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Shadow and Sundial Experiment Worksheet

Science experiments lesson 27: Shadows and a sundial · Set 909 · 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.⚖️ 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 change it (c) we measure it
  2. 2.🔦 Is butter paper opaque, translucent or transparent? (a) translucent (b) transparent (c) opaque
  3. 3.🧺 Three of these are needed for the shadow clock. Which one is NOT needed? (a) a clock to check (b) a straight stick (c) yeast (d) a sunny open place
  4. 4.True or false: yeast is not needed for the shadow clock. (a) False (b) True
  5. 5.🔦 Is a book opaque, translucent or transparent? (a) opaque (b) transparent (c) translucent
  6. 6.🧺 Do we need chalk to mark shadows for the shadow clock? (a) not needed (b) needed
  7. 7.🧺 Which of these is not needed for the shadow clock? (a) a straight stick (b) chalk to mark shadows (c) a battery cell (d) a sunny open place
  8. 8.🌅 In the morning the Sun is in the east. Which way does a shadow point? (a) west (b) up (c) east (d) north
  9. 9.🔮 Predict: on a fully cloudy day, the sundial ___. (a) runs faster (b) does not work well (c) shows two times (d) works better
  10. 10.🧺 Which of these is not needed for the shadow clock? (a) a straight stick (b) chalk to mark shadows (c) a sunny open place (d) a magnet
  11. 11.⚖️ Fair test — how does the shadow of a stick change through the day? What do we do with “shadow length”? (a) we keep it the same (b) we measure it (c) we change it
  12. 12.🔦 Is clear plastic film opaque, translucent or transparent? (a) translucent (b) transparent (c) opaque
  13. 13.⚖️ Fair test — how does the shadow of a stick change through the day? What do we do with “the same spot”? (a) we change it (b) we measure it (c) we keep it the same
  14. 14.⚖️ Fair test — how does the shadow of a stick change through the day? What do we do with “the stick kept upright”? (a) we measure it (b) we keep it the same (c) we change it
  15. 15.🔦 Which of these is transparent? (a) a wooden board (b) clear glass (c) a steel plate (d) oily paper
  16. 16.🧺 Do we need a clock to check for the shadow clock? (a) needed (b) not needed
  17. 17.True or false: a mirror is not needed for the shadow clock. (a) True (b) False
  18. 18.⚖️ 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
  19. 19.📘 Why does a shadow form? (a) the object is cold (b) an object blocks light (c) light bends round it (d) the ground is dark
  20. 20.🧺 Three of these are needed for the shadow clock. Which one is NOT needed? (a) a straight stick (b) a sunny open place (c) chalk to mark shadows (d) a magnet
  21. 21.🔦 Which of these is opaque? (a) clear plastic film (b) a steel plate (c) butter paper (d) tissue paper
  22. 22.🧺 Do we need a battery cell for the shadow clock? (a) needed (b) not needed
  23. 23.True or false: chalk to mark shadows is needed for the shadow clock. (a) False (b) True
  24. 24.🔦 Which of these is opaque? (a) frosted glass (b) oily paper (c) your hand (d) air
  25. 25.⚖️ Fair test — how does the shadow of a stick change through the day? True or false: shadow length is what we measure. (a) True (b) False
  26. 26.True or false: a wooden board is opaque. (a) True (b) False
  27. 27.🔦 Which of these is translucent? (a) a steel plate (b) a book (c) a brick (d) tissue paper
  28. 28.🧺 Which of these is not needed for the shadow clock? (a) chalk to mark shadows (b) a straight stick (c) a clock to check (d) a balloon
  29. 29.True or false: a battery cell is not needed for the shadow clock. (a) True (b) False
  30. 30.🔦 Is a wooden board opaque, translucent or transparent? (a) transparent (b) translucent (c) opaque
  31. 31.True or false: a clock to check is needed for the shadow clock. (a) True (b) False
  32. 32.🧺 Do we need yeast for the shadow clock? (a) not needed (b) needed
  33. 33.🧺 Do we need a mirror for the shadow clock? (a) needed (b) not needed
  34. 34.True or false: frosted glass is translucent. (a) False (b) True
  35. 35.True or false: clear plastic film is translucent. (a) False (b) True
  36. 36.⚖️ 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
  37. 37.⚖️ 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
  38. 38.⚖️ 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
  39. 39.🔮 Predict: you move a torch closer to your hand. The shadow on the wall gets ___. (a) brighter (b) smaller (c) coloured (d) bigger
  40. 40.⚖️ 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 measure it (c) we change it

Answer key

  1. we keep it the same
  2. translucent
  3. yeast
  4. True
  5. opaque
  6. needed
  7. a battery cell
  8. west
  9. does not work well
  10. a magnet
  11. we measure it
  12. transparent
  13. we keep it the same
  14. we keep it the same
  15. clear glass
  16. needed
  17. True
  18. True
  19. an object blocks light
  20. a magnet
  21. a steel plate
  22. not needed
  23. True
  24. your hand
  25. True
  26. True
  27. tissue paper
  28. a balloon
  29. True
  30. opaque
  31. True
  32. not needed
  33. not needed
  34. True
  35. False
  36. True
  37. the stick kept upright
  38. False
  39. bigger
  40. we change it

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