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Shadow and Sundial Experiment Worksheet

Science experiments lesson 27: Shadows and a sundial · Set 919 · 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.🔦 Is a book opaque, translucent or transparent? (a) opaque (b) transparent (c) translucent
  2. 2.🌍 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
  3. 3.True or false: a mirror is needed for the shadow clock. (a) True (b) False
  4. 4.🧺 Which of these is needed for the shadow clock? (a) turmeric powder (b) yeast (c) a battery cell (d) a straight stick
  5. 5.🧺 Which of these is needed for the shadow clock? (a) a magnet (b) yeast (c) chalk to mark shadows (d) a battery cell
  6. 6.⚖️ Fair test — how does the shadow of a stick change through the day? True or false: the time of day is kept the same. (a) False (b) True
  7. 7.🔮 Predict: you move a torch closer to your hand. The shadow on the wall gets ___. (a) bigger (b) coloured (c) brighter (d) smaller
  8. 8.True or false: a sunny open place is not needed for the shadow clock. (a) True (b) False
  9. 9.🧺 Do we need turmeric powder for the shadow clock? (a) not needed (b) needed
  10. 10.True or false: a book is opaque. (a) False (b) True
  11. 11.🕰️ What is a sundial used for? (a) weighing things (b) telling the time (c) making rainbows (d) measuring rain
  12. 12.⚖️ Fair test — how does the shadow of a stick change through the day? Which of these is what we measure? (a) the stick kept upright (b) the time of day (c) shadow length (d) the same stick
  13. 13.True or false: tissue paper is translucent. (a) False (b) True
  14. 14.True or false: a mirror is not needed for the shadow clock. (a) True (b) False
  15. 15.🔮 Predict: the Sun is low in the evening sky. The stick’s shadow is ___. (a) short (b) missing (c) long (d) round
  16. 16.True or false: chalk to mark shadows is not needed for the shadow clock. (a) False (b) True
  17. 17.⚖️ 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
  18. 18.🛟 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
  19. 19.True or false: clear glass is transparent. (a) True (b) False
  20. 20.True or false: a magnet is not needed for the shadow clock. (a) True (b) False
  21. 21.True or false: air is transparent. (a) True (b) False
  22. 22.🔮 Predict: on a fully cloudy day, the sundial ___. (a) runs faster (b) works better (c) shows two times (d) does not work well
  23. 23.⚖️ 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
  24. 24.🔦 Which of these is translucent? (a) your hand (b) clean water (c) oily paper (d) clear glass
  25. 25.⚖️ 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
  26. 26.🛟 What should you wear for a long time in the hot sun? (a) a woollen sweater (b) nothing on your head (c) a raincoat (d) a cap or hat
  27. 27.🔍 Which is the odd one out? (a) clear plastic film (b) tissue paper (c) oily paper (d) frosted glass
  28. 28.🌞 When is a stick’s shadow the shortest? (a) at night (b) late evening (c) early morning (d) around noon
  29. 29.🧺 Three of these are needed for the shadow clock. Which one is NOT needed? (a) a straight stick (b) turmeric powder (c) a sunny open place (d) chalk to mark shadows
  30. 30.🧺 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) a battery cell (d) a clock to check
  31. 31.⚖️ 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 change it (c) we measure it
  32. 32.🧺 Do we need a battery cell for the shadow clock? (a) not needed (b) needed
  33. 33.True or false: a straight stick is needed for the shadow clock. (a) False (b) True
  34. 34.True or false: yeast is not needed for the shadow clock. (a) True (b) False
  35. 35.🧺 Which of these is needed for the shadow clock? (a) a mirror (b) a magnet (c) yeast (d) a sunny open place
  36. 36.True or false: your hand is opaque. (a) True (b) False
  37. 37.🔍 Which is the odd one out? (a) your hand (b) clear glass (c) a steel plate (d) a book
  38. 38.🧺 Three of these are needed for the shadow clock. Which one is NOT needed? (a) a sunny open place (b) a magnet (c) chalk to mark shadows (d) a straight stick
  39. 39.⚖️ 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
  40. 40.True or false: a battery cell is needed for the shadow clock. (a) True (b) False

Answer key

  1. opaque
  2. Earth keeps spinning
  3. False
  4. a straight stick
  5. chalk to mark shadows
  6. False
  7. bigger
  8. False
  9. not needed
  10. True
  11. telling the time
  12. shadow length
  13. True
  14. True
  15. long
  16. False
  17. False
  18. look straight at the Sun
  19. True
  20. True
  21. True
  22. does not work well
  23. True
  24. oily paper
  25. True
  26. a cap or hat
  27. clear plastic film
  28. around noon
  29. turmeric powder
  30. a battery cell
  31. we change it
  32. not needed
  33. True
  34. True
  35. a sunny open place
  36. True
  37. clear glass
  38. a magnet
  39. True
  40. False

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