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Shadow and Sundial Experiment Worksheet

Science experiments lesson 27: Shadows and a sundial · Set 998 · 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.🛟 While watching shadows outdoors, what must you never do? (a) mark with chalk (b) wear a cap (c) look straight at the Sun (d) sit in the shade
  2. 2.🔮 Predict: on a fully cloudy day, the sundial ___. (a) runs faster (b) works better (c) shows two times (d) does not work well
  3. 3.🕰️ What is a sundial used for? (a) telling the time (b) measuring rain (c) weighing things (d) making rainbows
  4. 4.🧺 Which of these is not needed for the shadow clock? (a) a mirror (b) a straight stick (c) a clock to check (d) a sunny open place
  5. 5.True or false: yeast is needed for the shadow clock. (a) True (b) False
  6. 6.True or false: your hand is opaque. (a) True (b) False
  7. 7.True or false: a steel plate is transparent. (a) True (b) False
  8. 8.🌍 Why does the stick’s shadow move during the day? (a) Earth keeps spinning (b) the stick walks (c) the ground slides (d) the stick grows
  9. 9.🔦 Which of these is opaque? (a) clear glass (b) clear plastic film (c) butter paper (d) a wooden board
  10. 10.⚖️ 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
  11. 11.🧺 Which of these is not needed for the shadow clock? (a) chalk to mark shadows (b) a sunny open place (c) a straight stick (d) a battery cell
  12. 12.True or false: yeast is not needed for the shadow clock. (a) True (b) False
  13. 13.🔦 Is frosted glass opaque, translucent or transparent? (a) translucent (b) transparent (c) opaque
  14. 14.🧺 Three of these are needed for the shadow clock. Which one is NOT needed? (a) a battery cell (b) chalk to mark shadows (c) a straight stick (d) a sunny open place
  15. 15.True or false: turmeric powder is not needed for the shadow clock. (a) True (b) False
  16. 16.🧺 Do we need yeast for the shadow clock? (a) needed (b) not needed
  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 change it (c) we keep it the same
  18. 18.True or false: a straight stick is not needed for the shadow clock. (a) True (b) False
  19. 19.True or false: a battery cell is not needed for the shadow clock. (a) False (b) True
  20. 20.🧺 Which of these is needed for the shadow clock? (a) a battery cell (b) a balloon (c) a magnet (d) a straight stick
  21. 21.🔍 Which is the odd one out? (a) clean water (b) air (c) butter paper (d) clear plastic film
  22. 22.🧺 Do we need a mirror for the shadow clock? (a) needed (b) not needed
  23. 23.True or false: a straight stick is needed for the shadow clock. (a) False (b) True
  24. 24.🔍 Which is the odd one out? (a) tissue paper (b) a steel plate (c) your hand (d) a wooden board
  25. 25.🧺 Which of these is needed for the shadow clock? (a) a magnet (b) a balloon (c) turmeric powder (d) a sunny open place
  26. 26.🔮 Predict: you move a torch closer to your hand. The shadow on the wall gets ___. (a) brighter (b) smaller (c) coloured (d) bigger
  27. 27.⚖️ 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
  28. 28.⚖️ Fair test — how does the shadow of a stick change through the day? What do we do with “the same spot”? (a) we keep it the same (b) we change it (c) we measure it
  29. 29.🔦 Which of these is transparent? (a) your hand (b) clear plastic film (c) a book (d) frosted glass
  30. 30.True or false: a magnet is needed for the shadow clock. (a) False (b) True
  31. 31.🧺 Do we need a balloon for the shadow clock? (a) needed (b) not needed
  32. 32.🧺 Which of these is needed for the shadow clock? (a) yeast (b) a balloon (c) a clock to check (d) a magnet
  33. 33.⚖️ 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 change it (c) we measure it
  34. 34.⚖️ 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
  35. 35.🔦 Which of these is transparent? (a) a brick (b) tissue paper (c) butter paper (d) clear glass
  36. 36.🔮 Predict: the Sun is low in the evening sky. The stick’s shadow is ___. (a) short (b) missing (c) long (d) round
  37. 37.🔦 Is air opaque, translucent or transparent? (a) opaque (b) transparent (c) translucent
  38. 38.⚖️ 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) False (b) True
  39. 39.⚖️ 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 change it (c) we keep it the same
  40. 40.🔦 Which of these is opaque? (a) clean water (b) oily paper (c) butter paper (d) a brick

Answer key

  1. look straight at the Sun
  2. does not work well
  3. telling the time
  4. a mirror
  5. False
  6. True
  7. False
  8. Earth keeps spinning
  9. a wooden board
  10. True
  11. a battery cell
  12. True
  13. translucent
  14. a battery cell
  15. True
  16. not needed
  17. we keep it the same
  18. False
  19. True
  20. a straight stick
  21. butter paper
  22. not needed
  23. True
  24. tissue paper
  25. a sunny open place
  26. bigger
  27. the same stick
  28. we keep it the same
  29. clear plastic film
  30. False
  31. not needed
  32. a clock to check
  33. we keep it the same
  34. False
  35. clear glass
  36. long
  37. transparent
  38. False
  39. we measure it
  40. a brick

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