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Shadow and Sundial Experiment Worksheet

Science experiments lesson 27: Shadows and a sundial · Set 162 · 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.

NameDateTime takenScore ___ / 40
  1. 1.🧺 Which of these is needed for the shadow clock? (a) yeast (b) a mirror (c) chalk to mark shadows (d) turmeric powder
  2. 2.📘 Why does a shadow form? (a) light bends round it (b) the ground is dark (c) the object is cold (d) an object blocks light
  3. 3.⚖️ 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
  4. 4.🧺 Do we need chalk to mark shadows for the shadow clock? (a) needed (b) not needed
  5. 5.True or false: a sunny open place is not needed for the shadow clock. (a) False (b) True
  6. 6.🧺 Which of these is needed for the shadow clock? (a) yeast (b) a mirror (c) a battery cell (d) a straight stick
  7. 7.True or false: a straight stick is needed for the shadow clock. (a) False (b) True
  8. 8.True or false: chalk to mark shadows is needed for the shadow clock. (a) True (b) False
  9. 9.🛟 While watching shadows outdoors, what must you never do? (a) mark with chalk (b) look straight at the Sun (c) sit in the shade (d) wear a cap
  10. 10.True or false: a battery cell is not needed for the shadow clock. (a) False (b) True
  11. 11.🧺 Do we need yeast for the shadow clock? (a) needed (b) not needed
  12. 12.🔦 Is a wooden board opaque, translucent or transparent? (a) translucent (b) opaque (c) transparent
  13. 13.🧺 Three of these are needed for the shadow clock. Which one is NOT needed? (a) a clock to check (b) chalk to mark shadows (c) turmeric powder (d) a sunny open place
  14. 14.🧺 Which of these is not needed for the shadow clock? (a) chalk to mark shadows (b) a battery cell (c) a clock to check (d) a straight stick
  15. 15.🧺 Which of these is not needed for the shadow clock? (a) a straight stick (b) chalk to mark shadows (c) a sunny open place (d) yeast
  16. 16.🧺 Three of these are needed for the shadow clock. Which one is NOT needed? (a) a clock to check (b) a sunny open place (c) a mirror (d) chalk to mark shadows
  17. 17.True or false: a clock to check is needed for the shadow clock. (a) True (b) False
  18. 18.⚖️ Fair test — how does the shadow of a stick change through the day? What do we do with “the time of day”? (a) we change it (b) we keep it the same (c) we measure it
  19. 19.🧺 Do we need a battery cell for the shadow clock? (a) needed (b) not needed
  20. 20.⚖️ Fair test — how does the shadow of a stick change through the day? What do we do with “shadow length”? (a) we keep it the same (b) we measure it (c) we change it
  21. 21.🔮 Predict: the Sun is low in the evening sky. The stick’s shadow is ___. (a) round (b) long (c) short (d) missing
  22. 22.🧺 Three of these are needed for the shadow clock. Which one is NOT needed? (a) yeast (b) a sunny open place (c) chalk to mark shadows (d) a straight stick
  23. 23.🔦 Which of these is transparent? (a) oily paper (b) clear glass (c) a brick (d) your hand
  24. 24.⚖️ Fair test — how does the shadow of a stick change through the day? Which of these is the one thing we change? (a) shadow length (b) the time of day (c) the stick kept upright (d) the same spot
  25. 25.🧺 Which of these is not needed for the shadow clock? (a) a sunny open place (b) a straight stick (c) a clock to check (d) a balloon
  26. 26.🧺 Three of these are needed for the shadow clock. Which one is NOT needed? (a) a straight stick (b) chalk to mark shadows (c) a clock to check (d) a balloon
  27. 27.True or false: clear glass is transparent. (a) True (b) False
  28. 28.🔦 Which of these is translucent? (a) a steel plate (b) clean water (c) butter paper (d) clear plastic film
  29. 29.🔍 Which is the odd one out? (a) clear glass (b) a book (c) a brick (d) a wooden board
  30. 30.🔦 Is a steel plate opaque, translucent or transparent? (a) opaque (b) transparent (c) translucent
  31. 31.True or false: air is translucent. (a) False (b) True
  32. 32.🌞 When is a stick’s shadow the shortest? (a) early morning (b) late evening (c) at night (d) around noon
  33. 33.⚖️ Fair test — how does the shadow of a stick change through the day? True or false: shadow length is the one thing we change. (a) False (b) True
  34. 34.🧺 Which of these is not needed for the shadow clock? (a) a sunny open place (b) chalk to mark shadows (c) turmeric powder (d) a clock to check
  35. 35.🔦 Is butter paper opaque, translucent or transparent? (a) translucent (b) opaque (c) transparent
  36. 36.🔦 Is oily paper opaque, translucent or transparent? (a) translucent (b) opaque (c) transparent
  37. 37.⚖️ Fair test — how does the shadow of a stick change through the day? True or false: the same stick is kept the same. (a) False (b) True
  38. 38.True or false: clean water is transparent. (a) False (b) True
  39. 39.True or false: butter paper is transparent. (a) True (b) False
  40. 40.🧺 Which of these is needed for the shadow clock? (a) a battery cell (b) a sunny open place (c) a mirror (d) yeast

Answer key

  1. chalk to mark shadows
  2. an object blocks light
  3. we keep it the same
  4. needed
  5. False
  6. a straight stick
  7. True
  8. True
  9. look straight at the Sun
  10. True
  11. not needed
  12. opaque
  13. turmeric powder
  14. a battery cell
  15. yeast
  16. a mirror
  17. True
  18. we change it
  19. not needed
  20. we measure it
  21. long
  22. yeast
  23. clear glass
  24. the time of day
  25. a balloon
  26. a balloon
  27. True
  28. butter paper
  29. clear glass
  30. opaque
  31. False
  32. around noon
  33. False
  34. turmeric powder
  35. translucent
  36. translucent
  37. True
  38. True
  39. False
  40. a sunny open place

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