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Shadow and Sundial Experiment Worksheet

Science experiments lesson 27: Shadows and a sundial · Set 954 · 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.🔦 Is oily paper opaque, translucent or transparent? (a) transparent (b) translucent (c) opaque
  2. 2.⚖️ Fair test — how does the shadow of a stick change through the day? What do we do with “the same stick”? (a) we change it (b) we keep it the same (c) we measure it
  3. 3.🔦 Is clear plastic film opaque, translucent or transparent? (a) opaque (b) transparent (c) translucent
  4. 4.🧺 Three of these are needed for the shadow clock. Which one is NOT needed? (a) a clock to check (b) turmeric powder (c) a straight stick (d) chalk to mark shadows
  5. 5.⚖️ 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 stick kept upright (d) the same spot
  6. 6.🛟 While watching shadows outdoors, what must you never do? (a) look straight at the Sun (b) sit in the shade (c) wear a cap (d) mark with chalk
  7. 7.🌅 In the morning the Sun is in the east. Which way does a shadow point? (a) north (b) up (c) east (d) west
  8. 8.True or false: a book is opaque. (a) True (b) False
  9. 9.🧺 Three of these are needed for the shadow clock. Which one is NOT needed? (a) a mirror (b) a clock to check (c) a straight stick (d) a sunny open place
  10. 10.True or false: tissue paper is opaque. (a) False (b) True
  11. 11.🔮 Predict: you move a torch closer to your hand. The shadow on the wall gets ___. (a) bigger (b) brighter (c) smaller (d) coloured
  12. 12.True or false: your hand is transparent. (a) False (b) True
  13. 13.🔦 Which of these is opaque? (a) butter paper (b) a steel plate (c) tissue paper (d) air
  14. 14.🔦 Is frosted glass opaque, translucent or transparent? (a) opaque (b) translucent (c) transparent
  15. 15.True or false: clear plastic film is translucent. (a) False (b) True
  16. 16.🧺 Which of these is needed for the shadow clock? (a) a straight stick (b) a magnet (c) a mirror (d) yeast
  17. 17.True or false: a book is translucent. (a) True (b) False
  18. 18.🧺 Which of these is needed for the shadow clock? (a) a mirror (b) a clock to check (c) turmeric powder (d) a magnet
  19. 19.⚖️ 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
  20. 20.🔮 Predict: on a fully cloudy day, the sundial ___. (a) does not work well (b) shows two times (c) runs faster (d) works better
  21. 21.🕰️ What is a sundial used for? (a) measuring rain (b) weighing things (c) telling the time (d) making rainbows
  22. 22.🔍 Which is the odd one out? (a) your hand (b) a brick (c) tissue paper (d) a steel plate
  23. 23.🔮 Predict: the Sun is low in the evening sky. The stick’s shadow is ___. (a) short (b) missing (c) long (d) round
  24. 24.🔍 Which is the odd one out? (a) a brick (b) your hand (c) a wooden board (d) clean water
  25. 25.🧺 Do we need a sunny open place for the shadow clock? (a) not needed (b) needed
  26. 26.🧺 Three of these are needed for the shadow clock. Which one is NOT needed? (a) a sunny open place (b) a magnet (c) a straight stick (d) a clock to check
  27. 27.⚖️ Fair test — how does the shadow of a stick change through the day? True or false: the stick kept upright is kept the same. (a) False (b) True
  28. 28.True or false: chalk to mark shadows is needed for the shadow clock. (a) True (b) False
  29. 29.True or false: butter paper is transparent. (a) True (b) False
  30. 30.🧺 Do we need a straight stick for the shadow clock? (a) needed (b) not needed
  31. 31.🔦 Which of these is opaque? (a) your hand (b) air (c) frosted glass (d) clean water
  32. 32.⚖️ 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
  33. 33.🧺 Which of these is not needed for the shadow clock? (a) a clock to check (b) a sunny open place (c) chalk to mark shadows (d) a battery cell
  34. 34.True or false: a mirror is needed for the shadow clock. (a) True (b) False
  35. 35.🔦 Is butter paper opaque, translucent or transparent? (a) translucent (b) transparent (c) opaque
  36. 36.🌍 Why does the stick’s shadow move during the day? (a) the stick walks (b) the stick grows (c) the ground slides (d) Earth keeps spinning
  37. 37.True or false: frosted glass is transparent. (a) True (b) False
  38. 38.🔦 Which of these is transparent? (a) clean water (b) a brick (c) your hand (d) a steel plate
  39. 39.🧺 Three of these are needed for the shadow clock. Which one is NOT needed? (a) yeast (b) a sunny open place (c) a clock to check (d) a straight stick
  40. 40.⚖️ Fair test — how does the shadow of a stick change through the day? What do we do with “the time of day”? (a) we measure it (b) we change it (c) we keep it the same

Answer key

  1. translucent
  2. we keep it the same
  3. transparent
  4. turmeric powder
  5. shadow length
  6. look straight at the Sun
  7. west
  8. True
  9. a mirror
  10. False
  11. bigger
  12. False
  13. a steel plate
  14. translucent
  15. False
  16. a straight stick
  17. False
  18. a clock to check
  19. False
  20. does not work well
  21. telling the time
  22. tissue paper
  23. long
  24. clean water
  25. needed
  26. a magnet
  27. True
  28. True
  29. False
  30. needed
  31. your hand
  32. we measure it
  33. a battery cell
  34. False
  35. translucent
  36. Earth keeps spinning
  37. False
  38. clean water
  39. yeast
  40. we change it

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