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Shadow and Sundial Experiment Worksheet

Science experiments lesson 27: Shadows and a sundial · Set 747 · 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 butter paper opaque, translucent or transparent? (a) transparent (b) opaque (c) translucent
  2. 2.⚖️ 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 stick (b) shadow length (c) the time of day (d) the same spot
  3. 3.🔦 Which of these is translucent? (a) a steel plate (b) a wooden board (c) air (d) butter paper
  4. 4.🔮 Predict: on a fully cloudy day, the sundial ___. (a) runs faster (b) shows two times (c) works better (d) does not work well
  5. 5.⚖️ Fair test — how does the shadow of a stick change through the day? What do we do with “the same spot”? (a) we keep it the same (b) we measure it (c) we change it
  6. 6.True or false: a balloon is not needed for the shadow clock. (a) True (b) False
  7. 7.🧺 Which of these is needed for the shadow clock? (a) a magnet (b) a balloon (c) a clock to check (d) turmeric powder
  8. 8.🧺 Which of these is needed for the shadow clock? (a) a magnet (b) a balloon (c) a battery cell (d) a sunny open place
  9. 9.🧺 Three of these are needed for the shadow clock. Which one is NOT needed? (a) a straight stick (b) a sunny open place (c) yeast (d) chalk to mark shadows
  10. 10.🧺 Do we need a clock to check for the shadow clock? (a) not needed (b) needed
  11. 11.⚖️ Fair test — how does the shadow of a stick change through the day? Which of these is kept the same? (a) the time of day (b) shadow length (c) the same stick
  12. 12.🔍 Which is the odd one out? (a) a wooden board (b) a steel plate (c) your hand (d) clear plastic film
  13. 13.🧺 Do we need a magnet for the shadow clock? (a) needed (b) not needed
  14. 14.True or false: frosted glass is opaque. (a) False (b) True
  15. 15.True or false: chalk to mark shadows is needed for the shadow clock. (a) False (b) True
  16. 16.🛟 While watching shadows outdoors, what must you never do? (a) wear a cap (b) look straight at the Sun (c) sit in the shade (d) mark with chalk
  17. 17.🧺 Do we need a straight stick for the shadow clock? (a) needed (b) not needed
  18. 18.🕰️ What is a sundial used for? (a) telling the time (b) making rainbows (c) weighing things (d) measuring rain
  19. 19.True or false: yeast is needed for the shadow clock. (a) True (b) False
  20. 20.⚖️ 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 change it (c) we measure it
  21. 21.🧺 Three of these are needed for the shadow clock. Which one is NOT needed? (a) a mirror (b) a straight stick (c) a clock to check (d) a sunny open place
  22. 22.🔦 Which of these is transparent? (a) tissue paper (b) your hand (c) butter paper (d) clean water
  23. 23.🔦 Is clean water opaque, translucent or transparent? (a) translucent (b) opaque (c) transparent
  24. 24.True or false: clear glass is transparent. (a) False (b) True
  25. 25.True or false: a clock to check is not needed for the shadow clock. (a) True (b) False
  26. 26.🧺 Do we need a sunny open place for the shadow clock? (a) needed (b) not needed
  27. 27.🔮 Predict: the Sun is low in the evening sky. The stick’s shadow is ___. (a) long (b) round (c) short (d) missing
  28. 28.🔮 Predict: you move a torch closer to your hand. The shadow on the wall gets ___. (a) coloured (b) brighter (c) bigger (d) smaller
  29. 29.🧺 Which of these is not needed for the shadow clock? (a) a clock to check (b) turmeric powder (c) a straight stick (d) chalk to mark shadows
  30. 30.🧺 Do we need a mirror for the shadow clock? (a) needed (b) not needed
  31. 31.🔍 Which is the odd one out? (a) a wooden board (b) clear plastic film (c) clear glass (d) air
  32. 32.⚖️ 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
  33. 33.🧺 Which of these is not needed for the shadow clock? (a) a straight stick (b) chalk to mark shadows (c) a magnet (d) a clock to check
  34. 34.True or false: a balloon is needed for the shadow clock. (a) True (b) False
  35. 35.🌅 In the morning the Sun is in the east. Which way does a shadow point? (a) north (b) east (c) west (d) up
  36. 36.🔦 Which of these is opaque? (a) clean water (b) oily paper (c) your hand (d) clear plastic film
  37. 37.🔦 Which of these is transparent? (a) clear plastic film (b) a steel plate (c) frosted glass (d) oily paper
  38. 38.⚖️ Fair test — how does the shadow of a stick change through the day? Which of these is kept the same? (a) the same spot (b) the time of day (c) shadow length
  39. 39.⚖️ 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) the time of day (c) shadow length (d) the stick kept upright
  40. 40.🌞 When is a stick’s shadow the shortest? (a) at night (b) late evening (c) around noon (d) early morning

Answer key

  1. translucent
  2. the time of day
  3. butter paper
  4. does not work well
  5. we keep it the same
  6. True
  7. a clock to check
  8. a sunny open place
  9. yeast
  10. needed
  11. the same stick
  12. clear plastic film
  13. not needed
  14. False
  15. True
  16. look straight at the Sun
  17. needed
  18. telling the time
  19. False
  20. we keep it the same
  21. a mirror
  22. clean water
  23. transparent
  24. True
  25. False
  26. needed
  27. long
  28. bigger
  29. turmeric powder
  30. not needed
  31. a wooden board
  32. True
  33. a magnet
  34. False
  35. west
  36. your hand
  37. clear plastic film
  38. the same spot
  39. shadow length
  40. around noon

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