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Shadow and Sundial Experiment Worksheet

Science experiments lesson 27: Shadows and a sundial · Set 17 · 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.🌅 In the morning the Sun is in the east. Which way does a shadow point? (a) west (b) up (c) east (d) north
  2. 2.⚖️ Fair test — how does the shadow of a stick change through the day? True or false: the same stick is kept the same. (a) False (b) True
  3. 3.True or false: a battery cell is needed for the shadow clock. (a) False (b) True
  4. 4.True or false: a book is translucent. (a) True (b) False
  5. 5.True or false: oily paper is translucent. (a) False (b) True
  6. 6.🔦 Is a steel plate opaque, translucent or transparent? (a) transparent (b) translucent (c) opaque
  7. 7.🧺 Do we need a mirror for the shadow clock? (a) not needed (b) needed
  8. 8.🔦 Is a brick opaque, translucent or transparent? (a) translucent (b) transparent (c) opaque
  9. 9.True or false: a magnet is needed for the shadow clock. (a) False (b) True
  10. 10.🧺 Do we need a straight stick for the shadow clock? (a) not needed (b) needed
  11. 11.🌍 Why does the stick’s shadow move during the day? (a) the ground slides (b) the stick grows (c) Earth keeps spinning (d) the stick walks
  12. 12.🧺 Which of these is needed for the shadow clock? (a) a magnet (b) a sunny open place (c) yeast (d) turmeric powder
  13. 13.True or false: yeast is not needed for the shadow clock. (a) True (b) False
  14. 14.🔦 Which of these is opaque? (a) frosted glass (b) clear plastic film (c) tissue paper (d) your hand
  15. 15.🧺 Do we need chalk to mark shadows for the shadow clock? (a) needed (b) not needed
  16. 16.🕰️ What is a sundial used for? (a) weighing things (b) measuring rain (c) making rainbows (d) telling the time
  17. 17.🔦 Which of these is transparent? (a) a book (b) butter paper (c) a wooden board (d) air
  18. 18.🛟 While watching shadows outdoors, what must you never do? (a) wear a cap (b) mark with chalk (c) look straight at the Sun (d) sit in the shade
  19. 19.🔦 Which of these is translucent? (a) your hand (b) a steel plate (c) air (d) frosted glass
  20. 20.🧺 Which of these is needed for the shadow clock? (a) a mirror (b) a magnet (c) turmeric powder (d) a straight stick
  21. 21.🧺 Three of these are needed for the shadow clock. Which one is NOT needed? (a) a clock to check (b) a magnet (c) chalk to mark shadows (d) a sunny open place
  22. 22.🔮 Predict: you move a torch closer to your hand. The shadow on the wall gets ___. (a) brighter (b) smaller (c) coloured (d) bigger
  23. 23.⚖️ 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
  24. 24.True or false: a clock to check is not needed for the shadow clock. (a) False (b) True
  25. 25.🧺 Three of these are needed for the shadow clock. Which one is NOT needed? (a) a straight stick (b) a sunny open place (c) chalk to mark shadows (d) a mirror
  26. 26.True or false: a wooden board is opaque. (a) True (b) False
  27. 27.⚖️ Fair test — how does the shadow of a stick change through the day? True or false: the same spot is kept the same. (a) False (b) True
  28. 28.🧺 Do we need a magnet for the shadow clock? (a) not needed (b) needed
  29. 29.🧺 Do we need a balloon for the shadow clock? (a) not needed (b) needed
  30. 30.🔦 Is tissue paper opaque, translucent or transparent? (a) transparent (b) translucent (c) opaque
  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.⚖️ 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) shadow length (c) the same stick (d) the time of day
  33. 33.True or false: a sunny open place is not needed for the shadow clock. (a) True (b) False
  34. 34.⚖️ 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 same stick (c) the time of day (d) the stick kept upright
  35. 35.True or false: yeast is needed for the shadow clock. (a) False (b) True
  36. 36.🌞 When is a stick’s shadow the shortest? (a) at night (b) late evening (c) early morning (d) around noon
  37. 37.🔍 Which is the odd one out? (a) a steel plate (b) air (c) clear plastic film (d) clean water
  38. 38.🧺 Three of these are needed for the shadow clock. Which one is NOT needed? (a) a clock to check (b) a balloon (c) a straight stick (d) chalk to mark shadows
  39. 39.True or false: a sunny open place is needed for the shadow clock. (a) False (b) True
  40. 40.True or false: tissue paper is opaque. (a) True (b) False

Answer key

  1. west
  2. True
  3. False
  4. False
  5. True
  6. opaque
  7. not needed
  8. opaque
  9. False
  10. needed
  11. Earth keeps spinning
  12. a sunny open place
  13. True
  14. your hand
  15. needed
  16. telling the time
  17. air
  18. look straight at the Sun
  19. frosted glass
  20. a straight stick
  21. a magnet
  22. bigger
  23. True
  24. False
  25. a mirror
  26. True
  27. True
  28. not needed
  29. not needed
  30. translucent
  31. does not work well
  32. shadow length
  33. False
  34. the time of day
  35. False
  36. around noon
  37. a steel plate
  38. a balloon
  39. True
  40. False

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