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Shadow and Sundial Experiment Worksheet

Science experiments lesson 27: Shadows and a sundial · Set 14 · 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.🔮 Predict: you move a torch closer to your hand. The shadow on the wall gets ___. (a) smaller (b) bigger (c) brighter (d) coloured
  2. 2.🌞 When is a stick’s shadow the shortest? (a) late evening (b) at night (c) early morning (d) around noon
  3. 3.🔍 Which is the odd one out? (a) a brick (b) clean water (c) a steel plate (d) your hand
  4. 4.⚖️ Fair test — how does the shadow of a stick change through the day? Which of these is what we measure? (a) the time of day (b) shadow length (c) the stick kept upright (d) the same spot
  5. 5.🧺 Do we need chalk to mark shadows for the shadow clock? (a) needed (b) not needed
  6. 6.True or false: a magnet is needed for the shadow clock. (a) False (b) True
  7. 7.⚖️ 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 stick kept upright (c) the time of day
  8. 8.🧺 Do we need a mirror for the shadow clock? (a) needed (b) not needed
  9. 9.⚖️ Fair test — how does the shadow of a stick change through the day? What do we do with “the stick kept upright”? (a) we measure it (b) we change it (c) we keep it the same
  10. 10.🧺 Which of these is needed for the shadow clock? (a) a straight stick (b) a balloon (c) turmeric powder (d) a magnet
  11. 11.⚖️ 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 same spot
  12. 12.True or false: frosted glass is opaque. (a) True (b) False
  13. 13.🧺 Which of these is not needed for the shadow clock? (a) a clock to check (b) a sunny open place (c) a straight stick (d) yeast
  14. 14.🧺 Three of these are needed for the shadow clock. Which one is NOT needed? (a) a clock to check (b) a straight stick (c) a sunny open place (d) yeast
  15. 15.🔦 Which of these is translucent? (a) a book (b) your hand (c) tissue paper (d) a steel plate
  16. 16.🔦 Which of these is translucent? (a) clear glass (b) clear plastic film (c) frosted glass (d) air
  17. 17.True or false: butter paper is translucent. (a) False (b) True
  18. 18.🧺 Which of these is not needed for the shadow clock? (a) chalk to mark shadows (b) a magnet (c) a clock to check (d) a straight stick
  19. 19.True or false: a mirror is not needed for the shadow clock. (a) False (b) True
  20. 20.True or false: chalk to mark shadows is needed for the shadow clock. (a) True (b) False
  21. 21.🧺 Which of these is not needed for the shadow clock? (a) chalk to mark shadows (b) turmeric powder (c) a straight stick (d) a clock to check
  22. 22.🔍 Which is the odd one out? (a) a wooden board (b) your hand (c) a steel plate (d) butter paper
  23. 23.⚖️ 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
  24. 24.⚖️ 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
  25. 25.🔍 Which is the odd one out? (a) clean water (b) your hand (c) clear glass (d) air
  26. 26.🔍 Which is the odd one out? (a) oily paper (b) clear glass (c) tissue paper (d) butter paper
  27. 27.🧺 Three of these are needed for the shadow clock. Which one is NOT needed? (a) a sunny open place (b) a clock to check (c) a straight stick (d) a balloon
  28. 28.⚖️ 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) shadow length (c) the stick kept upright (d) the same stick
  29. 29.🧺 Which of these is needed for the shadow clock? (a) a balloon (b) chalk to mark shadows (c) a mirror (d) a battery cell
  30. 30.True or false: a book is translucent. (a) False (b) True
  31. 31.🧺 Do we need a magnet for the shadow clock? (a) needed (b) not needed
  32. 32.🔦 Is tissue paper opaque, translucent or transparent? (a) transparent (b) opaque (c) translucent
  33. 33.True or false: air is transparent. (a) True (b) False
  34. 34.True or false: a book is opaque. (a) True (b) False
  35. 35.⚖️ 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 measure it (c) we keep it the same
  36. 36.🕰️ What is a sundial used for? (a) weighing things (b) making rainbows (c) telling the time (d) measuring rain
  37. 37.True or false: frosted glass is translucent. (a) False (b) True
  38. 38.🧺 Three of these are needed for the shadow clock. Which one is NOT needed? (a) a mirror (b) chalk to mark shadows (c) a straight stick (d) a sunny open place
  39. 39.🔮 Predict: the Sun is low in the evening sky. The stick’s shadow is ___. (a) round (b) missing (c) long (d) short
  40. 40.⚖️ 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

Answer key

  1. bigger
  2. around noon
  3. clean water
  4. shadow length
  5. needed
  6. False
  7. the stick kept upright
  8. not needed
  9. we keep it the same
  10. a straight stick
  11. the same spot
  12. False
  13. yeast
  14. yeast
  15. tissue paper
  16. frosted glass
  17. True
  18. a magnet
  19. True
  20. True
  21. turmeric powder
  22. butter paper
  23. True
  24. we change it
  25. your hand
  26. clear glass
  27. a balloon
  28. the time of day
  29. chalk to mark shadows
  30. False
  31. not needed
  32. translucent
  33. True
  34. True
  35. we measure it
  36. telling the time
  37. True
  38. a mirror
  39. long
  40. True

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