Periscope STEM Project Worksheet

Science experiments lesson 28: Mirror periscope · Set 262 · 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: how clear the view is is kept the same. (a) False (b) True
2. 2.⚖️ Fair test — does the angle of the mirrors change how clearly you see? True or false: the same light is what we measure. (a) True (b) False
3. 3.⚖️ Fair test — does the angle of the mirrors change how clearly you see? Which of these is the one thing we change? (a) the angle of the mirrors (b) the object we look at (c) the same carton (d) the same light
4. 4.🧺 Three of these are needed for the periscope. Which one is NOT needed? (a) two small mirrors (b) sticky tape (c) an empty juice carton (d) yeast
5. 5.True or false: yeast is needed for the periscope. (a) True (b) False
6. 6.⚖️ Fair test — does the angle of the mirrors change how clearly you see? Which of these is kept the same? (a) the same light (b) how clear the view is (c) the angle of the mirrors
7. 7.⚖️ Fair test — does the angle of the mirrors change how clearly you see? What do we do with “the same light”? (a) we measure it (b) we change it (c) we keep it the same
8. 8.🧺 Three of these are needed for the periscope. Which one is NOT needed? (a) an empty juice carton (b) a pencil (c) a ruler (d) a balloon
9. 9.🧺 Do we need a balloon for the periscope? (a) not needed (b) needed
10. 10.⚖️ 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
11. 11.🔭 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
12. 12.⚖️ 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) how clear the view is (d) the same mirrors
13. 13.⚖️ 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
14. 14.🧺 Which of these is not needed for the periscope? (a) two small mirrors (b) yeast (c) sticky tape (d) a pencil
15. 15.🧺 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
16. 16.True or false: sticky tape is not needed for the periscope. (a) True (b) False
17. 17.🔭 Does dark soil reflect light well or poorly? (a) reflects light well (b) reflects light poorly
18. 18.🧺 Three of these are needed for the periscope. Which one is NOT needed? (a) sticky tape (b) turmeric powder (c) an empty juice carton (d) two small mirrors
19. 19.🧺 Which of these is needed for the periscope? (a) a battery cell (b) yeast (c) a balloon (d) an empty juice carton
20. 20.⚖️ 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
21. 21.🔭 What does a periscope let you do? (a) hear far sounds (b) see over a wall (c) see germs (d) see in the dark
22. 22.True or false: a shiny steel plate reflects light well. (a) False (b) True
23. 23.🔭 How many times does light bounce off a mirror in a simple periscope?
24. 24.🔮 Predict: you hold a written word up to a mirror. The letters look ___. (a) upside down only (b) in colour (c) flipped left to right (d) much bigger
25. 25.🧺 Do we need turmeric powder for the periscope? (a) needed (b) not needed
26. 26.🧺 Do we need vinegar for the periscope? (a) not needed (b) needed
27. 27.🧺 Do we need a pencil for the periscope? (a) needed (b) not needed
28. 28.🔭 How many mirrors does a simple periscope use?
29. 29.⚖️ Fair test — does the angle of the mirrors change how clearly you see? True or false: how clear the view is is the one thing we change. (a) True (b) False
30. 30.🔍 Which is the odd one out? (a) dark soil (b) still clear water (c) a dull brick (d) black cloth
31. 31.True or false: two small mirrors is needed for the periscope. (a) False (b) True
32. 32.🔭 Does aluminium foil reflect light well or poorly? (a) reflects light well (b) reflects light poorly
33. 33.True or false: two small mirrors is not needed for the periscope. (a) False (b) True
34. 34.🔍 Which is the odd one out? (a) a mirror (b) still clear water (c) black cloth (d) a shiny steel plate
35. 35.🧺 Which of these is not needed for the periscope? (a) two small mirrors (b) a magnet (c) a pencil (d) sticky tape
36. 36.🛟 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
37. 37.True or false: a dull brick reflects light poorly. (a) False (b) True
38. 38.🔭 Does black cloth reflect light well or poorly? (a) reflects light well (b) reflects light poorly
39. 39.🧺 Three of these are needed for the periscope. Which one is NOT needed? (a) a pencil (b) sticky tape (c) a magnet (d) a ruler
40. 40.🛟 Who should cut the holes in the juice carton? (a) the youngest child (b) nobody needs to (c) a grown-up (d) a friend who is running

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