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Shadow and Sundial Experiment Worksheet

Science experiments lesson 27: Shadows and a sundial · Set 736 · 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: a battery cell is not needed for the shadow clock. (a) False (b) True
  2. 2.⚖️ 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
  3. 3.⚖️ 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 measure it (c) we change it
  4. 4.True or false: tissue paper is transparent. (a) True (b) False
  5. 5.🔮 Predict: you move a torch closer to your hand. The shadow on the wall gets ___. (a) brighter (b) coloured (c) bigger (d) smaller
  6. 6.⚖️ 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
  7. 7.True or false: a balloon is needed for the shadow clock. (a) False (b) True
  8. 8.🧺 Do we need chalk to mark shadows for the shadow clock? (a) needed (b) not needed
  9. 9.True or false: a mirror is needed for the shadow clock. (a) True (b) False
  10. 10.🔦 Is oily paper opaque, translucent or transparent? (a) translucent (b) opaque (c) transparent
  11. 11.🧺 Do we need yeast for the shadow clock? (a) needed (b) not needed
  12. 12.⚖️ 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) the same stick (c) shadow length
  13. 13.🧺 Which of these is not needed for the shadow clock? (a) chalk to mark shadows (b) a sunny open place (c) a mirror (d) a clock to check
  14. 14.🕰️ What is a sundial used for? (a) weighing things (b) measuring rain (c) making rainbows (d) telling the time
  15. 15.⚖️ 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 change it (c) we measure it
  16. 16.True or false: a balloon is not needed for the shadow clock. (a) True (b) False
  17. 17.🧺 Three of these are needed for the shadow clock. Which one is NOT needed? (a) chalk to mark shadows (b) a balloon (c) a straight stick (d) a clock to check
  18. 18.🧺 Which of these is needed for the shadow clock? (a) a magnet (b) a straight stick (c) turmeric powder (d) a balloon
  19. 19.True or false: a magnet is not needed for the shadow clock. (a) True (b) False
  20. 20.🔮 Predict: on a fully cloudy day, the sundial ___. (a) works better (b) shows two times (c) does not work well (d) runs faster
  21. 21.🌅 In the morning the Sun is in the east. Which way does a shadow point? (a) up (b) west (c) north (d) east
  22. 22.True or false: clean water is opaque. (a) False (b) True
  23. 23.🔦 Is a steel plate opaque, translucent or transparent? (a) opaque (b) translucent (c) transparent
  24. 24.⚖️ Fair test — how does the shadow of a stick change through the day? What do we do with “the time of day”? (a) we measure it (b) we keep it the same (c) we change it
  25. 25.⚖️ Fair test — how does the shadow of a stick change through the day? Which of these is the one thing we change? (a) the same spot (b) the time of day (c) shadow length (d) the same stick
  26. 26.🌞 When is a stick’s shadow the shortest? (a) at night (b) late evening (c) around noon (d) early morning
  27. 27.🧺 Do we need a mirror for the shadow clock? (a) needed (b) not needed
  28. 28.🔍 Which is the odd one out? (a) clear glass (b) clean water (c) clear plastic film (d) tissue paper
  29. 29.🧺 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) yeast (d) chalk to mark shadows
  30. 30.⚖️ 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 spot (d) the same stick
  31. 31.🧺 Do we need turmeric powder for the shadow clock? (a) not needed (b) needed
  32. 32.True or false: frosted glass is opaque. (a) False (b) True
  33. 33.🧺 Which of these is needed for the shadow clock? (a) a magnet (b) yeast (c) a clock to check (d) turmeric powder
  34. 34.🔮 Predict: the Sun is low in the evening sky. The stick’s shadow is ___. (a) round (b) short (c) long (d) missing
  35. 35.⚖️ 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 keep it the same (c) we change it
  36. 36.True or false: a brick is opaque. (a) False (b) True
  37. 37.🧺 Which of these is needed for the shadow clock? (a) a magnet (b) chalk to mark shadows (c) a mirror (d) a balloon
  38. 38.⚖️ 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) True (b) False
  39. 39.🔦 Which of these is transparent? (a) a steel plate (b) tissue paper (c) a brick (d) air
  40. 40.True or false: your hand is transparent. (a) True (b) False

Answer key

  1. True
  2. False
  3. we keep it the same
  4. False
  5. bigger
  6. we measure it
  7. False
  8. needed
  9. False
  10. translucent
  11. not needed
  12. the same stick
  13. a mirror
  14. telling the time
  15. we keep it the same
  16. True
  17. a balloon
  18. a straight stick
  19. True
  20. does not work well
  21. west
  22. False
  23. opaque
  24. we change it
  25. the time of day
  26. around noon
  27. not needed
  28. tissue paper
  29. yeast
  30. shadow length
  31. not needed
  32. False
  33. a clock to check
  34. long
  35. we keep it the same
  36. True
  37. chalk to mark shadows
  38. False
  39. air
  40. False

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