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Shadow and Sundial Experiment Worksheet

Science experiments lesson 27: Shadows and a sundial · Set 260 · 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: butter paper is translucent. (a) False (b) True
  2. 2.🛟 While watching shadows outdoors, what must you never do? (a) wear a cap (b) look straight at the Sun (c) mark with chalk (d) sit in the shade
  3. 3.⚖️ 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
  4. 4.🧺 Which of these is not needed for the shadow clock? (a) a straight stick (b) a balloon (c) a clock to check (d) a sunny open place
  5. 5.🧺 Three of these are needed for the shadow clock. Which one is NOT needed? (a) turmeric powder (b) a straight stick (c) a sunny open place (d) chalk to mark shadows
  6. 6.🛟 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
  7. 7.⚖️ Fair test — how does the shadow of a stick change through the day? Which of these is what we measure? (a) the same spot (b) the same stick (c) the stick kept upright (d) shadow length
  8. 8.🔍 Which is the odd one out? (a) your hand (b) a steel plate (c) a wooden board (d) clear glass
  9. 9.⚖️ Fair test — how does the shadow of a stick change through the day? Which of these is kept the same? (a) the time of day (b) shadow length (c) the stick kept upright
  10. 10.🔦 Is frosted glass opaque, translucent or transparent? (a) transparent (b) translucent (c) opaque
  11. 11.🧺 Three of these are needed for the shadow clock. Which one is NOT needed? (a) a clock to check (b) a straight stick (c) yeast (d) chalk to mark shadows
  12. 12.🧺 Which of these is needed for the shadow clock? (a) a battery cell (b) a clock to check (c) a balloon (d) a magnet
  13. 13.🌍 Why does the stick’s shadow move during the day? (a) the stick grows (b) the ground slides (c) the stick walks (d) Earth keeps spinning
  14. 14.⚖️ Fair test — how does the shadow of a stick change through the day? Which of these is kept the same? (a) shadow length (b) the time of day (c) the same stick
  15. 15.🔍 Which is the odd one out? (a) oily paper (b) frosted glass (c) butter paper (d) your hand
  16. 16.⚖️ 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
  17. 17.True or false: clean water is opaque. (a) False (b) True
  18. 18.True or false: chalk to mark shadows is not needed for the shadow clock. (a) False (b) True
  19. 19.🔦 Is clean water opaque, translucent or transparent? (a) opaque (b) translucent (c) transparent
  20. 20.🔮 Predict: on a fully cloudy day, the sundial ___. (a) runs faster (b) does not work well (c) shows two times (d) works better
  21. 21.🔦 Is butter paper opaque, translucent or transparent? (a) opaque (b) transparent (c) translucent
  22. 22.🔮 Predict: the Sun is low in the evening sky. The stick’s shadow is ___. (a) missing (b) round (c) long (d) short
  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 keep it the same (b) we change it (c) we measure it
  24. 24.True or false: oily paper is transparent. (a) False (b) True
  25. 25.True or false: a magnet is not needed for the shadow clock. (a) True (b) False
  26. 26.True or false: a clock to check is not needed for the shadow clock. (a) True (b) False
  27. 27.🧺 Do we need a magnet for the shadow clock? (a) needed (b) not needed
  28. 28.⚖️ Fair test — how does the shadow of a stick change through the day? Which of these is the one thing we change? (a) shadow length (b) the same spot (c) the same stick (d) the time of day
  29. 29.🔦 Which of these is opaque? (a) clear plastic film (b) a steel plate (c) air (d) tissue paper
  30. 30.True or false: a sunny open place is not needed for the shadow clock. (a) False (b) True
  31. 31.🔦 Which of these is transparent? (a) your hand (b) oily paper (c) clear glass (d) a book
  32. 32.🧺 Do we need a battery cell for the shadow clock? (a) not needed (b) needed
  33. 33.True or false: clear plastic film is opaque. (a) False (b) True
  34. 34.🧺 Do we need a sunny open place for the shadow clock? (a) not needed (b) needed
  35. 35.🔍 Which is the odd one out? (a) butter paper (b) tissue paper (c) a wooden board (d) oily paper
  36. 36.🔦 Which of these is transparent? (a) tissue paper (b) oily paper (c) your hand (d) clean water
  37. 37.🧺 Three of these are needed for the shadow clock. Which one is NOT needed? (a) a clock to check (b) a straight stick (c) chalk to mark shadows (d) a battery cell
  38. 38.⚖️ Fair test — how does the shadow of a stick change through the day? True or false: the time of day is what we measure. (a) False (b) True
  39. 39.🔍 Which is the odd one out? (a) air (b) oily paper (c) tissue paper (d) butter paper
  40. 40.🔦 Is a wooden board opaque, translucent or transparent? (a) opaque (b) transparent (c) translucent

Answer key

  1. True
  2. look straight at the Sun
  3. False
  4. a balloon
  5. turmeric powder
  6. a cap or hat
  7. shadow length
  8. clear glass
  9. the stick kept upright
  10. translucent
  11. yeast
  12. a clock to check
  13. Earth keeps spinning
  14. the same stick
  15. your hand
  16. we keep it the same
  17. False
  18. False
  19. transparent
  20. does not work well
  21. translucent
  22. long
  23. we change it
  24. False
  25. True
  26. False
  27. not needed
  28. the time of day
  29. a steel plate
  30. False
  31. clear glass
  32. not needed
  33. False
  34. needed
  35. a wooden board
  36. clean water
  37. a battery cell
  38. False
  39. air
  40. opaque

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