) a magnet (d) sticky tape

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