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Shadow and Sundial Experiment Worksheet

Science experiments lesson 27: Shadows and a sundial · Set 764 · 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.🌍 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
  2. 2.🔍 Which is the odd one out? (a) a book (b) butter paper (c) tissue paper (d) oily paper
  3. 3.⚖️ Fair test — how does the shadow of a stick change through the day? Which of these is what we measure? (a) the time of day (b) the same stick (c) shadow length (d) the stick kept upright
  4. 4.🧺 Do we need a balloon for the shadow clock? (a) not needed (b) needed
  5. 5.🌞 When is a stick’s shadow the shortest? (a) at night (b) late evening (c) around noon (d) early morning
  6. 6.🔦 Is frosted glass opaque, translucent or transparent? (a) translucent (b) transparent (c) opaque
  7. 7.⚖️ 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 spot (d) the time of day
  8. 8.🔦 Which of these is opaque? (a) air (b) a book (c) tissue paper (d) frosted glass
  9. 9.True or false: a magnet is not needed for the shadow clock. (a) True (b) False
  10. 10.🔦 Is a book opaque, translucent or transparent? (a) translucent (b) transparent (c) opaque
  11. 11.True or false: a sunny open place is not needed for the shadow clock. (a) True (b) False
  12. 12.True or false: a mirror is needed for the shadow clock. (a) True (b) False
  13. 13.🛟 What should you wear for a long time in the hot sun? (a) a woollen sweater (b) a raincoat (c) nothing on your head (d) a cap or hat
  14. 14.🧺 Which of these is not needed for the shadow clock? (a) yeast (b) a clock to check (c) a straight stick (d) a sunny open place
  15. 15.⚖️ 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
  16. 16.True or false: clear glass is translucent. (a) False (b) True
  17. 17.True or false: turmeric powder is not needed for the shadow clock. (a) False (b) True
  18. 18.True or false: tissue paper is translucent. (a) True (b) False
  19. 19.True or false: air is opaque. (a) True (b) False
  20. 20.🔦 Which of these is translucent? (a) butter paper (b) clear plastic film (c) clear glass (d) a book
  21. 21.🧺 Which of these is needed for the shadow clock? (a) a mirror (b) a straight stick (c) a battery cell (d) a balloon
  22. 22.🔦 Is butter paper opaque, translucent or transparent? (a) transparent (b) opaque (c) translucent
  23. 23.🔦 Which of these is transparent? (a) a brick (b) clear plastic film (c) butter paper (d) oily paper
  24. 24.True or false: clean water is translucent. (a) True (b) False
  25. 25.🔦 Which of these is opaque? (a) clean water (b) frosted glass (c) oily paper (d) a brick
  26. 26.🧺 Do we need a straight stick for the shadow clock? (a) not needed (b) needed
  27. 27.⚖️ Fair test — how does the shadow of a stick change through the day? True or false: the same spot is kept the same. (a) True (b) False
  28. 28.⚖️ 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) shadow length (c) the stick kept upright
  29. 29.🛟 While watching shadows outdoors, what must you never do? (a) sit in the shade (b) look straight at the Sun (c) mark with chalk (d) wear a cap
  30. 30.🔦 Which of these is translucent? (a) clear plastic film (b) a book (c) clean water (d) oily paper
  31. 31.⚖️ Fair test — how does the shadow of a stick change through the day? True or false: the time of day is the one thing we change. (a) True (b) False
  32. 32.🔦 Is a steel plate opaque, translucent or transparent? (a) opaque (b) transparent (c) translucent
  33. 33.🧺 Do we need a clock to check for the shadow clock? (a) not needed (b) needed
  34. 34.⚖️ 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
  35. 35.True or false: yeast is not needed for the shadow clock. (a) True (b) False
  36. 36.🌅 In the morning the Sun is in the east. Which way does a shadow point? (a) north (b) west (c) east (d) up
  37. 37.True or false: butter paper is opaque. (a) True (b) False
  38. 38.🔦 Which of these is transparent? (a) clear glass (b) a steel plate (c) tissue paper (d) a wooden board
  39. 39.🧺 Do we need turmeric powder for the shadow clock? (a) not needed (b) needed
  40. 40.🧺 Do we need chalk to mark shadows for the shadow clock? (a) not needed (b) needed

Answer key

  1. Earth keeps spinning
  2. a book
  3. shadow length
  4. not needed
  5. around noon
  6. translucent
  7. the time of day
  8. a book
  9. True
  10. opaque
  11. False
  12. False
  13. a cap or hat
  14. yeast
  15. we change it
  16. False
  17. True
  18. True
  19. False
  20. butter paper
  21. a straight stick
  22. translucent
  23. clear plastic film
  24. False
  25. a brick
  26. needed
  27. True
  28. the stick kept upright
  29. look straight at the Sun
  30. oily paper
  31. True
  32. opaque
  33. needed
  34. we keep it the same
  35. True
  36. west
  37. False
  38. clear glass
  39. not needed
  40. needed

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