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Shadow and Sundial Experiment Worksheet

Science experiments lesson 27: Shadows and a sundial · Set 985 · 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.🧺 Do we need a mirror for the shadow clock? (a) not needed (b) needed
  2. 2.🧺 Three of these are needed for the shadow clock. Which one is NOT needed? (a) chalk to mark shadows (b) a straight stick (c) a mirror (d) a clock to check
  3. 3.⚖️ 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
  4. 4.True or false: a mirror is not needed for the shadow clock. (a) True (b) False
  5. 5.⚖️ Fair test — how does the shadow of a stick change through the day? True or false: shadow length is what we measure. (a) True (b) False
  6. 6.🔮 Predict: on a fully cloudy day, the sundial ___. (a) runs faster (b) shows two times (c) does not work well (d) works better
  7. 7.🧺 Which of these is not needed for the shadow clock? (a) a clock to check (b) turmeric powder (c) a sunny open place (d) chalk to mark shadows
  8. 8.🧺 Which of these is not needed for the shadow clock? (a) a sunny open place (b) a mirror (c) a clock to check (d) chalk to mark shadows
  9. 9.🔦 Is tissue paper opaque, translucent or transparent? (a) translucent (b) transparent (c) opaque
  10. 10.🔦 Which of these is translucent? (a) your hand (b) a steel plate (c) tissue paper (d) clear plastic film
  11. 11.⚖️ 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
  12. 12.🧺 Which of these is needed for the shadow clock? (a) a sunny open place (b) a mirror (c) a battery cell (d) a balloon
  13. 13.True or false: a balloon is not needed for the shadow clock. (a) True (b) False
  14. 14.True or false: a steel plate is opaque. (a) False (b) True
  15. 15.True or false: a magnet is needed for the shadow clock. (a) False (b) True
  16. 16.🌞 When is a stick’s shadow the shortest? (a) early morning (b) late evening (c) at night (d) around noon
  17. 17.True or false: clean water is transparent. (a) False (b) True
  18. 18.🧺 Do we need chalk to mark shadows for the shadow clock? (a) needed (b) not needed
  19. 19.🧺 Three of these are needed for the shadow clock. Which one is NOT needed? (a) a straight stick (b) a battery cell (c) a clock to check (d) a sunny open place
  20. 20.🧺 Do we need a clock to check for the shadow clock? (a) needed (b) not needed
  21. 21.🔦 Which of these is transparent? (a) a wooden board (b) frosted glass (c) a brick (d) clear glass
  22. 22.True or false: a clock to check is not needed for the shadow clock. (a) True (b) False
  23. 23.True or false: chalk to mark shadows is needed for the shadow clock. (a) False (b) True
  24. 24.🧺 Do we need turmeric powder for the shadow clock? (a) needed (b) not needed
  25. 25.True or false: butter paper is translucent. (a) False (b) True
  26. 26.⚖️ 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 change it (c) we keep it the same
  27. 27.⚖️ Fair test — how does the shadow of a stick change through the day? What do we do with “the same spot”? (a) we change it (b) we measure it (c) we keep it the same
  28. 28.🔮 Predict: you move a torch closer to your hand. The shadow on the wall gets ___. (a) brighter (b) smaller (c) coloured (d) bigger
  29. 29.⚖️ Fair test — how does the shadow of a stick change through the day? What do we do with “shadow length”? (a) we measure it (b) we change it (c) we keep it the same
  30. 30.🔍 Which is the odd one out? (a) a brick (b) oily paper (c) a book (d) your hand
  31. 31.🔮 Predict: the Sun is low in the evening sky. The stick’s shadow is ___. (a) round (b) short (c) missing (d) long
  32. 32.🔦 Which of these is translucent? (a) clean water (b) a wooden board (c) a brick (d) oily paper
  33. 33.🔦 Which of these is opaque? (a) oily paper (b) air (c) a brick (d) butter paper
  34. 34.True or false: your hand is transparent. (a) False (b) True
  35. 35.🛟 While watching shadows outdoors, what must you never do? (a) mark with chalk (b) sit in the shade (c) wear a cap (d) look straight at the Sun
  36. 36.True or false: a book is transparent. (a) False (b) True
  37. 37.🔦 Is a steel plate opaque, translucent or transparent? (a) opaque (b) transparent (c) translucent
  38. 38.🔦 Which of these is opaque? (a) air (b) a wooden board (c) oily paper (d) tissue paper
  39. 39.⚖️ Fair test — how does the shadow of a stick change through the day? True or false: shadow length is the one thing we change. (a) True (b) False
  40. 40.True or false: a sunny open place is not needed for the shadow clock. (a) True (b) False

Answer key

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

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