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Shadow and Sundial Experiment Worksheet

Science experiments lesson 27: Shadows and a sundial · Set 421 · 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.True or false: yeast is needed for the shadow clock. (a) False (b) True
  2. 2.🧺 Three of these are needed for the shadow clock. Which one is NOT needed? (a) turmeric powder (b) a clock to check (c) chalk to mark shadows (d) a sunny open place
  3. 3.🌍 Why does the stick’s shadow move during the day? (a) Earth keeps spinning (b) the stick grows (c) the ground slides (d) the stick walks
  4. 4.🕰️ What is a sundial used for? (a) making rainbows (b) measuring rain (c) weighing things (d) telling the time
  5. 5.🔍 Which is the odd one out? (a) clean water (b) clear glass (c) your hand (d) air
  6. 6.🧺 Three of these are needed for the shadow clock. Which one is NOT needed? (a) a sunny open place (b) a straight stick (c) a mirror (d) chalk to mark shadows
  7. 7.🧺 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) a battery cell (d) chalk to mark shadows
  8. 8.🛟 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
  9. 9.🛟 While watching shadows outdoors, what must you never do? (a) mark with chalk (b) wear a cap (c) sit in the shade (d) look straight at the Sun
  10. 10.True or false: a book is opaque. (a) False (b) True
  11. 11.🧺 Which of these is needed for the shadow clock? (a) yeast (b) a balloon (c) a straight stick (d) a battery cell
  12. 12.🔍 Which is the odd one out? (a) clear glass (b) oily paper (c) air (d) clean water
  13. 13.True or false: a steel plate is opaque. (a) False (b) True
  14. 14.True or false: a battery cell is not needed for the shadow clock. (a) False (b) True
  15. 15.⚖️ 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
  16. 16.🔮 Predict: on a fully cloudy day, the sundial ___. (a) runs faster (b) does not work well (c) shows two times (d) works better
  17. 17.🔍 Which is the odd one out? (a) frosted glass (b) air (c) butter paper (d) oily paper
  18. 18.🧺 Which of these is not needed for the shadow clock? (a) a straight stick (b) a clock to check (c) a sunny open place (d) a balloon
  19. 19.🌞 When is a stick’s shadow the shortest? (a) around noon (b) late evening (c) early morning (d) at night
  20. 20.🔍 Which is the odd one out? (a) a book (b) your hand (c) tissue paper (d) a steel plate
  21. 21.🔮 Predict: the Sun is low in the evening sky. The stick’s shadow is ___. (a) short (b) round (c) long (d) missing
  22. 22.🧺 Do we need a magnet for the shadow clock? (a) needed (b) not needed
  23. 23.⚖️ 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
  24. 24.🔍 Which is the odd one out? (a) frosted glass (b) oily paper (c) butter paper (d) a steel plate
  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 measure it (c) we keep it the same
  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 same stick
  27. 27.🔦 Is your hand opaque, translucent or transparent? (a) opaque (b) transparent (c) translucent
  28. 28.🧺 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 clock to check
  29. 29.🔦 Which of these is translucent? (a) a book (b) clear glass (c) butter paper (d) clear plastic film
  30. 30.🔦 Which of these is translucent? (a) clear glass (b) oily paper (c) a brick (d) a steel plate
  31. 31.True or false: your hand is transparent. (a) True (b) False
  32. 32.🧺 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) a sunny open place
  33. 33.True or false: turmeric powder is needed for the shadow clock. (a) True (b) False
  34. 34.⚖️ Fair test — how does the shadow of a stick change through the day? True or false: the same spot is the one thing we change. (a) False (b) True
  35. 35.🧺 Three of these are needed for the shadow clock. Which one is NOT needed? (a) yeast (b) a sunny open place (c) chalk to mark shadows (d) a clock to check
  36. 36.True or false: air is translucent. (a) True (b) False
  37. 37.🔍 Which is the odd one out? (a) a brick (b) your hand (c) clear glass (d) a steel plate
  38. 38.🔦 Which of these is translucent? (a) tissue paper (b) a steel plate (c) clear plastic film (d) a wooden board
  39. 39.🧺 Do we need yeast for the shadow clock? (a) not needed (b) needed
  40. 40.🧺 Which of these is needed for the shadow clock? (a) a clock to check (b) a mirror (c) a magnet (d) yeast

Answer key

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

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