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Shadow and Sundial Experiment Worksheet

Science experiments lesson 27: Shadows and a sundial · Set 510 · 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 balloon is needed for the shadow clock. (a) True (b) False
  2. 2.True or false: tissue paper is transparent. (a) False (b) True
  3. 3.🔦 Which of these is transparent? (a) clean water (b) butter paper (c) your hand (d) a brick
  4. 4.⚖️ Fair test — how does the shadow of a stick change through the day? True or false: the time of day is what we measure. (a) True (b) False
  5. 5.True or false: frosted glass is opaque. (a) False (b) True
  6. 6.⚖️ Fair test — how does the shadow of a stick change through the day? True or false: the same spot is the one thing we change. (a) False (b) True
  7. 7.🔍 Which is the odd one out? (a) your hand (b) a steel plate (c) clear plastic film (d) a wooden board
  8. 8.⚖️ Fair test — how does the shadow of a stick change through the day? What do we do with “the same stick”? (a) we change it (b) we measure it (c) we keep it the same
  9. 9.True or false: a steel plate is translucent. (a) True (b) False
  10. 10.🧺 Which of these is needed for the shadow clock? (a) a balloon (b) a magnet (c) yeast (d) a sunny open place
  11. 11.🧺 Do we need chalk to mark shadows for the shadow clock? (a) needed (b) not needed
  12. 12.🔍 Which is the odd one out? (a) frosted glass (b) butter paper (c) air (d) oily paper
  13. 13.⚖️ Fair test — how does the shadow of a stick change through the day? What do we do with “the same spot”? (a) we change it (b) we measure it (c) we keep it the same
  14. 14.⚖️ Fair test — how does the shadow of a stick change through the day? True or false: shadow length is what we measure. (a) True (b) False
  15. 15.📘 Why does a shadow form? (a) the object is cold (b) an object blocks light (c) the ground is dark (d) light bends round it
  16. 16.🧺 Which of these is not needed for the shadow clock? (a) a mirror (b) a clock to check (c) chalk to mark shadows (d) a straight stick
  17. 17.🔦 Is your hand opaque, translucent or transparent? (a) opaque (b) translucent (c) transparent
  18. 18.⚖️ Fair test — how does the shadow of a stick change through the day? True or false: shadow length is kept the same. (a) False (b) True
  19. 19.⚖️ 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) False (b) True
  20. 20.True or false: a clock to check is needed for the shadow clock. (a) False (b) True
  21. 21.🧺 Which of these is needed for the shadow clock? (a) chalk to mark shadows (b) turmeric powder (c) a balloon (d) a magnet
  22. 22.True or false: a straight stick is not needed for the shadow clock. (a) True (b) False
  23. 23.⚖️ 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
  24. 24.🧺 Which of these is needed for the shadow clock? (a) yeast (b) a magnet (c) a straight stick (d) a balloon
  25. 25.🔍 Which is the odd one out? (a) air (b) clean water (c) butter paper (d) clear glass
  26. 26.🛟 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
  27. 27.True or false: a straight stick is needed for the shadow clock. (a) False (b) True
  28. 28.🧺 Three of these are needed for the shadow clock. Which one is NOT needed? (a) chalk to mark shadows (b) a magnet (c) a sunny open place (d) a straight stick
  29. 29.🌍 Why does the stick’s shadow move during the day? (a) the stick grows (b) Earth keeps spinning (c) the ground slides (d) the stick walks
  30. 30.🔍 Which is the odd one out? (a) frosted glass (b) oily paper (c) your hand (d) tissue paper
  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 stick kept upright (b) the time of day (c) the same stick (d) the same spot
  32. 32.True or false: clear glass is transparent. (a) False (b) True
  33. 33.True or false: a wooden board is translucent. (a) False (b) True
  34. 34.🔮 Predict: the Sun is low in the evening sky. The stick’s shadow is ___. (a) long (b) missing (c) short (d) round
  35. 35.🧺 Which of these is not needed for the shadow clock? (a) chalk to mark shadows (b) turmeric powder (c) a clock to check (d) a straight stick
  36. 36.🔦 Which of these is transparent? (a) frosted glass (b) a brick (c) a book (d) air
  37. 37.🧺 Do we need a sunny open place for the shadow clock? (a) not needed (b) needed
  38. 38.🔮 Predict: you move a torch closer to your hand. The shadow on the wall gets ___. (a) bigger (b) coloured (c) smaller (d) brighter
  39. 39.🧺 Do we need yeast for the shadow clock? (a) needed (b) not needed
  40. 40.True or false: oily paper is translucent. (a) True (b) False

Answer key

  1. False
  2. False
  3. clean water
  4. False
  5. False
  6. False
  7. clear plastic film
  8. we keep it the same
  9. False
  10. a sunny open place
  11. needed
  12. air
  13. we keep it the same
  14. True
  15. an object blocks light
  16. a mirror
  17. opaque
  18. False
  19. True
  20. True
  21. chalk to mark shadows
  22. False
  23. we change it
  24. a straight stick
  25. butter paper
  26. look straight at the Sun
  27. True
  28. a magnet
  29. Earth keeps spinning
  30. your hand
  31. the time of day
  32. True
  33. False
  34. long
  35. turmeric powder
  36. air
  37. needed
  38. bigger
  39. not needed
  40. True

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