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Shadow and Sundial Experiment Worksheet

Science experiments lesson 27: Shadows and a sundial · Set 138 · 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 straight stick (b) a sunny open place (c) a mirror (d) a clock to check
  2. 2.⚖️ Fair test — how does the shadow of a stick change through the day? Which of these is the one thing we change? (a) shadow length (b) the stick kept upright (c) the time of day (d) the same spot
  3. 3.⚖️ Fair test — how does the shadow of a stick change through the day? What do we do with “the time of day”? (a) we change it (b) we measure it (c) we keep it the same
  4. 4.🧺 Which of these is needed for the shadow clock? (a) a balloon (b) a magnet (c) yeast (d) a sunny open place
  5. 5.🧺 Three of these are needed for the shadow clock. Which one is NOT needed? (a) a clock to check (b) a sunny open place (c) a straight stick (d) a battery cell
  6. 6.True or false: a mirror is needed for the shadow clock. (a) False (b) True
  7. 7.🧺 Which of these is not needed for the shadow clock? (a) chalk to mark shadows (b) yeast (c) a straight stick (d) a clock to check
  8. 8.🧺 Do we need a sunny open place for the shadow clock? (a) not needed (b) needed
  9. 9.🔮 Predict: you move a torch closer to your hand. The shadow on the wall gets ___. (a) bigger (b) coloured (c) smaller (d) brighter
  10. 10.True or false: a steel plate is opaque. (a) False (b) True
  11. 11.True or false: a battery cell is not needed for the shadow clock. (a) True (b) False
  12. 12.🔍 Which is the odd one out? (a) oily paper (b) a brick (c) butter paper (d) frosted glass
  13. 13.🧺 Three of these are needed for the shadow clock. Which one is NOT needed? (a) chalk to mark shadows (b) a clock to check (c) a mirror (d) a straight stick
  14. 14.⚖️ Fair test — how does the shadow of a stick change through the day? What do we do with “the stick kept upright”? (a) we keep it the same (b) we measure it (c) we change it
  15. 15.🔮 Predict: the Sun is low in the evening sky. The stick’s shadow is ___. (a) missing (b) long (c) round (d) short
  16. 16.🌍 Why does the stick’s shadow move during the day? (a) the ground slides (b) the stick walks (c) the stick grows (d) Earth keeps spinning
  17. 17.🧺 Three of these are needed for the shadow clock. Which one is NOT needed? (a) a straight stick (b) a sunny open place (c) a clock to check (d) turmeric powder
  18. 18.🔦 Which of these is translucent? (a) air (b) butter paper (c) clear plastic film (d) a brick
  19. 19.🔍 Which is the odd one out? (a) air (b) frosted glass (c) tissue paper (d) butter paper
  20. 20.🔦 Is frosted glass opaque, translucent or transparent? (a) translucent (b) opaque (c) transparent
  21. 21.🧺 Do we need a mirror for the shadow clock? (a) not needed (b) needed
  22. 22.🛟 While watching shadows outdoors, what must you never do? (a) sit in the shade (b) look straight at the Sun (c) wear a cap (d) mark with chalk
  23. 23.🧺 Three of these are needed for the shadow clock. Which one is NOT needed? (a) a sunny open place (b) chalk to mark shadows (c) yeast (d) a clock to check
  24. 24.⚖️ 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) True (b) False
  25. 25.True or false: air is transparent. (a) False (b) True
  26. 26.True or false: air is translucent. (a) False (b) True
  27. 27.🔦 Is oily paper opaque, translucent or transparent? (a) transparent (b) translucent (c) opaque
  28. 28.🧺 Do we need a battery cell for the shadow clock? (a) needed (b) not needed
  29. 29.True or false: a sunny open place is not needed for the shadow clock. (a) True (b) False
  30. 30.⚖️ 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
  31. 31.🧺 Which of these is needed for the shadow clock? (a) yeast (b) a battery cell (c) a magnet (d) a straight stick
  32. 32.⚖️ 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) False (b) True
  33. 33.🧺 Do we need yeast for the shadow clock? (a) needed (b) not needed
  34. 34.🌅 In the morning the Sun is in the east. Which way does a shadow point? (a) west (b) north (c) up (d) east
  35. 35.🔍 Which is the odd one out? (a) a wooden board (b) clear glass (c) clear plastic film (d) clean water
  36. 36.🧺 Do we need a balloon for the shadow clock? (a) needed (b) not needed
  37. 37.🧺 Do we need a magnet for the shadow clock? (a) needed (b) not needed
  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 same spot
  39. 39.🔦 Is a brick opaque, translucent or transparent? (a) translucent (b) opaque (c) transparent
  40. 40.🔮 Predict: on a fully cloudy day, the sundial ___. (a) shows two times (b) runs faster (c) does not work well (d) works better

Answer key

  1. a mirror
  2. the time of day
  3. we change it
  4. a sunny open place
  5. a battery cell
  6. False
  7. yeast
  8. needed
  9. bigger
  10. True
  11. True
  12. a brick
  13. a mirror
  14. we keep it the same
  15. long
  16. Earth keeps spinning
  17. turmeric powder
  18. butter paper
  19. air
  20. translucent
  21. not needed
  22. look straight at the Sun
  23. yeast
  24. False
  25. True
  26. False
  27. translucent
  28. not needed
  29. False
  30. True
  31. a straight stick
  32. False
  33. not needed
  34. west
  35. a wooden board
  36. not needed
  37. not needed
  38. the same spot
  39. opaque
  40. does not work well

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