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Shadow and Sundial Experiment Worksheet

Science experiments lesson 27: Shadows and a sundial · Set 202 · 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.🧺 Do we need turmeric powder for the shadow clock? (a) not needed (b) needed
  2. 2.True or false: clear glass is translucent. (a) True (b) False
  3. 3.🧺 Which of these is not needed for the shadow clock? (a) a balloon (b) a clock to check (c) a straight stick (d) chalk to mark shadows
  4. 4.True or false: clear plastic film is transparent. (a) False (b) True
  5. 5.🧺 Which of these is needed for the shadow clock? (a) yeast (b) a clock to check (c) a balloon (d) a mirror
  6. 6.True or false: a sunny open place is needed for the shadow clock. (a) False (b) True
  7. 7.🌅 In the morning the Sun is in the east. Which way does a shadow point? (a) up (b) east (c) north (d) west
  8. 8.⚖️ 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) the same stick (c) shadow length
  9. 9.🔦 Is tissue paper opaque, translucent or transparent? (a) transparent (b) opaque (c) translucent
  10. 10.🔮 Predict: you move a torch closer to your hand. The shadow on the wall gets ___. (a) brighter (b) bigger (c) smaller (d) coloured
  11. 11.🧺 Do we need yeast for the shadow clock? (a) not needed (b) needed
  12. 12.🕰️ What is a sundial used for? (a) measuring rain (b) making rainbows (c) telling the time (d) weighing things
  13. 13.⚖️ 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
  14. 14.⚖️ Fair test — how does the shadow of a stick change through the day? True or false: the same stick is what we measure. (a) False (b) True
  15. 15.🔍 Which is the odd one out? (a) butter paper (b) tissue paper (c) frosted glass (d) air
  16. 16.🧺 Three of these are needed for the shadow clock. Which one is NOT needed? (a) a balloon (b) chalk to mark shadows (c) a straight stick (d) a clock to check
  17. 17.🔦 Which of these is opaque? (a) oily paper (b) clear plastic film (c) clean water (d) your hand
  18. 18.⚖️ Fair test — how does the shadow of a stick change through the day? Which of these is what we measure? (a) the time of day (b) the stick kept upright (c) the same spot (d) shadow length
  19. 19.🧺 Do we need a magnet for the shadow clock? (a) needed (b) not needed
  20. 20.🔍 Which is the odd one out? (a) your hand (b) a brick (c) a wooden board (d) clear plastic film
  21. 21.🔍 Which is the odd one out? (a) frosted glass (b) air (c) clear plastic film (d) clean water
  22. 22.🧺 Which of these is needed for the shadow clock? (a) turmeric powder (b) a sunny open place (c) yeast (d) a balloon
  23. 23.⚖️ 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
  24. 24.🔦 Which of these is transparent? (a) clear glass (b) your hand (c) oily paper (d) a wooden board
  25. 25.🧺 Which of these is not needed for the shadow clock? (a) a magnet (b) a sunny open place (c) chalk to mark shadows (d) a straight stick
  26. 26.True or false: a balloon is not needed for the shadow clock. (a) True (b) False
  27. 27.🌍 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
  28. 28.🧺 Do we need a mirror for the shadow clock? (a) needed (b) not needed
  29. 29.🧺 Three of these are needed for the shadow clock. Which one is NOT needed? (a) turmeric powder (b) chalk to mark shadows (c) a sunny open place (d) a clock to check
  30. 30.🔦 Which of these is transparent? (a) tissue paper (b) oily paper (c) clean water (d) a wooden board
  31. 31.🧺 Do we need a straight stick for the shadow clock? (a) not needed (b) needed
  32. 32.🔮 Predict: the Sun is low in the evening sky. The stick’s shadow is ___. (a) missing (b) round (c) short (d) long
  33. 33.True or false: a magnet is not needed for the shadow clock. (a) True (b) False
  34. 34.⚖️ 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) the time of day (c) shadow length (d) the same spot
  35. 35.⚖️ 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 time of day (c) the same spot
  36. 36.🧺 Which of these is not needed for the shadow clock? (a) chalk to mark shadows (b) a clock to check (c) a straight stick (d) turmeric powder
  37. 37.🔦 Which of these is opaque? (a) air (b) a book (c) oily paper (d) butter paper
  38. 38.🔍 Which is the odd one out? (a) your hand (b) a brick (c) oily paper (d) a wooden board
  39. 39.🔮 Predict: on a fully cloudy day, the sundial ___. (a) runs faster (b) does not work well (c) works better (d) shows two times
  40. 40.🔦 Which of these is opaque? (a) a steel plate (b) clean water (c) tissue paper (d) oily paper

Answer key

  1. not needed
  2. False
  3. a balloon
  4. True
  5. a clock to check
  6. True
  7. west
  8. the same stick
  9. translucent
  10. bigger
  11. not needed
  12. telling the time
  13. we keep it the same
  14. False
  15. air
  16. a balloon
  17. your hand
  18. shadow length
  19. not needed
  20. clear plastic film
  21. frosted glass
  22. a sunny open place
  23. True
  24. clear glass
  25. a magnet
  26. True
  27. Earth keeps spinning
  28. not needed
  29. turmeric powder
  30. clean water
  31. needed
  32. long
  33. True
  34. the time of day
  35. the same spot
  36. turmeric powder
  37. a book
  38. oily paper
  39. does not work well
  40. a steel plate

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