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Shadow and Sundial Experiment Worksheet

Science experiments lesson 27: Shadows and a sundial · Set 973 · 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 not needed for the shadow clock. (a) True (b) False
  2. 2.🧺 Which of these is needed for the shadow clock? (a) a mirror (b) a magnet (c) a balloon (d) a straight stick
  3. 3.True or false: a brick is opaque. (a) True (b) False
  4. 4.⚖️ Fair test — how does the shadow of a stick change through the day? What do we do with “the stick kept upright”? (a) we keep it the same (b) we measure it (c) we change it
  5. 5.⚖️ Fair test — how does the shadow of a stick change through the day? What do we do with “shadow length”? (a) we measure it (b) we keep it the same (c) we change it
  6. 6.🧺 Which of these is needed for the shadow clock? (a) a balloon (b) yeast (c) a battery cell (d) a sunny open place
  7. 7.🔮 Predict: on a fully cloudy day, the sundial ___. (a) shows two times (b) does not work well (c) works better (d) runs faster
  8. 8.🔍 Which is the odd one out? (a) frosted glass (b) a wooden board (c) a book (d) a brick
  9. 9.🔦 Which of these is transparent? (a) clear plastic film (b) frosted glass (c) a wooden board (d) butter paper
  10. 10.🧺 Do we need a sunny open place for the shadow clock? (a) not needed (b) needed
  11. 11.🔦 Which of these is opaque? (a) butter paper (b) a steel plate (c) clean water (d) clear glass
  12. 12.🧺 Three of these are needed for the shadow clock. Which one is NOT needed? (a) a mirror (b) chalk to mark shadows (c) a sunny open place (d) a clock to check
  13. 13.🧺 Do we need a balloon for the shadow clock? (a) needed (b) not needed
  14. 14.🔦 Which of these is opaque? (a) a book (b) air (c) frosted glass (d) clear glass
  15. 15.🧺 Three of these are needed for the shadow clock. Which one is NOT needed? (a) a balloon (b) a sunny open place (c) a clock to check (d) a straight stick
  16. 16.⚖️ 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 same stick (d) the time of day
  17. 17.True or false: a mirror is not needed for the shadow clock. (a) True (b) False
  18. 18.🌅 In the morning the Sun is in the east. Which way does a shadow point? (a) up (b) west (c) north (d) east
  19. 19.⚖️ Fair test — how does the shadow of a stick change through the day? True or false: the same spot is what we measure. (a) False (b) True
  20. 20.🛟 What should you wear for a long time in the hot sun? (a) a woollen sweater (b) a raincoat (c) a cap or hat (d) nothing on your head
  21. 21.True or false: a magnet is needed for the shadow clock. (a) True (b) False
  22. 22.🧺 Which of these is not needed for the shadow clock? (a) a straight stick (b) a clock to check (c) turmeric powder (d) a sunny open place
  23. 23.🔦 Is oily paper opaque, translucent or transparent? (a) transparent (b) opaque (c) translucent
  24. 24.🧺 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) yeast (d) a sunny open place
  25. 25.🧺 Which of these is needed for the shadow clock? (a) a magnet (b) yeast (c) a battery cell (d) chalk to mark shadows
  26. 26.True or false: turmeric powder is needed for the shadow clock. (a) True (b) False
  27. 27.🔦 Is a wooden board opaque, translucent or transparent? (a) transparent (b) translucent (c) opaque
  28. 28.🧺 Do we need a magnet for the shadow clock? (a) not needed (b) needed
  29. 29.🔮 Predict: the Sun is low in the evening sky. The stick’s shadow is ___. (a) short (b) long (c) round (d) missing
  30. 30.🧺 Which of these is not needed for the shadow clock? (a) a clock to check (b) a balloon (c) a sunny open place (d) a straight stick
  31. 31.True or false: clear glass is opaque. (a) False (b) True
  32. 32.⚖️ 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) False (b) True
  33. 33.🛟 While watching shadows outdoors, what must you never do? (a) mark with chalk (b) sit in the shade (c) look straight at the Sun (d) wear a cap
  34. 34.🔍 Which is the odd one out? (a) clear plastic film (b) clear glass (c) oily paper (d) clean water
  35. 35.🔦 Is frosted glass opaque, translucent or transparent? (a) opaque (b) transparent (c) translucent
  36. 36.🧺 Do we need turmeric powder for the shadow clock? (a) needed (b) not needed
  37. 37.⚖️ Fair test — how does the shadow of a stick change through the day? True or false: shadow length is kept the same. (a) True (b) False
  38. 38.🧺 Which of these is needed for the shadow clock? (a) turmeric powder (b) yeast (c) a balloon (d) a clock to check
  39. 39.🧺 Three of these are needed for the shadow clock. Which one is NOT needed? (a) a straight stick (b) a magnet (c) chalk to mark shadows (d) a sunny open place
  40. 40.True or false: a straight stick is not needed for the shadow clock. (a) True (b) False

Answer key

  1. False
  2. a straight stick
  3. True
  4. we keep it the same
  5. we measure it
  6. a sunny open place
  7. does not work well
  8. frosted glass
  9. clear plastic film
  10. needed
  11. a steel plate
  12. a mirror
  13. not needed
  14. a book
  15. a balloon
  16. the time of day
  17. True
  18. west
  19. False
  20. a cap or hat
  21. False
  22. turmeric powder
  23. translucent
  24. yeast
  25. chalk to mark shadows
  26. False
  27. opaque
  28. not needed
  29. long
  30. a balloon
  31. False
  32. False
  33. look straight at the Sun
  34. oily paper
  35. translucent
  36. not needed
  37. False
  38. a clock to check
  39. a magnet
  40. False

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