Periscope STEM Project Worksheet

Science experiments lesson 28: Mirror periscope · Set 172 · 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 make the periscope tube twice as tall. You can see over ___. (a) the ground (b) taller walls (c) nothing at all (d) only short walls
2. 2.🔮 Predict: you hold a written word up to a mirror. The letters look ___. (a) flipped left to right (b) much bigger (c) in colour (d) upside down only
3. 3.🔭 What does a periscope let you do? (a) see germs (b) hear far sounds (c) see over a wall (d) see in the dark
4. 4.🔭 Does a shiny steel plate reflect light well or poorly? (a) reflects light poorly (b) reflects light well
5. 5.🛟 You must never point a periscope or a mirror at ___. (a) a friend’s toy (b) a tree (c) a wall (d) the Sun
6. 6.🔍 Which is the odd one out? (a) black cloth (b) a rough wooden board (c) still clear water (d) dark soil
7. 7.🧺 Which of these is not needed for the periscope? (a) two small mirrors (b) a balloon (c) an empty juice carton (d) sticky tape
8. 8.🔭 How many mirrors does a simple periscope use?
9. 9.🛟 Who should cut the holes in the juice carton? (a) a grown-up (b) the youngest child (c) a friend who is running (d) nobody needs to
10. 10.🔭 Does black cloth reflect light well or poorly? (a) reflects light well (b) reflects light poorly
11. 11.🧺 Do we need a battery cell for the periscope? (a) not needed (b) needed
12. 12.True or false: an empty juice carton is needed for the periscope. (a) False (b) True
13. 13.🔍 Which is the odd one out? (a) dark soil (b) still clear water (c) aluminium foil (d) a mirror
14. 14.⚖️ Fair test — does the angle of the mirrors change how clearly you see? True or false: the angle of the mirrors is what we measure. (a) True (b) False
15. 15.True or false: sticky tape is not needed for the periscope. (a) True (b) False
16. 16.🧺 Which of these is needed for the periscope? (a) yeast (b) vinegar (c) two small mirrors (d) turmeric powder
17. 17.⚖️ Fair test — does the angle of the mirrors change how clearly you see? What do we do with “the same mirrors”? (a) we measure it (b) we keep it the same (c) we change it
18. 18.True or false: two small mirrors is not needed for the periscope. (a) True (b) False
19. 19.🔭 Does dark soil reflect light well or poorly? (a) reflects light poorly (b) reflects light well
20. 20.🧺 Which of these is needed for the periscope? (a) vinegar (b) a magnet (c) yeast (d) a ruler
21. 21.🔮 Predict: you cover the top mirror with paper. What do you see? (a) only darkness (b) a brighter view (c) two pictures (d) a rainbow
22. 22.🔭 Who uses a periscope to look above the water? (a) a baker (b) a farmer (c) a submarine crew (d) a pilot in a plane
23. 23.True or false: a mirror reflects light well. (a) False (b) True
24. 24.🧺 Three of these are needed for the periscope. Which one is NOT needed? (a) sticky tape (b) vinegar (c) an empty juice carton (d) a pencil
25. 25.🧺 Do we need sticky tape for the periscope? (a) not needed (b) needed
26. 26.🧺 Which of these is not needed for the periscope? (a) an empty juice carton (b) turmeric powder (c) a pencil (d) a ruler
27. 27.🔭 Which of these reflects light poorly? (a) a shiny steel plate (b) a rough wooden board (c) a mirror (d) aluminium foil
28. 28.📘 Light bouncing off a mirror is called ___. (a) reflection (b) magnetism (c) evaporation (d) refraction
29. 29.True or false: a battery cell is needed for the periscope. (a) False (b) True
30. 30.🧺 Do we need a magnet for the periscope? (a) needed (b) not needed
31. 31.🔭 Does a rough wooden board reflect light well or poorly? (a) reflects light well (b) reflects light poorly
32. 32.True or false: black cloth reflects light well. (a) True (b) False
33. 33.🔍 Which is the odd one out? (a) a shiny steel plate (b) still clear water (c) a mirror (d) black cloth
34. 34.🔍 Which is the odd one out? (a) a rough wooden board (b) a dull brick (c) black cloth (d) aluminium foil
35. 35.⚖️ 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 change it (c) we measure it
36. 36.⚖️ 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 object we look at (c) the angle of the mirrors
37. 37.🔭 Which of these reflects light well? (a) still clear water (b) a rough wooden board (c) black cloth (d) dark soil
38. 38.⚖️ Fair test — does the angle of the mirrors change how clearly you see? True or false: how clear the view is is what we measure. (a) False (b) True
39. 39.True or false: an empty juice carton is not needed for the periscope. (a) True (b) False
40. 40.⚖️ 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

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