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Shadow and Sundial Experiment Worksheet

Science experiments lesson 27: Shadows and a sundial · Set 240 · 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 “shadow length”? (a) we measure it (b) we change it (c) we keep it the same
  2. 2.⚖️ Fair test — how does the shadow of a stick change through the day? True or false: shadow length is what we measure. (a) False (b) True
  3. 3.🔦 Is a steel plate opaque, translucent or transparent? (a) transparent (b) opaque (c) translucent
  4. 4.🌅 In the morning the Sun is in the east. Which way does a shadow point? (a) west (b) up (c) east (d) north
  5. 5.🛟 While watching shadows outdoors, what must you never do? (a) mark with chalk (b) wear a cap (c) sit in the shade (d) look straight at the Sun
  6. 6.⚖️ 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 time of day (c) the same stick (d) shadow length
  7. 7.🔮 Predict: on a fully cloudy day, the sundial ___. (a) does not work well (b) works better (c) shows two times (d) runs faster
  8. 8.🔦 Which of these is opaque? (a) frosted glass (b) tissue paper (c) a wooden board (d) air
  9. 9.🔦 Which of these is opaque? (a) clear glass (b) butter paper (c) clean water (d) your hand
  10. 10.⚖️ 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 keep it the same (c) we change it
  11. 11.🔦 Is butter paper opaque, translucent or transparent? (a) opaque (b) translucent (c) transparent
  12. 12.True or false: clean water is opaque. (a) True (b) False
  13. 13.True or false: chalk to mark shadows is not needed for the shadow clock. (a) False (b) True
  14. 14.True or false: a straight stick is not needed for the shadow clock. (a) False (b) True
  15. 15.🔦 Which of these is transparent? (a) air (b) a brick (c) a steel plate (d) a wooden board
  16. 16.🔦 Which of these is translucent? (a) clear glass (b) clear plastic film (c) a brick (d) oily paper
  17. 17.🔍 Which is the odd one out? (a) oily paper (b) a wooden board (c) frosted glass (d) butter paper
  18. 18.⚖️ Fair test — how does the shadow of a stick change through the day? True or false: the same spot is kept the same. (a) True (b) False
  19. 19.🔦 Is clear plastic film opaque, translucent or transparent? (a) translucent (b) transparent (c) opaque
  20. 20.🧺 Do we need a mirror for the shadow clock? (a) needed (b) not needed
  21. 21.🧺 Do we need turmeric powder for the shadow clock? (a) needed (b) not needed
  22. 22.🔦 Is air opaque, translucent or transparent? (a) opaque (b) translucent (c) transparent
  23. 23.🧺 Three of these are needed for the shadow clock. Which one is NOT needed? (a) a clock to check (b) a balloon (c) a straight stick (d) chalk to mark shadows
  24. 24.🧺 Three of these are needed for the shadow clock. Which one is NOT needed? (a) turmeric powder (b) a sunny open place (c) a clock to check (d) a straight stick
  25. 25.🔮 Predict: the Sun is low in the evening sky. The stick’s shadow is ___. (a) short (b) missing (c) round (d) long
  26. 26.⚖️ Fair test — how does the shadow of a stick change through the day? True or false: the same stick is the one thing we change. (a) False (b) True
  27. 27.🧺 Do we need a balloon for the shadow clock? (a) needed (b) not needed
  28. 28.🧺 Do we need chalk to mark shadows for the shadow clock? (a) not needed (b) needed
  29. 29.True or false: clear glass is transparent. (a) False (b) True
  30. 30.🔦 Which of these is transparent? (a) frosted glass (b) a book (c) clear glass (d) a steel plate
  31. 31.⚖️ 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 same spot (d) shadow length
  32. 32.🔍 Which is the odd one out? (a) a wooden board (b) a brick (c) your hand (d) frosted glass
  33. 33.🧺 Three of these are needed for the shadow clock. Which one is NOT needed? (a) yeast (b) a sunny open place (c) a clock to check (d) chalk to mark shadows
  34. 34.🌞 When is a stick’s shadow the shortest? (a) at night (b) late evening (c) around noon (d) early morning
  35. 35.🔮 Predict: you move a torch closer to your hand. The shadow on the wall gets ___. (a) brighter (b) coloured (c) smaller (d) bigger
  36. 36.⚖️ 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) False (b) True
  37. 37.True or false: frosted glass is translucent. (a) False (b) True
  38. 38.🧺 Which of these is needed for the shadow clock? (a) a balloon (b) chalk to mark shadows (c) yeast (d) turmeric powder
  39. 39.🔦 Is a book opaque, translucent or transparent? (a) transparent (b) translucent (c) opaque
  40. 40.🔍 Which is the odd one out? (a) tissue paper (b) clean water (c) air (d) clear plastic film

Answer key

  1. we measure it
  2. True
  3. opaque
  4. west
  5. look straight at the Sun
  6. shadow length
  7. does not work well
  8. a wooden board
  9. your hand
  10. we change it
  11. translucent
  12. False
  13. False
  14. False
  15. air
  16. oily paper
  17. a wooden board
  18. True
  19. transparent
  20. not needed
  21. not needed
  22. transparent
  23. a balloon
  24. turmeric powder
  25. long
  26. False
  27. not needed
  28. needed
  29. True
  30. clear glass
  31. the time of day
  32. frosted glass
  33. yeast
  34. around noon
  35. bigger
  36. True
  37. True
  38. chalk to mark shadows
  39. opaque
  40. tissue paper

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