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Shadow and Sundial Experiment Worksheet

Science experiments lesson 27: Shadows and a sundial · Set 915 · 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.🔦 Is clean water opaque, translucent or transparent? (a) transparent (b) translucent (c) opaque
  2. 2.🧺 Do we need a sunny open place for the shadow clock? (a) not needed (b) needed
  3. 3.⚖️ 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
  4. 4.🔍 Which is the odd one out? (a) your hand (b) tissue paper (c) frosted glass (d) butter paper
  5. 5.True or false: a wooden board is opaque. (a) True (b) False
  6. 6.🔍 Which is the odd one out? (a) clean water (b) air (c) clear plastic film (d) a book
  7. 7.🔮 Predict: on a fully cloudy day, the sundial ___. (a) works better (b) runs faster (c) does not work well (d) shows two times
  8. 8.🧺 Which of these is not needed for the shadow clock? (a) a mirror (b) a clock to check (c) a sunny open place (d) chalk to mark shadows
  9. 9.🧺 Which of these is needed for the shadow clock? (a) turmeric powder (b) a straight stick (c) a battery cell (d) yeast
  10. 10.🧺 Do we need turmeric powder for the shadow clock? (a) not needed (b) needed
  11. 11.True or false: a magnet is needed for the shadow clock. (a) True (b) False
  12. 12.⚖️ Fair test — how does the shadow of a stick change through the day? True or false: the same stick is kept the same. (a) True (b) False
  13. 13.🔦 Is a steel plate opaque, translucent or transparent? (a) opaque (b) transparent (c) translucent
  14. 14.🧺 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 magnet
  15. 15.🔦 Is tissue paper opaque, translucent or transparent? (a) opaque (b) transparent (c) translucent
  16. 16.🧺 Three of these are needed for the shadow clock. Which one is NOT needed? (a) a straight stick (b) a clock to check (c) a sunny open place (d) a battery cell
  17. 17.True or false: a battery cell is needed for the shadow clock. (a) False (b) True
  18. 18.🧺 Do we need a mirror for the shadow clock? (a) not needed (b) needed
  19. 19.🌍 Why does the stick’s shadow move during the day? (a) the stick grows (b) Earth keeps spinning (c) the ground slides (d) the stick walks
  20. 20.🧺 Which of these is needed for the shadow clock? (a) turmeric powder (b) a battery cell (c) a clock to check (d) a mirror
  21. 21.True or false: a mirror is needed for the shadow clock. (a) True (b) False
  22. 22.🛟 While watching shadows outdoors, what must you never do? (a) look straight at the Sun (b) sit in the shade (c) mark with chalk (d) wear a cap
  23. 23.⚖️ Fair test — how does the shadow of a stick change through the day? True or false: the same spot is kept the same. (a) True (b) False
  24. 24.True or false: butter paper is opaque. (a) False (b) True
  25. 25.🧺 Which of these is not needed for the shadow clock? (a) yeast (b) a sunny open place (c) chalk to mark shadows (d) a straight stick
  26. 26.⚖️ Fair test — how does the shadow of a stick change through the day? What do we do with “the stick kept upright”? (a) we change it (b) we measure it (c) we keep it the same
  27. 27.🧺 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
  28. 28.🔦 Is clear glass opaque, translucent or transparent? (a) transparent (b) translucent (c) opaque
  29. 29.🧺 Do we need a balloon for the shadow clock? (a) not needed (b) needed
  30. 30.🔦 Which of these is opaque? (a) clear plastic film (b) butter paper (c) clean water (d) a book
  31. 31.True or false: a clock to check is needed for the shadow clock. (a) False (b) True
  32. 32.🔍 Which is the odd one out? (a) tissue paper (b) butter paper (c) oily paper (d) clear glass
  33. 33.True or false: yeast is not needed for the shadow clock. (a) False (b) True
  34. 34.🧺 Do we need yeast for the shadow clock? (a) needed (b) not needed
  35. 35.🧺 Do we need a straight stick for the shadow clock? (a) needed (b) not needed
  36. 36.🌞 When is a stick’s shadow the shortest? (a) late evening (b) early morning (c) at night (d) around noon
  37. 37.🌅 In the morning the Sun is in the east. Which way does a shadow point? (a) north (b) west (c) up (d) east
  38. 38.True or false: chalk to mark shadows is needed for the shadow clock. (a) False (b) True
  39. 39.🛟 What should you wear for a long time in the hot sun? (a) a woollen sweater (b) a cap or hat (c) nothing on your head (d) a raincoat
  40. 40.True or false: chalk to mark shadows is not needed for the shadow clock. (a) True (b) False

Answer key

  1. transparent
  2. needed
  3. the same stick
  4. your hand
  5. True
  6. a book
  7. does not work well
  8. a mirror
  9. a straight stick
  10. not needed
  11. False
  12. True
  13. opaque
  14. a magnet
  15. translucent
  16. a battery cell
  17. False
  18. not needed
  19. Earth keeps spinning
  20. a clock to check
  21. False
  22. look straight at the Sun
  23. True
  24. False
  25. yeast
  26. we keep it the same
  27. a mirror
  28. transparent
  29. not needed
  30. a book
  31. True
  32. clear glass
  33. True
  34. not needed
  35. needed
  36. around noon
  37. west
  38. True
  39. a cap or hat
  40. False

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