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Shadow and Sundial Experiment Worksheet

Science experiments lesson 27: Shadows and a sundial · Set 817 · 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.

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  1. 1.🧺 Three of these are needed for the shadow clock. Which one is NOT needed? (a) a magnet (b) a straight stick (c) a sunny open place (d) a clock to check
  2. 2.🔦 Which of these is transparent? (a) air (b) your hand (c) oily paper (d) a brick
  3. 3.🧺 Which of these is not needed for the shadow clock? (a) a straight stick (b) chalk to mark shadows (c) a sunny open place (d) a mirror
  4. 4.True or false: tissue paper is translucent. (a) True (b) False
  5. 5.⚖️ 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) shadow length (c) the stick kept upright
  6. 6.⚖️ 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 measure it (c) we keep it the same
  7. 7.True or false: turmeric powder is needed for the shadow clock. (a) True (b) False
  8. 8.🔍 Which is the odd one out? (a) oily paper (b) butter paper (c) frosted glass (d) clear glass
  9. 9.🔦 Is a wooden board opaque, translucent or transparent? (a) translucent (b) opaque (c) transparent
  10. 10.🧺 Three of these are needed for the shadow clock. Which one is NOT needed? (a) a sunny open place (b) a straight stick (c) a clock to check (d) a balloon
  11. 11.🧺 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 clock to check
  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.🧺 Do we need turmeric powder for the shadow clock? (a) needed (b) not needed
  14. 14.🔮 Predict: you move a torch closer to your hand. The shadow on the wall gets ___. (a) bigger (b) brighter (c) coloured (d) smaller
  15. 15.🔮 Predict: on a fully cloudy day, the sundial ___. (a) does not work well (b) runs faster (c) works better (d) shows two times
  16. 16.True or false: a straight stick is needed for the shadow clock. (a) False (b) True
  17. 17.🛟 While watching shadows outdoors, what must you never do? (a) sit in the shade (b) wear a cap (c) mark with chalk (d) look straight at the Sun
  18. 18.⚖️ Fair test — how does the shadow of a stick change through the day? True or false: the same stick is what we measure. (a) True (b) False
  19. 19.🧺 Which of these is not needed for the shadow clock? (a) chalk to mark shadows (b) a clock to check (c) a magnet (d) a straight stick
  20. 20.🧺 Which of these is needed for the shadow clock? (a) a magnet (b) a sunny open place (c) a mirror (d) turmeric powder
  21. 21.True or false: a steel plate is opaque. (a) True (b) False
  22. 22.🔦 Is clear plastic film opaque, translucent or transparent? (a) opaque (b) transparent (c) translucent
  23. 23.🧺 Three of these are needed for the shadow clock. Which one is NOT needed? (a) a straight stick (b) yeast (c) a sunny open place (d) a clock to check
  24. 24.🔍 Which is the odd one out? (a) butter paper (b) tissue paper (c) air (d) frosted glass
  25. 25.🔦 Is clear glass opaque, translucent or transparent? (a) transparent (b) opaque (c) translucent
  26. 26.🔦 Which of these is translucent? (a) clean water (b) clear plastic film (c) oily paper (d) a wooden board
  27. 27.🌍 Why does the stick’s shadow move during the day? (a) the stick walks (b) the stick grows (c) Earth keeps spinning (d) the ground slides
  28. 28.🧺 Do we need a clock to check for the shadow clock? (a) not needed (b) needed
  29. 29.🔦 Is a book opaque, translucent or transparent? (a) translucent (b) transparent (c) opaque
  30. 30.🔍 Which is the odd one out? (a) frosted glass (b) a book (c) butter paper (d) oily paper
  31. 31.🔦 Which of these is opaque? (a) oily paper (b) frosted glass (c) air (d) a brick
  32. 32.True or false: a sunny open place is not needed for the shadow clock. (a) True (b) False
  33. 33.⚖️ 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
  34. 34.🔦 Is a steel plate opaque, translucent or transparent? (a) translucent (b) transparent (c) opaque
  35. 35.True or false: a brick is transparent. (a) True (b) False
  36. 36.True or false: oily paper is transparent. (a) True (b) False
  37. 37.⚖️ 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
  38. 38.🧺 Do we need a magnet for the shadow clock? (a) needed (b) not needed
  39. 39.🔦 Which of these is translucent? (a) air (b) clear glass (c) a book (d) tissue paper
  40. 40.🧺 Which of these is not needed for the shadow clock? (a) a straight stick (b) a clock to check (c) turmeric powder (d) chalk to mark shadows

Answer key

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

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