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Shadow and Sundial Experiment Worksheet

Science experiments lesson 27: Shadows and a sundial · Set 641 · 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: a balloon is needed for the shadow clock. (a) True (b) False
  2. 2.🔦 Is a steel plate opaque, translucent or transparent? (a) opaque (b) translucent (c) transparent
  3. 3.True or false: a clock to check is not needed for the shadow clock. (a) True (b) False
  4. 4.🔦 Is a brick opaque, translucent or transparent? (a) transparent (b) translucent (c) opaque
  5. 5.True or false: a brick is opaque. (a) True (b) False
  6. 6.🌅 In the morning the Sun is in the east. Which way does a shadow point? (a) north (b) up (c) east (d) west
  7. 7.⚖️ 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 measure it (c) we keep it the same
  8. 8.🔍 Which is the odd one out? (a) frosted glass (b) butter paper (c) air (d) oily paper
  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 stick (b) the time of day (c) the stick kept upright (d) the same spot
  10. 10.True or false: a sunny open place is not needed for the shadow clock. (a) True (b) False
  11. 11.🛟 While watching shadows outdoors, what must you never do? (a) look straight at the Sun (b) mark with chalk (c) wear a cap (d) sit in the shade
  12. 12.⚖️ 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
  13. 13.True or false: a mirror is needed for the shadow clock. (a) True (b) False
  14. 14.🔦 Is a book opaque, translucent or transparent? (a) translucent (b) opaque (c) transparent
  15. 15.⚖️ 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) the same stick (c) shadow length
  16. 16.⚖️ 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 measure it (c) we keep it the same
  17. 17.🔍 Which is the odd one out? (a) your hand (b) a wooden board (c) a book (d) clear glass
  18. 18.🔦 Which of these is opaque? (a) air (b) a steel plate (c) tissue paper (d) clear glass
  19. 19.🧺 Three of these are needed for the shadow clock. Which one is NOT needed? (a) a sunny open place (b) a battery cell (c) chalk to mark shadows (d) a clock to check
  20. 20.🔮 Predict: you move a torch closer to your hand. The shadow on the wall gets ___. (a) brighter (b) coloured (c) bigger (d) smaller
  21. 21.🕰️ What is a sundial used for? (a) weighing things (b) measuring rain (c) making rainbows (d) telling the time
  22. 22.True or false: clean water is translucent. (a) True (b) False
  23. 23.🧺 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 mirror (d) a sunny open place
  24. 24.🧺 Which of these is not needed for the shadow clock? (a) a straight stick (b) a sunny open place (c) a balloon (d) a clock to check
  25. 25.True or false: your hand is translucent. (a) False (b) True
  26. 26.True or false: clear glass is opaque. (a) True (b) False
  27. 27.🔍 Which is the odd one out? (a) clean water (b) a wooden board (c) air (d) clear glass
  28. 28.⚖️ 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 same stick (c) the same spot (d) shadow length
  29. 29.🧺 Do we need chalk to mark shadows for the shadow clock? (a) needed (b) not needed
  30. 30.⚖️ Fair test — how does the shadow of a stick change through the day? True or false: the same stick is what we measure. (a) False (b) True
  31. 31.⚖️ Fair test — how does the shadow of a stick change through the day? True or false: shadow length is kept the same. (a) False (b) True
  32. 32.🧺 Which of these is needed for the shadow clock? (a) a battery cell (b) a balloon (c) a mirror (d) a sunny open place
  33. 33.True or false: chalk to mark shadows is not needed for the shadow clock. (a) True (b) False
  34. 34.⚖️ 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
  35. 35.🔦 Which of these is translucent? (a) clean water (b) butter paper (c) clear plastic film (d) a wooden board
  36. 36.True or false: yeast is needed for the shadow clock. (a) True (b) False
  37. 37.🧺 Three of these are needed for the shadow clock. Which one is NOT needed? (a) a sunny open place (b) a straight stick (c) chalk to mark shadows (d) yeast
  38. 38.🔦 Which of these is transparent? (a) frosted glass (b) butter paper (c) a steel plate (d) clear glass
  39. 39.🔍 Which is the odd one out? (a) oily paper (b) clear plastic film (c) clean water (d) air
  40. 40.🔦 Is air opaque, translucent or transparent? (a) translucent (b) transparent (c) opaque

Answer key

  1. False
  2. opaque
  3. False
  4. opaque
  5. True
  6. west
  7. we measure it
  8. air
  9. the time of day
  10. False
  11. look straight at the Sun
  12. we keep it the same
  13. False
  14. opaque
  15. the same stick
  16. we change it
  17. clear glass
  18. a steel plate
  19. a battery cell
  20. bigger
  21. telling the time
  22. False
  23. a mirror
  24. a balloon
  25. False
  26. False
  27. a wooden board
  28. shadow length
  29. needed
  30. False
  31. False
  32. a sunny open place
  33. False
  34. False
  35. butter paper
  36. False
  37. yeast
  38. clear glass
  39. oily paper
  40. transparent

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