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Shadow and Sundial Experiment Worksheet

Science experiments lesson 27: Shadows and a sundial · Set 125 · 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.🔦 Is a book opaque, translucent or transparent? (a) opaque (b) translucent (c) transparent
  2. 2.🔍 Which is the odd one out? (a) oily paper (b) clear plastic film (c) tissue paper (d) frosted glass
  3. 3.🧺 Which of these is not needed for the shadow clock? (a) a sunny open place (b) a straight stick (c) a clock to check (d) turmeric powder
  4. 4.🔍 Which is the odd one out? (a) air (b) butter paper (c) clear glass (d) clear plastic film
  5. 5.True or false: a balloon is needed for the shadow clock. (a) False (b) True
  6. 6.True or false: a mirror is needed for the shadow clock. (a) False (b) True
  7. 7.🛟 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
  8. 8.🔦 Which of these is opaque? (a) clear glass (b) oily paper (c) your hand (d) frosted glass
  9. 9.🧺 Three of these are needed for the shadow clock. Which one is NOT needed? (a) a sunny open place (b) a magnet (c) chalk to mark shadows (d) a clock to check
  10. 10.🌍 Why does the stick’s shadow move during the day? (a) Earth keeps spinning (b) the ground slides (c) the stick grows (d) the stick walks
  11. 11.🔦 Is your hand opaque, translucent or transparent? (a) opaque (b) transparent (c) translucent
  12. 12.🧺 Three of these are needed for the shadow clock. Which one is NOT needed? (a) a sunny open place (b) a clock to check (c) chalk to mark shadows (d) yeast
  13. 13.⚖️ Fair test — how does the shadow of a stick change through the day? Which of these is what we measure? (a) the same spot (b) the stick kept upright (c) shadow length (d) the same stick
  14. 14.⚖️ 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
  15. 15.True or false: a sunny open place is not needed for the shadow clock. (a) False (b) True
  16. 16.🧺 Do we need a battery cell for the shadow clock? (a) needed (b) not needed
  17. 17.🔮 Predict: on a fully cloudy day, the sundial ___. (a) runs faster (b) does not work well (c) works better (d) shows two times
  18. 18.⚖️ 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
  19. 19.🔦 Which of these is transparent? (a) a steel plate (b) a wooden board (c) clear glass (d) a book
  20. 20.🔦 Which of these is translucent? (a) clear glass (b) a steel plate (c) clean water (d) tissue paper
  21. 21.True or false: yeast is needed for the shadow clock. (a) False (b) True
  22. 22.🔦 Is air opaque, translucent or transparent? (a) transparent (b) translucent (c) opaque
  23. 23.⚖️ 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 stick kept upright (c) shadow length
  24. 24.🔦 Is tissue paper opaque, translucent or transparent? (a) transparent (b) translucent (c) opaque
  25. 25.🔦 Which of these is opaque? (a) clear glass (b) oily paper (c) a wooden board (d) frosted glass
  26. 26.True or false: a steel plate is transparent. (a) True (b) False
  27. 27.🛟 What should you wear for a long time in the hot sun? (a) a cap or hat (b) a raincoat (c) a woollen sweater (d) nothing on your head
  28. 28.🧺 Do we need a straight stick for the shadow clock? (a) not needed (b) needed
  29. 29.🧺 Do we need turmeric powder for the shadow clock? (a) needed (b) not needed
  30. 30.⚖️ 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 change it (c) we keep it the same
  31. 31.🔦 Is butter paper opaque, translucent or transparent? (a) translucent (b) opaque (c) transparent
  32. 32.🔦 Is clean water opaque, translucent or transparent? (a) translucent (b) opaque (c) transparent
  33. 33.True or false: butter paper is opaque. (a) False (b) True
  34. 34.True or false: clear plastic film is translucent. (a) True (b) False
  35. 35.True or false: a magnet is not needed for the shadow clock. (a) False (b) True
  36. 36.⚖️ Fair test — how does the shadow of a stick change through the day? True or false: shadow length is kept the same. (a) True (b) False
  37. 37.⚖️ 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
  38. 38.🧺 Which of these is not needed for the shadow clock? (a) a battery cell (b) a straight stick (c) a clock to check (d) chalk to mark shadows
  39. 39.🧺 Do we need a sunny open place for the shadow clock? (a) needed (b) not needed
  40. 40.True or false: clear glass is transparent. (a) True (b) False

Answer key

  1. opaque
  2. clear plastic film
  3. turmeric powder
  4. butter paper
  5. False
  6. False
  7. look straight at the Sun
  8. your hand
  9. a magnet
  10. Earth keeps spinning
  11. opaque
  12. yeast
  13. shadow length
  14. the same stick
  15. False
  16. not needed
  17. does not work well
  18. True
  19. clear glass
  20. tissue paper
  21. False
  22. transparent
  23. the stick kept upright
  24. translucent
  25. a wooden board
  26. False
  27. a cap or hat
  28. needed
  29. not needed
  30. we change it
  31. translucent
  32. transparent
  33. False
  34. False
  35. True
  36. False
  37. False
  38. a battery cell
  39. needed
  40. True

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