Periscope STEM Project Worksheet

Science experiments lesson 28: Mirror periscope · Set 658 · 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 same mirrors is what we measure. (a) True (b) False
2. 2.🔮 Predict: you hold a written word up to a mirror. The letters look ___. (a) much bigger (b) flipped left to right (c) upside down only (d) in colour
3. 3.🧺 Three of these are needed for the periscope. Which one is NOT needed? (a) a pencil (b) two small mirrors (c) sticky tape (d) a magnet
4. 4.🧺 Which of these is not needed for the periscope? (a) sticky tape (b) a ruler (c) an empty juice carton (d) vinegar
5. 5.⚖️ 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
6. 6.⚖️ Fair test — does the angle of the mirrors change how clearly you see? Which of these is kept the same? (a) the same carton (b) how clear the view is (c) the angle of the mirrors
7. 7.True or false: an empty juice carton is needed for the periscope. (a) True (b) False
8. 8.🧺 Do we need vinegar for the periscope? (a) not needed (b) needed
9. 9.🔍 Which is the odd one out? (a) still clear water (b) a shiny steel plate (c) a mirror (d) a rough wooden board
10. 10.🧺 Three of these are needed for the periscope. Which one is NOT needed? (a) vinegar (b) sticky tape (c) an empty juice carton (d) two small mirrors
11. 11.🔭 Which of these reflects light poorly? (a) still clear water (b) a dull brick (c) aluminium foil (d) a shiny steel plate
12. 12.True or false: a mirror reflects light poorly. (a) False (b) True
13. 13.🔭 Does a rough wooden board reflect light well or poorly? (a) reflects light well (b) reflects light poorly
14. 14.True or false: sticky tape is needed for the periscope. (a) False (b) True
15. 15.True or false: a balloon is needed for the periscope. (a) True (b) False
16. 16.🔭 How many times does light bounce off a mirror in a simple periscope?
17. 17.🔭 How many mirrors does a simple periscope use?
18. 18.True or false: dark soil reflects light poorly. (a) False (b) True
19. 19.🧺 Do we need a balloon for the periscope? (a) not needed (b) needed
20. 20.🛟 Which mirrors are safest for a children’s periscope? (a) big wall mirrors (b) loose glass panes (c) plastic safety mirrors (d) broken glass bits
21. 21.⚖️ Fair test — does the angle of the mirrors change how clearly you see? Which of these is what we measure? (a) how clear the view is (b) the same light (c) the object we look at (d) the same carton
22. 22.True or false: a rough wooden board reflects light poorly. (a) False (b) True
23. 23.⚖️ 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
24. 24.🧺 Do we need yeast for the periscope? (a) not needed (b) needed
25. 25.🔭 Does aluminium foil reflect light well or poorly? (a) reflects light well (b) reflects light poorly
26. 26.True or false: a shiny steel plate reflects light well. (a) False (b) True
27. 27.True or false: still clear water reflects light poorly. (a) True (b) False
28. 28.🔭 Which of these reflects light poorly? (a) a mirror (b) black cloth (c) a shiny steel plate (d) aluminium foil
29. 29.🛟 You must never point a periscope or a mirror at ___. (a) a wall (b) a friend’s toy (c) the Sun (d) a tree
30. 30.🔭 What does a periscope let you do? (a) hear far sounds (b) see in the dark (c) see over a wall (d) see germs
31. 31.True or false: a balloon is not needed for the periscope. (a) False (b) True
32. 32.🧺 Which of these is needed for the periscope? (a) a magnet (b) an empty juice carton (c) vinegar (d) a battery cell
33. 33.⚖️ 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
34. 34.True or false: a shiny steel plate reflects light poorly. (a) False (b) True
35. 35.🔮 Predict: you cover the top mirror with paper. What do you see? (a) only darkness (b) two pictures (c) a rainbow (d) a brighter view
36. 36.⚖️ Fair test — does the angle of the mirrors change how clearly you see? What do we do with “the same light”? (a) we change it (b) we keep it the same (c) we measure it
37. 37.True or false: a dull brick reflects light poorly. (a) True (b) False
38. 38.🔮 Predict: you make the periscope tube twice as tall. You can see over ___. (a) nothing at all (b) the ground (c) only short walls (d) taller walls
39. 39.📘 Light bouncing off a mirror is called ___. (a) reflection (b) magnetism (c) refraction (d) evaporation
40. 40.🔭 Which of these reflects light well? (a) still clear water (b) a rough wooden board (c) dark soil (d) a dull brick

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