Periscope STEM Project Worksheet

Science experiments lesson 28: Mirror periscope · Set 359 · 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.🧺 Three of these are needed for the periscope. Which one is NOT needed? (a) yeast (b) sticky tape (c) two small mirrors (d) a ruler
2. 2.🔮 Predict: you make the periscope tube twice as tall. You can see over ___. (a) nothing at all (b) the ground (c) taller walls (d) only short walls
3. 3.🧺 Which of these is not needed for the periscope? (a) turmeric powder (b) an empty juice carton (c) two small mirrors (d) a pencil
4. 4.True or false: black cloth reflects light poorly. (a) False (b) True
5. 5.⚖️ Fair test — does the angle of the mirrors change how clearly you see? Which of these is the one thing we change? (a) the object we look at (b) the same carton (c) the angle of the mirrors (d) how clear the view is
6. 6.⚖️ Fair test — does the angle of the mirrors change how clearly you see? True or false: the angle of the mirrors is the one thing we change. (a) True (b) False
7. 7.🔍 Which is the odd one out? (a) dark soil (b) a rough wooden board (c) black cloth (d) a mirror
8. 8.⚖️ 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
9. 9.🔭 Does still clear water reflect light well or poorly? (a) reflects light poorly (b) reflects light well
10. 10.🛟 Who should cut the holes in the juice carton? (a) a grown-up (b) nobody needs to (c) the youngest child (d) a friend who is running
11. 11.True or false: a balloon is not needed for the periscope. (a) True (b) False
12. 12.🧺 Do we need two small mirrors for the periscope? (a) needed (b) not needed
13. 13.🧺 Which of these is needed for the periscope? (a) vinegar (b) yeast (c) a pencil (d) turmeric powder
14. 14.⚖️ 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) how clear the view is (d) the object we look at
15. 15.🔮 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
16. 16.🔭 At what angle are the mirrors set in a simple periscope? (a) 180 degrees (b) 10 degrees (c) 90 degrees (d) 45 degrees
17. 17.🧺 Three of these are needed for the periscope. Which one is NOT needed? (a) turmeric powder (b) sticky tape (c) a pencil (d) an empty juice carton
18. 18.🛟 Which mirrors are safest for a children’s periscope? (a) big wall mirrors (b) loose glass panes (c) broken glass bits (d) plastic safety mirrors
19. 19.📘 Light bouncing off a mirror is called ___. (a) reflection (b) magnetism (c) evaporation (d) refraction
20. 20.🔍 Which is the odd one out? (a) aluminium foil (b) a dull brick (c) a rough wooden board (d) black cloth
21. 21.🔭 Does dark soil reflect light well or poorly? (a) reflects light well (b) reflects light poorly
22. 22.🔭 How many mirrors does a simple periscope use?
23. 23.True or false: dark soil reflects light well. (a) False (b) True
24. 24.True or false: still clear water reflects light well. (a) True (b) False
25. 25.🔭 Does black cloth reflect light well or poorly? (a) reflects light poorly (b) reflects light well
26. 26.🔍 Which is the odd one out? (a) a shiny steel plate (b) a dull brick (c) a rough wooden board (d) black cloth
27. 27.🔭 What does a periscope let you do? (a) see over a wall (b) see in the dark (c) hear far sounds (d) see germs
28. 28.🔭 Which of these reflects light well? (a) a dull brick (b) a rough wooden board (c) dark soil (d) a shiny steel plate
29. 29.🧺 Do we need an empty juice carton for the periscope? (a) not needed (b) needed
30. 30.🧺 Do we need sticky tape for the periscope? (a) needed (b) not needed
31. 31.🔍 Which is the odd one out? (a) aluminium foil (b) still clear water (c) a shiny steel plate (d) dark soil
32. 32.🧺 Which of these is needed for the periscope? (a) an empty juice carton (b) turmeric powder (c) a battery cell (d) a magnet
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.🧺 Which of these is not needed for the periscope? (a) an empty juice carton (b) a ruler (c) sticky tape (d) a balloon
35. 35.🧺 Do we need turmeric powder for the periscope? (a) not needed (b) needed
36. 36.🔭 Which of these reflects light well? (a) black cloth (b) dark soil (c) a rough wooden board (d) aluminium foil
37. 37.True or false: a ruler is not needed for the periscope. (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 same light”? (a) we keep it the same (b) we measure it (c) we change it
39. 39.🧺 Which of these is needed for the periscope? (a) vinegar (b) yeast (c) a balloon (d) a ruler
40. 40.🔍 Which is the odd one out? (a) aluminium foil (b) still clear water (c) a mirror (d) a rough wooden board

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