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Shadow and Sundial Experiment Worksheet

Science experiments lesson 27: Shadows and a sundial · Set 810 · 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 is the odd one out? (a) frosted glass (b) your hand (c) butter paper (d) tissue paper
  2. 2.⚖️ 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 measure it (c) we change it
  3. 3.🔮 Predict: you move a torch closer to your hand. The shadow on the wall gets ___. (a) bigger (b) coloured (c) smaller (d) brighter
  4. 4.🧺 Which of these is not needed for the shadow clock? (a) chalk to mark shadows (b) a sunny open place (c) a magnet (d) a clock to check
  5. 5.⚖️ 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 spot
  6. 6.🧺 Three of these are needed for the shadow clock. Which one is NOT needed? (a) a straight stick (b) a sunny open place (c) a clock to check (d) yeast
  7. 7.🔮 Predict: on a fully cloudy day, the sundial ___. (a) does not work well (b) works better (c) runs faster (d) shows two times
  8. 8.🔦 Which of these is translucent? (a) your hand (b) a brick (c) air (d) frosted glass
  9. 9.🧺 Do we need a straight stick for the shadow clock? (a) not needed (b) needed
  10. 10.⚖️ 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 change it (c) we keep it the same
  11. 11.🧺 Do we need a battery cell for the shadow clock? (a) needed (b) not needed
  12. 12.🔦 Which of these is transparent? (a) tissue paper (b) clear glass (c) a brick (d) a wooden board
  13. 13.🔦 Which of these is opaque? (a) a book (b) tissue paper (c) oily paper (d) frosted glass
  14. 14.🧺 Which of these is needed for the shadow clock? (a) a sunny open place (b) yeast (c) a magnet (d) a balloon
  15. 15.🕰️ What is a sundial used for? (a) measuring rain (b) weighing things (c) telling the time (d) making rainbows
  16. 16.⚖️ Fair test — how does the shadow of a stick change through the day? What do we do with “shadow length”? (a) we keep it the same (b) we change it (c) we measure it
  17. 17.🧺 Do we need a sunny open place for the shadow clock? (a) needed (b) not needed
  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 measure it (b) we change it (c) we keep it the same
  19. 19.🧺 Which of these is not needed for the shadow clock? (a) a clock to check (b) a straight stick (c) yeast (d) chalk to mark shadows
  20. 20.🔦 Which of these is opaque? (a) your hand (b) butter paper (c) frosted glass (d) clean water
  21. 21.⚖️ 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 stick (c) the same spot (d) the stick kept upright
  22. 22.🌍 Why does the stick’s shadow move during the day? (a) the stick walks (b) Earth keeps spinning (c) the ground slides (d) the stick grows
  23. 23.True or false: chalk to mark shadows is needed for the shadow clock. (a) True (b) False
  24. 24.🔦 Which of these is opaque? (a) tissue paper (b) clear plastic film (c) a wooden board (d) clear glass
  25. 25.⚖️ 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) True (b) False
  26. 26.🔍 Which is the odd one out? (a) clear plastic film (b) clean water (c) butter paper (d) air
  27. 27.🧺 Do we need a balloon for the shadow clock? (a) needed (b) not needed
  28. 28.True or false: a battery cell is needed for the shadow clock. (a) True (b) False
  29. 29.True or false: air is transparent. (a) False (b) True
  30. 30.🔦 Which of these is transparent? (a) air (b) a steel plate (c) oily paper (d) a wooden board
  31. 31.🔍 Which is the odd one out? (a) clear glass (b) frosted glass (c) air (d) clear plastic film
  32. 32.🔦 Is clear plastic film opaque, translucent or transparent? (a) opaque (b) translucent (c) transparent
  33. 33.True or false: a brick is translucent. (a) True (b) False
  34. 34.🔦 Is a wooden board opaque, translucent or transparent? (a) opaque (b) transparent (c) translucent
  35. 35.🔦 Is clean water opaque, translucent or transparent? (a) translucent (b) opaque (c) transparent
  36. 36.🔮 Predict: the Sun is low in the evening sky. The stick’s shadow is ___. (a) round (b) missing (c) long (d) short
  37. 37.⚖️ 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 same stick (c) the time of day
  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 kept the same. (a) True (b) False
  40. 40.True or false: turmeric powder is needed for the shadow clock. (a) True (b) False

Answer key

  1. your hand
  2. we keep it the same
  3. bigger
  4. a magnet
  5. the same spot
  6. yeast
  7. does not work well
  8. frosted glass
  9. needed
  10. we keep it the same
  11. not needed
  12. clear glass
  13. a book
  14. a sunny open place
  15. telling the time
  16. we measure it
  17. needed
  18. we keep it the same
  19. yeast
  20. your hand
  21. shadow length
  22. Earth keeps spinning
  23. True
  24. a wooden board
  25. False
  26. butter paper
  27. not needed
  28. False
  29. True
  30. air
  31. frosted glass
  32. transparent
  33. False
  34. opaque
  35. transparent
  36. long
  37. the same stick
  38. False
  39. False
  40. False

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