Periscope STEM Project Worksheet

Science experiments lesson 28: Mirror periscope · Set 699 · 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.🧺 Which of these is needed for the periscope? (a) two small mirrors (b) a magnet (c) a balloon (d) yeast
2. 2.🔭 Why must the two mirrors face each other and be parallel? (a) so it looks shiny (b) so it can float (c) to make it heavy (d) so light reaches the eye
3. 3.⚖️ Fair test — does the angle of the mirrors change how clearly you see? Which of these is what we measure? (a) how clear the view is (b) the object we look at (c) the angle of the mirrors (d) the same carton
4. 4.True or false: dark soil reflects light poorly. (a) False (b) True
5. 5.True or false: a magnet is not needed for the periscope. (a) False (b) True
6. 6.True or false: an empty juice carton is not needed for the periscope. (a) True (b) False
7. 7.⚖️ 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 light (b) the object we look at (c) the angle of the mirrors (d) how clear the view is
8. 8.True or false: two small mirrors is needed for the periscope. (a) True (b) False
9. 9.⚖️ 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
10. 10.⚖️ Fair test — does the angle of the mirrors change how clearly you see? What do we do with “the same mirrors”? (a) we change it (b) we measure it (c) we keep it the same
11. 11.🔮 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
12. 12.🔭 How many mirrors does a simple periscope use?
13. 13.🔭 What does a periscope let you do? (a) see over a wall (b) see germs (c) see in the dark (d) hear far sounds
14. 14.⚖️ Fair test — does the angle of the mirrors change how clearly you see? What do we do with “the same carton”? (a) we change it (b) we keep it the same (c) we measure it
15. 15.🔮 Predict: you cover the top mirror with paper. What do you see? (a) a rainbow (b) only darkness (c) two pictures (d) a brighter view
16. 16.🧺 Do we need sticky tape for the periscope? (a) needed (b) not needed
17. 17.🔮 Predict: you hold a written word up to a mirror. The letters look ___. (a) flipped left to right (b) upside down only (c) in colour (d) much bigger
18. 18.🔭 Which of these reflects light poorly? (a) a shiny steel plate (b) a mirror (c) aluminium foil (d) black cloth
19. 19.🔭 Which of these reflects light well? (a) a shiny steel plate (b) a rough wooden board (c) dark soil (d) a dull brick
20. 20.True or false: sticky tape is not needed for the periscope. (a) False (b) True
21. 21.🛟 Which mirrors are safest for a children’s periscope? (a) plastic safety mirrors (b) big wall mirrors (c) loose glass panes (d) broken glass bits
22. 22.🔭 Which of these reflects light poorly? (a) a mirror (b) aluminium foil (c) still clear water (d) a rough wooden board
23. 23.🔭 Does a rough wooden board reflect light well or poorly? (a) reflects light poorly (b) reflects light well
24. 24.🧺 Which of these is needed for the periscope? (a) a magnet (b) turmeric powder (c) vinegar (d) a ruler
25. 25.🔭 Does aluminium foil reflect light well or poorly? (a) reflects light poorly (b) reflects light well
26. 26.🔍 Which is the odd one out? (a) a rough wooden board (b) still clear water (c) black cloth (d) a dull brick
27. 27.⚖️ 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 keep it the same (b) we measure it (c) we change it
28. 28.🧺 Three of these are needed for the periscope. Which one is NOT needed? (a) a ruler (b) a magnet (c) sticky tape (d) a pencil
29. 29.🔭 Does a shiny steel plate reflect light well or poorly? (a) reflects light poorly (b) reflects light well
30. 30.🧺 Three of these are needed for the periscope. Which one is NOT needed? (a) a pencil (b) two small mirrors (c) a ruler (d) yeast
31. 31.True or false: still clear water reflects light well. (a) False (b) True
32. 32.True or false: aluminium foil reflects light poorly. (a) True (b) False
33. 33.🔭 Does black cloth reflect light well or poorly? (a) reflects light poorly (b) reflects light well
34. 34.🛟 Who should cut the holes in the juice carton? (a) a friend who is running (b) the youngest child (c) nobody needs to (d) a grown-up
35. 35.🧺 Do we need a magnet for the periscope? (a) not needed (b) needed
36. 36.True or false: yeast is needed for the periscope. (a) True (b) False
37. 37.True or false: vinegar is needed for the periscope. (a) True (b) False
38. 38.⚖️ Fair test — does the angle of the mirrors change how clearly you see? True or false: the angle of the mirrors is kept the same. (a) True (b) False
39. 39.🔭 Which of these reflects light well? (a) a rough wooden board (b) dark soil (c) a mirror (d) black cloth
40. 40.🔭 Which of these reflects light well? (a) a rough wooden board (b) dark soil (c) aluminium foil (d) a dull brick

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