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Shadow and Sundial Experiment Worksheet

Science experiments lesson 27: Shadows and a sundial · Set 689 · 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.🧺 Which of these is needed for the shadow clock? (a) a mirror (b) a magnet (c) a straight stick (d) yeast
  2. 2.🧺 Do we need a clock to check for the shadow clock? (a) not needed (b) needed
  3. 3.🔦 Which of these is translucent? (a) your hand (b) clean water (c) frosted glass (d) air
  4. 4.True or false: tissue paper is translucent. (a) False (b) True
  5. 5.🔍 Which is the odd one out? (a) a brick (b) oily paper (c) a book (d) your hand
  6. 6.⚖️ 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
  7. 7.True or false: a book is opaque. (a) True (b) False
  8. 8.🔦 Which of these is translucent? (a) your hand (b) tissue paper (c) a brick (d) a steel plate
  9. 9.🔮 Predict: the Sun is low in the evening sky. The stick’s shadow is ___. (a) missing (b) short (c) long (d) round
  10. 10.True or false: a mirror is needed for the shadow clock. (a) False (b) True
  11. 11.⚖️ 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
  12. 12.🧺 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 balloon (d) a straight stick
  13. 13.🔦 Which of these is opaque? (a) frosted glass (b) air (c) clean water (d) a brick
  14. 14.🧺 Do we need a magnet for the shadow clock? (a) needed (b) not needed
  15. 15.🔦 Is tissue paper opaque, translucent or transparent? (a) translucent (b) opaque (c) transparent
  16. 16.🧺 Three of these are needed for the shadow clock. Which one is NOT needed? (a) a mirror (b) chalk to mark shadows (c) a sunny open place (d) a straight stick
  17. 17.🧺 Which of these is needed for the shadow clock? (a) a balloon (b) a mirror (c) a magnet (d) chalk to mark shadows
  18. 18.⚖️ Fair test — how does the shadow of a stick change through the day? Which of these is what we measure? (a) the same stick (b) shadow length (c) the stick kept upright (d) the same spot
  19. 19.🔦 Is a wooden board opaque, translucent or transparent? (a) translucent (b) opaque (c) transparent
  20. 20.🧺 Do we need turmeric powder for the shadow clock? (a) not needed (b) needed
  21. 21.⚖️ Fair test — how does the shadow of a stick change through the day? Which of these is the one thing we change? (a) shadow length (b) the stick kept upright (c) the same stick (d) the time of day
  22. 22.🧺 Which of these is needed for the shadow clock? (a) a clock to check (b) a balloon (c) a magnet (d) a battery cell
  23. 23.🔮 Predict: on a fully cloudy day, the sundial ___. (a) shows two times (b) runs faster (c) works better (d) does not work well
  24. 24.True or false: tissue paper is opaque. (a) False (b) True
  25. 25.⚖️ 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
  26. 26.🛟 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
  27. 27.🧺 Do we need a sunny open place for the shadow clock? (a) needed (b) not needed
  28. 28.⚖️ 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
  29. 29.⚖️ Fair test — how does the shadow of a stick change through the day? True or false: the same stick is the one thing we change. (a) False (b) True
  30. 30.🌍 Why does the stick’s shadow move during the day? (a) the stick grows (b) Earth keeps spinning (c) the stick walks (d) the ground slides
  31. 31.🧺 Do we need yeast for the shadow clock? (a) needed (b) not needed
  32. 32.True or false: turmeric powder is not needed for the shadow clock. (a) True (b) False
  33. 33.True or false: frosted glass is opaque. (a) True (b) False
  34. 34.🧺 Do we need a battery cell for the shadow clock? (a) not needed (b) needed
  35. 35.⚖️ 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
  36. 36.🔮 Predict: you move a torch closer to your hand. The shadow on the wall gets ___. (a) coloured (b) brighter (c) bigger (d) smaller
  37. 37.🛟 What should you wear for a long time in the hot sun? (a) a raincoat (b) nothing on your head (c) a cap or hat (d) a woollen sweater
  38. 38.🔍 Which is the odd one out? (a) a wooden board (b) frosted glass (c) your hand (d) a steel plate
  39. 39.🧺 Three of these are needed for the shadow clock. Which one is NOT needed? (a) chalk to mark shadows (b) a battery cell (c) a straight stick (d) a sunny open place
  40. 40.⚖️ 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) False (b) True

Answer key

  1. a straight stick
  2. needed
  3. frosted glass
  4. True
  5. oily paper
  6. False
  7. True
  8. tissue paper
  9. long
  10. False
  11. True
  12. a balloon
  13. a brick
  14. not needed
  15. translucent
  16. a mirror
  17. chalk to mark shadows
  18. shadow length
  19. opaque
  20. not needed
  21. the time of day
  22. a clock to check
  23. does not work well
  24. False
  25. False
  26. look straight at the Sun
  27. needed
  28. we change it
  29. False
  30. Earth keeps spinning
  31. not needed
  32. True
  33. False
  34. not needed
  35. the same stick
  36. bigger
  37. a cap or hat
  38. frosted glass
  39. a battery cell
  40. False

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