Periscope STEM Project Worksheet

Science experiments lesson 28: Mirror periscope · Set 206 · 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.🛟 You must never point a periscope or a mirror at ___. (a) a tree (b) a wall (c) the Sun (d) a friend’s toy
2. 2.⚖️ Fair test — does the angle of the mirrors change how clearly you see? What do we do with “how clear the view is”? (a) we keep it the same (b) we measure it (c) we change it
3. 3.🧺 Do we need a pencil for the periscope? (a) needed (b) not needed
4. 4.⚖️ 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 measure it (c) we change it
5. 5.🧺 Do we need yeast for the periscope? (a) not needed (b) needed
6. 6.🧺 Which of these is not needed for the periscope? (a) a magnet (b) a pencil (c) a ruler (d) an empty juice carton
7. 7.🔭 What does a periscope let you do? (a) see in the dark (b) see germs (c) hear far sounds (d) see over a wall
8. 8.📘 Light bouncing off a mirror is called ___. (a) refraction (b) reflection (c) magnetism (d) evaporation
9. 9.🧺 Three of these are needed for the periscope. Which one is NOT needed? (a) two small mirrors (b) an empty juice carton (c) a balloon (d) a pencil
10. 10.🔭 Does dark soil reflect light well or poorly? (a) reflects light poorly (b) reflects light well
11. 11.🔭 How many mirrors does a simple periscope use?
12. 12.⚖️ Fair test — does the angle of the mirrors change how clearly you see? True or false: the same mirrors is what we measure. (a) True (b) False
13. 13.🔮 Predict: you hold a written word up to a mirror. The letters look ___. (a) in colour (b) upside down only (c) much bigger (d) flipped left to right
14. 14.⚖️ 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
15. 15.True or false: yeast is not needed for the periscope. (a) True (b) False
16. 16.🔭 Does a rough wooden board reflect light well or poorly? (a) reflects light poorly (b) reflects light well
17. 17.🔭 Why must the two mirrors face each other and be parallel? (a) so it looks shiny (b) so it can float (c) to make it heavy (d) so light reaches the eye
18. 18.🔭 Which of these reflects light well? (a) dark soil (b) a dull brick (c) still clear water (d) a rough wooden board
19. 19.🔭 How many times does light bounce off a mirror in a simple periscope?
20. 20.🧺 Do we need a ruler for the periscope? (a) not needed (b) needed
21. 21.True or false: a balloon is not needed for the periscope. (a) True (b) False
22. 22.True or false: a dull brick reflects light poorly. (a) False (b) True
23. 23.⚖️ 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
24. 24.🧺 Do we need a balloon for the periscope? (a) needed (b) not needed
25. 25.🧺 Which of these is needed for the periscope? (a) turmeric powder (b) yeast (c) vinegar (d) two small mirrors
26. 26.⚖️ Fair test — does the angle of the mirrors change how clearly you see? True or false: the same carton is the one thing we change. (a) False (b) True
27. 27.🔭 Does a mirror reflect light well or poorly? (a) reflects light poorly (b) reflects light well
28. 28.🔭 Which of these reflects light poorly? (a) aluminium foil (b) a mirror (c) still clear water (d) black cloth
29. 29.True or false: a battery cell is needed for the periscope. (a) True (b) False
30. 30.⚖️ 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
31. 31.True or false: aluminium foil reflects light well. (a) True (b) False
32. 32.🔍 Which is the odd one out? (a) aluminium foil (b) a mirror (c) a rough wooden board (d) still clear water
33. 33.⚖️ 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 light
34. 34.🔭 Which of these reflects light poorly? (a) still clear water (b) dark soil (c) a mirror (d) a shiny steel plate
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 same mirrors
36. 36.True or false: a balloon is needed for the periscope. (a) True (b) False
37. 37.⚖️ Fair test — does the angle of the mirrors change how clearly you see? Which of these is what we measure? (a) the same mirrors (b) how clear the view is (c) the angle of the mirrors (d) the same carton
38. 38.🧺 Three of these are needed for the periscope. Which one is NOT needed? (a) vinegar (b) two small mirrors (c) an empty juice carton (d) sticky tape
39. 39.🔭 Which of these reflects light poorly? (a) still clear water (b) aluminium foil (c) a dull brick (d) a shiny steel plate
40. 40.True or false: sticky tape is needed for the periscope. (a) True (b) False

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