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Shadow and Sundial Experiment Worksheet

Science experiments lesson 27: Shadows and a sundial · Set 259 · 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.🔦 Is a steel plate opaque, translucent or transparent? (a) translucent (b) transparent (c) opaque
  2. 2.🔍 Which is the odd one out? (a) frosted glass (b) a brick (c) tissue paper (d) butter paper
  3. 3.⚖️ Fair test — how does the shadow of a stick change through the day? What do we do with “the same stick”? (a) we change it (b) we measure it (c) we keep it the same
  4. 4.True or false: turmeric powder is not needed for the shadow clock. (a) False (b) True
  5. 5.⚖️ 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
  6. 6.🧺 Three of these are needed for the shadow clock. Which one is NOT needed? (a) chalk to mark shadows (b) a straight stick (c) a sunny open place (d) a battery cell
  7. 7.True or false: a wooden board is opaque. (a) False (b) True
  8. 8.⚖️ 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 change it (c) we measure it
  9. 9.🧺 Which of these is needed for the shadow clock? (a) turmeric powder (b) a magnet (c) a mirror (d) a sunny open place
  10. 10.🧺 Do we need a straight stick for the shadow clock? (a) not needed (b) needed
  11. 11.🛟 While watching shadows outdoors, what must you never do? (a) mark with chalk (b) look straight at the Sun (c) wear a cap (d) sit in the shade
  12. 12.True or false: chalk to mark shadows is needed for the shadow clock. (a) False (b) True
  13. 13.⚖️ Fair test — how does the shadow of a stick change through the day? True or false: the same spot is the one thing we change. (a) True (b) False
  14. 14.🧺 Do we need turmeric powder for the shadow clock? (a) not needed (b) needed
  15. 15.🔮 Predict: the Sun is low in the evening sky. The stick’s shadow is ___. (a) round (b) long (c) missing (d) short
  16. 16.🔦 Is clear plastic film opaque, translucent or transparent? (a) opaque (b) transparent (c) translucent
  17. 17.🧺 Do we need a sunny open place for the shadow clock? (a) needed (b) not needed
  18. 18.🔦 Which of these is opaque? (a) clean water (b) a wooden board (c) clear plastic film (d) frosted glass
  19. 19.🧺 Which of these is not needed for the shadow clock? (a) a straight stick (b) a sunny open place (c) a magnet (d) chalk to mark shadows
  20. 20.🔮 Predict: on a fully cloudy day, the sundial ___. (a) runs faster (b) shows two times (c) works better (d) does not work well
  21. 21.🔦 Which of these is translucent? (a) clear glass (b) clear plastic film (c) a brick (d) butter paper
  22. 22.🧺 Which of these is needed for the shadow clock? (a) a battery cell (b) a balloon (c) a straight stick (d) a mirror
  23. 23.🔦 Which of these is opaque? (a) frosted glass (b) butter paper (c) a brick (d) air
  24. 24.True or false: yeast is needed for the shadow clock. (a) False (b) True
  25. 25.⚖️ 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
  26. 26.True or false: a sunny open place is not needed for the shadow clock. (a) False (b) True
  27. 27.True or false: chalk to mark shadows is not needed for the shadow clock. (a) True (b) False
  28. 28.True or false: a mirror is not needed for the shadow clock. (a) True (b) False
  29. 29.🔦 Is air opaque, translucent or transparent? (a) translucent (b) opaque (c) transparent
  30. 30.🔦 Which of these is translucent? (a) frosted glass (b) a book (c) clean water (d) air
  31. 31.🛟 What should you wear for a long time in the hot sun? (a) a woollen sweater (b) nothing on your head (c) a cap or hat (d) a raincoat
  32. 32.⚖️ 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 stick kept upright (c) the time of day
  33. 33.🧺 Do we need yeast for the shadow clock? (a) needed (b) not needed
  34. 34.🔍 Which is the odd one out? (a) clear plastic film (b) clear glass (c) tissue paper (d) clean water
  35. 35.🧺 Three of these are needed for the shadow clock. Which one is NOT needed? (a) a sunny open place (b) a magnet (c) a clock to check (d) chalk to mark shadows
  36. 36.🧺 Do we need a battery cell for the shadow clock? (a) not needed (b) needed
  37. 37.🔦 Which of these is transparent? (a) tissue paper (b) clear glass (c) oily paper (d) butter paper
  38. 38.🧺 Do we need chalk to mark shadows for the shadow clock? (a) needed (b) not needed
  39. 39.🌍 Why does the stick’s shadow move during the day? (a) the ground slides (b) Earth keeps spinning (c) the stick grows (d) the stick walks
  40. 40.🧺 Which of these is not needed for the shadow clock? (a) a sunny open place (b) a straight stick (c) turmeric powder (d) chalk to mark shadows

Answer key

  1. opaque
  2. a brick
  3. we keep it the same
  4. True
  5. False
  6. a battery cell
  7. True
  8. we change it
  9. a sunny open place
  10. needed
  11. look straight at the Sun
  12. True
  13. False
  14. not needed
  15. long
  16. transparent
  17. needed
  18. a wooden board
  19. a magnet
  20. does not work well
  21. butter paper
  22. a straight stick
  23. a brick
  24. False
  25. True
  26. False
  27. False
  28. True
  29. transparent
  30. frosted glass
  31. a cap or hat
  32. the stick kept upright
  33. not needed
  34. tissue paper
  35. a magnet
  36. not needed
  37. clear glass
  38. needed
  39. Earth keeps spinning
  40. turmeric powder

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