Periscope STEM Project Worksheet

Science experiments lesson 28: Mirror periscope · Set 196 · 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: a magnet is not needed for the periscope. (a) False (b) True
2. 2.⚖️ Fair test — does the angle of the mirrors change how clearly you see? True or false: the same light is kept the same. (a) False (b) True
3. 3.⚖️ 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) False (b) True
4. 4.🔭 How many times does light bounce off a mirror in a simple periscope?
5. 5.True or false: sticky tape is not needed for the periscope. (a) True (b) False
6. 6.🔭 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
7. 7.🔍 Which is the odd one out? (a) dark soil (b) black cloth (c) a shiny steel plate (d) a rough wooden board
8. 8.🔮 Predict: you hold a written word up to a mirror. The letters look ___. (a) much bigger (b) in colour (c) flipped left to right (d) upside down only
9. 9.🛟 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
10. 10.🔭 Which of these reflects light poorly? (a) still clear water (b) aluminium foil (c) a shiny steel plate (d) a dull brick
11. 11.🔭 Does dark soil reflect light well or poorly? (a) reflects light poorly (b) reflects light well
12. 12.True or false: a shiny steel plate reflects light well. (a) True (b) False
13. 13.🧺 Do we need a ruler for the periscope? (a) needed (b) not needed
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 mirrors (b) the angle of the mirrors (c) how clear the view is (d) the object we look at
15. 15.🧺 Three of these are needed for the periscope. Which one is NOT needed? (a) a ruler (b) sticky tape (c) a pencil (d) a balloon
16. 16.🔭 Which of these reflects light poorly? (a) a rough wooden board (b) a mirror (c) still clear water (d) aluminium foil
17. 17.🔭 How many mirrors does a simple periscope use?
18. 18.True or false: two small mirrors is not needed for the periscope. (a) True (b) False
19. 19.🧺 Which of these is not needed for the periscope? (a) two small mirrors (b) an empty juice carton (c) sticky tape (d) vinegar
20. 20.🔭 At what angle are the mirrors set in a simple periscope? (a) 10 degrees (b) 90 degrees (c) 45 degrees (d) 180 degrees
21. 21.True or false: a shiny steel plate reflects light poorly. (a) False (b) True
22. 22.🛟 You must never point a periscope or a mirror at ___. (a) a tree (b) a wall (c) a friend’s toy (d) the Sun
23. 23.🔭 Which of these reflects light poorly? (a) dark soil (b) a shiny steel plate (c) aluminium foil (d) a mirror
24. 24.🧺 Which of these is needed for the periscope? (a) a balloon (b) yeast (c) a battery cell (d) sticky tape
25. 25.⚖️ Fair test — does the angle of the mirrors change how clearly you see? Which of these is the one thing we change? (a) how clear the view is (b) the object we look at (c) the same mirrors (d) the angle of the mirrors
26. 26.True or false: a dull brick reflects light poorly. (a) True (b) False
27. 27.🧺 Which of these is not needed for the periscope? (a) a ruler (b) a pencil (c) a battery cell (d) an empty juice carton
28. 28.🔮 Predict: you cover the top mirror with paper. What do you see? (a) a rainbow (b) two pictures (c) only darkness (d) a brighter view
29. 29.🔭 Which of these reflects light well? (a) a dull brick (b) a rough wooden board (c) still clear water (d) black cloth
30. 30.🔮 Predict: you make the periscope tube twice as tall. You can see over ___. (a) taller walls (b) nothing at all (c) the ground (d) only short walls
31. 31.True or false: still clear water reflects light poorly. (a) False (b) True
32. 32.🧺 Which of these is needed for the periscope? (a) a balloon (b) yeast (c) vinegar (d) a ruler
33. 33.🔭 Does still clear water reflect light well or poorly? (a) reflects light poorly (b) reflects light well
34. 34.🧺 Three of these are needed for the periscope. Which one is NOT needed? (a) sticky tape (b) a ruler (c) two small mirrors (d) vinegar
35. 35.⚖️ 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
36. 36.🔭 Why must the two mirrors face each other and be parallel? (a) so light reaches the eye (b) so it can float (c) to make it heavy (d) so it looks shiny
37. 37.🔍 Which is the odd one out? (a) black cloth (b) aluminium foil (c) a dull brick (d) a rough wooden board
38. 38.⚖️ 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) False (b) True
39. 39.🛟 Which mirrors are safest for a children’s periscope? (a) big wall mirrors (b) loose glass panes (c) plastic safety mirrors (d) broken glass bits
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 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