Periscope STEM Project Worksheet

Science experiments lesson 28: Mirror periscope · Set 763 · 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.⚖️ 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) True (b) False
2. 2.⚖️ 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 change it (b) we measure it (c) we keep it the same
3. 3.🔭 At what angle are the mirrors set in a simple periscope? (a) 45 degrees (b) 10 degrees (c) 180 degrees (d) 90 degrees
4. 4.⚖️ Fair test — does the angle of the mirrors change how clearly you see? Which of these is kept the same? (a) how clear the view is (b) the angle of the mirrors (c) the same light
5. 5.🧺 Do we need a balloon for the periscope? (a) not needed (b) needed
6. 6.🧺 Three of these are needed for the periscope. Which one is NOT needed? (a) sticky tape (b) an empty juice carton (c) a battery cell (d) two small mirrors
7. 7.🧺 Do we need a magnet for the periscope? (a) not needed (b) needed
8. 8.🧺 Do we need an empty juice carton for the periscope? (a) needed (b) not needed
9. 9.🔭 Which of these reflects light well? (a) a rough wooden board (b) a dull brick (c) dark soil (d) a mirror
10. 10.🛟 Which mirrors are safest for a children’s periscope? (a) big wall mirrors (b) broken glass bits (c) loose glass panes (d) plastic safety mirrors
11. 11.🔍 Which is the odd one out? (a) a dull brick (b) a rough wooden board (c) black cloth (d) a mirror
12. 12.🔭 How many mirrors does a simple periscope use?
13. 13.🔭 Does a mirror reflect light well or poorly? (a) reflects light poorly (b) reflects light well
14. 14.🛟 Who should cut the holes in the juice carton? (a) nobody needs to (b) a friend who is running (c) a grown-up (d) the youngest child
15. 15.🧺 Three of these are needed for the periscope. Which one is NOT needed? (a) two small mirrors (b) a pencil (c) an empty juice carton (d) a balloon
16. 16.⚖️ 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
17. 17.True or false: a shiny steel plate reflects light poorly. (a) False (b) True
18. 18.True or false: turmeric powder is needed for the periscope. (a) False (b) True
19. 19.🔍 Which is the odd one out? (a) black cloth (b) a shiny steel plate (c) still clear water (d) aluminium foil
20. 20.⚖️ 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) how clear the view is (d) the angle of the mirrors
21. 21.🧺 Which of these is not needed for the periscope? (a) two small mirrors (b) an empty juice carton (c) a ruler (d) yeast
22. 22.⚖️ 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
23. 23.True or false: aluminium foil reflects light well. (a) True (b) False
24. 24.🧺 Which of these is not needed for the periscope? (a) a ruler (b) a pencil (c) an empty juice carton (d) a balloon
25. 25.🔭 Which of these reflects light poorly? (a) a dull brick (b) a shiny steel plate (c) aluminium foil (d) still clear water
26. 26.🧺 Three of these are needed for the periscope. Which one is NOT needed? (a) a ruler (b) a magnet (c) an empty juice carton (d) a pencil
27. 27.True or false: a dull brick reflects light well. (a) True (b) False
28. 28.🧺 Three of these are needed for the periscope. Which one is NOT needed? (a) sticky tape (b) two small mirrors (c) yeast (d) an empty juice carton
29. 29.🧺 Which of these is needed for the periscope? (a) turmeric powder (b) a battery cell (c) a magnet (d) an empty juice carton
30. 30.🔭 Which of these reflects light poorly? (a) black cloth (b) still clear water (c) aluminium foil (d) a shiny steel plate
31. 31.🧺 Do we need a ruler for the periscope? (a) needed (b) not needed
32. 32.🔭 Why must the two mirrors face each other and be parallel? (a) to make it heavy (b) so it can float (c) so light reaches the eye (d) so it looks shiny
33. 33.⚖️ 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
34. 34.🔍 Which is the odd one out? (a) dark soil (b) a dull brick (c) a shiny steel plate (d) a rough wooden board
35. 35.🔭 Does a shiny steel plate reflect light well or poorly? (a) reflects light well (b) reflects light poorly
36. 36.🔭 Does black cloth reflect light well or poorly? (a) reflects light poorly (b) reflects light well
37. 37.🛟 You must never point a periscope or a mirror at ___. (a) a tree (b) a friend’s toy (c) a wall (d) the Sun
38. 38.🔍 Which is the odd one out? (a) a shiny steel plate (b) aluminium foil (c) dark soil (d) still clear water
39. 39.🔭 Which of these reflects light well? (a) a rough wooden board (b) dark soil (c) black cloth (d) a shiny steel plate
40. 40.⚖️ 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 keep it the same (c) we change it

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