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Shadow and Sundial Experiment Worksheet

Science experiments lesson 27: Shadows and a sundial · Set 250 · 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.🔦 Is frosted glass opaque, translucent or transparent? (a) transparent (b) opaque (c) translucent
  2. 2.🧺 Which of these is not needed for the shadow clock? (a) a clock to check (b) a straight stick (c) a battery cell (d) chalk to mark shadows
  3. 3.🔦 Which of these is transparent? (a) a steel plate (b) your hand (c) tissue paper (d) clean water
  4. 4.🧺 Three of these are needed for the shadow clock. Which one is NOT needed? (a) chalk to mark shadows (b) a clock to check (c) a battery cell (d) a straight stick
  5. 5.True or false: a battery cell is needed for the shadow clock. (a) True (b) False
  6. 6.🧺 Which of these is needed for the shadow clock? (a) a balloon (b) a sunny open place (c) a battery cell (d) a magnet
  7. 7.🔮 Predict: the Sun is low in the evening sky. The stick’s shadow is ___. (a) long (b) round (c) short (d) missing
  8. 8.🧺 Do we need a sunny open place for the shadow clock? (a) needed (b) not needed
  9. 9.🔦 Is your hand opaque, translucent or transparent? (a) opaque (b) translucent (c) transparent
  10. 10.🧺 Do we need a balloon for the shadow clock? (a) not needed (b) needed
  11. 11.🔦 Is a book opaque, translucent or transparent? (a) opaque (b) translucent (c) transparent
  12. 12.True or false: clear plastic film is opaque. (a) True (b) False
  13. 13.🌅 In the morning the Sun is in the east. Which way does a shadow point? (a) up (b) north (c) west (d) east
  14. 14.🔦 Which of these is translucent? (a) frosted glass (b) a wooden board (c) a steel plate (d) your hand
  15. 15.True or false: clean water is translucent. (a) True (b) False
  16. 16.🔮 Predict: you move a torch closer to your hand. The shadow on the wall gets ___. (a) coloured (b) smaller (c) brighter (d) bigger
  17. 17.🧺 Three of these are needed for the shadow clock. Which one is NOT needed? (a) a straight stick (b) chalk to mark shadows (c) a balloon (d) a clock to check
  18. 18.⚖️ 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 same spot (c) the time of day (d) shadow length
  19. 19.🔦 Which of these is translucent? (a) your hand (b) clean water (c) oily paper (d) a wooden board
  20. 20.🧺 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
  21. 21.🛟 While watching shadows outdoors, what must you never do? (a) look straight at the Sun (b) wear a cap (c) mark with chalk (d) sit in the shade
  22. 22.⚖️ 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
  23. 23.True or false: clear plastic film is transparent. (a) False (b) True
  24. 24.🧺 Do we need a clock to check for the shadow clock? (a) needed (b) not needed
  25. 25.🔦 Is oily paper opaque, translucent or transparent? (a) translucent (b) transparent (c) opaque
  26. 26.True or false: a battery cell is not needed for the shadow clock. (a) False (b) True
  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) yeast
  28. 28.🔦 Is a wooden board opaque, translucent or transparent? (a) translucent (b) opaque (c) transparent
  29. 29.🔦 Is air opaque, translucent or transparent? (a) transparent (b) translucent (c) opaque
  30. 30.🔦 Is a steel plate opaque, translucent or transparent? (a) translucent (b) transparent (c) opaque
  31. 31.⚖️ 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
  32. 32.True or false: a mirror 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? Which of these is what we measure? (a) the stick kept upright (b) the same spot (c) shadow length (d) the same stick
  34. 34.True or false: a wooden board is translucent. (a) False (b) True
  35. 35.🔦 Which of these is opaque? (a) clean water (b) butter paper (c) clear glass (d) a book
  36. 36.🕰️ What is a sundial used for? (a) telling the time (b) making rainbows (c) weighing things (d) measuring rain
  37. 37.🔦 Is clear glass opaque, translucent or transparent? (a) translucent (b) opaque (c) transparent
  38. 38.🔍 Which is the odd one out? (a) a steel plate (b) clear plastic film (c) a wooden board (d) your hand
  39. 39.🧺 Which of these is needed for the shadow clock? (a) a magnet (b) yeast (c) a straight stick (d) a battery cell
  40. 40.True or false: a sunny open place is not needed for the shadow clock. (a) False (b) True

Answer key

  1. translucent
  2. a battery cell
  3. clean water
  4. a battery cell
  5. False
  6. a sunny open place
  7. long
  8. needed
  9. opaque
  10. not needed
  11. opaque
  12. False
  13. west
  14. frosted glass
  15. False
  16. bigger
  17. a balloon
  18. the time of day
  19. oily paper
  20. turmeric powder
  21. look straight at the Sun
  22. we change it
  23. True
  24. needed
  25. translucent
  26. True
  27. yeast
  28. opaque
  29. transparent
  30. opaque
  31. we measure it
  32. True
  33. shadow length
  34. False
  35. a book
  36. telling the time
  37. transparent
  38. clear plastic film
  39. a straight stick
  40. False

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