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Shadow and Sundial Experiment Worksheet

Science experiments lesson 27: Shadows and a sundial · Set 532 · 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 time of day”? (a) we measure it (b) we keep it the same (c) we change it
  2. 2.🧺 Three of these are needed for the shadow clock. Which one is NOT needed? (a) a clock to check (b) yeast (c) a sunny open place (d) chalk to mark shadows
  3. 3.⚖️ Fair test — how does the shadow of a stick change through the day? True or false: the time of day is the one thing we change. (a) True (b) False
  4. 4.True or false: clear glass is translucent. (a) False (b) True
  5. 5.🔮 Predict: you move a torch closer to your hand. The shadow on the wall gets ___. (a) coloured (b) smaller (c) brighter (d) bigger
  6. 6.🧺 Which of these is needed for the shadow clock? (a) a clock to check (b) a mirror (c) turmeric powder (d) a balloon
  7. 7.True or false: a wooden board is opaque. (a) True (b) False
  8. 8.🧺 Do we need turmeric powder for the shadow clock? (a) needed (b) not needed
  9. 9.🔦 Which of these is opaque? (a) a book (b) tissue paper (c) clear plastic film (d) clean water
  10. 10.⚖️ Fair test — how does the shadow of a stick change through the day? Which of these is what we measure? (a) the same stick (b) the time of day (c) shadow length (d) the same spot
  11. 11.🧺 Do we need a sunny open place for the shadow clock? (a) not needed (b) needed
  12. 12.⚖️ Fair test — how does the shadow of a stick change through the day? Which of these is kept the same? (a) the same spot (b) shadow length (c) the time of day
  13. 13.🧺 Do we need a clock to check for the shadow clock? (a) needed (b) not needed
  14. 14.🔍 Which is the odd one out? (a) clear glass (b) air (c) clear plastic film (d) butter paper
  15. 15.True or false: a magnet is needed for the shadow clock. (a) True (b) False
  16. 16.🧺 Do we need yeast for the shadow clock? (a) needed (b) not needed
  17. 17.🧺 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 balloon (d) a clock to check
  18. 18.🧺 Do we need a magnet for the shadow clock? (a) not needed (b) needed
  19. 19.🧺 Which of these is not needed for the shadow clock? (a) a straight stick (b) chalk to mark shadows (c) yeast (d) a sunny open place
  20. 20.🔦 Is clear plastic film opaque, translucent or transparent? (a) opaque (b) translucent (c) transparent
  21. 21.🛟 While watching shadows outdoors, what must you never do? (a) look straight at the Sun (b) sit in the shade (c) wear a cap (d) mark with chalk
  22. 22.⚖️ 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
  23. 23.🔍 Which is the odd one out? (a) a brick (b) a book (c) oily paper (d) your hand
  24. 24.🔍 Which is the odd one out? (a) tissue paper (b) butter paper (c) frosted glass (d) clean water
  25. 25.🔍 Which is the odd one out? (a) a brick (b) a steel plate (c) clear plastic film (d) a wooden board
  26. 26.⚖️ Fair test — how does the shadow of a stick change through the day? True or false: the stick kept upright is kept the same. (a) True (b) False
  27. 27.🧺 Do we need chalk to mark shadows for the shadow clock? (a) not needed (b) needed
  28. 28.True or false: a clock to check is not needed for the shadow clock. (a) False (b) True
  29. 29.🧺 Which of these is needed for the shadow clock? (a) a straight stick (b) a magnet (c) a balloon (d) a battery cell
  30. 30.True or false: air is transparent. (a) False (b) True
  31. 31.🌞 When is a stick’s shadow the shortest? (a) early morning (b) late evening (c) around noon (d) at night
  32. 32.🔍 Which is the odd one out? (a) a wooden board (b) your hand (c) frosted glass (d) a book
  33. 33.🧺 Which of these is needed for the shadow clock? (a) yeast (b) a balloon (c) a battery cell (d) chalk to mark shadows
  34. 34.🔦 Is a book opaque, translucent or transparent? (a) opaque (b) transparent (c) translucent
  35. 35.🔦 Is frosted glass opaque, translucent or transparent? (a) transparent (b) opaque (c) translucent
  36. 36.⚖️ 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
  37. 37.🔦 Is a brick opaque, translucent or transparent? (a) translucent (b) opaque (c) transparent
  38. 38.🔍 Which is the odd one out? (a) tissue paper (b) frosted glass (c) a brick (d) oily paper
  39. 39.True or false: your hand is transparent. (a) True (b) False
  40. 40.True or false: a book is opaque. (a) True (b) False

Answer key

  1. we change it
  2. yeast
  3. True
  4. False
  5. bigger
  6. a clock to check
  7. True
  8. not needed
  9. a book
  10. shadow length
  11. needed
  12. the same spot
  13. needed
  14. butter paper
  15. False
  16. not needed
  17. a balloon
  18. not needed
  19. yeast
  20. transparent
  21. look straight at the Sun
  22. we measure it
  23. oily paper
  24. clean water
  25. clear plastic film
  26. True
  27. needed
  28. False
  29. a straight stick
  30. True
  31. around noon
  32. frosted glass
  33. chalk to mark shadows
  34. opaque
  35. translucent
  36. the time of day
  37. opaque
  38. a brick
  39. False
  40. True

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