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Shadow and Sundial Experiment Worksheet

Science experiments lesson 27: Shadows and a sundial · Set 355 · 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 sunny open place is needed for the shadow clock. (a) False (b) True
  2. 2.🔮 Predict: on a fully cloudy day, the sundial ___. (a) runs faster (b) works better (c) shows two times (d) does not work well
  3. 3.🧺 Which of these is needed for the shadow clock? (a) turmeric powder (b) a magnet (c) a mirror (d) a sunny open place
  4. 4.🔦 Is air opaque, translucent or transparent? (a) opaque (b) translucent (c) transparent
  5. 5.📘 Why does a shadow form? (a) the ground is dark (b) light bends round it (c) the object is cold (d) an object blocks light
  6. 6.⚖️ 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 time of day (c) the stick kept upright (d) the same spot
  7. 7.⚖️ 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
  8. 8.🔍 Which is the odd one out? (a) a book (b) a wooden board (c) a steel plate (d) air
  9. 9.🔍 Which is the odd one out? (a) tissue paper (b) a steel plate (c) butter paper (d) oily paper
  10. 10.🧺 Which of these is needed for the shadow clock? (a) a straight stick (b) a balloon (c) turmeric powder (d) a magnet
  11. 11.True or false: a book is opaque. (a) False (b) True
  12. 12.🌍 Why does the stick’s shadow move during the day? (a) Earth keeps spinning (b) the ground slides (c) the stick walks (d) the stick grows
  13. 13.🔮 Predict: you move a torch closer to your hand. The shadow on the wall gets ___. (a) smaller (b) bigger (c) brighter (d) coloured
  14. 14.🔍 Which is the odd one out? (a) a wooden board (b) frosted glass (c) butter paper (d) tissue paper
  15. 15.🔦 Which of these is transparent? (a) a steel plate (b) your hand (c) tissue paper (d) clear glass
  16. 16.🛟 While watching shadows outdoors, what must you never do? (a) look straight at the Sun (b) wear a cap (c) mark with chalk (d) sit in the shade
  17. 17.🔮 Predict: the Sun is low in the evening sky. The stick’s shadow is ___. (a) long (b) round (c) missing (d) short
  18. 18.True or false: a battery cell is needed for the shadow clock. (a) False (b) True
  19. 19.🔦 Is frosted glass opaque, translucent or transparent? (a) translucent (b) opaque (c) transparent
  20. 20.🔍 Which is the odd one out? (a) clear glass (b) oily paper (c) air (d) clean water
  21. 21.🔦 Which of these is translucent? (a) a book (b) a steel plate (c) oily paper (d) clean water
  22. 22.⚖️ Fair test — how does the shadow of a stick change through the day? True or false: the same spot is what we measure. (a) False (b) True
  23. 23.⚖️ 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
  24. 24.🧺 Three of these are needed for the shadow clock. Which one is NOT needed? (a) a balloon (b) chalk to mark shadows (c) a sunny open place (d) a clock to check
  25. 25.⚖️ Fair test — how does the shadow of a stick change through the day? Which of these is kept the same? (a) shadow length (b) the time of day (c) the same stick
  26. 26.🧺 Three of these are needed for the shadow clock. Which one is NOT needed? (a) a straight stick (b) a battery cell (c) a sunny open place (d) a clock to check
  27. 27.True or false: air is transparent. (a) False (b) True
  28. 28.⚖️ 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
  29. 29.🔦 Which of these is opaque? (a) air (b) butter paper (c) clean water (d) a book
  30. 30.⚖️ Fair test — how does the shadow of a stick change through the day? True or false: the same stick is what we measure. (a) True (b) False
  31. 31.🧺 Do we need yeast for the shadow clock? (a) not needed (b) needed
  32. 32.True or false: clear plastic film is transparent. (a) True (b) False
  33. 33.🔍 Which is the odd one out? (a) a book (b) a brick (c) a steel plate (d) tissue paper
  34. 34.🔦 Is a book opaque, translucent or transparent? (a) transparent (b) translucent (c) opaque
  35. 35.🔦 Which of these is transparent? (a) butter paper (b) oily paper (c) clean water (d) a wooden board
  36. 36.True or false: a book is transparent. (a) True (b) False
  37. 37.🔍 Which is the odd one out? (a) your hand (b) butter paper (c) a wooden board (d) a brick
  38. 38.🧺 Do we need turmeric powder for the shadow clock? (a) needed (b) not needed
  39. 39.🧺 Which of these is needed for the shadow clock? (a) a mirror (b) a magnet (c) a battery cell (d) chalk to mark shadows
  40. 40.⚖️ 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

Answer key

  1. True
  2. does not work well
  3. a sunny open place
  4. transparent
  5. an object blocks light
  6. the time of day
  7. we measure it
  8. air
  9. a steel plate
  10. a straight stick
  11. True
  12. Earth keeps spinning
  13. bigger
  14. a wooden board
  15. clear glass
  16. look straight at the Sun
  17. long
  18. False
  19. translucent
  20. oily paper
  21. oily paper
  22. False
  23. we keep it the same
  24. a balloon
  25. the same stick
  26. a battery cell
  27. True
  28. shadow length
  29. a book
  30. False
  31. not needed
  32. True
  33. tissue paper
  34. opaque
  35. clean water
  36. False
  37. butter paper
  38. not needed
  39. chalk to mark shadows
  40. we keep it the same

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