Periscope STEM Project Worksheet

Science experiments lesson 28: Mirror periscope · Set 164 · 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.🔮 Predict: you hold a written word up to a mirror. The letters look ___. (a) upside down only (b) in colour (c) flipped left to right (d) much bigger
2. 2.True or false: vinegar is needed for the periscope. (a) True (b) False
3. 3.⚖️ Fair test — does the angle of the mirrors change how clearly you see? Which of these is what we measure? (a) the same light (b) the angle of the mirrors (c) the same mirrors (d) how clear the view is
4. 4.🔭 What does a periscope let you do? (a) hear far sounds (b) see in the dark (c) see germs (d) see over a wall
5. 5.🔭 How many mirrors does a simple periscope use?
6. 6.📘 Light bouncing off a mirror is called ___. (a) evaporation (b) reflection (c) refraction (d) magnetism
7. 7.🔭 Which of these reflects light poorly? (a) still clear water (b) black cloth (c) a mirror (d) aluminium foil
8. 8.True or false: black cloth reflects light well. (a) False (b) True
9. 9.🔍 Which is the odd one out? (a) a mirror (b) dark soil (c) a rough wooden board (d) black cloth
10. 10.True or false: aluminium foil reflects light poorly. (a) False (b) True
11. 11.True or false: aluminium foil reflects light well. (a) False (b) True
12. 12.🔮 Predict: you make the periscope tube twice as tall. You can see over ___. (a) nothing at all (b) only short walls (c) taller walls (d) the ground
13. 13.🧺 Which of these is needed for the periscope? (a) a battery cell (b) yeast (c) turmeric powder (d) a ruler
14. 14.🔭 Which of these reflects light poorly? (a) a mirror (b) a shiny steel plate (c) dark soil (d) aluminium foil
15. 15.⚖️ Fair test — does the angle of the mirrors change how clearly you see? True or false: the same mirrors is kept the same. (a) True (b) False
16. 16.🧺 Which of these is needed for the periscope? (a) a battery cell (b) a magnet (c) turmeric powder (d) two small mirrors
17. 17.🧺 Which of these is not needed for the periscope? (a) a pencil (b) yeast (c) an empty juice carton (d) a ruler
18. 18.🛟 Which mirrors are safest for a children’s periscope? (a) loose glass panes (b) big wall mirrors (c) broken glass bits (d) plastic safety mirrors
19. 19.🧺 Three of these are needed for the periscope. Which one is NOT needed? (a) turmeric powder (b) sticky tape (c) an empty juice carton (d) a ruler
20. 20.🔭 Who uses a periscope to look above the water? (a) a baker (b) a pilot in a plane (c) a farmer (d) a submarine crew
21. 21.⚖️ 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) True (b) False
22. 22.🧺 Which of these is needed for the periscope? (a) yeast (b) vinegar (c) a battery cell (d) an empty juice carton
23. 23.⚖️ 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) the angle of the mirrors (c) how clear the view is
24. 24.🧺 Which of these is not needed for the periscope? (a) an empty juice carton (b) vinegar (c) a pencil (d) two small mirrors
25. 25.⚖️ 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 object we look at
26. 26.True or false: a battery cell is needed for the periscope. (a) False (b) True
27. 27.⚖️ Fair test — does the angle of the mirrors change how clearly you see? True or false: the same carton is what we measure. (a) False (b) True
28. 28.🔭 Does a dull brick reflect light well or poorly? (a) reflects light well (b) reflects light poorly
29. 29.True or false: two small mirrors is needed for the periscope. (a) False (b) True
30. 30.🔭 Which of these reflects light well? (a) a rough wooden board (b) dark soil (c) aluminium foil (d) black cloth
31. 31.True or false: a mirror reflects light well. (a) True (b) False
32. 32.🔭 How many times does light bounce off a mirror in a simple periscope?
33. 33.🧺 Which of these is not needed for the periscope? (a) a ruler (b) a battery cell (c) two small mirrors (d) sticky tape
34. 34.⚖️ 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) False (b) True
35. 35.🧺 Which of these is needed for the periscope? (a) yeast (b) a balloon (c) a pencil (d) a magnet
36. 36.🛟 You must never point a periscope or a mirror at ___. (a) a wall (b) the Sun (c) a friend’s toy (d) a tree
37. 37.⚖️ Fair test — does the angle of the mirrors change how clearly you see? True or false: the same light is what we measure. (a) True (b) False
38. 38.⚖️ 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
39. 39.🔭 Which of these reflects light poorly? (a) a shiny steel plate (b) a dull brick (c) aluminium foil (d) still clear water
40. 40.🧺 Three of these are needed for the periscope. Which one is NOT needed? (a) a ruler (b) yeast (c) sticky tape (d) two small mirrors

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