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Shadow and Sundial Experiment Worksheet

Science experiments lesson 27: Shadows and a sundial · Set 348 · 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.🧺 Three of these are needed for the shadow clock. Which one is NOT needed? (a) a clock to check (b) chalk to mark shadows (c) a mirror (d) a sunny open place
  2. 2.True or false: your hand is transparent. (a) False (b) True
  3. 3.🧺 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 battery cell (d) chalk to mark shadows
  4. 4.🔦 Is a book opaque, translucent or transparent? (a) opaque (b) translucent (c) transparent
  5. 5.🔦 Is a brick opaque, translucent or transparent? (a) transparent (b) opaque (c) translucent
  6. 6.🧺 Three of these are needed for the shadow clock. Which one is NOT needed? (a) a magnet (b) a straight stick (c) chalk to mark shadows (d) a sunny open place
  7. 7.True or false: a book is transparent. (a) False (b) True
  8. 8.🧺 Do we need a mirror for the shadow clock? (a) not needed (b) needed
  9. 9.🧺 Do we need a straight stick for the shadow clock? (a) not needed (b) needed
  10. 10.🔦 Is clear glass opaque, translucent or transparent? (a) transparent (b) translucent (c) opaque
  11. 11.True or false: your hand is opaque. (a) False (b) True
  12. 12.🔍 Which is the odd one out? (a) a wooden board (b) clean water (c) a book (d) a brick
  13. 13.🧺 Do we need yeast for the shadow clock? (a) needed (b) not needed
  14. 14.🛟 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
  15. 15.🔍 Which is the odd one out? (a) clear plastic film (b) tissue paper (c) butter paper (d) frosted glass
  16. 16.⚖️ 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 same spot
  17. 17.🔍 Which is the odd one out? (a) air (b) a wooden board (c) clear glass (d) clean water
  18. 18.⚖️ Fair test — how does the shadow of a stick change through the day? Which of these is what we measure? (a) shadow length (b) the same spot (c) the stick kept upright (d) the same stick
  19. 19.True or false: a balloon is not needed for the shadow clock. (a) True (b) False
  20. 20.⚖️ 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) False (b) True
  21. 21.⚖️ Fair test — how does the shadow of a stick change through the day? Which of these is kept the same? (a) the same stick (b) shadow length (c) the time of day
  22. 22.🌞 When is a stick’s shadow the shortest? (a) at night (b) early morning (c) around noon (d) late evening
  23. 23.⚖️ Fair test — how does the shadow of a stick change through the day? Which of these is the one thing we change? (a) the same stick (b) the time of day (c) shadow length (d) the stick kept upright
  24. 24.True or false: chalk to mark shadows is not needed for the shadow clock. (a) False (b) True
  25. 25.🔍 Which is the odd one out? (a) air (b) clear glass (c) clean water (d) butter paper
  26. 26.⚖️ 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
  27. 27.True or false: yeast is not needed for the shadow clock. (a) True (b) False
  28. 28.True or false: a sunny open place is needed for the shadow clock. (a) False (b) True
  29. 29.🔦 Which of these is translucent? (a) oily paper (b) air (c) a brick (d) a book
  30. 30.🛟 What should you wear for a long time in the hot sun? (a) a raincoat (b) a woollen sweater (c) nothing on your head (d) a cap or hat
  31. 31.⚖️ 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) True (b) False
  32. 32.True or false: a battery cell is needed for the shadow clock. (a) False (b) True
  33. 33.🧺 Three of these are needed for the shadow clock. Which one is NOT needed? (a) a sunny open place (b) a clock to check (c) turmeric powder (d) a straight stick
  34. 34.🌅 In the morning the Sun is in the east. Which way does a shadow point? (a) up (b) east (c) north (d) west
  35. 35.🧺 Which of these is not needed for the shadow clock? (a) a clock to check (b) turmeric powder (c) a sunny open place (d) a straight stick
  36. 36.🔦 Which of these is transparent? (a) a book (b) tissue paper (c) oily paper (d) clean water
  37. 37.⚖️ 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 measure it (c) we change it
  38. 38.🔮 Predict: on a fully cloudy day, the sundial ___. (a) shows two times (b) runs faster (c) does not work well (d) works better
  39. 39.🔦 Is a steel plate opaque, translucent or transparent? (a) translucent (b) opaque (c) transparent
  40. 40.True or false: yeast is needed for the shadow clock. (a) True (b) False

Answer key

  1. a mirror
  2. False
  3. a battery cell
  4. opaque
  5. opaque
  6. a magnet
  7. False
  8. not needed
  9. needed
  10. transparent
  11. True
  12. clean water
  13. not needed
  14. look straight at the Sun
  15. clear plastic film
  16. the same spot
  17. a wooden board
  18. shadow length
  19. True
  20. True
  21. the same stick
  22. around noon
  23. the time of day
  24. False
  25. butter paper
  26. the stick kept upright
  27. True
  28. True
  29. oily paper
  30. a cap or hat
  31. True
  32. False
  33. turmeric powder
  34. west
  35. turmeric powder
  36. clean water
  37. we change it
  38. does not work well
  39. opaque
  40. False

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