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Shadow and Sundial Experiment Worksheet

Science experiments lesson 27: Shadows and a sundial · Set 339 · 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.

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

Answer key

  1. oily paper
  2. True
  3. look straight at the Sun
  4. telling the time
  5. True
  6. False
  7. we keep it the same
  8. butter paper
  9. needed
  10. we change it
  11. opaque
  12. long
  13. transparent
  14. a mirror
  15. opaque
  16. butter paper
  17. False
  18. the time of day
  19. False
  20. clear glass
  21. not needed
  22. Earth keeps spinning
  23. a straight stick
  24. your hand
  25. False
  26. False
  27. clear plastic film
  28. False
  29. True
  30. tissue paper
  31. we keep it the same
  32. a clock to check
  33. clear plastic film
  34. west
  35. shadow length
  36. True
  37. frosted glass
  38. a balloon
  39. opaque
  40. turmeric powder

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