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Shadow and Sundial Experiment Worksheet

Science experiments lesson 27: Shadows and a sundial · Set 408 · 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.🔦 Is your hand opaque, translucent or transparent? (a) translucent (b) transparent (c) opaque
  3. 3.🧺 Which of these is needed for the shadow clock? (a) yeast (b) a magnet (c) a balloon (d) a clock to check
  4. 4.🌍 Why does the stick’s shadow move during the day? (a) the stick grows (b) the ground slides (c) Earth keeps spinning (d) the stick walks
  5. 5.🔦 Which of these is opaque? (a) butter paper (b) tissue paper (c) a wooden board (d) clear plastic film
  6. 6.🔮 Predict: on a fully cloudy day, the sundial ___. (a) shows two times (b) runs faster (c) does not work well (d) works better
  7. 7.🔦 Is clear glass opaque, translucent or transparent? (a) opaque (b) transparent (c) translucent
  8. 8.🔍 Which is the odd one out? (a) a brick (b) a book (c) clean water (d) your hand
  9. 9.🔦 Which of these is translucent? (a) a book (b) your hand (c) oily paper (d) a wooden board
  10. 10.True or false: a wooden board is translucent. (a) False (b) True
  11. 11.🧺 Three of these are needed for the shadow clock. Which one is NOT needed? (a) a clock to check (b) a straight stick (c) yeast (d) a sunny open place
  12. 12.True or false: frosted glass is transparent. (a) True (b) False
  13. 13.⚖️ Fair test — how does the shadow of a stick change through the day? True or false: shadow length is kept the same. (a) False (b) True
  14. 14.🔦 Is a steel plate opaque, translucent or transparent? (a) translucent (b) opaque (c) transparent
  15. 15.🧺 Three of these are needed for the shadow clock. Which one is NOT needed? (a) a mirror (b) a sunny open place (c) chalk to mark shadows (d) a straight stick
  16. 16.🧺 Do we need a mirror for the shadow clock? (a) needed (b) not needed
  17. 17.🌅 In the morning the Sun is in the east. Which way does a shadow point? (a) west (b) up (c) north (d) east
  18. 18.🧺 Which of these is not needed for the shadow clock? (a) a straight stick (b) chalk to mark shadows (c) a clock to check (d) a mirror
  19. 19.⚖️ 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
  20. 20.🧺 Do we need a battery cell for the shadow clock? (a) not needed (b) needed
  21. 21.🔮 Predict: the Sun is low in the evening sky. The stick’s shadow is ___. (a) missing (b) short (c) long (d) round
  22. 22.🧺 Three of these are needed for the shadow clock. Which one is NOT needed? (a) a clock to check (b) chalk to mark shadows (c) a straight stick (d) a balloon
  23. 23.🔍 Which is the odd one out? (a) a book (b) frosted glass (c) a wooden board (d) a steel plate
  24. 24.🛟 While watching shadows outdoors, what must you never do? (a) sit in the shade (b) look straight at the Sun (c) wear a cap (d) mark with chalk
  25. 25.🌞 When is a stick’s shadow the shortest? (a) early morning (b) around noon (c) late evening (d) at night
  26. 26.True or false: a sunny open place is not needed for the shadow clock. (a) False (b) True
  27. 27.🧺 Do we need a sunny open place for the shadow clock? (a) needed (b) not needed
  28. 28.🔍 Which is the odd one out? (a) a wooden board (b) your hand (c) a book (d) butter paper
  29. 29.True or false: your hand is transparent. (a) True (b) False
  30. 30.⚖️ 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
  31. 31.True or false: frosted glass is translucent. (a) True (b) False
  32. 32.🧺 Do we need a straight stick for the shadow clock? (a) not needed (b) needed
  33. 33.True or false: a battery cell is not needed for the shadow clock. (a) False (b) True
  34. 34.🔦 Which of these is opaque? (a) a book (b) tissue paper (c) clear plastic film (d) oily paper
  35. 35.True or false: a magnet is not needed for the shadow clock. (a) False (b) True
  36. 36.🧺 Do we need a balloon for the shadow clock? (a) needed (b) not needed
  37. 37.🔦 Is a book opaque, translucent or transparent? (a) opaque (b) transparent (c) translucent
  38. 38.🧺 Do we need a magnet for the shadow clock? (a) not needed (b) needed
  39. 39.⚖️ Fair test — how does the shadow of a stick change through the day? True or false: the same spot is the one thing we change. (a) True (b) False
  40. 40.🔮 Predict: you move a torch closer to your hand. The shadow on the wall gets ___. (a) bigger (b) brighter (c) coloured (d) smaller

Answer key

  1. translucent
  2. opaque
  3. a clock to check
  4. Earth keeps spinning
  5. a wooden board
  6. does not work well
  7. transparent
  8. clean water
  9. oily paper
  10. False
  11. yeast
  12. False
  13. False
  14. opaque
  15. a mirror
  16. not needed
  17. west
  18. a mirror
  19. True
  20. not needed
  21. long
  22. a balloon
  23. frosted glass
  24. look straight at the Sun
  25. around noon
  26. False
  27. needed
  28. butter paper
  29. False
  30. we keep it the same
  31. True
  32. needed
  33. True
  34. a book
  35. True
  36. not needed
  37. opaque
  38. not needed
  39. False
  40. bigger

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