Periscope STEM Project Worksheet

Science experiments lesson 28: Mirror periscope · Set 957 · 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.🧺 Three of these are needed for the periscope. Which one is NOT needed? (a) two small mirrors (b) a ruler (c) vinegar (d) an empty juice carton
2. 2.🔭 How many times does light bounce off a mirror in a simple periscope?
3. 3.True or false: an empty juice carton is needed for the periscope. (a) False (b) True
4. 4.True or false: a rough wooden board reflects light well. (a) False (b) True
5. 5.⚖️ Fair test — does the angle of the mirrors change how clearly you see? True or false: the same carton is what we measure. (a) False (b) True
6. 6.⚖️ Fair test — does the angle of the mirrors change how clearly you see? What do we do with “the same carton”? (a) we measure it (b) we change it (c) we keep it the same
7. 7.⚖️ Fair test — does the angle of the mirrors change how clearly you see? Which of these is what we measure? (a) the angle of the mirrors (b) the object we look at (c) the same carton (d) how clear the view is
8. 8.🔭 Does a rough wooden board reflect light well or poorly? (a) reflects light well (b) reflects light poorly
9. 9.🔭 Does still clear water reflect light well or poorly? (a) reflects light well (b) reflects light poorly
10. 10.⚖️ 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) True (b) False
11. 11.🔮 Predict: you make the periscope tube twice as tall. You can see over ___. (a) taller walls (b) only short walls (c) nothing at all (d) the ground
12. 12.🧺 Do we need vinegar for the periscope? (a) needed (b) not needed
13. 13.⚖️ 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) True (b) False
14. 14.True or false: an empty juice carton is not needed for the periscope. (a) True (b) False
15. 15.🧺 Do we need a pencil for the periscope? (a) needed (b) not needed
16. 16.🔭 At what angle are the mirrors set in a simple periscope? (a) 180 degrees (b) 10 degrees (c) 45 degrees (d) 90 degrees
17. 17.🔭 Which of these reflects light well? (a) a shiny steel plate (b) a dull brick (c) a rough wooden board (d) dark soil
18. 18.🔭 Which of these reflects light poorly? (a) a dull brick (b) a mirror (c) a shiny steel plate (d) aluminium foil
19. 19.True or false: still clear water reflects light poorly. (a) True (b) False
20. 20.🧺 Which of these is not needed for the periscope? (a) a balloon (b) sticky tape (c) an empty juice carton (d) two small mirrors
21. 21.🔭 Which of these reflects light poorly? (a) black cloth (b) a mirror (c) still clear water (d) a shiny steel plate
22. 22.True or false: vinegar is not needed for the periscope. (a) True (b) False
23. 23.⚖️ 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 same mirrors
24. 24.True or false: two small mirrors is needed for the periscope. (a) False (b) True
25. 25.True or false: a ruler is not needed for the periscope. (a) False (b) True
26. 26.🧺 Do we need turmeric powder for the periscope? (a) needed (b) not needed
27. 27.🧺 Three of these are needed for the periscope. Which one is NOT needed? (a) a ruler (b) an empty juice carton (c) a magnet (d) sticky tape
28. 28.🔭 What does a periscope let you do? (a) see over a wall (b) see germs (c) hear far sounds (d) see in the dark
29. 29.🧺 Which of these is not needed for the periscope? (a) two small mirrors (b) sticky tape (c) a magnet (d) an empty juice carton
30. 30.🧺 Which of these is needed for the periscope? (a) a balloon (b) an empty juice carton (c) a battery cell (d) vinegar
31. 31.🔭 Why must the two mirrors face each other and be parallel? (a) to make it heavy (b) so it looks shiny (c) so it can float (d) so light reaches the eye
32. 32.🔍 Which is the odd one out? (a) a mirror (b) a shiny steel plate (c) aluminium foil (d) a dull brick
33. 33.🧺 Do we need two small mirrors for the periscope? (a) needed (b) not needed
34. 34.🔭 Does aluminium foil reflect light well or poorly? (a) reflects light well (b) reflects light poorly
35. 35.True or false: a mirror reflects light poorly. (a) True (b) False
36. 36.⚖️ Fair test — does the angle of the mirrors change how clearly you see? True or false: the same mirrors is what we measure. (a) False (b) True
37. 37.True or false: a magnet is needed for the periscope. (a) False (b) True
38. 38.🔭 How many mirrors does a simple periscope use?
39. 39.🔭 Which of these reflects light well? (a) black cloth (b) a rough wooden board (c) dark soil (d) still clear water
40. 40.🔭 Does black cloth reflect light well or poorly? (a) reflects light poorly (b) reflects light well

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