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Shadow and Sundial Experiment Worksheet

Science experiments lesson 27: Shadows and a sundial · Set 158 · 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: clear glass is translucent. (a) False (b) True
  2. 2.🔮 Predict: on a fully cloudy day, the sundial ___. (a) runs faster (b) does not work well (c) shows two times (d) works better
  3. 3.🔍 Which is the odd one out? (a) clear glass (b) tissue paper (c) clear plastic film (d) air
  4. 4.🧺 Which of these is needed for the shadow clock? (a) a mirror (b) a straight stick (c) turmeric powder (d) a battery cell
  5. 5.🔦 Which of these is transparent? (a) air (b) a book (c) your hand (d) frosted glass
  6. 6.🌍 Why does the stick’s shadow move during the day? (a) Earth keeps spinning (b) the ground slides (c) the stick grows (d) the stick walks
  7. 7.🔦 Which of these is opaque? (a) butter paper (b) a book (c) air (d) clear glass
  8. 8.True or false: a sunny open place is not needed for the shadow clock. (a) False (b) True
  9. 9.⚖️ 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) the same stick (c) shadow length (d) the stick kept upright
  10. 10.🧺 Three of these are needed for the shadow clock. Which one is NOT needed? (a) a battery cell (b) a straight stick (c) chalk to mark shadows (d) a sunny open place
  11. 11.⚖️ Fair test — how does the shadow of a stick change through the day? True or false: the time of day is kept the same. (a) False (b) True
  12. 12.🧺 Three of these are needed for the shadow clock. Which one is NOT needed? (a) a sunny open place (b) a straight stick (c) a clock to check (d) a magnet
  13. 13.⚖️ Fair test — how does the shadow of a stick change through the day? True or false: shadow length is the one thing we change. (a) False (b) True
  14. 14.🔦 Is clean water opaque, translucent or transparent? (a) opaque (b) translucent (c) transparent
  15. 15.⚖️ 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
  16. 16.🧺 Which of these is needed for the shadow clock? (a) a sunny open place (b) a battery cell (c) a magnet (d) a balloon
  17. 17.🛟 While watching shadows outdoors, what must you never do? (a) wear a cap (b) sit in the shade (c) mark with chalk (d) look straight at the Sun
  18. 18.🔦 Which of these is transparent? (a) a book (b) clean water (c) oily paper (d) your hand
  19. 19.🔦 Which of these is opaque? (a) tissue paper (b) clean water (c) oily paper (d) your hand
  20. 20.🧺 Which of these is not needed for the shadow clock? (a) chalk to mark shadows (b) a sunny open place (c) a clock to check (d) a balloon
  21. 21.True or false: a magnet is not needed for the shadow clock. (a) False (b) True
  22. 22.🧺 Do we need chalk to mark shadows for the shadow clock? (a) not needed (b) needed
  23. 23.🧺 Which of these is not needed for the shadow clock? (a) a sunny open place (b) a straight stick (c) turmeric powder (d) a clock to check
  24. 24.🧺 Do we need yeast for the shadow clock? (a) not needed (b) needed
  25. 25.🧺 Which of these is not needed for the shadow clock? (a) yeast (b) a clock to check (c) a straight stick (d) chalk to mark shadows
  26. 26.🔦 Is oily paper opaque, translucent or transparent? (a) transparent (b) translucent (c) opaque
  27. 27.🕰️ What is a sundial used for? (a) telling the time (b) making rainbows (c) weighing things (d) measuring rain
  28. 28.🔮 Predict: the Sun is low in the evening sky. The stick’s shadow is ___. (a) missing (b) round (c) short (d) long
  29. 29.🔍 Which is the odd one out? (a) your hand (b) clear plastic film (c) clean water (d) clear glass
  30. 30.⚖️ Fair test — how does the shadow of a stick change through the day? True or false: the time of day is the one thing we change. (a) False (b) True
  31. 31.🔮 Predict: you move a torch closer to your hand. The shadow on the wall gets ___. (a) bigger (b) smaller (c) brighter (d) coloured
  32. 32.🧺 Do we need a balloon for the shadow clock? (a) needed (b) not needed
  33. 33.True or false: a mirror is not needed for the shadow clock. (a) True (b) False
  34. 34.🔍 Which is the odd one out? (a) a brick (b) a book (c) a wooden board (d) oily paper
  35. 35.🔦 Is clear glass opaque, translucent or transparent? (a) translucent (b) transparent (c) opaque
  36. 36.🧺 Do we need a sunny open place for the shadow clock? (a) not needed (b) needed
  37. 37.True or false: a magnet is needed for the shadow clock. (a) True (b) False
  38. 38.True or false: yeast is needed for the shadow clock. (a) True (b) False
  39. 39.🧺 Which of these is not needed for the shadow clock? (a) chalk to mark shadows (b) a straight stick (c) a battery cell (d) a clock to check
  40. 40.🔍 Which is the odd one out? (a) air (b) clear glass (c) clean water (d) a brick

Answer key

  1. False
  2. does not work well
  3. tissue paper
  4. a straight stick
  5. air
  6. Earth keeps spinning
  7. a book
  8. False
  9. shadow length
  10. a battery cell
  11. False
  12. a magnet
  13. False
  14. transparent
  15. we keep it the same
  16. a sunny open place
  17. look straight at the Sun
  18. clean water
  19. your hand
  20. a balloon
  21. True
  22. needed
  23. turmeric powder
  24. not needed
  25. yeast
  26. translucent
  27. telling the time
  28. long
  29. your hand
  30. True
  31. bigger
  32. not needed
  33. True
  34. oily paper
  35. transparent
  36. needed
  37. False
  38. False
  39. a battery cell
  40. a brick

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