Periscope STEM Project Worksheet

Science experiments lesson 28: Mirror periscope · Set 489 · 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) taller walls (c) the ground (d) only short walls
2. 2.🔍 Which is the odd one out? (a) a mirror (b) a dull brick (c) dark soil (d) black cloth
3. 3.🧺 Which of these is not needed for the periscope? (a) an empty juice carton (b) two small mirrors (c) a balloon (d) a pencil
4. 4.🧺 Do we need an empty juice carton for the periscope? (a) needed (b) not needed
5. 5.🛟 Which mirrors are safest for a children’s periscope? (a) big wall mirrors (b) broken glass bits (c) plastic safety mirrors (d) loose glass panes
6. 6.🔭 Which of these reflects light poorly? (a) a mirror (b) still clear water (c) a rough wooden board (d) aluminium foil
7. 7.True or false: a balloon is needed for the periscope. (a) True (b) False
8. 8.True or false: a dull brick reflects light well. (a) False (b) True
9. 9.⚖️ 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 change it (c) we measure it
10. 10.⚖️ 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 change it (b) we measure it (c) we keep it the same
11. 11.⚖️ 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 mirrors (b) the angle of the mirrors (c) the same light (d) the same carton
12. 12.🔮 Predict: you hold a written word up to a mirror. The letters look ___. (a) much bigger (b) flipped left to right (c) in colour (d) upside down only
13. 13.⚖️ Fair test — does the angle of the mirrors change how clearly you see? True or false: the same mirrors is kept the same. (a) False (b) True
14. 14.⚖️ 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 same carton (d) the angle of the mirrors
15. 15.True or false: aluminium foil reflects light well. (a) False (b) True
16. 16.🧺 Which of these is needed for the periscope? (a) a battery cell (b) yeast (c) sticky tape (d) a magnet
17. 17.🔭 Which of these reflects light poorly? (a) aluminium foil (b) still clear water (c) a mirror (d) dark soil
18. 18.🔍 Which is the odd one out? (a) a dull brick (b) still clear water (c) dark soil (d) black cloth
19. 19.🔭 Which of these reflects light well? (a) a rough wooden board (b) black cloth (c) aluminium foil (d) dark soil
20. 20.True or false: a magnet is needed for the periscope. (a) False (b) True
21. 21.⚖️ 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 measure it (c) we keep it the same
22. 22.🔭 Why must the two mirrors face each other and be parallel? (a) so it looks shiny (b) so light reaches the eye (c) so it can float (d) to make it heavy
23. 23.⚖️ Fair test — does the angle of the mirrors change how clearly you see? True or false: the same carton is what we measure. (a) True (b) False
24. 24.🧺 Three of these are needed for the periscope. Which one is NOT needed? (a) vinegar (b) a ruler (c) a pencil (d) two small mirrors
25. 25.🧺 Which of these is not needed for the periscope? (a) a battery cell (b) a ruler (c) a pencil (d) an empty juice carton
26. 26.True or false: sticky tape is needed for the periscope. (a) False (b) True
27. 27.🔭 How many mirrors does a simple periscope use?
28. 28.⚖️ Fair test — does the angle of the mirrors change how clearly you see? True or false: the same light is the one thing we change. (a) False (b) True
29. 29.🔭 Who uses a periscope to look above the water? (a) a baker (b) a farmer (c) a pilot in a plane (d) a submarine crew
30. 30.🧺 Do we need a pencil for the periscope? (a) not needed (b) needed
31. 31.🔭 Which of these reflects light poorly? (a) still clear water (b) a shiny steel plate (c) a mirror (d) black cloth
32. 32.🔭 Which of these reflects light well? (a) a mirror (b) a dull brick (c) dark soil (d) black cloth
33. 33.⚖️ Fair test — does the angle of the mirrors change how clearly you see? True or false: the same carton is the one thing we change. (a) False (b) True
34. 34.⚖️ 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
35. 35.🔍 Which is the odd one out? (a) aluminium foil (b) dark soil (c) a shiny steel plate (d) a mirror
36. 36.🔍 Which is the odd one out? (a) a rough wooden board (b) black cloth (c) dark soil (d) aluminium foil
37. 37.⚖️ 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
38. 38.🔍 Which is the odd one out? (a) still clear water (b) a shiny steel plate (c) a rough wooden board (d) aluminium foil
39. 39.🔭 How many times does light bounce off a mirror in a simple periscope?
40. 40.🧺 Three of these are needed for the periscope. Which one is NOT needed? (a) an empty juice carton (b) sticky tape (c) a balloon (d) two small mirrors

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