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Shadow and Sundial Experiment Worksheet

Science experiments lesson 27: Shadows and a sundial · Set 108 · 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.⚖️ Fair test — how does the shadow of a stick change through the day? True or false: the same spot is what we measure. (a) True (b) False
  2. 2.🛟 What should you wear for a long time in the hot sun? (a) a cap or hat (b) a raincoat (c) nothing on your head (d) a woollen sweater
  3. 3.🔦 Is a wooden board opaque, translucent or transparent? (a) transparent (b) translucent (c) opaque
  4. 4.🧺 Three of these are needed for the shadow clock. Which one is NOT needed? (a) a straight stick (b) a clock to check (c) chalk to mark shadows (d) a magnet
  5. 5.True or false: a clock to check is not needed for the shadow clock. (a) True (b) False
  6. 6.🛟 While watching shadows outdoors, what must you never do? (a) mark with chalk (b) sit in the shade (c) wear a cap (d) look straight at the Sun
  7. 7.True or false: your hand is transparent. (a) True (b) False
  8. 8.🔦 Which of these is transparent? (a) frosted glass (b) a wooden board (c) clear glass (d) oily paper
  9. 9.🧺 Which of these is not needed for the shadow clock? (a) a sunny open place (b) a mirror (c) a straight stick (d) chalk to mark shadows
  10. 10.True or false: a wooden board is opaque. (a) True (b) False
  11. 11.⚖️ Fair test — how does the shadow of a stick change through the day? Which of these is the one thing we change? (a) the time of day (b) shadow length (c) the stick kept upright (d) the same spot
  12. 12.🔦 Which of these is opaque? (a) butter paper (b) air (c) tissue paper (d) a wooden board
  13. 13.🧺 Three of these are needed for the shadow clock. Which one is NOT needed? (a) a clock to check (b) a balloon (c) a straight stick (d) chalk to mark shadows
  14. 14.True or false: a sunny open place is not needed for the shadow clock. (a) True (b) False
  15. 15.🧺 Which of these is needed for the shadow clock? (a) yeast (b) turmeric powder (c) a battery cell (d) a clock to check
  16. 16.True or false: a magnet is needed for the shadow clock. (a) False (b) True
  17. 17.🔦 Is a book opaque, translucent or transparent? (a) translucent (b) opaque (c) transparent
  18. 18.True or false: a sunny open place is needed for the shadow clock. (a) True (b) False
  19. 19.🔦 Is a steel plate opaque, translucent or transparent? (a) translucent (b) transparent (c) opaque
  20. 20.🧺 Three of these are needed for the shadow clock. Which one is NOT needed? (a) chalk to mark shadows (b) a straight stick (c) a clock to check (d) turmeric powder
  21. 21.True or false: butter paper is opaque. (a) False (b) True
  22. 22.🧺 Which of these is needed for the shadow clock? (a) yeast (b) a mirror (c) a balloon (d) chalk to mark shadows
  23. 23.🧺 Do we need yeast for the shadow clock? (a) needed (b) not needed
  24. 24.🔍 Which is the odd one out? (a) butter paper (b) a steel plate (c) your hand (d) a brick
  25. 25.⚖️ 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 keep it the same (c) we measure it
  26. 26.🧺 Three of these are needed for the shadow clock. Which one is NOT needed? (a) yeast (b) chalk to mark shadows (c) a sunny open place (d) a clock to check
  27. 27.⚖️ 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
  28. 28.🌍 Why does the stick’s shadow move during the day? (a) the stick walks (b) the ground slides (c) the stick grows (d) Earth keeps spinning
  29. 29.⚖️ 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
  30. 30.🧺 Do we need a straight stick for the shadow clock? (a) not needed (b) needed
  31. 31.🔮 Predict: on a fully cloudy day, the sundial ___. (a) works better (b) shows two times (c) runs faster (d) does not work well
  32. 32.🧺 Three of these are needed for the shadow clock. Which one is NOT needed? (a) a straight stick (b) chalk to mark shadows (c) a clock to check (d) a mirror
  33. 33.⚖️ 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 spot (c) the same stick (d) shadow length
  34. 34.True or false: clear glass is opaque. (a) True (b) False
  35. 35.🌞 When is a stick’s shadow the shortest? (a) at night (b) early morning (c) late evening (d) around noon
  36. 36.⚖️ 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
  37. 37.⚖️ Fair test — how does the shadow of a stick change through the day? What do we do with “shadow length”? (a) we keep it the same (b) we measure it (c) we change it
  38. 38.🧺 Which of these is not needed for the shadow clock? (a) chalk to mark shadows (b) a clock to check (c) a sunny open place (d) a magnet
  39. 39.⚖️ Fair test — how does the shadow of a stick change through the day? True or false: the same stick is kept the same. (a) False (b) True
  40. 40.🔍 Which is the odd one out? (a) a wooden board (b) clear glass (c) a brick (d) your hand

Answer key

  1. False
  2. a cap or hat
  3. opaque
  4. a magnet
  5. False
  6. look straight at the Sun
  7. False
  8. clear glass
  9. a mirror
  10. True
  11. the time of day
  12. a wooden board
  13. a balloon
  14. False
  15. a clock to check
  16. False
  17. opaque
  18. True
  19. opaque
  20. turmeric powder
  21. False
  22. chalk to mark shadows
  23. not needed
  24. butter paper
  25. we keep it the same
  26. yeast
  27. True
  28. Earth keeps spinning
  29. True
  30. needed
  31. does not work well
  32. a mirror
  33. shadow length
  34. False
  35. around noon
  36. we change it
  37. we measure it
  38. a magnet
  39. True
  40. clear glass

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