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Shadow and Sundial Experiment Worksheet

Science experiments lesson 27: Shadows and a sundial · Set 540 · 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 stick kept upright is kept the same. (a) True (b) False
  2. 2.True or false: chalk to mark shadows is needed for the shadow clock. (a) True (b) False
  3. 3.True or false: yeast is needed for the shadow clock. (a) True (b) False
  4. 4.True or false: clean water is opaque. (a) False (b) True
  5. 5.🔦 Which of these is transparent? (a) your hand (b) a wooden board (c) clear glass (d) butter paper
  6. 6.⚖️ Fair test — how does the shadow of a stick change through the day? Which of these is what we measure? (a) shadow length (b) the same spot (c) the stick kept upright (d) the same stick
  7. 7.🌍 Why does the stick’s shadow move during the day? (a) the stick walks (b) the stick grows (c) Earth keeps spinning (d) the ground slides
  8. 8.⚖️ Fair test — how does the shadow of a stick change through the day? What do we do with “the same stick”? (a) we change it (b) we measure it (c) we keep it the same
  9. 9.🔍 Which is the odd one out? (a) your hand (b) a steel plate (c) air (d) a brick
  10. 10.True or false: your hand is opaque. (a) False (b) True
  11. 11.True or false: a book is transparent. (a) False (b) True
  12. 12.⚖️ 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) shadow length (c) the time of day (d) the stick kept upright
  13. 13.🔦 Which of these is translucent? (a) a book (b) oily paper (c) air (d) clear glass
  14. 14.⚖️ 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 stick kept upright (c) the time of day
  15. 15.🔮 Predict: on a fully cloudy day, the sundial ___. (a) shows two times (b) works better (c) runs faster (d) does not work well
  16. 16.🧺 Which of these is needed for the shadow clock? (a) a magnet (b) a battery cell (c) a straight stick (d) a balloon
  17. 17.🔦 Which of these is transparent? (a) frosted glass (b) oily paper (c) your hand (d) air
  18. 18.🔦 Is a book opaque, translucent or transparent? (a) translucent (b) transparent (c) opaque
  19. 19.🔍 Which is the odd one out? (a) a book (b) a wooden board (c) a steel plate (d) butter paper
  20. 20.🧺 Do we need a clock to check for the shadow clock? (a) not needed (b) needed
  21. 21.True or false: clear glass is opaque. (a) True (b) False
  22. 22.🔍 Which is the odd one out? (a) your hand (b) frosted glass (c) tissue paper (d) oily paper
  23. 23.🧺 Do we need a straight stick for the shadow clock? (a) needed (b) not needed
  24. 24.🌞 When is a stick’s shadow the shortest? (a) late evening (b) early morning (c) around noon (d) at night
  25. 25.🌅 In the morning the Sun is in the east. Which way does a shadow point? (a) north (b) east (c) up (d) west
  26. 26.True or false: a balloon is not needed for the shadow clock. (a) True (b) False
  27. 27.⚖️ 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
  28. 28.🛟 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
  29. 29.🔦 Which of these is opaque? (a) a wooden board (b) clear plastic film (c) air (d) butter paper
  30. 30.🧺 Which of these is needed for the shadow clock? (a) a balloon (b) turmeric powder (c) a mirror (d) a clock to check
  31. 31.🧺 Three of these are needed for the shadow clock. Which one is NOT needed? (a) turmeric powder (b) chalk to mark shadows (c) a clock to check (d) a straight stick
  32. 32.True or false: a magnet is needed for the shadow clock. (a) False (b) True
  33. 33.🧺 Which of these is not needed for the shadow clock? (a) a magnet (b) chalk to mark shadows (c) a sunny open place (d) a clock to check
  34. 34.🔦 Is clear glass opaque, translucent or transparent? (a) translucent (b) transparent (c) opaque
  35. 35.🧺 Do we need a mirror for the shadow clock? (a) not needed (b) needed
  36. 36.True or false: your hand is translucent. (a) False (b) True
  37. 37.🔮 Predict: you move a torch closer to your hand. The shadow on the wall gets ___. (a) bigger (b) brighter (c) smaller (d) coloured
  38. 38.True or false: tissue paper is opaque. (a) False (b) True
  39. 39.🔦 Which of these is translucent? (a) air (b) a brick (c) clean water (d) tissue paper
  40. 40.🔦 Is a steel plate opaque, translucent or transparent? (a) transparent (b) opaque (c) translucent

Answer key

  1. True
  2. True
  3. False
  4. False
  5. clear glass
  6. shadow length
  7. Earth keeps spinning
  8. we keep it the same
  9. air
  10. True
  11. False
  12. the time of day
  13. oily paper
  14. the stick kept upright
  15. does not work well
  16. a straight stick
  17. air
  18. opaque
  19. butter paper
  20. needed
  21. False
  22. your hand
  23. needed
  24. around noon
  25. west
  26. True
  27. False
  28. look straight at the Sun
  29. a wooden board
  30. a clock to check
  31. turmeric powder
  32. False
  33. a magnet
  34. transparent
  35. not needed
  36. False
  37. bigger
  38. False
  39. tissue paper
  40. opaque

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