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Shadow and Sundial Experiment Worksheet

Science experiments lesson 27: Shadows and a sundial · Set 58 · 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.🧺 Do we need a mirror for the shadow clock? (a) needed (b) not needed
  2. 2.🧺 Which of these is needed for the shadow clock? (a) a mirror (b) turmeric powder (c) a battery cell (d) a clock to check
  3. 3.🌅 In the morning the Sun is in the east. Which way does a shadow point? (a) east (b) north (c) west (d) up
  4. 4.⚖️ Fair test — how does the shadow of a stick change through the day? True or false: the same stick is the one thing we change. (a) False (b) True
  5. 5.🌞 When is a stick’s shadow the shortest? (a) at night (b) late evening (c) early morning (d) around noon
  6. 6.🧺 Do we need chalk to mark shadows for the shadow clock? (a) not needed (b) needed
  7. 7.⚖️ Fair test — how does the shadow of a stick change through the day? True or false: the same stick is what we measure. (a) False (b) True
  8. 8.⚖️ Fair test — how does the shadow of a stick change through the day? What do we do with “the same stick”? (a) we measure it (b) we change it (c) we keep it the same
  9. 9.True or false: yeast is needed for the shadow clock. (a) True (b) False
  10. 10.🧺 Which of these is needed for the shadow clock? (a) yeast (b) a straight stick (c) a battery cell (d) turmeric powder
  11. 11.🔦 Is a brick opaque, translucent or transparent? (a) translucent (b) opaque (c) transparent
  12. 12.🛟 What should you wear for a long time in the hot sun? (a) a raincoat (b) a cap or hat (c) nothing on your head (d) a woollen sweater
  13. 13.⚖️ 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 stick (c) the time of day (d) the same spot
  14. 14.True or false: clear glass is opaque. (a) True (b) False
  15. 15.🔦 Which of these is translucent? (a) air (b) butter paper (c) a wooden board (d) a steel plate
  16. 16.True or false: a sunny open place is not needed for the shadow clock. (a) False (b) True
  17. 17.True or false: chalk to mark shadows is needed for the shadow clock. (a) True (b) False
  18. 18.🧺 Do we need yeast for the shadow clock? (a) needed (b) not needed
  19. 19.🔮 Predict: on a fully cloudy day, the sundial ___. (a) shows two times (b) works better (c) does not work well (d) runs faster
  20. 20.True or false: a straight stick is not needed for the shadow clock. (a) False (b) True
  21. 21.True or false: oily paper is translucent. (a) False (b) True
  22. 22.🧺 Three of these are needed for the shadow clock. Which one is NOT needed? (a) a straight stick (b) a mirror (c) a clock to check (d) chalk to mark shadows
  23. 23.True or false: a battery cell is needed for the shadow clock. (a) True (b) False
  24. 24.🔍 Which is the odd one out? (a) frosted glass (b) butter paper (c) oily paper (d) clear plastic film
  25. 25.🔮 Predict: the Sun is low in the evening sky. The stick’s shadow is ___. (a) round (b) missing (c) long (d) short
  26. 26.🧺 Three of these are needed for the shadow clock. Which one is NOT needed? (a) a clock to check (b) turmeric powder (c) a sunny open place (d) a straight stick
  27. 27.⚖️ 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 spot (b) the same stick (c) the time of day (d) shadow length
  28. 28.🔦 Is clean water opaque, translucent or transparent? (a) opaque (b) translucent (c) transparent
  29. 29.True or false: tissue paper is translucent. (a) False (b) True
  30. 30.🧺 Three of these are needed for the shadow clock. Which one is NOT needed? (a) a magnet (b) a sunny open place (c) a straight stick (d) a clock to check
  31. 31.⚖️ Fair test — how does the shadow of a stick change through the day? What do we do with “the same spot”? (a) we measure it (b) we keep it the same (c) we change it
  32. 32.🧺 Do we need turmeric powder for the shadow clock? (a) not needed (b) needed
  33. 33.🔦 Which of these is opaque? (a) frosted glass (b) a brick (c) oily paper (d) clean water
  34. 34.🛟 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
  35. 35.🔍 Which is the odd one out? (a) butter paper (b) a brick (c) your hand (d) a steel plate
  36. 36.⚖️ Fair test — how does the shadow of a stick change through the day? What do we do with “shadow length”? (a) we change it (b) we keep it the same (c) we measure it
  37. 37.🧺 Do we need a clock to check for the shadow clock? (a) needed (b) not needed
  38. 38.🧺 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 sunny open place (d) a balloon
  39. 39.🔦 Is air opaque, translucent or transparent? (a) transparent (b) translucent (c) opaque
  40. 40.🔦 Is clear plastic film opaque, translucent or transparent? (a) transparent (b) opaque (c) translucent

Answer key

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

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