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Shadow and Sundial Experiment Worksheet

Science experiments lesson 27: Shadows and a sundial · Set 497 · 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.🔦 Which of these is transparent? (a) tissue paper (b) a book (c) butter paper (d) clear plastic film
  2. 2.🔦 Which of these is opaque? (a) clear glass (b) your hand (c) butter paper (d) frosted glass
  3. 3.🧺 Three of these are needed for the shadow clock. Which one is NOT needed? (a) a balloon (b) chalk to mark shadows (c) a clock to check (d) a straight stick
  4. 4.🧺 Three of these are needed for the shadow clock. Which one is NOT needed? (a) a sunny open place (b) yeast (c) a straight stick (d) a clock to check
  5. 5.🔦 Which of these is transparent? (a) your hand (b) a steel plate (c) air (d) frosted glass
  6. 6.🔍 Which is the odd one out? (a) a wooden board (b) a brick (c) clear plastic film (d) a steel plate
  7. 7.🧺 Do we need a straight stick for the shadow clock? (a) not needed (b) needed
  8. 8.🔍 Which is the odd one out? (a) clear plastic film (b) oily paper (c) air (d) clean water
  9. 9.🧺 Do we need chalk to mark shadows for the shadow clock? (a) not needed (b) needed
  10. 10.True or false: tissue paper is translucent. (a) False (b) True
  11. 11.🛟 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
  12. 12.True or false: yeast is not needed for the shadow clock. (a) True (b) False
  13. 13.🔦 Is air opaque, translucent or transparent? (a) transparent (b) opaque (c) translucent
  14. 14.⚖️ 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
  15. 15.⚖️ Fair test — how does the shadow of a stick change through the day? True or false: the same stick is kept the same. (a) False (b) True
  16. 16.⚖️ Fair test — how does the shadow of a stick change through the day? True or false: the same spot is what we measure. (a) True (b) False
  17. 17.⚖️ Fair test — how does the shadow of a stick change through the day? What do we do with “the stick kept upright”? (a) we measure it (b) we keep it the same (c) we change it
  18. 18.⚖️ 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 measure it (c) we change it
  19. 19.True or false: frosted glass is translucent. (a) True (b) False
  20. 20.🔦 Which of these is translucent? (a) a book (b) a steel plate (c) clean water (d) tissue paper
  21. 21.⚖️ 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) the same spot (d) shadow length
  22. 22.True or false: a sunny open place is needed for the shadow clock. (a) False (b) True
  23. 23.True or false: clear glass is transparent. (a) False (b) True
  24. 24.🔦 Is oily paper opaque, translucent or transparent? (a) translucent (b) opaque (c) transparent
  25. 25.⚖️ Fair test — how does the shadow of a stick change through the day? What do we do with “the time of day”? (a) we change it (b) we keep it the same (c) we measure it
  26. 26.🧺 Which of these is needed for the shadow clock? (a) turmeric powder (b) a magnet (c) a battery cell (d) chalk to mark shadows
  27. 27.True or false: clear plastic film is transparent. (a) True (b) False
  28. 28.⚖️ 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
  29. 29.🌅 In the morning the Sun is in the east. Which way does a shadow point? (a) west (b) up (c) east (d) north
  30. 30.⚖️ Fair test — how does the shadow of a stick change through the day? True or false: the stick kept upright is the one thing we change. (a) True (b) False
  31. 31.True or false: a balloon is not needed for the shadow clock. (a) False (b) True
  32. 32.🧺 Which of these is not needed for the shadow clock? (a) a sunny open place (b) a clock to check (c) turmeric powder (d) a straight stick
  33. 33.True or false: a balloon is needed for the shadow clock. (a) False (b) True
  34. 34.🔍 Which is the odd one out? (a) clear glass (b) a wooden board (c) a brick (d) a book
  35. 35.🧺 Which of these is not needed for the shadow clock? (a) a sunny open place (b) a balloon (c) chalk to mark shadows (d) a clock to check
  36. 36.🔮 Predict: on a fully cloudy day, the sundial ___. (a) runs faster (b) does not work well (c) works better (d) shows two times
  37. 37.🧺 Do we need yeast for the shadow clock? (a) not needed (b) needed
  38. 38.True or false: a magnet is needed for the shadow clock. (a) False (b) True
  39. 39.⚖️ 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) True (b) False
  40. 40.🛟 What should you wear for a long time in the hot sun? (a) nothing on your head (b) a cap or hat (c) a raincoat (d) a woollen sweater

Answer key

  1. clear plastic film
  2. your hand
  3. a balloon
  4. yeast
  5. air
  6. clear plastic film
  7. needed
  8. oily paper
  9. needed
  10. True
  11. look straight at the Sun
  12. True
  13. transparent
  14. the same spot
  15. True
  16. False
  17. we keep it the same
  18. we keep it the same
  19. True
  20. tissue paper
  21. shadow length
  22. True
  23. True
  24. translucent
  25. we change it
  26. chalk to mark shadows
  27. True
  28. True
  29. west
  30. False
  31. True
  32. turmeric powder
  33. False
  34. clear glass
  35. a balloon
  36. does not work well
  37. not needed
  38. False
  39. True
  40. a cap or hat

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