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Shadow and Sundial Experiment Worksheet

Science experiments lesson 27: Shadows and a sundial · Set 869 · 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 spot”? (a) we change it (b) we keep it the same (c) we measure it
  2. 2.🔮 Predict: you move a torch closer to your hand. The shadow on the wall gets ___. (a) brighter (b) smaller (c) coloured (d) bigger
  3. 3.True or false: a book is transparent. (a) False (b) True
  4. 4.True or false: oily paper is transparent. (a) True (b) False
  5. 5.True or false: clear glass is translucent. (a) False (b) True
  6. 6.🔍 Which is the odd one out? (a) clear plastic film (b) frosted glass (c) clear glass (d) clean water
  7. 7.🧺 Three of these are needed for the shadow clock. Which one is NOT needed? (a) yeast (b) a straight stick (c) a clock to check (d) chalk to mark shadows
  8. 8.🧺 Do we need a magnet for the shadow clock? (a) not needed (b) needed
  9. 9.🔍 Which is the odd one out? (a) air (b) butter paper (c) clear plastic film (d) clear glass
  10. 10.🧺 Which of these is not needed for the shadow clock? (a) a straight stick (b) a sunny open place (c) turmeric powder (d) chalk to mark shadows
  11. 11.🔍 Which is the odd one out? (a) frosted glass (b) butter paper (c) oily paper (d) clear glass
  12. 12.⚖️ 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) True (b) False
  13. 13.🧺 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) a balloon
  14. 14.🔍 Which is the odd one out? (a) clear glass (b) air (c) clean water (d) oily paper
  15. 15.True or false: a clock to check is not needed for the shadow clock. (a) False (b) True
  16. 16.🔦 Is your hand opaque, translucent or transparent? (a) opaque (b) translucent (c) transparent
  17. 17.🧺 Three of these are needed for the shadow clock. Which one is NOT needed? (a) chalk to mark shadows (b) a magnet (c) a sunny open place (d) a clock to check
  18. 18.⚖️ Fair test — how does the shadow of a stick change through the day? What do we do with “the stick kept upright”? (a) we keep it the same (b) we change it (c) we measure it
  19. 19.🌍 Why does the stick’s shadow move during the day? (a) the stick grows (b) the ground slides (c) Earth keeps spinning (d) the stick walks
  20. 20.True or false: clean water is translucent. (a) False (b) True
  21. 21.⚖️ 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) False (b) True
  22. 22.🧺 Do we need turmeric powder for the shadow clock? (a) needed (b) not needed
  23. 23.🔍 Which is the odd one out? (a) clear glass (b) tissue paper (c) clean water (d) air
  24. 24.🔦 Which of these is opaque? (a) air (b) tissue paper (c) clear glass (d) a book
  25. 25.⚖️ 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) True (b) False
  26. 26.⚖️ Fair test — how does the shadow of a stick change through the day? True or false: the same stick is kept the same. (a) True (b) False
  27. 27.🧺 Three of these are needed for the shadow clock. Which one is NOT needed? (a) a clock to check (b) a battery cell (c) a straight stick (d) chalk to mark shadows
  28. 28.🧺 Which of these is needed for the shadow clock? (a) a straight stick (b) yeast (c) turmeric powder (d) a balloon
  29. 29.🔦 Which of these is transparent? (a) a steel plate (b) a book (c) air (d) frosted glass
  30. 30.🔦 Which of these is opaque? (a) clear plastic film (b) butter paper (c) clear glass (d) a steel plate
  31. 31.True or false: chalk to mark shadows is not needed for the shadow clock. (a) False (b) True
  32. 32.🔦 Which of these is opaque? (a) a brick (b) oily paper (c) frosted glass (d) tissue paper
  33. 33.🔦 Is a brick opaque, translucent or transparent? (a) transparent (b) opaque (c) translucent
  34. 34.True or false: a magnet is not needed for the shadow clock. (a) True (b) False
  35. 35.True or false: your hand is translucent. (a) True (b) False
  36. 36.⚖️ 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 keep it the same (c) we measure it
  37. 37.True or false: a magnet is needed for the shadow clock. (a) False (b) True
  38. 38.🔮 Predict: on a fully cloudy day, the sundial ___. (a) runs faster (b) does not work well (c) works better (d) shows two times
  39. 39.🔍 Which is the odd one out? (a) a book (b) frosted glass (c) butter paper (d) tissue paper
  40. 40.True or false: a wooden board is transparent. (a) False (b) True

Answer key

  1. we keep it the same
  2. bigger
  3. False
  4. False
  5. False
  6. frosted glass
  7. yeast
  8. not needed
  9. butter paper
  10. turmeric powder
  11. clear glass
  12. False
  13. a balloon
  14. oily paper
  15. False
  16. opaque
  17. a magnet
  18. we keep it the same
  19. Earth keeps spinning
  20. False
  21. False
  22. not needed
  23. tissue paper
  24. a book
  25. False
  26. True
  27. a battery cell
  28. a straight stick
  29. air
  30. a steel plate
  31. False
  32. a brick
  33. opaque
  34. True
  35. False
  36. we change it
  37. False
  38. does not work well
  39. a book
  40. False

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