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Shadow and Sundial Experiment Worksheet

Science experiments lesson 27: Shadows and a sundial · Set 218 · 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.⚖️ 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
  2. 2.🧺 Do we need a mirror for the shadow clock? (a) not needed (b) needed
  3. 3.🔦 Is clean water opaque, translucent or transparent? (a) transparent (b) translucent (c) opaque
  4. 4.🧺 Three of these are needed for the shadow clock. Which one is NOT needed? (a) a mirror (b) chalk to mark shadows (c) a sunny open place (d) a straight stick
  5. 5.⚖️ Fair test — how does the shadow of a stick change through the day? True or false: the stick kept upright is the one thing we change. (a) False (b) True
  6. 6.🧺 Which of these is needed for the shadow clock? (a) a straight stick (b) a magnet (c) yeast (d) a balloon
  7. 7.⚖️ 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 time of day (c) the same stick
  8. 8.🔮 Predict: the Sun is low in the evening sky. The stick’s shadow is ___. (a) round (b) short (c) long (d) missing
  9. 9.🧺 Do we need chalk to mark shadows for the shadow clock? (a) needed (b) not needed
  10. 10.⚖️ Fair test — how does the shadow of a stick change through the day? True or false: the same spot is what we measure. (a) False (b) True
  11. 11.🧺 Which of these is needed for the shadow clock? (a) a mirror (b) chalk to mark shadows (c) a magnet (d) a balloon
  12. 12.True or false: a book is transparent. (a) False (b) True
  13. 13.🧺 Three of these are needed for the shadow clock. Which one is NOT needed? (a) a battery cell (b) a sunny open place (c) a clock to check (d) chalk to mark shadows
  14. 14.True or false: turmeric powder is needed for the shadow clock. (a) True (b) False
  15. 15.🧺 Which of these is needed for the shadow clock? (a) a magnet (b) a battery cell (c) a sunny open place (d) turmeric powder
  16. 16.🔍 Which is the odd one out? (a) clean water (b) your hand (c) clear plastic film (d) air
  17. 17.True or false: a balloon is needed for the shadow clock. (a) True (b) False
  18. 18.🔍 Which is the odd one out? (a) your hand (b) a wooden board (c) clean water (d) a steel plate
  19. 19.⚖️ Fair test — how does the shadow of a stick change through the day? What do we do with “the time of day”? (a) we keep it the same (b) we change it (c) we measure it
  20. 20.🔦 Which of these is transparent? (a) a brick (b) a steel plate (c) your hand (d) clean water
  21. 21.🔦 Is a brick opaque, translucent or transparent? (a) opaque (b) transparent (c) translucent
  22. 22.🧺 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) a balloon (d) a straight stick
  23. 23.🔍 Which is the odd one out? (a) a steel plate (b) a book (c) a wooden board (d) butter paper
  24. 24.🔦 Which of these is translucent? (a) tissue paper (b) clear glass (c) clean water (d) a steel plate
  25. 25.🔍 Which is the odd one out? (a) a brick (b) frosted glass (c) a steel plate (d) a wooden board
  26. 26.True or false: clean water is transparent. (a) True (b) False
  27. 27.📘 Why does a shadow form? (a) the object is cold (b) an object blocks light (c) light bends round it (d) the ground is dark
  28. 28.🔦 Is a wooden board opaque, translucent or transparent? (a) translucent (b) opaque (c) transparent
  29. 29.True or false: turmeric powder is not needed for the shadow clock. (a) True (b) False
  30. 30.🧺 Do we need a clock to check for the shadow clock? (a) needed (b) not needed
  31. 31.🛟 While watching shadows outdoors, what must you never do? (a) look straight at the Sun (b) wear a cap (c) mark with chalk (d) sit in the shade
  32. 32.True or false: a wooden board is opaque. (a) False (b) True
  33. 33.🔍 Which is the odd one out? (a) clear glass (b) air (c) a book (d) clean water
  34. 34.🔍 Which is the odd one out? (a) clear plastic film (b) air (c) clean water (d) tissue paper
  35. 35.⚖️ Fair test — how does the shadow of a stick change through the day? Which of these is the one thing we change? (a) the stick kept upright (b) the time of day (c) the same stick (d) the same spot
  36. 36.🧺 Which of these is not needed for the shadow clock? (a) a straight stick (b) a clock to check (c) chalk to mark shadows (d) a magnet
  37. 37.🧺 Do we need a sunny open place for the shadow clock? (a) needed (b) not needed
  38. 38.True or false: a straight stick is needed for the shadow clock. (a) True (b) False
  39. 39.True or false: clear plastic film is transparent. (a) True (b) False
  40. 40.🔦 Is clear plastic film opaque, translucent or transparent? (a) translucent (b) transparent (c) opaque

Answer key

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

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