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Shadow and Sundial Experiment Worksheet

Science experiments lesson 27: Shadows and a sundial · Set 255 · 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 butter paper opaque, translucent or transparent? (a) opaque (b) translucent (c) transparent
  2. 2.🔦 Which of these is translucent? (a) air (b) your hand (c) a brick (d) tissue paper
  3. 3.True or false: clear glass is transparent. (a) True (b) False
  4. 4.🌍 Why does the stick’s shadow move during the day? (a) the ground slides (b) the stick grows (c) Earth keeps spinning (d) the stick walks
  5. 5.True or false: a balloon is not needed for the shadow clock. (a) False (b) True
  6. 6.🛟 What should you wear for a long time in the hot sun? (a) a raincoat (b) a cap or hat (c) a woollen sweater (d) nothing on your head
  7. 7.True or false: your hand is opaque. (a) True (b) False
  8. 8.True or false: turmeric powder is needed for the shadow clock. (a) True (b) False
  9. 9.🧺 Do we need a sunny open place for the shadow clock? (a) not needed (b) needed
  10. 10.🧺 Which of these is not needed for the shadow clock? (a) chalk to mark shadows (b) a sunny open place (c) yeast (d) a straight stick
  11. 11.🌅 In the morning the Sun is in the east. Which way does a shadow point? (a) east (b) up (c) west (d) north
  12. 12.⚖️ 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
  13. 13.🔦 Is clear glass opaque, translucent or transparent? (a) translucent (b) opaque (c) transparent
  14. 14.🔍 Which is the odd one out? (a) your hand (b) tissue paper (c) a book (d) a brick
  15. 15.🧺 Three of these are needed for the shadow clock. Which one is NOT needed? (a) a magnet (b) a clock to check (c) a sunny open place (d) a straight stick
  16. 16.True or false: turmeric powder is not needed for the shadow clock. (a) True (b) False
  17. 17.True or false: oily paper is translucent. (a) False (b) True
  18. 18.🧺 Which of these is not needed for the shadow clock? (a) a clock to check (b) chalk to mark shadows (c) a straight stick (d) a magnet
  19. 19.⚖️ 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) False (b) True
  20. 20.🧺 Which of these is needed for the shadow clock? (a) yeast (b) a battery cell (c) a clock to check (d) a magnet
  21. 21.🧺 Which of these is not needed for the shadow clock? (a) chalk to mark shadows (b) a balloon (c) a straight stick (d) a clock to check
  22. 22.🧺 Do we need a clock to check for the shadow clock? (a) not needed (b) needed
  23. 23.True or false: a straight stick is not needed for the shadow clock. (a) False (b) True
  24. 24.🔦 Is clear plastic film opaque, translucent or transparent? (a) translucent (b) transparent (c) opaque
  25. 25.True or false: yeast is not needed for the shadow clock. (a) False (b) True
  26. 26.True or false: a brick is translucent. (a) False (b) True
  27. 27.🧺 Which of these is needed for the shadow clock? (a) a magnet (b) a mirror (c) a sunny open place (d) a battery cell
  28. 28.🛟 While watching shadows outdoors, what must you never do? (a) look straight at the Sun (b) wear a cap (c) mark with chalk (d) sit in the shade
  29. 29.True or false: air is opaque. (a) False (b) True
  30. 30.🔦 Which of these is opaque? (a) butter paper (b) oily paper (c) frosted glass (d) a wooden board
  31. 31.🧺 Three of these are needed for the shadow clock. Which one is NOT needed? (a) a clock to check (b) a straight stick (c) chalk to mark shadows (d) a battery cell
  32. 32.🔮 Predict: the Sun is low in the evening sky. The stick’s shadow is ___. (a) long (b) short (c) round (d) missing
  33. 33.True or false: tissue paper is translucent. (a) True (b) False
  34. 34.🔮 Predict: on a fully cloudy day, the sundial ___. (a) shows two times (b) works better (c) runs faster (d) does not work well
  35. 35.🧺 Three of these are needed for the shadow clock. Which one is NOT needed? (a) a straight stick (b) a balloon (c) chalk to mark shadows (d) a sunny open place
  36. 36.🔦 Which of these is opaque? (a) clear plastic film (b) a book (c) tissue paper (d) oily paper
  37. 37.🔦 Which of these is translucent? (a) clear plastic film (b) oily paper (c) a book (d) clear glass
  38. 38.⚖️ 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
  39. 39.True or false: a balloon is needed for the shadow clock. (a) False (b) True
  40. 40.⚖️ Fair test — how does the shadow of a stick change through the day? What do we do with “the same spot”? (a) we keep it the same (b) we change it (c) we measure it

Answer key

  1. translucent
  2. tissue paper
  3. True
  4. Earth keeps spinning
  5. True
  6. a cap or hat
  7. True
  8. False
  9. needed
  10. yeast
  11. west
  12. False
  13. transparent
  14. tissue paper
  15. a magnet
  16. True
  17. True
  18. a magnet
  19. True
  20. a clock to check
  21. a balloon
  22. needed
  23. False
  24. transparent
  25. True
  26. False
  27. a sunny open place
  28. look straight at the Sun
  29. False
  30. a wooden board
  31. a battery cell
  32. long
  33. True
  34. does not work well
  35. a balloon
  36. a book
  37. oily paper
  38. the stick kept upright
  39. False
  40. we keep it the same

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