Periscope STEM Project Worksheet

Science experiments lesson 28: Mirror periscope · Set 827 · 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 is the odd one out? (a) dark soil (b) a dull brick (c) black cloth (d) aluminium foil
2. 2.True or false: an empty juice carton is needed for the periscope. (a) False (b) True
3. 3.True or false: a shiny steel plate reflects light well. (a) False (b) True
4. 4.🔭 Which of these reflects light well? (a) black cloth (b) a rough wooden board (c) dark soil (d) still clear water
5. 5.🛟 You must never point a periscope or a mirror at ___. (a) a friend’s toy (b) the Sun (c) a wall (d) a tree
6. 6.🔭 Does a mirror reflect light well or poorly? (a) reflects light well (b) reflects light poorly
7. 7.🔮 Predict: you cover the top mirror with paper. What do you see? (a) two pictures (b) a brighter view (c) only darkness (d) a rainbow
8. 8.🔭 What does a periscope let you do? (a) see in the dark (b) see over a wall (c) hear far sounds (d) see germs
9. 9.🔍 Which is the odd one out? (a) still clear water (b) a dull brick (c) aluminium foil (d) a shiny steel plate
10. 10.🧺 Do we need sticky tape for the periscope? (a) needed (b) not needed
11. 11.🧺 Which of these is needed for the periscope? (a) a battery cell (b) a magnet (c) two small mirrors (d) yeast
12. 12.🛟 Which mirrors are safest for a children’s periscope? (a) big wall mirrors (b) loose glass panes (c) broken glass bits (d) plastic safety mirrors
13. 13.True or false: a battery cell is not needed for the periscope. (a) False (b) True
14. 14.🧺 Which of these is needed for the periscope? (a) vinegar (b) turmeric powder (c) a pencil (d) a magnet
15. 15.🔭 Does a shiny steel plate reflect light well or poorly? (a) reflects light well (b) reflects light poorly
16. 16.🧺 Three of these are needed for the periscope. Which one is NOT needed? (a) two small mirrors (b) a ruler (c) a battery cell (d) an empty juice carton
17. 17.🔮 Predict: you make the periscope tube twice as tall. You can see over ___. (a) only short walls (b) nothing at all (c) the ground (d) taller walls
18. 18.🧺 Which of these is not needed for the periscope? (a) a magnet (b) a pencil (c) sticky tape (d) an empty juice carton
19. 19.🔍 Which is the odd one out? (a) still clear water (b) black cloth (c) a mirror (d) aluminium foil
20. 20.🧺 Three of these are needed for the periscope. Which one is NOT needed? (a) a pencil (b) a ruler (c) turmeric powder (d) sticky tape
21. 21.🧺 Do we need yeast for the periscope? (a) needed (b) not needed
22. 22.True or false: dark soil reflects light well. (a) False (b) True
23. 23.⚖️ Fair test — does the angle of the mirrors change how clearly you see? Which of these is the one thing we change? (a) the object we look at (b) the same carton (c) how clear the view is (d) the angle of the mirrors
24. 24.⚖️ Fair test — does the angle of the mirrors change how clearly you see? True or false: how clear the view is is kept the same. (a) True (b) False
25. 25.🔭 Does a dull brick reflect light well or poorly? (a) reflects light well (b) reflects light poorly
26. 26.🧺 Three of these are needed for the periscope. Which one is NOT needed? (a) a pencil (b) sticky tape (c) an empty juice carton (d) a magnet
27. 27.🔭 Which of these reflects light poorly? (a) a shiny steel plate (b) dark soil (c) still clear water (d) a mirror
28. 28.🔭 Which of these reflects light well? (a) black cloth (b) aluminium foil (c) a rough wooden board (d) a dull brick
29. 29.True or false: dark soil reflects light poorly. (a) False (b) True
30. 30.🔍 Which is the odd one out? (a) a dull brick (b) a shiny steel plate (c) a rough wooden board (d) black cloth
31. 31.🧺 Three of these are needed for the periscope. Which one is NOT needed? (a) a pencil (b) vinegar (c) an empty juice carton (d) a ruler
32. 32.🧺 Do we need vinegar for the periscope? (a) not needed (b) needed
33. 33.⚖️ 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 keep it the same (b) we measure it (c) we change it
34. 34.True or false: two small mirrors is not needed for the periscope. (a) True (b) False
35. 35.🛟 Who should cut the holes in the juice carton? (a) a friend who is running (b) nobody needs to (c) the youngest child (d) a grown-up
36. 36.True or false: yeast is not needed for the periscope. (a) False (b) True
37. 37.🔭 Why must the two mirrors face each other and be parallel? (a) so it can float (b) so it looks shiny (c) so light reaches the eye (d) to make it heavy
38. 38.🔭 How many mirrors does a simple periscope use?
39. 39.⚖️ Fair test — does the angle of the mirrors change how clearly you see? True or false: the angle of the mirrors is what we measure. (a) True (b) False
40. 40.True or false: sticky tape is not needed for the periscope. (a) False (b) True

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