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Shadow and Sundial Experiment Worksheet

Science experiments lesson 27: Shadows and a sundial · Set 460 · 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? True or false: the time of day is kept the same. (a) False (b) True
  2. 2.⚖️ 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 change it (c) we keep it the same
  3. 3.🌞 When is a stick’s shadow the shortest? (a) late evening (b) early morning (c) at night (d) around noon
  4. 4.⚖️ Fair test — how does the shadow of a stick change through the day? True or false: the same stick is what we measure. (a) True (b) False
  5. 5.🧺 Three of these are needed for the shadow clock. Which one is NOT needed? (a) a sunny open place (b) a straight stick (c) yeast (d) a clock to check
  6. 6.🔮 Predict: you move a torch closer to your hand. The shadow on the wall gets ___. (a) coloured (b) brighter (c) bigger (d) smaller
  7. 7.🔦 Is a book opaque, translucent or transparent? (a) translucent (b) transparent (c) opaque
  8. 8.True or false: a straight stick is not needed for the shadow clock. (a) True (b) False
  9. 9.⚖️ Fair test — how does the shadow of a stick change through the day? Which of these is the one thing we change? (a) the same spot (b) the stick kept upright (c) the same stick (d) the time of day
  10. 10.🧺 Do we need a sunny open place for the shadow clock? (a) needed (b) not needed
  11. 11.🕰️ What is a sundial used for? (a) making rainbows (b) telling the time (c) weighing things (d) measuring rain
  12. 12.True or false: clear glass is transparent. (a) False (b) True
  13. 13.True or false: a wooden board is opaque. (a) True (b) False
  14. 14.⚖️ 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
  15. 15.True or false: a battery cell is needed for the shadow clock. (a) False (b) True
  16. 16.🔍 Which is the odd one out? (a) a wooden board (b) oily paper (c) a brick (d) your hand
  17. 17.🧺 Which of these is needed for the shadow clock? (a) turmeric powder (b) a mirror (c) a straight stick (d) yeast
  18. 18.True or false: yeast is needed for the shadow clock. (a) False (b) True
  19. 19.🧺 Three of these are needed for the shadow clock. Which one is NOT needed? (a) a clock to check (b) a magnet (c) a straight stick (d) a sunny open place
  20. 20.True or false: oily paper is translucent. (a) False (b) True
  21. 21.True or false: turmeric powder is not needed for the shadow clock. (a) True (b) False
  22. 22.True or false: a balloon is needed for the shadow clock. (a) True (b) False
  23. 23.True or false: air is opaque. (a) True (b) False
  24. 24.⚖️ 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
  25. 25.⚖️ Fair test — how does the shadow of a stick change through the day? Which of these is kept the same? (a) the stick kept upright (b) shadow length (c) the time of day
  26. 26.🧺 Do we need a battery cell for the shadow clock? (a) needed (b) not needed
  27. 27.🧺 Three of these are needed for the shadow clock. Which one is NOT needed? (a) a sunny open place (b) a straight stick (c) a clock to check (d) a mirror
  28. 28.🧺 Do we need a clock to check for the shadow clock? (a) not needed (b) needed
  29. 29.⚖️ Fair test — how does the shadow of a stick change through the day? True or false: the stick kept upright is what we measure. (a) True (b) False
  30. 30.🔦 Is tissue paper opaque, translucent or transparent? (a) translucent (b) transparent (c) opaque
  31. 31.🧺 Which of these is needed for the shadow clock? (a) a clock to check (b) a balloon (c) a battery cell (d) a magnet
  32. 32.🧺 Which of these is not needed for the shadow clock? (a) a straight stick (b) chalk to mark shadows (c) turmeric powder (d) a sunny open place
  33. 33.⚖️ Fair test — how does the shadow of a stick change through the day? Which of these is what we measure? (a) the stick kept upright (b) the time of day (c) shadow length (d) the same stick
  34. 34.True or false: a book is opaque. (a) True (b) False
  35. 35.⚖️ 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
  36. 36.🔍 Which is the odd one out? (a) a brick (b) a steel plate (c) your hand (d) air
  37. 37.🔍 Which is the odd one out? (a) a brick (b) tissue paper (c) butter paper (d) frosted glass
  38. 38.🧺 Do we need chalk to mark shadows for the shadow clock? (a) not needed (b) needed
  39. 39.⚖️ 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
  40. 40.🧺 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 mirror

Answer key

  1. False
  2. we keep it the same
  3. around noon
  4. False
  5. yeast
  6. bigger
  7. opaque
  8. False
  9. the time of day
  10. needed
  11. telling the time
  12. True
  13. True
  14. False
  15. False
  16. oily paper
  17. a straight stick
  18. False
  19. a magnet
  20. True
  21. True
  22. False
  23. False
  24. we measure it
  25. the stick kept upright
  26. not needed
  27. a mirror
  28. needed
  29. False
  30. translucent
  31. a clock to check
  32. turmeric powder
  33. shadow length
  34. True
  35. we change it
  36. air
  37. a brick
  38. needed
  39. the same spot
  40. a mirror

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