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Shadow and Sundial Experiment Worksheet

Science experiments lesson 27: Shadows and a sundial · Set 862 · 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.True or false: yeast is needed for the shadow clock. (a) True (b) False
  2. 2.⚖️ Fair test — how does the shadow of a stick change through the day? Which of these is kept the same? (a) the time of day (b) shadow length (c) the stick kept upright
  3. 3.🔦 Which of these is translucent? (a) frosted glass (b) a brick (c) clear glass (d) a book
  4. 4.⚖️ Fair test — how does the shadow of a stick change through the day? Which of these is kept the same? (a) shadow length (b) the same stick (c) the time of day
  5. 5.⚖️ Fair test — how does the shadow of a stick change through the day? What do we do with “the stick kept upright”? (a) we measure it (b) we keep it the same (c) we change it
  6. 6.⚖️ Fair test — how does the shadow of a stick change through the day? What do we do with “the same stick”? (a) we keep it the same (b) we change it (c) we measure it
  7. 7.True or false: yeast is not needed for the shadow clock. (a) False (b) True
  8. 8.True or false: clean water is opaque. (a) True (b) False
  9. 9.⚖️ Fair test — how does the shadow of a stick change through the day? What do we do with “the time of day”? (a) we measure it (b) we change it (c) we keep it the same
  10. 10.True or false: chalk to mark shadows is not needed for the shadow clock. (a) True (b) False
  11. 11.True or false: a battery cell is not needed for the shadow clock. (a) True (b) False
  12. 12.🧺 Three of these are needed for the shadow clock. Which one is NOT needed? (a) a straight stick (b) a clock to check (c) a battery cell (d) a sunny open place
  13. 13.🧺 Three of these are needed for the shadow clock. Which one is NOT needed? (a) a straight stick (b) a mirror (c) chalk to mark shadows (d) a clock to check
  14. 14.True or false: a steel plate is translucent. (a) True (b) False
  15. 15.🛟 While watching shadows outdoors, what must you never do? (a) wear a cap (b) look straight at the Sun (c) sit in the shade (d) mark with chalk
  16. 16.True or false: a wooden board is translucent. (a) False (b) True
  17. 17.⚖️ Fair test — how does the shadow of a stick change through the day? Which of these is what we measure? (a) the time of day (b) shadow length (c) the same stick (d) the same spot
  18. 18.🧺 Do we need a sunny open place for the shadow clock? (a) not needed (b) needed
  19. 19.True or false: a clock to check is needed for the shadow clock. (a) False (b) True
  20. 20.🔍 Which is the odd one out? (a) a brick (b) a steel plate (c) a book (d) butter paper
  21. 21.True or false: butter paper is opaque. (a) False (b) True
  22. 22.🌅 In the morning the Sun is in the east. Which way does a shadow point? (a) west (b) up (c) east (d) north
  23. 23.🔮 Predict: the Sun is low in the evening sky. The stick’s shadow is ___. (a) long (b) missing (c) round (d) short
  24. 24.🔦 Which of these is opaque? (a) air (b) tissue paper (c) clear plastic film (d) a book
  25. 25.⚖️ Fair test — how does the shadow of a stick change through the day? What do we do with “the same spot”? (a) we measure it (b) we keep it the same (c) we change it
  26. 26.📘 Why does a shadow form? (a) the object is cold (b) the ground is dark (c) light bends round it (d) an object blocks light
  27. 27.🔦 Which of these is opaque? (a) butter paper (b) a wooden board (c) oily paper (d) clear glass
  28. 28.🧺 Do we need a battery cell for the shadow clock? (a) not needed (b) needed
  29. 29.🔍 Which is the odd one out? (a) tissue paper (b) butter paper (c) oily paper (d) a steel plate
  30. 30.🧺 Which of these is needed for the shadow clock? (a) a mirror (b) a sunny open place (c) a magnet (d) a balloon
  31. 31.🔍 Which is the odd one out? (a) a steel plate (b) a book (c) a wooden board (d) tissue paper
  32. 32.🧺 Which of these is not needed for the shadow clock? (a) a battery cell (b) a sunny open place (c) a straight stick (d) chalk to mark shadows
  33. 33.🧺 Which of these is not needed for the shadow clock? (a) a straight stick (b) a clock to check (c) a mirror (d) chalk to mark shadows
  34. 34.🔦 Is a wooden board opaque, translucent or transparent? (a) translucent (b) opaque (c) transparent
  35. 35.🧺 Which of these is not needed for the shadow clock? (a) a straight stick (b) a sunny open place (c) chalk to mark shadows (d) yeast
  36. 36.🧺 Do we need a clock to check for the shadow clock? (a) needed (b) not needed
  37. 37.🧺 Three of these are needed for the shadow clock. Which one is NOT needed? (a) a clock to check (b) a straight stick (c) yeast (d) chalk to mark shadows
  38. 38.⚖️ 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
  39. 39.True or false: oily paper is translucent. (a) True (b) False
  40. 40.🧺 Do we need chalk to mark shadows for the shadow clock? (a) needed (b) not needed

Answer key

  1. False
  2. the stick kept upright
  3. frosted glass
  4. the same stick
  5. we keep it the same
  6. we keep it the same
  7. True
  8. False
  9. we change it
  10. False
  11. True
  12. a battery cell
  13. a mirror
  14. False
  15. look straight at the Sun
  16. False
  17. shadow length
  18. needed
  19. True
  20. butter paper
  21. False
  22. west
  23. long
  24. a book
  25. we keep it the same
  26. an object blocks light
  27. a wooden board
  28. not needed
  29. a steel plate
  30. a sunny open place
  31. tissue paper
  32. a battery cell
  33. a mirror
  34. opaque
  35. yeast
  36. needed
  37. yeast
  38. True
  39. True
  40. needed

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