Periscope STEM Project Worksheet

Science experiments lesson 28: Mirror periscope · Set 424 · 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: aluminium foil reflects light well. (a) True (b) False
2. 2.🛟 Who should cut the holes in the juice carton? (a) nobody needs to (b) the youngest child (c) a grown-up (d) a friend who is running
3. 3.🔍 Which is the odd one out? (a) black cloth (b) a dull brick (c) dark soil (d) still clear water
4. 4.True or false: a ruler is not needed for the periscope. (a) True (b) False
5. 5.🧺 Three of these are needed for the periscope. Which one is NOT needed? (a) an empty juice carton (b) a magnet (c) two small mirrors (d) sticky tape
6. 6.⚖️ Fair test — does the angle of the mirrors change how clearly you see? Which of these is the one thing we change? (a) the same mirrors (b) the same carton (c) how clear the view is (d) the angle of the mirrors
7. 7.🧺 Do we need a pencil for the periscope? (a) not needed (b) needed
8. 8.🧺 Do we need a ruler for the periscope? (a) needed (b) not needed
9. 9.🧺 Three of these are needed for the periscope. Which one is NOT needed? (a) turmeric powder (b) an empty juice carton (c) a ruler (d) sticky tape
10. 10.True or false: still clear water reflects light poorly. (a) False (b) True
11. 11.🛟 Which mirrors are safest for a children’s periscope? (a) plastic safety mirrors (b) loose glass panes (c) broken glass bits (d) big wall mirrors
12. 12.⚖️ 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
13. 13.True or false: a shiny steel plate reflects light poorly. (a) False (b) True
14. 14.🔮 Predict: you make the periscope tube twice as tall. You can see over ___. (a) only short walls (b) the ground (c) nothing at all (d) taller walls
15. 15.🧺 Which of these is needed for the periscope? (a) a battery cell (b) a ruler (c) a magnet (d) yeast
16. 16.🔭 Which of these reflects light well? (a) a mirror (b) dark soil (c) black cloth (d) a rough wooden board
17. 17.📘 Light bouncing off a mirror is called ___. (a) evaporation (b) magnetism (c) reflection (d) refraction
18. 18.🔮 Predict: you cover the top mirror with paper. What do you see? (a) a brighter view (b) a rainbow (c) only darkness (d) two pictures
19. 19.🔮 Predict: you hold a written word up to a mirror. The letters look ___. (a) flipped left to right (b) much bigger (c) upside down only (d) in colour
20. 20.🔭 At what angle are the mirrors set in a simple periscope? (a) 90 degrees (b) 45 degrees (c) 180 degrees (d) 10 degrees
21. 21.⚖️ 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 measure it (c) we keep it the same
22. 22.⚖️ 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 measure it (c) we change it
23. 23.⚖️ Fair test — does the angle of the mirrors change how clearly you see? Which of these is what we measure? (a) the angle of the mirrors (b) the object we look at (c) how clear the view is (d) the same light
24. 24.🧺 Do we need vinegar for the periscope? (a) needed (b) not needed
25. 25.🧺 Which of these is not needed for the periscope? (a) an empty juice carton (b) a magnet (c) a ruler (d) sticky tape
26. 26.🔭 Which of these reflects light poorly? (a) a mirror (b) aluminium foil (c) black cloth (d) still clear water
27. 27.🔭 Does a shiny steel plate reflect light well or poorly? (a) reflects light well (b) reflects light poorly
28. 28.🔭 How many mirrors does a simple periscope use?
29. 29.🧺 Do we need yeast for the periscope? (a) not needed (b) needed
30. 30.🧺 Which of these is not needed for the periscope? (a) sticky tape (b) turmeric powder (c) two small mirrors (d) a ruler
31. 31.🔭 Which of these reflects light well? (a) a dull brick (b) a rough wooden board (c) black cloth (d) still clear water
32. 32.🔍 Which is the odd one out? (a) a shiny steel plate (b) aluminium foil (c) still clear water (d) dark soil
33. 33.🧺 Three of these are needed for the periscope. Which one is NOT needed? (a) a battery cell (b) a ruler (c) a pencil (d) an empty juice carton
34. 34.🔭 Does black cloth reflect light well or poorly? (a) reflects light well (b) reflects light poorly
35. 35.🔍 Which is the odd one out? (a) aluminium foil (b) a mirror (c) black cloth (d) still clear water
36. 36.🧺 Three of these are needed for the periscope. Which one is NOT needed? (a) yeast (b) sticky tape (c) an empty juice carton (d) a pencil
37. 37.🔭 Which of these reflects light poorly? (a) a shiny steel plate (b) aluminium foil (c) a rough wooden board (d) still clear water
38. 38.🔍 Which is the odd one out? (a) aluminium foil (b) still clear water (c) a rough wooden board (d) a mirror
39. 39.⚖️ 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
40. 40.⚖️ 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 measure it (b) we change it (c) we keep it the same

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