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Shadow and Sundial Experiment Worksheet

Science experiments lesson 27: Shadows and a sundial · Set 726 · 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.🌅 In the morning the Sun is in the east. Which way does a shadow point? (a) west (b) east (c) north (d) up
  2. 2.True or false: a brick is opaque. (a) False (b) True
  3. 3.⚖️ Fair test — how does the shadow of a stick change through the day? True or false: the same spot is what we measure. (a) True (b) False
  4. 4.🛟 While watching shadows outdoors, what must you never do? (a) sit in the shade (b) look straight at the Sun (c) mark with chalk (d) wear a cap
  5. 5.⚖️ Fair test — how does the shadow of a stick change through the day? Which of these is what we measure? (a) the time of day (b) shadow length (c) the same stick (d) the stick kept upright
  6. 6.🔍 Which is the odd one out? (a) your hand (b) a brick (c) butter paper (d) a steel plate
  7. 7.True or false: your hand is translucent. (a) False (b) True
  8. 8.True or false: a battery cell is needed for the shadow clock. (a) True (b) False
  9. 9.True or false: clear glass is opaque. (a) True (b) False
  10. 10.🧺 Do we need a sunny open place for the shadow clock? (a) not needed (b) needed
  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 measure it (c) we keep it the same
  12. 12.True or false: a mirror is needed for the shadow clock. (a) True (b) False
  13. 13.⚖️ 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
  14. 14.🔦 Which of these is translucent? (a) oily paper (b) clean water (c) clear plastic film (d) air
  15. 15.⚖️ 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
  16. 16.⚖️ Fair test — how does the shadow of a stick change through the day? True or false: the same spot is kept the same. (a) False (b) True
  17. 17.🔦 Which of these is transparent? (a) clear plastic film (b) tissue paper (c) oily paper (d) your hand
  18. 18.True or false: a balloon is not needed for the shadow clock. (a) True (b) False
  19. 19.🔮 Predict: the Sun is low in the evening sky. The stick’s shadow is ___. (a) round (b) long (c) short (d) missing
  20. 20.🔦 Is clean water opaque, translucent or transparent? (a) opaque (b) transparent (c) translucent
  21. 21.🔦 Is tissue paper opaque, translucent or transparent? (a) opaque (b) transparent (c) translucent
  22. 22.🔦 Is butter paper opaque, translucent or transparent? (a) transparent (b) translucent (c) opaque
  23. 23.True or false: a clock to check is needed for the shadow clock. (a) True (b) False
  24. 24.🧺 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
  25. 25.🧺 Do we need a mirror for the shadow clock? (a) needed (b) not needed
  26. 26.🔮 Predict: you move a torch closer to your hand. The shadow on the wall gets ___. (a) bigger (b) smaller (c) coloured (d) brighter
  27. 27.🧺 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) chalk to mark shadows (d) a magnet
  28. 28.⚖️ Fair test — how does the shadow of a stick change through the day? True or false: the stick kept upright is kept the same. (a) True (b) False
  29. 29.🔮 Predict: on a fully cloudy day, the sundial ___. (a) works better (b) runs faster (c) does not work well (d) shows two times
  30. 30.🧺 Which of these is needed for the shadow clock? (a) a sunny open place (b) a battery cell (c) yeast (d) a balloon
  31. 31.🌍 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
  32. 32.⚖️ 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 measure it (c) we change it
  33. 33.🧺 Which of these is not needed for the shadow clock? (a) a straight stick (b) a sunny open place (c) yeast (d) a clock to check
  34. 34.🔦 Which of these is transparent? (a) frosted glass (b) a wooden board (c) a book (d) air
  35. 35.True or false: yeast is not needed for the shadow clock. (a) False (b) True
  36. 36.🔍 Which is the odd one out? (a) clear plastic film (b) a wooden board (c) clean water (d) air
  37. 37.🔍 Which is the odd one out? (a) a steel plate (b) clear plastic film (c) clean water (d) clear glass
  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) False (b) True
  39. 39.⚖️ Fair test — how does the shadow of a stick change through the day? Which of these is kept the same? (a) the same spot (b) the time of day (c) shadow length
  40. 40.🔦 Is a steel plate opaque, translucent or transparent? (a) opaque (b) transparent (c) translucent

Answer key

  1. west
  2. True
  3. False
  4. look straight at the Sun
  5. shadow length
  6. butter paper
  7. False
  8. False
  9. False
  10. needed
  11. we measure it
  12. False
  13. we keep it the same
  14. oily paper
  15. we keep it the same
  16. True
  17. clear plastic film
  18. True
  19. long
  20. transparent
  21. translucent
  22. translucent
  23. True
  24. a balloon
  25. not needed
  26. bigger
  27. a magnet
  28. True
  29. does not work well
  30. a sunny open place
  31. Earth keeps spinning
  32. we change it
  33. yeast
  34. air
  35. True
  36. a wooden board
  37. a steel plate
  38. False
  39. the same spot
  40. opaque

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