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Shadow and Sundial Experiment Worksheet

Science experiments lesson 27: Shadows and a sundial · Set 377 · 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.📘 Why does a shadow form? (a) the ground is dark (b) the object is cold (c) light bends round it (d) an object blocks light
  2. 2.🧺 Do we need a straight stick for the shadow clock? (a) not needed (b) needed
  3. 3.🔍 Which is the odd one out? (a) a wooden board (b) a steel plate (c) a book (d) tissue paper
  4. 4.⚖️ Fair test — how does the shadow of a stick change through the day? Which of these is what we measure? (a) the same stick (b) shadow length (c) the same spot (d) the time of day
  5. 5.🧺 Three of these are needed for the shadow clock. Which one is NOT needed? (a) chalk to mark shadows (b) a magnet (c) a straight stick (d) a sunny open place
  6. 6.⚖️ 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
  7. 7.True or false: chalk to mark shadows is needed for the shadow clock. (a) False (b) True
  8. 8.🧺 Do we need a clock to check for the shadow clock? (a) not needed (b) needed
  9. 9.🧺 Do we need a balloon for the shadow clock? (a) needed (b) not needed
  10. 10.🛟 What should you wear for a long time in the hot sun? (a) a raincoat (b) a woollen sweater (c) a cap or hat (d) nothing on your head
  11. 11.True or false: a brick is translucent. (a) True (b) False
  12. 12.🧺 Three of these are needed for the shadow clock. Which one is NOT needed? (a) a sunny open place (b) turmeric powder (c) a straight stick (d) chalk to mark shadows
  13. 13.🧺 Which of these is needed for the shadow clock? (a) chalk to mark shadows (b) turmeric powder (c) yeast (d) a balloon
  14. 14.🧺 Which of these is not needed for the shadow clock? (a) a sunny open place (b) a clock to check (c) a battery cell (d) a straight stick
  15. 15.🔍 Which is the odd one out? (a) clear glass (b) butter paper (c) air (d) clean water
  16. 16.True or false: a balloon is not needed for the shadow clock. (a) False (b) True
  17. 17.🧺 Do we need turmeric powder for the shadow clock? (a) needed (b) not needed
  18. 18.🔦 Which of these is opaque? (a) air (b) clear glass (c) a book (d) oily paper
  19. 19.🌍 Why does the stick’s shadow move during the day? (a) the stick grows (b) the ground slides (c) Earth keeps spinning (d) the stick walks
  20. 20.🧺 Which of these is not needed for the shadow clock? (a) a straight stick (b) a clock to check (c) a sunny open place (d) yeast
  21. 21.True or false: a brick is transparent. (a) True (b) False
  22. 22.🛟 While watching shadows outdoors, what must you never do? (a) wear a cap (b) mark with chalk (c) look straight at the Sun (d) sit in the shade
  23. 23.True or false: yeast is needed for the shadow clock. (a) True (b) False
  24. 24.True or false: a sunny open place is not needed for the shadow clock. (a) False (b) True
  25. 25.⚖️ Fair test — how does the shadow of a stick change through the day? True or false: the same spot is kept the same. (a) False (b) True
  26. 26.🧺 Which of these is not needed for the shadow clock? (a) a straight stick (b) chalk to mark shadows (c) a clock to check (d) a balloon
  27. 27.⚖️ Fair test — how does the shadow of a stick change through the day? True or false: the same stick is the one thing we change. (a) False (b) True
  28. 28.⚖️ 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) True (b) False
  29. 29.🌞 When is a stick’s shadow the shortest? (a) around noon (b) early morning (c) late evening (d) at night
  30. 30.⚖️ Fair test — how does the shadow of a stick change through the day? What do we do with “the same stick”? (a) we change it (b) we measure it (c) we keep it the same
  31. 31.🧺 Which of these is needed for the shadow clock? (a) a straight stick (b) a balloon (c) turmeric powder (d) yeast
  32. 32.🧺 Three of these are needed for the shadow clock. Which one is NOT needed? (a) a straight stick (b) a sunny open place (c) a mirror (d) chalk to mark shadows
  33. 33.⚖️ Fair test — how does the shadow of a stick change through the day? True or false: the same stick is what we measure. (a) False (b) True
  34. 34.🔍 Which is the odd one out? (a) frosted glass (b) air (c) oily paper (d) tissue paper
  35. 35.True or false: clear plastic film is transparent. (a) False (b) True
  36. 36.🧺 Which of these is not needed for the shadow clock? (a) chalk to mark shadows (b) a straight stick (c) a sunny open place (d) a mirror
  37. 37.🔍 Which is the odd one out? (a) oily paper (b) a brick (c) frosted glass (d) butter paper
  38. 38.🔦 Which of these is translucent? (a) a wooden board (b) a book (c) butter paper (d) a steel plate
  39. 39.🔦 Which of these is opaque? (a) butter paper (b) a wooden board (c) frosted glass (d) tissue paper
  40. 40.🔮 Predict: the Sun is low in the evening sky. The stick’s shadow is ___. (a) round (b) short (c) missing (d) long

Answer key

  1. an object blocks light
  2. needed
  3. tissue paper
  4. shadow length
  5. a magnet
  6. we change it
  7. True
  8. needed
  9. not needed
  10. a cap or hat
  11. False
  12. turmeric powder
  13. chalk to mark shadows
  14. a battery cell
  15. butter paper
  16. True
  17. not needed
  18. a book
  19. Earth keeps spinning
  20. yeast
  21. False
  22. look straight at the Sun
  23. False
  24. False
  25. True
  26. a balloon
  27. False
  28. True
  29. around noon
  30. we keep it the same
  31. a straight stick
  32. a mirror
  33. False
  34. air
  35. True
  36. a mirror
  37. a brick
  38. butter paper
  39. a wooden board
  40. long

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