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Shadow and Sundial Experiment Worksheet

Science experiments lesson 27: Shadows and a sundial · Set 263 · 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.True or false: clear glass is transparent. (a) False (b) True
  2. 2.True or false: clear plastic film is transparent. (a) True (b) False
  3. 3.True or false: a sunny open place is not needed for the shadow clock. (a) False (b) True
  4. 4.🌞 When is a stick’s shadow the shortest? (a) around noon (b) early morning (c) late evening (d) at night
  5. 5.🧺 Do we need a sunny open place for the shadow clock? (a) not needed (b) needed
  6. 6.🛟 While watching shadows outdoors, what must you never do? (a) mark with chalk (b) look straight at the Sun (c) wear a cap (d) sit in the shade
  7. 7.True or false: tissue paper is opaque. (a) False (b) True
  8. 8.🧺 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 magnet (d) a straight stick
  9. 9.🔍 Which is the odd one out? (a) air (b) clear glass (c) clean water (d) a book
  10. 10.🧺 Which of these is not needed for the shadow clock? (a) a sunny open place (b) a straight stick (c) a clock to check (d) a mirror
  11. 11.True or false: oily paper is translucent. (a) True (b) False
  12. 12.⚖️ Fair test — how does the shadow of a stick change through the day? True or false: the same spot is kept the same. (a) True (b) False
  13. 13.🧺 Which of these is needed for the shadow clock? (a) a straight stick (b) a mirror (c) a magnet (d) turmeric powder
  14. 14.🧺 Do we need yeast for the shadow clock? (a) needed (b) not needed
  15. 15.True or false: a straight stick is needed for the shadow clock. (a) False (b) True
  16. 16.True or false: a clock to check 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 time of day is the one thing we change. (a) False (b) True
  18. 18.True or false: a mirror is not needed for the shadow clock. (a) False (b) True
  19. 19.🧺 Which of these is needed for the shadow clock? (a) a clock to check (b) a balloon (c) a battery cell (d) turmeric powder
  20. 20.True or false: a battery cell is not needed for the shadow clock. (a) False (b) True
  21. 21.🔮 Predict: on a fully cloudy day, the sundial ___. (a) works better (b) shows two times (c) does not work well (d) runs faster
  22. 22.True or false: chalk to mark shadows is not needed for the shadow clock. (a) True (b) False
  23. 23.⚖️ 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 stick kept upright (d) the time of day
  24. 24.🔦 Is frosted glass opaque, translucent or transparent? (a) opaque (b) transparent (c) translucent
  25. 25.🔦 Which of these is opaque? (a) frosted glass (b) clean water (c) a wooden board (d) clear glass
  26. 26.🔦 Is a steel plate opaque, translucent or transparent? (a) transparent (b) translucent (c) opaque
  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.🔦 Which of these is opaque? (a) a steel plate (b) frosted glass (c) butter paper (d) oily paper
  29. 29.⚖️ 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 same stick
  30. 30.🧺 Do we need chalk to mark shadows for the shadow clock? (a) needed (b) not needed
  31. 31.🌅 In the morning the Sun is in the east. Which way does a shadow point? (a) east (b) up (c) west (d) north
  32. 32.🔦 Which of these is opaque? (a) air (b) a book (c) clean water (d) butter paper
  33. 33.True or false: clear glass is translucent. (a) False (b) True
  34. 34.🛟 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
  35. 35.🔦 Is butter paper opaque, translucent or transparent? (a) opaque (b) translucent (c) transparent
  36. 36.⚖️ Fair test — how does the shadow of a stick change through the day? What do we do with “the same spot”? (a) we measure it (b) we keep it the same (c) we change it
  37. 37.🔦 Which of these is opaque? (a) clear glass (b) frosted glass (c) your hand (d) oily paper
  38. 38.🔦 Is clear glass opaque, translucent or transparent? (a) translucent (b) opaque (c) transparent
  39. 39.🔦 Which of these is transparent? (a) a steel plate (b) butter paper (c) tissue paper (d) clear glass
  40. 40.🔮 Predict: you move a torch closer to your hand. The shadow on the wall gets ___. (a) bigger (b) coloured (c) brighter (d) smaller

Answer key

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

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