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Shadow and Sundial Experiment Worksheet

Science experiments lesson 27: Shadows and a sundial · Set 243 · 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.🧺 Do we need a straight stick for the shadow clock? (a) not needed (b) needed
  2. 2.🧺 Three of these are needed for the shadow clock. Which one is NOT needed? (a) a clock to check (b) chalk to mark shadows (c) a sunny open place (d) turmeric powder
  3. 3.⚖️ Fair test — how does the shadow of a stick change through the day? What do we do with “the same spot”? (a) we keep it the same (b) we measure it (c) we change it
  4. 4.🧺 Which of these is not needed for the shadow clock? (a) a mirror (b) a sunny open place (c) a straight stick (d) chalk to mark shadows
  5. 5.🧺 Three of these are needed for the shadow clock. Which one is NOT needed? (a) a sunny open place (b) yeast (c) a clock to check (d) a straight stick
  6. 6.⚖️ 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
  7. 7.True or false: air is transparent. (a) False (b) True
  8. 8.True or false: chalk to mark shadows is not needed for the shadow clock. (a) False (b) True
  9. 9.🌍 Why does the stick’s shadow move during the day? (a) the ground slides (b) the stick walks (c) Earth keeps spinning (d) the stick grows
  10. 10.🧺 Which of these is needed for the shadow clock? (a) a battery cell (b) a sunny open place (c) a magnet (d) yeast
  11. 11.🛟 What should you wear for a long time in the hot sun? (a) a cap or hat (b) a woollen sweater (c) nothing on your head (d) a raincoat
  12. 12.🔦 Is a book opaque, translucent or transparent? (a) opaque (b) translucent (c) transparent
  13. 13.🛟 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
  14. 14.⚖️ 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 same stick
  15. 15.🧺 Which of these is not needed for the shadow clock? (a) chalk to mark shadows (b) yeast (c) a straight stick (d) a clock to check
  16. 16.True or false: a mirror is not needed for the shadow clock. (a) True (b) False
  17. 17.True or false: clear plastic film is transparent. (a) True (b) False
  18. 18.🔦 Which of these is translucent? (a) your hand (b) frosted glass (c) a brick (d) a steel plate
  19. 19.🔍 Which is the odd one out? (a) butter paper (b) clear glass (c) clean water (d) air
  20. 20.True or false: chalk to mark shadows is needed for the shadow clock. (a) False (b) True
  21. 21.🔮 Predict: the Sun is low in the evening sky. The stick’s shadow is ___. (a) short (b) long (c) missing (d) round
  22. 22.🔦 Which of these is translucent? (a) clear plastic film (b) a steel plate (c) tissue paper (d) your hand
  23. 23.⚖️ Fair test — how does the shadow of a stick change through the day? Which of these is kept the same? (a) the stick kept upright (b) shadow length (c) the time of day
  24. 24.🧺 Do we need chalk to mark shadows for the shadow clock? (a) not needed (b) needed
  25. 25.🔍 Which is the odd one out? (a) tissue paper (b) a wooden board (c) a steel plate (d) your hand
  26. 26.🌅 In the morning the Sun is in the east. Which way does a shadow point? (a) west (b) up (c) east (d) north
  27. 27.⚖️ Fair test — how does the shadow of a stick change through the day? Which of these is the one thing we change? (a) shadow length (b) the same spot (c) the same stick (d) the time of day
  28. 28.🔦 Is butter paper opaque, translucent or transparent? (a) translucent (b) transparent (c) opaque
  29. 29.True or false: a magnet is not needed for the shadow clock. (a) True (b) False
  30. 30.🧺 Three of these are needed for the shadow clock. Which one is NOT needed? (a) a clock to check (b) a balloon (c) a sunny open place (d) a straight stick
  31. 31.True or false: tissue paper is translucent. (a) True (b) False
  32. 32.True or false: a clock to check is needed for the shadow clock. (a) True (b) False
  33. 33.🧺 Do we need yeast for the shadow clock? (a) not needed (b) needed
  34. 34.True or false: a battery cell is not needed for the shadow clock. (a) False (b) True
  35. 35.🧺 Do we need a clock to check for the shadow clock? (a) needed (b) not needed
  36. 36.🔦 Which of these is transparent? (a) butter paper (b) a wooden board (c) a book (d) clear glass
  37. 37.🧺 Do we need a sunny open place for the shadow clock? (a) not needed (b) needed
  38. 38.🔦 Is a steel plate opaque, translucent or transparent? (a) transparent (b) opaque (c) translucent
  39. 39.True or false: a wooden board is transparent. (a) False (b) True
  40. 40.🔦 Is a wooden board opaque, translucent or transparent? (a) translucent (b) transparent (c) opaque

Answer key

  1. needed
  2. turmeric powder
  3. we keep it the same
  4. a mirror
  5. yeast
  6. True
  7. True
  8. False
  9. Earth keeps spinning
  10. a sunny open place
  11. a cap or hat
  12. opaque
  13. look straight at the Sun
  14. the same stick
  15. yeast
  16. True
  17. True
  18. frosted glass
  19. butter paper
  20. True
  21. long
  22. tissue paper
  23. the stick kept upright
  24. needed
  25. tissue paper
  26. west
  27. the time of day
  28. translucent
  29. True
  30. a balloon
  31. True
  32. True
  33. not needed
  34. True
  35. needed
  36. clear glass
  37. needed
  38. opaque
  39. False
  40. opaque

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