Periscope STEM Project Worksheet

Science experiments lesson 28: Mirror periscope · Set 425 · 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) nothing at all (b) the ground (c) taller walls (d) only short walls
2. 2.🧺 Which of these is not needed for the periscope? (a) a ruler (b) a magnet (c) sticky tape (d) a pencil
3. 3.🔍 Which is the odd one out? (a) a shiny steel plate (b) a mirror (c) black cloth (d) still clear water
4. 4.🧺 Do we need turmeric powder for the periscope? (a) not needed (b) needed
5. 5.🔭 Does a shiny steel plate reflect light well or poorly? (a) reflects light poorly (b) reflects light well
6. 6.🧺 Do we need a magnet for the periscope? (a) needed (b) not needed
7. 7.🛟 Which mirrors are safest for a children’s periscope? (a) broken glass bits (b) big wall mirrors (c) loose glass panes (d) plastic safety mirrors
8. 8.🔍 Which is the odd one out? (a) a mirror (b) a rough wooden board (c) a dull brick (d) black cloth
9. 9.True or false: a ruler is needed for the periscope. (a) True (b) False
10. 10.🛟 You must never point a periscope or a mirror at ___. (a) a wall (b) a friend’s toy (c) the Sun (d) a tree
11. 11.True or false: vinegar is needed for the periscope. (a) True (b) False
12. 12.🧺 Which of these is not needed for the periscope? (a) an empty juice carton (b) two small mirrors (c) vinegar (d) sticky tape
13. 13.True or false: a magnet is needed for the periscope. (a) True (b) False
14. 14.True or false: still clear water reflects light well. (a) False (b) True
15. 15.⚖️ Fair test — does the angle of the mirrors change how clearly you see? What do we do with “how clear the view is”? (a) we measure it (b) we change it (c) we keep it the same
16. 16.🔭 Which of these reflects light well? (a) black cloth (b) dark soil (c) a shiny steel plate (d) a dull brick
17. 17.True or false: a mirror reflects light poorly. (a) False (b) True
18. 18.🔍 Which is the odd one out? (a) a dull brick (b) a shiny steel plate (c) a mirror (d) aluminium foil
19. 19.🔭 Does a mirror reflect light well or poorly? (a) reflects light poorly (b) reflects light well
20. 20.🧺 Three of these are needed for the periscope. Which one is NOT needed? (a) a pencil (b) an empty juice carton (c) a ruler (d) turmeric powder
21. 21.⚖️ Fair test — does the angle of the mirrors change how clearly you see? True or false: the object we look at is what we measure. (a) True (b) False
22. 22.🧺 Do we need a balloon for the periscope? (a) not needed (b) needed
23. 23.🔭 Does aluminium foil reflect light well or poorly? (a) reflects light poorly (b) reflects light well
24. 24.🧺 Do we need yeast for the periscope? (a) needed (b) not needed
25. 25.True or false: sticky tape is needed for the periscope. (a) False (b) True
26. 26.True or false: a pencil is needed for the periscope. (a) False (b) True
27. 27.🧺 Which of these is needed for the periscope? (a) two small mirrors (b) a magnet (c) yeast (d) vinegar
28. 28.🔮 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
29. 29.True or false: a shiny steel plate reflects light well. (a) True (b) False
30. 30.True or false: still clear water reflects light poorly. (a) True (b) False
31. 31.🛟 Who should cut the holes in the juice carton? (a) the youngest child (b) a friend who is running (c) a grown-up (d) nobody needs to
32. 32.🔭 How many times does light bounce off a mirror in a simple periscope?
33. 33.🔭 Which of these reflects light poorly? (a) a shiny steel plate (b) aluminium foil (c) a mirror (d) black cloth
34. 34.🧺 Do we need two small mirrors for the periscope? (a) not needed (b) needed
35. 35.🔍 Which is the odd one out? (a) a shiny steel plate (b) still clear water (c) dark soil (d) a mirror
36. 36.🧺 Which of these is needed for the periscope? (a) turmeric powder (b) a ruler (c) a balloon (d) vinegar
37. 37.🔍 Which is the odd one out? (a) a shiny steel plate (b) a dull brick (c) black cloth (d) a rough wooden board
38. 38.🧺 Do we need a pencil for the periscope? (a) not needed (b) needed
39. 39.🔍 Which is the odd one out? (a) black cloth (b) dark soil (c) a dull brick (d) still clear water
40. 40.⚖️ 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

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