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Shadow and Sundial Experiment Worksheet

Science experiments lesson 27: Shadows and a sundial · Set 264 · 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.🧺 Which of these is not needed for the shadow clock? (a) a sunny open place (b) a clock to check (c) chalk to mark shadows (d) a mirror
  2. 2.🧺 Which of these is needed for the shadow clock? (a) a battery cell (b) a balloon (c) a mirror (d) a sunny open place
  3. 3.🔦 Is a book opaque, translucent or transparent? (a) opaque (b) transparent (c) translucent
  4. 4.🛟 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
  5. 5.⚖️ 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
  6. 6.⚖️ 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
  7. 7.🌅 In the morning the Sun is in the east. Which way does a shadow point? (a) west (b) up (c) east (d) north
  8. 8.🔦 Is frosted glass opaque, translucent or transparent? (a) translucent (b) opaque (c) transparent
  9. 9.🧺 Three of these are needed for the shadow clock. Which one is NOT needed? (a) a sunny open place (b) yeast (c) chalk to mark shadows (d) a straight stick
  10. 10.🔍 Which is the odd one out? (a) frosted glass (b) butter paper (c) a book (d) tissue paper
  11. 11.⚖️ 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
  12. 12.True or false: tissue paper is opaque. (a) True (b) False
  13. 13.True or false: a straight stick is not needed for the shadow clock. (a) False (b) True
  14. 14.🧺 Do we need turmeric powder for the shadow clock? (a) needed (b) not needed
  15. 15.🧺 Do we need a battery cell for the shadow clock? (a) needed (b) not needed
  16. 16.True or false: oily paper is transparent. (a) False (b) True
  17. 17.🔮 Predict: on a fully cloudy day, the sundial ___. (a) shows two times (b) does not work well (c) runs faster (d) works better
  18. 18.🧺 Do we need a magnet for the shadow clock? (a) not needed (b) needed
  19. 19.⚖️ Fair test — how does the shadow of a stick change through the day? True or false: shadow length is the one thing we change. (a) True (b) False
  20. 20.⚖️ 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) True (b) False
  21. 21.🧺 Three of these are needed for the shadow clock. Which one is NOT needed? (a) turmeric powder (b) chalk to mark shadows (c) a clock to check (d) a straight stick
  22. 22.🛟 What should you wear for a long time in the hot sun? (a) a raincoat (b) a woollen sweater (c) a cap or hat (d) nothing on your head
  23. 23.⚖️ 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
  24. 24.🧺 Three of these are needed for the shadow clock. Which one is NOT needed? (a) a magnet (b) chalk to mark shadows (c) a clock to check (d) a straight stick
  25. 25.True or false: clear glass is translucent. (a) False (b) True
  26. 26.True or false: butter paper is translucent. (a) False (b) True
  27. 27.🧺 Do we need yeast for the shadow clock? (a) needed (b) not needed
  28. 28.🔍 Which is the odd one out? (a) clear plastic film (b) a wooden board (c) air (d) clear glass
  29. 29.🔦 Which of these is translucent? (a) a steel plate (b) a book (c) frosted glass (d) clear plastic film
  30. 30.🌞 When is a stick’s shadow the shortest? (a) late evening (b) early morning (c) around noon (d) at night
  31. 31.🔦 Which of these is translucent? (a) clear plastic film (b) a book (c) clear glass (d) tissue paper
  32. 32.🕰️ What is a sundial used for? (a) making rainbows (b) telling the time (c) weighing things (d) measuring rain
  33. 33.True or false: a wooden board is opaque. (a) True (b) False
  34. 34.🔦 Is a steel plate opaque, translucent or transparent? (a) transparent (b) translucent (c) opaque
  35. 35.🧺 Which of these is needed for the shadow clock? (a) yeast (b) a balloon (c) a straight stick (d) a mirror
  36. 36.🧺 Which of these is needed for the shadow clock? (a) a magnet (b) a mirror (c) turmeric powder (d) a clock to check
  37. 37.🔮 Predict: the Sun is low in the evening sky. The stick’s shadow is ___. (a) round (b) missing (c) long (d) short
  38. 38.⚖️ Fair test — how does the shadow of a stick change through the day? True or false: the time of day is kept the same. (a) True (b) False
  39. 39.🔦 Is clear plastic film opaque, translucent or transparent? (a) translucent (b) opaque (c) transparent
  40. 40.True or false: a sunny open place is not needed for the shadow clock. (a) False (b) True

Answer key

  1. a mirror
  2. a sunny open place
  3. opaque
  4. look straight at the Sun
  5. we change it
  6. True
  7. west
  8. translucent
  9. yeast
  10. a book
  11. we measure it
  12. False
  13. False
  14. not needed
  15. not needed
  16. False
  17. does not work well
  18. not needed
  19. False
  20. False
  21. turmeric powder
  22. a cap or hat
  23. we keep it the same
  24. a magnet
  25. False
  26. True
  27. not needed
  28. a wooden board
  29. frosted glass
  30. around noon
  31. tissue paper
  32. telling the time
  33. True
  34. opaque
  35. a straight stick
  36. a clock to check
  37. long
  38. False
  39. transparent
  40. False

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