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Shadow and Sundial Experiment Worksheet

Science experiments lesson 27: Shadows and a sundial · Set 129 · 40 questions
TalentJR

What you do (Shadows point away from the Sun): 1. Stand the stick upright in the ground in an open sunny place. 2. Every hour, mark the tip of the shadow with chalk and write the time. 3. Measure the length of each shadow. 4. Wear a cap and never look straight at the Sun.

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  1. 1.🔦 Which of these is opaque? (a) a wooden board (b) oily paper (c) tissue paper (d) frosted glass
  2. 2.🔦 Is a steel plate opaque, translucent or transparent? (a) translucent (b) transparent (c) opaque
  3. 3.True or false: a brick is translucent. (a) True (b) False
  4. 4.True or false: a battery cell is not needed for the shadow clock. (a) False (b) True
  5. 5.🔍 Which is the odd one out? (a) a book (b) clean water (c) a steel plate (d) a wooden board
  6. 6.🧺 Do we need turmeric powder for the shadow clock? (a) needed (b) not needed
  7. 7.🧺 Which of these is needed for the shadow clock? (a) a balloon (b) a straight stick (c) a battery cell (d) a mirror
  8. 8.🧺 Do we need a balloon for the shadow clock? (a) not needed (b) needed
  9. 9.⚖️ Fair test — how does the shadow of a stick change through the day? What do we do with “the same spot”? (a) we change it (b) we measure it (c) we keep it the same
  10. 10.True or false: a battery cell is needed for the shadow clock. (a) True (b) False
  11. 11.⚖️ Fair test — how does the shadow of a stick change through the day? What do we do with “shadow length”? (a) we change it (b) we keep it the same (c) we measure it
  12. 12.⚖️ Fair test — how does the shadow of a stick change through the day? What do we do with “the same stick”? (a) we change it (b) we measure it (c) we keep it the same
  13. 13.🧺 Which of these is not needed for the shadow clock? (a) a magnet (b) a clock to check (c) a sunny open place (d) a straight stick
  14. 14.🔦 Which of these is opaque? (a) clean water (b) frosted glass (c) a steel plate (d) clear glass
  15. 15.True or false: turmeric powder is not needed for the shadow clock. (a) False (b) True
  16. 16.True or false: chalk to mark shadows is not needed for the shadow clock. (a) True (b) False
  17. 17.🧺 Three of these are needed for the shadow clock. Which one is NOT needed? (a) a balloon (b) a sunny open place (c) a straight stick (d) a clock to check
  18. 18.⚖️ Fair test — how does the shadow of a stick change through the day? Which of these is what we measure? (a) shadow length (b) the time of day (c) the same stick (d) the stick kept upright
  19. 19.True or false: a sunny open place is needed for the shadow clock. (a) False (b) True
  20. 20.⚖️ Fair test — how does the shadow of a stick change through the day? True or false: shadow length is what we measure. (a) False (b) True
  21. 21.⚖️ Fair test — how does the shadow of a stick change through the day? True or false: the same stick is what we measure. (a) False (b) True
  22. 22.🧺 Do we need a clock to check for the shadow clock? (a) needed (b) not needed
  23. 23.True or false: clear glass is transparent. (a) True (b) False
  24. 24.🔦 Which of these is transparent? (a) oily paper (b) a wooden board (c) a book (d) clear glass
  25. 25.True or false: a wooden board is opaque. (a) False (b) True
  26. 26.🔦 Is a brick opaque, translucent or transparent? (a) translucent (b) transparent (c) opaque
  27. 27.True or false: a balloon is needed for the shadow clock. (a) False (b) True
  28. 28.True or false: a sunny open place is not needed for the shadow clock. (a) False (b) True
  29. 29.🧺 Do we need a battery cell for the shadow clock? (a) not needed (b) needed
  30. 30.🛟 While watching shadows outdoors, what must you never do? (a) wear a cap (b) sit in the shade (c) look straight at the Sun (d) mark with chalk
  31. 31.True or false: butter paper is transparent. (a) False (b) True
  32. 32.🔦 Which of these is opaque? (a) butter paper (b) your hand (c) oily paper (d) air
  33. 33.🔦 Which of these is transparent? (a) a wooden board (b) air (c) butter paper (d) your hand
  34. 34.🧺 Which of these is not needed for the shadow clock? (a) a straight stick (b) yeast (c) a sunny open place (d) a clock to check
  35. 35.🔦 Is clean water opaque, translucent or transparent? (a) translucent (b) transparent (c) opaque
  36. 36.True or false: tissue paper is opaque. (a) False (b) True
  37. 37.🧺 Which of these is needed for the shadow clock? (a) turmeric powder (b) a balloon (c) a sunny open place (d) a battery cell
  38. 38.🧺 Which of these is needed for the shadow clock? (a) turmeric powder (b) a mirror (c) a battery cell (d) a clock to check
  39. 39.🌅 In the morning the Sun is in the east. Which way does a shadow point? (a) north (b) up (c) west (d) east
  40. 40.🔦 Which of these is opaque? (a) frosted glass (b) tissue paper (c) a book (d) clean water

Answer key

  1. a wooden board
  2. opaque
  3. False
  4. True
  5. clean water
  6. not needed
  7. a straight stick
  8. not needed
  9. we keep it the same
  10. False
  11. we measure it
  12. we keep it the same
  13. a magnet
  14. a steel plate
  15. True
  16. False
  17. a balloon
  18. shadow length
  19. True
  20. True
  21. False
  22. needed
  23. True
  24. clear glass
  25. True
  26. opaque
  27. False
  28. False
  29. not needed
  30. look straight at the Sun
  31. False
  32. your hand
  33. air
  34. yeast
  35. transparent
  36. False
  37. a sunny open place
  38. a clock to check
  39. west
  40. a book

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