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Shadow and Sundial Experiment Worksheet

Science experiments lesson 27: Shadows and a sundial · Set 799 · 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.True or false: turmeric powder is not needed for the shadow clock. (a) True (b) False
  2. 2.🔦 Is air opaque, translucent or transparent? (a) transparent (b) translucent (c) opaque
  3. 3.⚖️ Fair test — how does the shadow of a stick change through the day? What do we do with “the stick kept upright”? (a) we change it (b) we keep it the same (c) we measure it
  4. 4.🧺 Which of these is not needed for the shadow clock? (a) a straight stick (b) a sunny open place (c) turmeric powder (d) chalk to mark shadows
  5. 5.🧺 Do we need a balloon for the shadow clock? (a) needed (b) not needed
  6. 6.🧺 Which of these is needed for the shadow clock? (a) a straight stick (b) a balloon (c) turmeric powder (d) yeast
  7. 7.⚖️ 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
  8. 8.True or false: a magnet is not needed for the shadow clock. (a) False (b) True
  9. 9.🔦 Is butter paper opaque, translucent or transparent? (a) transparent (b) opaque (c) translucent
  10. 10.🔮 Predict: on a fully cloudy day, the sundial ___. (a) runs faster (b) works better (c) shows two times (d) does not work well
  11. 11.True or false: air is transparent. (a) False (b) True
  12. 12.🧺 Which of these is not needed for the shadow clock? (a) chalk to mark shadows (b) a sunny open place (c) a magnet (d) a straight stick
  13. 13.⚖️ 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) the time of day (d) shadow length
  14. 14.🧺 Three of these are needed for the shadow clock. Which one is NOT needed? (a) a clock to check (b) a magnet (c) a sunny open place (d) chalk to mark shadows
  15. 15.🔦 Which of these is opaque? (a) clean water (b) clear glass (c) oily paper (d) a brick
  16. 16.🔍 Which is the odd one out? (a) clear glass (b) butter paper (c) clear plastic film (d) air
  17. 17.🔦 Is a wooden board opaque, translucent or transparent? (a) translucent (b) transparent (c) opaque
  18. 18.🧺 Which of these is not needed for the shadow clock? (a) a sunny open place (b) a clock to check (c) a mirror (d) a straight stick
  19. 19.🔦 Which of these is opaque? (a) clean water (b) butter paper (c) clear glass (d) a book
  20. 20.🛟 What should you wear for a long time in the hot sun? (a) a woollen sweater (b) a raincoat (c) a cap or hat (d) nothing on your head
  21. 21.⚖️ 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 spot (b) shadow length (c) the same stick (d) the time of day
  22. 22.🧺 Which of these is needed for the shadow clock? (a) a mirror (b) a magnet (c) a balloon (d) a clock to check
  23. 23.🔍 Which is the odd one out? (a) tissue paper (b) a book (c) oily paper (d) frosted glass
  24. 24.🛟 While watching shadows outdoors, what must you never do? (a) wear a cap (b) mark with chalk (c) sit in the shade (d) look straight at the Sun
  25. 25.True or false: oily paper is opaque. (a) True (b) False
  26. 26.True or false: a brick is opaque. (a) True (b) False
  27. 27.True or false: a sunny open place is needed for the shadow clock. (a) True (b) False
  28. 28.🔦 Which of these is translucent? (a) oily paper (b) your hand (c) a brick (d) clear glass
  29. 29.🔦 Is tissue paper opaque, translucent or transparent? (a) opaque (b) translucent (c) transparent
  30. 30.🌞 When is a stick’s shadow the shortest? (a) around noon (b) late evening (c) at night (d) early morning
  31. 31.⚖️ 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 measure it (c) we change it
  32. 32.🧺 Three of these are needed for the shadow clock. Which one is NOT needed? (a) a sunny open place (b) chalk to mark shadows (c) a straight stick (d) turmeric powder
  33. 33.⚖️ Fair test — how does the shadow of a stick change through the day? What do we do with “shadow length”? (a) we change it (b) we measure it (c) we keep it the same
  34. 34.True or false: tissue paper is opaque. (a) False (b) True
  35. 35.🔮 Predict: the Sun is low in the evening sky. The stick’s shadow is ___. (a) short (b) missing (c) round (d) long
  36. 36.🧺 Do we need turmeric powder for the shadow clock? (a) needed (b) not needed
  37. 37.🌍 Why does the stick’s shadow move during the day? (a) the stick grows (b) Earth keeps spinning (c) the stick walks (d) the ground slides
  38. 38.🔍 Which is the odd one out? (a) your hand (b) a steel plate (c) oily paper (d) a wooden board
  39. 39.🔦 Is a book opaque, translucent or transparent? (a) translucent (b) opaque (c) transparent
  40. 40.⚖️ 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

Answer key

  1. True
  2. transparent
  3. we keep it the same
  4. turmeric powder
  5. not needed
  6. a straight stick
  7. False
  8. True
  9. translucent
  10. does not work well
  11. True
  12. a magnet
  13. shadow length
  14. a magnet
  15. a brick
  16. butter paper
  17. opaque
  18. a mirror
  19. a book
  20. a cap or hat
  21. the time of day
  22. a clock to check
  23. a book
  24. look straight at the Sun
  25. False
  26. True
  27. True
  28. oily paper
  29. translucent
  30. around noon
  31. we keep it the same
  32. turmeric powder
  33. we measure it
  34. False
  35. long
  36. not needed
  37. Earth keeps spinning
  38. oily paper
  39. opaque
  40. True

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