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Shadow and Sundial Experiment Worksheet

Science experiments lesson 27: Shadows and a sundial · Set 508 · 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.⚖️ Fair test — how does the shadow of a stick change through the day? What do we do with “the same spot”? (a) we measure it (b) we keep it the same (c) we change it
  2. 2.🧺 Do we need turmeric powder for the shadow clock? (a) not needed (b) needed
  3. 3.🔦 Which of these is translucent? (a) air (b) frosted glass (c) your hand (d) a steel plate
  4. 4.⚖️ 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 change it (c) we measure it
  5. 5.🔦 Which of these is opaque? (a) clear glass (b) clear plastic film (c) a brick (d) frosted glass
  6. 6.🔦 Which of these is opaque? (a) clean water (b) clear glass (c) oily paper (d) a steel plate
  7. 7.True or false: your hand is translucent. (a) False (b) True
  8. 8.🔮 Predict: the Sun is low in the evening sky. The stick’s shadow is ___. (a) missing (b) short (c) long (d) round
  9. 9.True or false: a wooden board is transparent. (a) False (b) True
  10. 10.🧺 Do we need chalk to mark shadows for the shadow clock? (a) not needed (b) needed
  11. 11.🔦 Is butter paper opaque, translucent or transparent? (a) transparent (b) translucent (c) opaque
  12. 12.🔍 Which is the odd one out? (a) tissue paper (b) a book (c) oily paper (d) butter paper
  13. 13.⚖️ Fair test — how does the shadow of a stick change through the day? True or false: shadow length is what we measure. (a) False (b) True
  14. 14.🔮 Predict: on a fully cloudy day, the sundial ___. (a) runs faster (b) works better (c) shows two times (d) does not work well
  15. 15.🧺 Do we need a straight stick for the shadow clock? (a) needed (b) not needed
  16. 16.⚖️ Fair test — how does the shadow of a stick change through the day? True or false: the stick kept upright is the one thing we change. (a) True (b) False
  17. 17.🌍 Why does the stick’s shadow move during the day? (a) the stick grows (b) the stick walks (c) Earth keeps spinning (d) the ground slides
  18. 18.🔦 Is oily paper opaque, translucent or transparent? (a) transparent (b) translucent (c) opaque
  19. 19.True or false: butter paper is translucent. (a) True (b) False
  20. 20.🧺 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
  21. 21.🔦 Which of these is opaque? (a) a book (b) butter paper (c) air (d) oily paper
  22. 22.⚖️ Fair test — how does the shadow of a stick change through the day? True or false: the same spot is what we measure. (a) True (b) False
  23. 23.🧺 Which of these is needed for the shadow clock? (a) a mirror (b) turmeric powder (c) a straight stick (d) a magnet
  24. 24.🧺 Which of these is not needed for the shadow clock? (a) a clock to check (b) a straight stick (c) a mirror (d) chalk to mark shadows
  25. 25.🧺 Three of these are needed for the shadow clock. Which one is NOT needed? (a) a clock to check (b) a sunny open place (c) chalk to mark shadows (d) a battery cell
  26. 26.True or false: a clock to check is needed for the shadow clock. (a) True (b) False
  27. 27.🔦 Which of these is translucent? (a) a book (b) your hand (c) tissue paper (d) air
  28. 28.🔦 Is a steel plate opaque, translucent or transparent? (a) opaque (b) translucent (c) transparent
  29. 29.🧺 Three of these are needed for the shadow clock. Which one is NOT needed? (a) yeast (b) a sunny open place (c) a straight stick (d) a clock to check
  30. 30.True or false: butter paper is transparent. (a) False (b) True
  31. 31.🧺 Do we need yeast for the shadow clock? (a) needed (b) not needed
  32. 32.⚖️ Fair test — how does the shadow of a stick change through the day? What do we do with “the same stick”? (a) we measure it (b) we keep it the same (c) we change it
  33. 33.🧺 Which of these is needed for the shadow clock? (a) a battery cell (b) a magnet (c) turmeric powder (d) a sunny open place
  34. 34.🧺 Three of these are needed for the shadow clock. Which one is NOT needed? (a) turmeric powder (b) a straight stick (c) chalk to mark shadows (d) a sunny open place
  35. 35.🔍 Which is the odd one out? (a) a steel plate (b) a wooden board (c) a book (d) clear plastic film
  36. 36.🛟 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
  37. 37.True or false: a balloon is needed for the shadow clock. (a) True (b) False
  38. 38.🔦 Is air opaque, translucent or transparent? (a) translucent (b) transparent (c) opaque
  39. 39.True or false: clean water is transparent. (a) False (b) True
  40. 40.True or false: a magnet is needed for the shadow clock. (a) False (b) True

Answer key

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

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