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Shadow and Sundial Experiment Worksheet

Science experiments lesson 27: Shadows and a sundial · Set 178 · 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: chalk to mark shadows is needed for the shadow clock. (a) True (b) False
  2. 2.🧺 Do we need a balloon for the shadow clock? (a) not needed (b) needed
  3. 3.🛟 What should you wear for a long time in the hot sun? (a) nothing on your head (b) a woollen sweater (c) a cap or hat (d) a raincoat
  4. 4.True or false: clean water is transparent. (a) False (b) True
  5. 5.🔮 Predict: the Sun is low in the evening sky. The stick’s shadow is ___. (a) round (b) long (c) short (d) missing
  6. 6.⚖️ 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
  7. 7.🔍 Which is the odd one out? (a) air (b) a steel plate (c) clear plastic film (d) clear glass
  8. 8.🔍 Which is the odd one out? (a) a wooden board (b) a book (c) oily paper (d) a steel plate
  9. 9.⚖️ 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 change it (c) we keep it the same
  10. 10.🧺 Do we need a straight stick for the shadow clock? (a) not needed (b) needed
  11. 11.🧺 Which of these is needed for the shadow clock? (a) a magnet (b) a balloon (c) a sunny open place (d) a battery cell
  12. 12.True or false: oily paper is translucent. (a) True (b) False
  13. 13.🧺 Three of these are needed for the shadow clock. Which one is NOT needed? (a) a straight stick (b) a clock to check (c) yeast (d) a sunny open place
  14. 14.🔦 Which of these is transparent? (a) tissue paper (b) clear glass (c) frosted glass (d) oily paper
  15. 15.⚖️ 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) True (b) False
  16. 16.⚖️ Fair test — how does the shadow of a stick change through the day? What do we do with “the same spot”? (a) we change it (b) we keep it the same (c) we measure it
  17. 17.🌍 Why does the stick’s shadow move during the day? (a) the ground slides (b) Earth keeps spinning (c) the stick grows (d) the stick walks
  18. 18.🔦 Is a wooden board opaque, translucent or transparent? (a) translucent (b) transparent (c) opaque
  19. 19.🔍 Which is the odd one out? (a) a brick (b) a steel plate (c) a wooden board (d) clean water
  20. 20.🧺 Which of these is not needed for the shadow clock? (a) a clock to check (b) a straight stick (c) yeast (d) a sunny open place
  21. 21.🔦 Is clean water opaque, translucent or transparent? (a) transparent (b) opaque (c) translucent
  22. 22.⚖️ 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) shadow length (c) the same spot (d) the time of day
  23. 23.⚖️ 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 change it (c) we keep it the same
  24. 24.True or false: clear glass is transparent. (a) True (b) False
  25. 25.🧺 Three of these are needed for the shadow clock. Which one is NOT needed? (a) chalk to mark shadows (b) a sunny open place (c) a battery cell (d) a clock to check
  26. 26.🔦 Which of these is opaque? (a) a book (b) oily paper (c) frosted glass (d) air
  27. 27.True or false: frosted glass is translucent. (a) False (b) True
  28. 28.🧺 Which of these is needed for the shadow clock? (a) a battery cell (b) a mirror (c) chalk to mark shadows (d) turmeric powder
  29. 29.🧺 Which of these is not needed for the shadow clock? (a) chalk to mark shadows (b) a sunny open place (c) a battery cell (d) a clock to check
  30. 30.🛟 While watching shadows outdoors, what must you never do? (a) sit in the shade (b) mark with chalk (c) wear a cap (d) look straight at the Sun
  31. 31.🔦 Is tissue paper opaque, translucent or transparent? (a) opaque (b) transparent (c) translucent
  32. 32.True or false: a magnet is not needed for the shadow clock. (a) False (b) True
  33. 33.🔦 Is oily paper opaque, translucent or transparent? (a) transparent (b) translucent (c) opaque
  34. 34.🧺 Three of these are needed for the shadow clock. Which one is NOT needed? (a) chalk to mark shadows (b) a mirror (c) a sunny open place (d) a clock to check
  35. 35.True or false: clear plastic film is transparent. (a) True (b) False
  36. 36.🧺 Do we need chalk to mark shadows for the shadow clock? (a) needed (b) not needed
  37. 37.🧺 Which of these is not needed for the shadow clock? (a) a balloon (b) a sunny open place (c) chalk to mark shadows (d) a straight stick
  38. 38.True or false: a balloon is not needed for the shadow clock. (a) True (b) False
  39. 39.🔦 Which of these is translucent? (a) butter paper (b) a wooden board (c) a book (d) a brick
  40. 40.🧺 Which of these is needed for the shadow clock? (a) a straight stick (b) a battery cell (c) a mirror (d) turmeric powder

Answer key

  1. True
  2. not needed
  3. a cap or hat
  4. True
  5. long
  6. True
  7. a steel plate
  8. oily paper
  9. we keep it the same
  10. needed
  11. a sunny open place
  12. True
  13. yeast
  14. clear glass
  15. False
  16. we keep it the same
  17. Earth keeps spinning
  18. opaque
  19. clean water
  20. yeast
  21. transparent
  22. the time of day
  23. we change it
  24. True
  25. a battery cell
  26. a book
  27. True
  28. chalk to mark shadows
  29. a battery cell
  30. look straight at the Sun
  31. translucent
  32. True
  33. translucent
  34. a mirror
  35. True
  36. needed
  37. a balloon
  38. True
  39. butter paper
  40. a straight stick

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