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Shadow and Sundial Experiment Worksheet

Science experiments lesson 27: Shadows and a sundial · Set 746 · 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.⚖️ Fair test — how does the shadow of a stick change through the day? True or false: the same stick is what we measure. (a) False (b) True
  2. 2.🧺 Which of these is not needed for the shadow clock? (a) a clock to check (b) a straight stick (c) a sunny open place (d) a mirror
  3. 3.🛟 While watching shadows outdoors, what must you never do? (a) sit in the shade (b) mark with chalk (c) wear a cap (d) look straight at the Sun
  4. 4.🧺 Three of these are needed for the shadow clock. Which one is NOT needed? (a) a sunny open place (b) a balloon (c) a straight stick (d) chalk to mark shadows
  5. 5.🔦 Which of these is translucent? (a) clean water (b) clear glass (c) butter paper (d) clear plastic film
  6. 6.⚖️ Fair test — how does the shadow of a stick change through the day? True or false: the stick kept upright is what we measure. (a) True (b) False
  7. 7.True or false: a book is translucent. (a) True (b) False
  8. 8.🧺 Three of these are needed for the shadow clock. Which one is NOT needed? (a) chalk to mark shadows (b) a sunny open place (c) turmeric powder (d) a straight stick
  9. 9.🔦 Is air opaque, translucent or transparent? (a) transparent (b) opaque (c) translucent
  10. 10.🔦 Which of these is transparent? (a) butter paper (b) oily paper (c) air (d) a book
  11. 11.🧺 Do we need chalk to mark shadows for the shadow clock? (a) not needed (b) needed
  12. 12.🧺 Which of these is needed for the shadow clock? (a) a mirror (b) a balloon (c) a sunny open place (d) a magnet
  13. 13.⚖️ 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
  14. 14.🔮 Predict: you move a torch closer to your hand. The shadow on the wall gets ___. (a) smaller (b) bigger (c) brighter (d) coloured
  15. 15.🔦 Is tissue paper opaque, translucent or transparent? (a) transparent (b) opaque (c) translucent
  16. 16.🧺 Do we need a straight stick for the shadow clock? (a) needed (b) not needed
  17. 17.True or false: a clock to check is not needed for the shadow clock. (a) False (b) True
  18. 18.🔮 Predict: the Sun is low in the evening sky. The stick’s shadow is ___. (a) round (b) short (c) missing (d) long
  19. 19.⚖️ Fair test — how does the shadow of a stick change through the day? What do we do with “shadow length”? (a) we keep it the same (b) we change it (c) we measure it
  20. 20.True or false: clean water is opaque. (a) False (b) True
  21. 21.🛟 What should you wear for a long time in the hot sun? (a) a cap or hat (b) nothing on your head (c) a raincoat (d) a woollen sweater
  22. 22.🧺 Do we need a magnet for the shadow clock? (a) needed (b) not needed
  23. 23.⚖️ 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
  24. 24.🧺 Which of these is needed for the shadow clock? (a) a mirror (b) a balloon (c) chalk to mark shadows (d) yeast
  25. 25.True or false: chalk to mark shadows is needed for the shadow clock. (a) True (b) False
  26. 26.🧺 Do we need a clock to check for the shadow clock? (a) needed (b) not needed
  27. 27.True or false: a mirror is needed for the shadow clock. (a) False (b) True
  28. 28.🔍 Which is the odd one out? (a) a wooden board (b) your hand (c) a book (d) clean water
  29. 29.🧺 Which of these is needed for the shadow clock? (a) turmeric powder (b) yeast (c) a mirror (d) a clock to check
  30. 30.⚖️ Fair test — how does the shadow of a stick change through the day? What do we do with “the same stick”? (a) we keep it the same (b) we measure it (c) we change it
  31. 31.🔮 Predict: on a fully cloudy day, the sundial ___. (a) works better (b) runs faster (c) does not work well (d) shows two times
  32. 32.🔍 Which is the odd one out? (a) a book (b) a steel plate (c) a brick (d) clear plastic film
  33. 33.True or false: a steel plate is opaque. (a) True (b) False
  34. 34.🔦 Is oily paper opaque, translucent or transparent? (a) opaque (b) transparent (c) translucent
  35. 35.⚖️ Fair test — how does the shadow of a stick change through the day? Which of these is kept the same? (a) shadow length (b) the time of day (c) the same stick
  36. 36.True or false: tissue paper is translucent. (a) True (b) False
  37. 37.🌍 Why does the stick’s shadow move during the day? (a) Earth keeps spinning (b) the stick walks (c) the ground slides (d) the stick grows
  38. 38.🔍 Which is the odd one out? (a) a wooden board (b) tissue paper (c) a brick (d) your hand
  39. 39.True or false: a straight stick is needed for the shadow clock. (a) True (b) False
  40. 40.True or false: your hand is translucent. (a) True (b) False

Answer key

  1. False
  2. a mirror
  3. look straight at the Sun
  4. a balloon
  5. butter paper
  6. False
  7. False
  8. turmeric powder
  9. transparent
  10. air
  11. needed
  12. a sunny open place
  13. we change it
  14. bigger
  15. translucent
  16. needed
  17. False
  18. long
  19. we measure it
  20. False
  21. a cap or hat
  22. not needed
  23. False
  24. chalk to mark shadows
  25. True
  26. needed
  27. False
  28. clean water
  29. a clock to check
  30. we keep it the same
  31. does not work well
  32. clear plastic film
  33. True
  34. translucent
  35. the same stick
  36. True
  37. Earth keeps spinning
  38. tissue paper
  39. True
  40. False

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