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Shadow and Sundial Experiment Worksheet

Science experiments lesson 27: Shadows and a sundial · Set 586 · 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 oily paper opaque, translucent or transparent? (a) opaque (b) transparent (c) translucent
  2. 2.🌍 Why does the stick’s shadow move during the day? (a) the stick walks (b) the ground slides (c) Earth keeps spinning (d) the stick grows
  3. 3.⚖️ Fair test — how does the shadow of a stick change through the day? Which of these is the one thing we change? (a) the time of day (b) the same stick (c) the stick kept upright (d) shadow length
  4. 4.🔍 Which is the odd one out? (a) a book (b) oily paper (c) tissue paper (d) butter paper
  5. 5.⚖️ Fair test — how does the shadow of a stick change through the day? What do we do with “the same stick”? (a) we measure it (b) we keep it the same (c) we change it
  6. 6.🧺 Do we need a straight stick for the shadow clock? (a) needed (b) not needed
  7. 7.True or false: your hand is opaque. (a) False (b) True
  8. 8.True or false: oily paper is translucent. (a) True (b) False
  9. 9.🧺 Do we need a balloon for the shadow clock? (a) needed (b) not needed
  10. 10.⚖️ Fair test — how does the shadow of a stick change through the day? True or false: the same stick is kept the same. (a) False (b) True
  11. 11.🌞 When is a stick’s shadow the shortest? (a) at night (b) late evening (c) around noon (d) early morning
  12. 12.🛟 While watching shadows outdoors, what must you never do? (a) sit in the shade (b) mark with chalk (c) wear a cap (d) look straight at the Sun
  13. 13.True or false: clear plastic film is translucent. (a) True (b) False
  14. 14.🔦 Which of these is opaque? (a) clear glass (b) clear plastic film (c) a book (d) oily paper
  15. 15.True or false: a sunny open place is needed for the shadow clock. (a) False (b) True
  16. 16.🧺 Do we need turmeric powder for the shadow clock? (a) not needed (b) needed
  17. 17.🔍 Which is the odd one out? (a) tissue paper (b) butter paper (c) frosted glass (d) a brick
  18. 18.True or false: a sunny open place is not needed for the shadow clock. (a) False (b) True
  19. 19.🔦 Which of these is translucent? (a) a brick (b) frosted glass (c) a wooden board (d) clean water
  20. 20.⚖️ 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
  21. 21.🧺 Three of these are needed for the shadow clock. Which one is NOT needed? (a) a straight stick (b) chalk to mark shadows (c) turmeric powder (d) a sunny open place
  22. 22.🧺 Do we need yeast for the shadow clock? (a) not needed (b) needed
  23. 23.🔮 Predict: on a fully cloudy day, the sundial ___. (a) does not work well (b) works better (c) shows two times (d) runs faster
  24. 24.🕰️ What is a sundial used for? (a) telling the time (b) measuring rain (c) making rainbows (d) weighing things
  25. 25.🔍 Which is the odd one out? (a) a brick (b) your hand (c) a book (d) tissue paper
  26. 26.🧺 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 balloon (d) a sunny open place
  27. 27.🔮 Predict: the Sun is low in the evening sky. The stick’s shadow is ___. (a) short (b) round (c) missing (d) long
  28. 28.🧺 Do we need a mirror for the shadow clock? (a) needed (b) not needed
  29. 29.🧺 Do we need chalk to mark shadows for the shadow clock? (a) not needed (b) needed
  30. 30.🧺 Three of these are needed for the shadow clock. Which one is NOT needed? (a) a clock to check (b) a sunny open place (c) yeast (d) a straight stick
  31. 31.🔦 Is a wooden board opaque, translucent or transparent? (a) transparent (b) opaque (c) translucent
  32. 32.🔦 Is a steel plate opaque, translucent or transparent? (a) translucent (b) transparent (c) opaque
  33. 33.🔍 Which is the odd one out? (a) a steel plate (b) your hand (c) clean water (d) a book
  34. 34.True or false: yeast is needed for the shadow clock. (a) True (b) False
  35. 35.True or false: a magnet is needed for the shadow clock. (a) True (b) False
  36. 36.True or false: a balloon is not needed for the shadow clock. (a) False (b) True
  37. 37.True or false: a straight stick is needed for the shadow clock. (a) True (b) False
  38. 38.True or false: a mirror is not needed for the shadow clock. (a) False (b) True
  39. 39.🔦 Which of these is opaque? (a) tissue paper (b) butter paper (c) a steel plate (d) clear plastic film
  40. 40.⚖️ Fair test — how does the shadow of a stick change through the day? What do we do with “shadow length”? (a) we keep it the same (b) we change it (c) we measure it

Answer key

  1. translucent
  2. Earth keeps spinning
  3. the time of day
  4. a book
  5. we keep it the same
  6. needed
  7. True
  8. True
  9. not needed
  10. True
  11. around noon
  12. look straight at the Sun
  13. False
  14. a book
  15. True
  16. not needed
  17. a brick
  18. False
  19. frosted glass
  20. we change it
  21. turmeric powder
  22. not needed
  23. does not work well
  24. telling the time
  25. tissue paper
  26. a balloon
  27. long
  28. not needed
  29. needed
  30. yeast
  31. opaque
  32. opaque
  33. clean water
  34. False
  35. False
  36. True
  37. True
  38. True
  39. a steel plate
  40. we measure it

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