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Shadow and Sundial Experiment Worksheet

Science experiments lesson 27: Shadows and a sundial · Set 801 · 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 straight stick is needed for the shadow clock. (a) True (b) False
  2. 2.True or false: chalk to mark shadows is not needed for the shadow clock. (a) True (b) False
  3. 3.🔦 Is a steel plate opaque, translucent or transparent? (a) translucent (b) transparent (c) opaque
  4. 4.🔦 Is butter paper opaque, translucent or transparent? (a) transparent (b) opaque (c) translucent
  5. 5.🧺 Do we need a mirror for the shadow clock? (a) not needed (b) needed
  6. 6.🌞 When is a stick’s shadow the shortest? (a) at night (b) early morning (c) late evening (d) around noon
  7. 7.🔦 Is your hand opaque, translucent or transparent? (a) transparent (b) opaque (c) translucent
  8. 8.🔍 Which is the odd one out? (a) frosted glass (b) clear glass (c) tissue paper (d) butter paper
  9. 9.🛟 What should you wear for a long time in the hot sun? (a) a cap or hat (b) nothing on your head (c) a woollen sweater (d) a raincoat
  10. 10.⚖️ 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 stick kept upright
  11. 11.True or false: chalk to mark shadows is needed for the shadow clock. (a) False (b) True
  12. 12.True or false: a straight stick is not needed for the shadow clock. (a) True (b) False
  13. 13.🧺 Do we need a balloon for the shadow clock? (a) not needed (b) needed
  14. 14.⚖️ 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
  15. 15.🧺 Do we need a clock to check for the shadow clock? (a) needed (b) not needed
  16. 16.🔍 Which is the odd one out? (a) a brick (b) clear plastic film (c) a steel plate (d) your hand
  17. 17.🔮 Predict: the Sun is low in the evening sky. The stick’s shadow is ___. (a) missing (b) long (c) round (d) short
  18. 18.⚖️ 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 spot (c) shadow length (d) the same stick
  19. 19.⚖️ 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
  20. 20.🕰️ What is a sundial used for? (a) telling the time (b) making rainbows (c) weighing things (d) measuring rain
  21. 21.🔮 Predict: on a fully cloudy day, the sundial ___. (a) shows two times (b) runs faster (c) does not work well (d) works better
  22. 22.🔦 Is a brick opaque, translucent or transparent? (a) translucent (b) transparent (c) opaque
  23. 23.🌍 Why does the stick’s shadow move during the day? (a) the ground slides (b) the stick walks (c) the stick grows (d) Earth keeps spinning
  24. 24.🧺 Three of these are needed for the shadow clock. Which one is NOT needed? (a) a straight stick (b) a sunny open place (c) chalk to mark shadows (d) turmeric powder
  25. 25.🧺 Which of these is not needed for the shadow clock? (a) a clock to check (b) yeast (c) chalk to mark shadows (d) a straight stick
  26. 26.True or false: a clock to check is not needed for the shadow clock. (a) False (b) True
  27. 27.🛟 While watching shadows outdoors, what must you never do? (a) look straight at the Sun (b) mark with chalk (c) sit in the shade (d) wear a cap
  28. 28.⚖️ 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 measure it (c) we change it
  29. 29.⚖️ Fair test — how does the shadow of a stick change through the day? True or false: the time of day is the one thing we change. (a) True (b) False
  30. 30.True or false: turmeric powder is not needed for the shadow clock. (a) False (b) True
  31. 31.True or false: a magnet is needed for the shadow clock. (a) False (b) True
  32. 32.🔦 Is clear plastic film opaque, translucent or transparent? (a) translucent (b) opaque (c) transparent
  33. 33.🔦 Is a wooden board opaque, translucent or transparent? (a) transparent (b) opaque (c) translucent
  34. 34.🔍 Which is the odd one out? (a) a book (b) a wooden board (c) your hand (d) tissue paper
  35. 35.🧺 Do we need a sunny open place for the shadow clock? (a) not needed (b) needed
  36. 36.True or false: a brick is opaque. (a) False (b) True
  37. 37.True or false: clear plastic film is opaque. (a) True (b) False
  38. 38.🔦 Which of these is transparent? (a) a steel plate (b) air (c) a brick (d) butter paper
  39. 39.🔦 Which of these is translucent? (a) clear glass (b) clear plastic film (c) a wooden board (d) oily paper
  40. 40.🧺 Which of these is not needed for the shadow clock? (a) a clock to check (b) a straight stick (c) a sunny open place (d) a balloon

Answer key

  1. True
  2. False
  3. opaque
  4. translucent
  5. not needed
  6. around noon
  7. opaque
  8. clear glass
  9. a cap or hat
  10. the stick kept upright
  11. True
  12. False
  13. not needed
  14. True
  15. needed
  16. clear plastic film
  17. long
  18. the time of day
  19. we measure it
  20. telling the time
  21. does not work well
  22. opaque
  23. Earth keeps spinning
  24. turmeric powder
  25. yeast
  26. False
  27. look straight at the Sun
  28. we change it
  29. True
  30. True
  31. False
  32. transparent
  33. opaque
  34. tissue paper
  35. needed
  36. True
  37. False
  38. air
  39. oily paper
  40. a balloon

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