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Shadow and Sundial Experiment Worksheet

Science experiments lesson 27: Shadows and a sundial · Set 783 · 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: a battery cell is not needed for the shadow clock. (a) True (b) False
  2. 2.True or false: chalk to mark shadows is needed for the shadow clock. (a) True (b) False
  3. 3.🧺 Three of these are needed for the shadow clock. Which one is NOT needed? (a) a magnet (b) a straight stick (c) a sunny open place (d) a clock to check
  4. 4.True or false: a sunny open place is not needed for the shadow clock. (a) False (b) True
  5. 5.🔮 Predict: you move a torch closer to your hand. The shadow on the wall gets ___. (a) bigger (b) coloured (c) brighter (d) smaller
  6. 6.🔦 Which of these is opaque? (a) butter paper (b) your hand (c) oily paper (d) clear glass
  7. 7.⚖️ 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 measure it (c) we keep it the same
  8. 8.🕰️ What is a sundial used for? (a) making rainbows (b) telling the time (c) measuring rain (d) weighing things
  9. 9.🧺 Which of these is needed for the shadow clock? (a) a balloon (b) yeast (c) a battery cell (d) a straight stick
  10. 10.🔦 Which of these is transparent? (a) a wooden board (b) frosted glass (c) clear glass (d) oily paper
  11. 11.🔦 Is a book opaque, translucent or transparent? (a) translucent (b) opaque (c) transparent
  12. 12.⚖️ Fair test — how does the shadow of a stick change through the day? Which of these is what we measure? (a) the same stick (b) the stick kept upright (c) the time of day (d) shadow length
  13. 13.🧺 Three of these are needed for the shadow clock. Which one is NOT needed? (a) a clock to check (b) a straight stick (c) a balloon (d) chalk to mark shadows
  14. 14.🔍 Which is the odd one out? (a) a book (b) a brick (c) your hand (d) butter paper
  15. 15.🧺 Which of these is needed for the shadow clock? (a) a balloon (b) a clock to check (c) turmeric powder (d) yeast
  16. 16.⚖️ 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
  17. 17.True or false: butter paper is translucent. (a) True (b) False
  18. 18.📘 Why does a shadow form? (a) light bends round it (b) the object is cold (c) an object blocks light (d) the ground is dark
  19. 19.🧺 Do we need turmeric powder for the shadow clock? (a) needed (b) not needed
  20. 20.🛟 While watching shadows outdoors, what must you never do? (a) look straight at the Sun (b) wear a cap (c) sit in the shade (d) mark with chalk
  21. 21.🔦 Is your hand opaque, translucent or transparent? (a) transparent (b) translucent (c) opaque
  22. 22.True or false: a battery cell is needed for the shadow clock. (a) True (b) False
  23. 23.🧺 Which of these is needed for the shadow clock? (a) a mirror (b) chalk to mark shadows (c) yeast (d) turmeric powder
  24. 24.🧺 Which of these is not needed for the shadow clock? (a) a straight stick (b) a mirror (c) a sunny open place (d) chalk to mark shadows
  25. 25.🔦 Which of these is opaque? (a) oily paper (b) butter paper (c) clear plastic film (d) a wooden board
  26. 26.🧺 Do we need a balloon for the shadow clock? (a) needed (b) not needed
  27. 27.🧺 Which of these is needed for the shadow clock? (a) a battery cell (b) yeast (c) a sunny open place (d) a magnet
  28. 28.🔦 Which of these is transparent? (a) a brick (b) a wooden board (c) clear plastic film (d) tissue paper
  29. 29.🧺 Do we need a straight stick for the shadow clock? (a) not needed (b) needed
  30. 30.⚖️ Fair test — how does the shadow of a stick change through the day? True or false: the stick kept upright is the one thing we change. (a) True (b) False
  31. 31.🔦 Is a wooden board opaque, translucent or transparent? (a) translucent (b) opaque (c) transparent
  32. 32.⚖️ Fair test — how does the shadow of a stick change through the day? True or false: the time of day is kept the same. (a) False (b) True
  33. 33.🌅 In the morning the Sun is in the east. Which way does a shadow point? (a) up (b) west (c) east (d) north
  34. 34.True or false: yeast is not needed for the shadow clock. (a) False (b) True
  35. 35.🌍 Why does the stick’s shadow move during the day? (a) Earth keeps spinning (b) the stick grows (c) the stick walks (d) the ground slides
  36. 36.🔦 Is frosted glass opaque, translucent or transparent? (a) transparent (b) translucent (c) opaque
  37. 37.⚖️ Fair test — how does the shadow of a stick change through the day? True or false: shadow length is the one thing we change. (a) True (b) False
  38. 38.🧺 Three of these are needed for the shadow clock. Which one is NOT needed? (a) a straight stick (b) chalk to mark shadows (c) turmeric powder (d) a sunny open place
  39. 39.True or false: oily paper is opaque. (a) True (b) False
  40. 40.True or false: a magnet is needed for the shadow clock. (a) True (b) False

Answer key

  1. True
  2. True
  3. a magnet
  4. False
  5. bigger
  6. your hand
  7. we keep it the same
  8. telling the time
  9. a straight stick
  10. clear glass
  11. opaque
  12. shadow length
  13. a balloon
  14. butter paper
  15. a clock to check
  16. we change it
  17. True
  18. an object blocks light
  19. not needed
  20. look straight at the Sun
  21. opaque
  22. False
  23. chalk to mark shadows
  24. a mirror
  25. a wooden board
  26. not needed
  27. a sunny open place
  28. clear plastic film
  29. needed
  30. False
  31. opaque
  32. False
  33. west
  34. True
  35. Earth keeps spinning
  36. translucent
  37. False
  38. turmeric powder
  39. False
  40. False

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