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Shadow and Sundial Experiment Worksheet

Science experiments lesson 27: Shadows and a sundial · Set 916 · 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? Which of these is what we measure? (a) the time of day (b) the same stick (c) the same spot (d) shadow length
  2. 2.🔮 Predict: on a fully cloudy day, the sundial ___. (a) shows two times (b) does not work well (c) runs faster (d) works better
  3. 3.🔦 Which of these is transparent? (a) a book (b) clear plastic film (c) a wooden board (d) a brick
  4. 4.🔦 Which of these is opaque? (a) clean water (b) a steel plate (c) clear glass (d) air
  5. 5.True or false: a balloon is needed for the shadow clock. (a) False (b) True
  6. 6.⚖️ Fair test — how does the shadow of a stick change through the day? True or false: shadow length is kept the same. (a) True (b) False
  7. 7.🔮 Predict: the Sun is low in the evening sky. The stick’s shadow is ___. (a) round (b) missing (c) long (d) short
  8. 8.⚖️ 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) True (b) False
  9. 9.🧺 Do we need chalk to mark shadows 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) bigger (d) smaller
  11. 11.🔦 Which of these is opaque? (a) butter paper (b) a book (c) tissue paper (d) clear plastic film
  12. 12.⚖️ Fair test — how does the shadow of a stick change through the day? True or false: the same spot is kept the same. (a) False (b) True
  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 keep it the same (c) we measure it
  14. 14.True or false: a brick is transparent. (a) False (b) True
  15. 15.🔍 Which is the odd one out? (a) your hand (b) butter paper (c) a book (d) a wooden board
  16. 16.🔍 Which is the odd one out? (a) a brick (b) tissue paper (c) your hand (d) a book
  17. 17.🔦 Is a wooden board opaque, translucent or transparent? (a) opaque (b) translucent (c) transparent
  18. 18.🌅 In the morning the Sun is in the east. Which way does a shadow point? (a) west (b) up (c) north (d) east
  19. 19.🔦 Is your hand opaque, translucent or transparent? (a) translucent (b) opaque (c) transparent
  20. 20.🧺 Three of these are needed for the shadow clock. Which one is NOT needed? (a) a clock to check (b) a balloon (c) a straight stick (d) chalk to mark shadows
  21. 21.🧺 Which of these is needed for the shadow clock? (a) a battery cell (b) a balloon (c) a straight stick (d) a mirror
  22. 22.🧺 Which of these is needed for the shadow clock? (a) yeast (b) a mirror (c) turmeric powder (d) a sunny open place
  23. 23.⚖️ 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) False (b) True
  24. 24.🔦 Which of these is translucent? (a) oily paper (b) a brick (c) a steel plate (d) a wooden board
  25. 25.True or false: yeast is not needed for the shadow clock. (a) True (b) False
  26. 26.True or false: a battery cell is not needed for the shadow clock. (a) False (b) True
  27. 27.🔦 Which of these is opaque? (a) air (b) clear plastic film (c) butter paper (d) your hand
  28. 28.🧺 Which of these is not needed for the shadow clock? (a) chalk to mark shadows (b) a battery cell (c) a sunny open place (d) a clock to check
  29. 29.🧺 Which of these is not needed for the shadow clock? (a) a clock to check (b) a magnet (c) a straight stick (d) chalk to mark shadows
  30. 30.🧺 Do we need a balloon for the shadow clock? (a) not needed (b) needed
  31. 31.🧺 Three of these are needed for the shadow clock. Which one is NOT needed? (a) a battery cell (b) a clock to check (c) a straight stick (d) chalk to mark shadows
  32. 32.🛟 While watching shadows outdoors, what must you never do? (a) sit in the shade (b) mark with chalk (c) look straight at the Sun (d) wear a cap
  33. 33.True or false: a battery cell is needed for the shadow clock. (a) True (b) False
  34. 34.🔦 Which of these is translucent? (a) frosted glass (b) a brick (c) clear plastic film (d) a steel plate
  35. 35.🔦 Is frosted glass opaque, translucent or transparent? (a) opaque (b) transparent (c) translucent
  36. 36.True or false: butter paper is opaque. (a) False (b) True
  37. 37.🧺 Three of these are needed for the shadow clock. Which one is NOT needed? (a) turmeric powder (b) a straight stick (c) chalk to mark shadows (d) a sunny open place
  38. 38.True or false: a mirror is needed for the shadow clock. (a) True (b) False
  39. 39.⚖️ 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 same spot
  40. 40.🔦 Which of these is transparent? (a) frosted glass (b) a wooden board (c) air (d) butter paper

Answer key

  1. shadow length
  2. does not work well
  3. clear plastic film
  4. a steel plate
  5. False
  6. False
  7. long
  8. False
  9. needed
  10. bigger
  11. a book
  12. True
  13. we keep it the same
  14. False
  15. butter paper
  16. tissue paper
  17. opaque
  18. west
  19. opaque
  20. a balloon
  21. a straight stick
  22. a sunny open place
  23. False
  24. oily paper
  25. True
  26. True
  27. your hand
  28. a battery cell
  29. a magnet
  30. not needed
  31. a battery cell
  32. look straight at the Sun
  33. False
  34. frosted glass
  35. translucent
  36. False
  37. turmeric powder
  38. False
  39. the same spot
  40. air

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