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Shadow and Sundial Experiment Worksheet

Science experiments lesson 27: Shadows and a sundial · Set 956 · 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 turmeric powder for the shadow clock? (a) needed (b) not needed
  2. 2.True or false: a battery cell is needed for the shadow clock. (a) False (b) True
  3. 3.🧺 Do we need a straight stick for the shadow clock? (a) needed (b) not needed
  4. 4.True or false: a sunny open place 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? What do we do with “the stick kept upright”? (a) we measure it (b) we change it (c) we keep it the same
  6. 6.⚖️ Fair test — how does the shadow of a stick change through the day? Which of these is what we measure? (a) the same spot (b) the time of day (c) shadow length (d) the stick kept upright
  7. 7.🔍 Which is the odd one out? (a) your hand (b) oily paper (c) tissue paper (d) butter paper
  8. 8.True or false: turmeric powder is not needed for the shadow clock. (a) True (b) False
  9. 9.🧺 Which of these is needed for the shadow clock? (a) a magnet (b) a mirror (c) a clock to check (d) yeast
  10. 10.🛟 While watching shadows outdoors, what must you never do? (a) wear a cap (b) look straight at the Sun (c) mark with chalk (d) sit in the shade
  11. 11.🔮 Predict: on a fully cloudy day, the sundial ___. (a) does not work well (b) shows two times (c) works better (d) runs faster
  12. 12.True or false: a book is opaque. (a) True (b) False
  13. 13.⚖️ Fair test — how does the shadow of a stick change through the day? True or false: shadow length is what we measure. (a) False (b) True
  14. 14.🔦 Is frosted glass opaque, translucent or transparent? (a) transparent (b) opaque (c) translucent
  15. 15.⚖️ Fair test — how does the shadow of a stick change through the day? Which of these is kept the same? (a) the same stick (b) the time of day (c) shadow length
  16. 16.🔦 Which of these is translucent? (a) your hand (b) oily paper (c) a wooden board (d) a book
  17. 17.🧺 Which of these is not needed for the shadow clock? (a) a sunny open place (b) a magnet (c) a straight stick (d) chalk to mark shadows
  18. 18.🔍 Which is the odd one out? (a) butter paper (b) tissue paper (c) frosted glass (d) a book
  19. 19.⚖️ 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) False (b) True
  20. 20.🧺 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 battery cell (d) a straight stick
  21. 21.True or false: a straight stick is needed for the shadow clock. (a) False (b) True
  22. 22.🔍 Which is the odd one out? (a) air (b) a steel plate (c) a book (d) a wooden board
  23. 23.True or false: yeast is not needed for the shadow clock. (a) False (b) True
  24. 24.🔦 Is a wooden board opaque, translucent or transparent? (a) translucent (b) opaque (c) transparent
  25. 25.🧺 Three of these are needed for the shadow clock. Which one is NOT needed? (a) a sunny open place (b) yeast (c) a clock to check (d) chalk to mark shadows
  26. 26.🔦 Is a steel plate opaque, translucent or transparent? (a) opaque (b) translucent (c) transparent
  27. 27.🌞 When is a stick’s shadow the shortest? (a) late evening (b) around noon (c) early morning (d) at night
  28. 28.🧺 Do we need a balloon for the shadow clock? (a) needed (b) not needed
  29. 29.🧺 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 magnet (d) chalk to mark shadows
  30. 30.🧺 Do we need chalk to mark shadows for the shadow clock? (a) not needed (b) needed
  31. 31.⚖️ 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) False (b) True
  32. 32.⚖️ Fair test — how does the shadow of a stick change through the day? True or false: the same stick is kept the same. (a) True (b) False
  33. 33.🔮 Predict: the Sun is low in the evening sky. The stick’s shadow is ___. (a) long (b) missing (c) short (d) round
  34. 34.⚖️ Fair test — how does the shadow of a stick change through the day? What do we do with “the same spot”? (a) we measure it (b) we keep it the same (c) we change it
  35. 35.🔦 Is tissue paper opaque, translucent or transparent? (a) translucent (b) opaque (c) transparent
  36. 36.🔦 Which of these is transparent? (a) a wooden board (b) clear plastic film (c) butter paper (d) tissue paper
  37. 37.🔮 Predict: you move a torch closer to your hand. The shadow on the wall gets ___. (a) brighter (b) smaller (c) coloured (d) bigger
  38. 38.⚖️ 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
  39. 39.True or false: a clock to check is not needed for the shadow clock. (a) False (b) True
  40. 40.True or false: oily paper is transparent. (a) True (b) False

Answer key

  1. not needed
  2. False
  3. needed
  4. False
  5. we keep it the same
  6. shadow length
  7. your hand
  8. True
  9. a clock to check
  10. look straight at the Sun
  11. does not work well
  12. True
  13. True
  14. translucent
  15. the same stick
  16. oily paper
  17. a magnet
  18. a book
  19. False
  20. a battery cell
  21. True
  22. air
  23. True
  24. opaque
  25. yeast
  26. opaque
  27. around noon
  28. not needed
  29. a magnet
  30. needed
  31. True
  32. True
  33. long
  34. we keep it the same
  35. translucent
  36. clear plastic film
  37. bigger
  38. we measure it
  39. False
  40. False

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