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Shadow and Sundial Experiment Worksheet

Science experiments lesson 27: Shadows and a sundial · Set 991 · 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 chalk to mark shadows for the shadow clock? (a) needed (b) not needed
  2. 2.🌍 Why does the stick’s shadow move during the day? (a) the stick grows (b) the ground slides (c) the stick walks (d) Earth keeps spinning
  3. 3.⚖️ 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
  4. 4.🛟 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
  5. 5.🧺 Three of these are needed for the shadow clock. Which one is NOT needed? (a) a clock to check (b) yeast (c) chalk to mark shadows (d) a straight stick
  6. 6.🔦 Which of these is translucent? (a) a steel plate (b) oily paper (c) your hand (d) a wooden board
  7. 7.🛟 While watching shadows outdoors, what must you never do? (a) sit in the shade (b) mark with chalk (c) look straight at the Sun (d) wear a cap
  8. 8.True or false: your hand is transparent. (a) False (b) True
  9. 9.🧺 Which of these is needed for the shadow clock? (a) yeast (b) turmeric powder (c) chalk to mark shadows (d) a mirror
  10. 10.True or false: butter paper is translucent. (a) False (b) True
  11. 11.🧺 Three of these are needed for the shadow clock. Which one is NOT needed? (a) a magnet (b) a clock to check (c) a sunny open place (d) chalk to mark shadows
  12. 12.⚖️ Fair test — how does the shadow of a stick change through the day? True or false: shadow length is what we measure. (a) True (b) False
  13. 13.🔦 Which of these is opaque? (a) clear glass (b) frosted glass (c) butter paper (d) your hand
  14. 14.🔦 Which of these is opaque? (a) a wooden board (b) clean water (c) butter paper (d) clear plastic film
  15. 15.🔦 Which of these is opaque? (a) clear plastic film (b) clean water (c) a book (d) tissue paper
  16. 16.🔦 Is air opaque, translucent or transparent? (a) opaque (b) transparent (c) translucent
  17. 17.True or false: oily paper is translucent. (a) True (b) False
  18. 18.🔮 Predict: on a fully cloudy day, the sundial ___. (a) runs faster (b) does not work well (c) shows two times (d) works better
  19. 19.True or false: a battery cell is needed for the shadow clock. (a) True (b) False
  20. 20.True or false: clear glass is opaque. (a) True (b) False
  21. 21.⚖️ 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
  22. 22.🔮 Predict: the Sun is low in the evening sky. The stick’s shadow is ___. (a) short (b) missing (c) round (d) long
  23. 23.🧺 Three of these are needed for the shadow clock. Which one is NOT needed? (a) a straight stick (b) chalk to mark shadows (c) a mirror (d) a clock to check
  24. 24.True or false: a mirror is not needed for the shadow clock. (a) True (b) False
  25. 25.🧺 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 straight stick
  26. 26.True or false: a straight stick is not needed for the shadow clock. (a) True (b) False
  27. 27.⚖️ Fair test — how does the shadow of a stick change through the day? Which of these is the one thing we change? (a) shadow length (b) the stick kept upright (c) the same stick (d) the time of day
  28. 28.⚖️ 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 same stick (c) shadow length (d) the same spot
  29. 29.🔦 Which of these is transparent? (a) oily paper (b) frosted glass (c) a brick (d) clean water
  30. 30.⚖️ Fair test — how does the shadow of a stick change through the day? True or false: the same stick is kept the same. (a) True (b) False
  31. 31.🧺 Do we need a clock to check for the shadow clock? (a) not needed (b) needed
  32. 32.📘 Why does a shadow form? (a) the ground is dark (b) the object is cold (c) light bends round it (d) an object blocks light
  33. 33.True or false: a straight stick is needed for the shadow clock. (a) True (b) False
  34. 34.🧺 Do we need a sunny open place for the shadow clock? (a) not needed (b) needed
  35. 35.True or false: clear glass is transparent. (a) False (b) True
  36. 36.⚖️ 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
  37. 37.🧺 Three of these are needed for the shadow clock. Which one is NOT needed? (a) a clock to check (b) a sunny open place (c) a straight stick (d) a balloon
  38. 38.🔍 Which is the odd one out? (a) air (b) clear glass (c) clean water (d) oily paper
  39. 39.🔦 Is a book opaque, translucent or transparent? (a) transparent (b) translucent (c) opaque
  40. 40.True or false: a wooden board is transparent. (a) True (b) False

Answer key

  1. needed
  2. Earth keeps spinning
  3. we keep it the same
  4. a cap or hat
  5. yeast
  6. oily paper
  7. look straight at the Sun
  8. False
  9. chalk to mark shadows
  10. True
  11. a magnet
  12. True
  13. your hand
  14. a wooden board
  15. a book
  16. transparent
  17. True
  18. does not work well
  19. False
  20. False
  21. we change it
  22. long
  23. a mirror
  24. True
  25. turmeric powder
  26. False
  27. the time of day
  28. shadow length
  29. clean water
  30. True
  31. needed
  32. an object blocks light
  33. True
  34. needed
  35. True
  36. we keep it the same
  37. a balloon
  38. oily paper
  39. opaque
  40. False

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