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Shadow and Sundial Experiment Worksheet

Science experiments lesson 27: Shadows and a sundial · Set 965 · 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.🧺 Three of these are needed for the shadow clock. Which one is NOT needed? (a) a straight stick (b) a clock to check (c) chalk to mark shadows (d) a mirror
  2. 2.🛟 While watching shadows outdoors, what must you never do? (a) mark with chalk (b) sit in the shade (c) wear a cap (d) look straight at the Sun
  3. 3.True or false: a wooden board is transparent. (a) True (b) False
  4. 4.⚖️ 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 keep it the same (c) we measure it
  5. 5.📘 Why does a shadow form? (a) the ground is dark (b) an object blocks light (c) the object is cold (d) light bends round it
  6. 6.🧺 Three of these are needed for the shadow clock. Which one is NOT needed? (a) a clock to check (b) turmeric powder (c) chalk to mark shadows (d) a straight stick
  7. 7.True or false: your hand is transparent. (a) True (b) False
  8. 8.True or false: a steel plate is translucent. (a) True (b) False
  9. 9.🧺 Do we need a straight stick for the shadow clock? (a) needed (b) not needed
  10. 10.🔮 Predict: you move a torch closer to your hand. The shadow on the wall gets ___. (a) brighter (b) coloured (c) smaller (d) bigger
  11. 11.True or false: a mirror is needed for the shadow clock. (a) True (b) False
  12. 12.🔦 Which of these is translucent? (a) a book (b) air (c) oily paper (d) a brick
  13. 13.🔦 Which of these is transparent? (a) air (b) your hand (c) frosted glass (d) a brick
  14. 14.🧺 Which of these is needed for the shadow clock? (a) a balloon (b) a mirror (c) a clock to check (d) turmeric powder
  15. 15.True or false: frosted glass is opaque. (a) False (b) True
  16. 16.⚖️ 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) the time of day (c) shadow length (d) the same stick
  17. 17.True or false: a brick is transparent. (a) True (b) False
  18. 18.🔦 Which of these is transparent? (a) a wooden board (b) butter paper (c) oily paper (d) clear plastic film
  19. 19.🧺 Do we need a magnet for the shadow clock? (a) needed (b) not needed
  20. 20.🕰️ What is a sundial used for? (a) weighing things (b) measuring rain (c) making rainbows (d) telling the time
  21. 21.🔦 Which of these is opaque? (a) a wooden board (b) oily paper (c) clear plastic film (d) tissue paper
  22. 22.⚖️ Fair test — how does the shadow of a stick change through the day? Which of these is what we measure? (a) the same spot (b) the time of day (c) the same stick (d) shadow length
  23. 23.🌍 Why does the stick’s shadow move during the day? (a) the stick grows (b) the ground slides (c) the stick walks (d) Earth keeps spinning
  24. 24.True or false: a balloon is not needed for the shadow clock. (a) True (b) False
  25. 25.True or false: chalk to mark shadows is not needed for the shadow clock. (a) False (b) True
  26. 26.⚖️ Fair test — how does the shadow of a stick change through the day? Which of these is kept the same? (a) the same spot (b) the time of day (c) shadow length
  27. 27.🔦 Is a steel plate opaque, translucent or transparent? (a) transparent (b) translucent (c) opaque
  28. 28.🧺 Which of these is needed for the shadow clock? (a) a battery cell (b) yeast (c) a magnet (d) chalk to mark shadows
  29. 29.🧺 Three of these are needed for the shadow clock. Which one is NOT needed? (a) a straight stick (b) a balloon (c) a sunny open place (d) a clock to check
  30. 30.True or false: clean water is transparent. (a) True (b) False
  31. 31.🧺 Which of these is not needed for the shadow clock? (a) turmeric powder (b) a clock to check (c) a sunny open place (d) chalk to mark shadows
  32. 32.🔦 Which of these is opaque? (a) clear plastic film (b) air (c) tissue paper (d) a book
  33. 33.True or false: tissue paper is opaque. (a) False (b) True
  34. 34.🌅 In the morning the Sun is in the east. Which way does a shadow point? (a) up (b) east (c) west (d) north
  35. 35.⚖️ 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 keep it the same (c) we change it
  36. 36.🔍 Which is the odd one out? (a) air (b) clear plastic film (c) frosted glass (d) clear glass
  37. 37.🔦 Which of these is translucent? (a) your hand (b) clean water (c) clear glass (d) frosted glass
  38. 38.🧺 Which of these is not needed for the shadow clock? (a) a straight stick (b) a sunny open place (c) a clock to check (d) yeast
  39. 39.⚖️ Fair test — how does the shadow of a stick change through the day? True or false: the same spot is what we measure. (a) True (b) False
  40. 40.True or false: a sunny open place is needed for the shadow clock. (a) False (b) True

Answer key

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

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