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Shadow and Sundial Experiment Worksheet

Science experiments lesson 27: Shadows and a sundial · Set 520 · 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.🔮 Predict: you move a torch closer to your hand. The shadow on the wall gets ___. (a) bigger (b) smaller (c) coloured (d) brighter
  2. 2.True or false: clear plastic film is translucent. (a) True (b) False
  3. 3.True or false: chalk to mark shadows is not needed for the shadow clock. (a) True (b) False
  4. 4.🔍 Which is the odd one out? (a) a wooden board (b) air (c) clear plastic film (d) clean water
  5. 5.True or false: a balloon is needed for the shadow clock. (a) False (b) True
  6. 6.🧺 Which of these is not needed for the shadow clock? (a) a straight stick (b) a battery cell (c) chalk to mark shadows (d) a clock to check
  7. 7.⚖️ 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 same spot (c) shadow length (d) the same stick
  8. 8.🔦 Which of these is transparent? (a) tissue paper (b) oily paper (c) clear glass (d) a steel plate
  9. 9.⚖️ 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
  10. 10.🌞 When is a stick’s shadow the shortest? (a) around noon (b) late evening (c) early morning (d) at night
  11. 11.⚖️ Fair test — how does the shadow of a stick change through the day? What do we do with “shadow length”? (a) we measure it (b) we keep it the same (c) we change it
  12. 12.⚖️ 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 stick kept upright
  13. 13.True or false: a brick is opaque. (a) False (b) True
  14. 14.🧺 Three of these are needed for the shadow clock. Which one is NOT needed? (a) a straight stick (b) chalk to mark shadows (c) a clock to check (d) a battery cell
  15. 15.🔦 Which of these is opaque? (a) a steel plate (b) clear glass (c) clean water (d) butter paper
  16. 16.🧺 Which of these is not needed for the shadow clock? (a) a straight stick (b) a balloon (c) chalk to mark shadows (d) a sunny open place
  17. 17.⚖️ 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 same spot (d) the time of day
  18. 18.🔦 Which of these is transparent? (a) butter paper (b) oily paper (c) a book (d) clean water
  19. 19.🧺 Which of these is needed for the shadow clock? (a) a battery cell (b) a magnet (c) a mirror (d) chalk to mark shadows
  20. 20.True or false: a magnet is needed for the shadow clock. (a) False (b) True
  21. 21.🔍 Which is the odd one out? (a) a wooden board (b) a book (c) a steel plate (d) air
  22. 22.🧺 Three of these are needed for the shadow clock. Which one is NOT needed? (a) a straight stick (b) a balloon (c) a sunny open place (d) a clock to check
  23. 23.🧺 Which of these is not needed for the shadow clock? (a) a mirror (b) a clock to check (c) a straight stick (d) a sunny open place
  24. 24.🧺 Three of these are needed for the shadow clock. Which one is NOT needed? (a) a sunny open place (b) a mirror (c) chalk to mark shadows (d) a clock to check
  25. 25.🔍 Which is the odd one out? (a) a brick (b) your hand (c) butter paper (d) a wooden board
  26. 26.🧺 Do we need chalk to mark shadows for the shadow clock? (a) not needed (b) needed
  27. 27.True or false: a steel plate is opaque. (a) False (b) True
  28. 28.⚖️ Fair test — how does the shadow of a stick change through the day? What do we do with “the stick kept upright”? (a) we keep it the same (b) we change it (c) we measure it
  29. 29.True or false: a sunny open place is not needed for the shadow clock. (a) False (b) True
  30. 30.🧺 Three of these are needed for the shadow clock. Which one is NOT needed? (a) a straight stick (b) chalk to mark shadows (c) a sunny open place (d) yeast
  31. 31.🔍 Which is the odd one out? (a) a brick (b) a book (c) your hand (d) oily paper
  32. 32.🧺 Do we need yeast for the shadow clock? (a) needed (b) not needed
  33. 33.🔦 Is tissue paper opaque, translucent or transparent? (a) translucent (b) transparent (c) opaque
  34. 34.🔮 Predict: on a fully cloudy day, the sundial ___. (a) runs faster (b) does not work well (c) works better (d) shows two times
  35. 35.⚖️ Fair test — how does the shadow of a stick change through the day? True or false: the same stick is the one thing we change. (a) False (b) True
  36. 36.🧺 Which of these is needed for the shadow clock? (a) a balloon (b) a magnet (c) a sunny open place (d) turmeric powder
  37. 37.🔍 Which is the odd one out? (a) your hand (b) clear glass (c) clear plastic film (d) clean water
  38. 38.🧺 Do we need turmeric powder for the shadow clock? (a) needed (b) not needed
  39. 39.🔦 Which of these is transparent? (a) a book (b) clear plastic film (c) butter paper (d) a brick
  40. 40.🧺 Do we need a battery cell for the shadow clock? (a) not needed (b) needed

Answer key

  1. bigger
  2. False
  3. False
  4. a wooden board
  5. False
  6. a battery cell
  7. shadow length
  8. clear glass
  9. we change it
  10. around noon
  11. we measure it
  12. the stick kept upright
  13. True
  14. a battery cell
  15. a steel plate
  16. a balloon
  17. the time of day
  18. clean water
  19. chalk to mark shadows
  20. False
  21. air
  22. a balloon
  23. a mirror
  24. a mirror
  25. butter paper
  26. needed
  27. True
  28. we keep it the same
  29. False
  30. yeast
  31. oily paper
  32. not needed
  33. translucent
  34. does not work well
  35. False
  36. a sunny open place
  37. your hand
  38. not needed
  39. clear plastic film
  40. not needed

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