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Shadow and Sundial Experiment Worksheet

Science experiments lesson 27: Shadows and a sundial · Set 498 · 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.🧺 Do we need a battery cell for the shadow clock? (a) not needed (b) needed
  2. 2.🔮 Predict: on a fully cloudy day, the sundial ___. (a) runs faster (b) does not work well (c) shows two times (d) works better
  3. 3.🧺 Which of these is not needed for the shadow clock? (a) a sunny open place (b) a clock to check (c) a magnet (d) a straight stick
  4. 4.True or false: a brick is opaque. (a) False (b) True
  5. 5.🔦 Is a wooden board opaque, translucent or transparent? (a) translucent (b) transparent (c) opaque
  6. 6.True or false: a battery cell is needed for the shadow clock. (a) False (b) True
  7. 7.🛟 While watching shadows outdoors, what must you never do? (a) sit in the shade (b) wear a cap (c) look straight at the Sun (d) mark with chalk
  8. 8.⚖️ Fair test — how does the shadow of a stick change through the day? True or false: the stick kept upright is kept the same. (a) True (b) False
  9. 9.True or false: butter paper is opaque. (a) True (b) False
  10. 10.🛟 What should you wear for a long time in the hot sun? (a) a cap or hat (b) nothing on your head (c) a woollen sweater (d) a raincoat
  11. 11.🔮 Predict: the Sun is low in the evening sky. The stick’s shadow is ___. (a) missing (b) round (c) short (d) long
  12. 12.🧺 Which of these is needed for the shadow clock? (a) a sunny open place (b) a balloon (c) a mirror (d) a magnet
  13. 13.🔍 Which is the odd one out? (a) butter paper (b) clear plastic film (c) clear glass (d) air
  14. 14.True or false: tissue paper is translucent. (a) False (b) True
  15. 15.True or false: a battery cell is not needed for the shadow clock. (a) True (b) False
  16. 16.⚖️ 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 stick kept upright (c) the same stick (d) shadow length
  17. 17.🔦 Is butter paper opaque, translucent or transparent? (a) transparent (b) opaque (c) translucent
  18. 18.True or false: a sunny open place is not needed for the shadow clock. (a) False (b) True
  19. 19.🔦 Which of these is transparent? (a) tissue paper (b) clear glass (c) a brick (d) oily paper
  20. 20.🕰️ What is a sundial used for? (a) weighing things (b) making rainbows (c) telling the time (d) measuring rain
  21. 21.🔦 Is a steel plate opaque, translucent or transparent? (a) transparent (b) translucent (c) opaque
  22. 22.True or false: chalk to mark shadows is not needed for the shadow clock. (a) True (b) False
  23. 23.🧺 Three of these are needed for the shadow clock. Which one is NOT needed? (a) a clock to check (b) a sunny open place (c) a mirror (d) a straight stick
  24. 24.🧺 Which of these is not needed for the shadow clock? (a) yeast (b) a clock to check (c) a straight stick (d) a sunny open place
  25. 25.🔍 Which is the odd one out? (a) a wooden board (b) butter paper (c) oily paper (d) tissue paper
  26. 26.📘 Why does a shadow form? (a) light bends round it (b) an object blocks light (c) the ground is dark (d) the object is cold
  27. 27.🔦 Is clear glass opaque, translucent or transparent? (a) translucent (b) transparent (c) opaque
  28. 28.⚖️ Fair test — how does the shadow of a stick change through the day? True or false: shadow length is what we measure. (a) False (b) True
  29. 29.True or false: a straight stick is needed for the shadow clock. (a) False (b) True
  30. 30.🌍 Why does the stick’s shadow move during the day? (a) the stick walks (b) the stick grows (c) the ground slides (d) Earth keeps spinning
  31. 31.🔦 Which of these is transparent? (a) air (b) your hand (c) a brick (d) a book
  32. 32.True or false: clear plastic film is transparent. (a) False (b) True
  33. 33.⚖️ Fair test — how does the shadow of a stick change through the day? What do we do with “the stick kept upright”? (a) we keep it the same (b) we change it (c) we measure it
  34. 34.🧺 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) turmeric powder
  35. 35.🔦 Which of these is opaque? (a) air (b) clear glass (c) frosted glass (d) a wooden board
  36. 36.🔍 Which is the odd one out? (a) a brick (b) a book (c) a steel plate (d) clean water
  37. 37.⚖️ Fair test — how does the shadow of a stick change through the day? True or false: the same stick is what we measure. (a) False (b) True
  38. 38.🧺 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 sunny open place (d) chalk to mark shadows
  39. 39.🧺 Which of these is not needed for the shadow clock? (a) a battery cell (b) chalk to mark shadows (c) a clock to check (d) a straight stick
  40. 40.🧺 Which of these is needed for the shadow clock? (a) yeast (b) a battery cell (c) a clock to check (d) a mirror

Answer key

  1. not needed
  2. does not work well
  3. a magnet
  4. True
  5. opaque
  6. False
  7. look straight at the Sun
  8. True
  9. False
  10. a cap or hat
  11. long
  12. a sunny open place
  13. butter paper
  14. True
  15. True
  16. shadow length
  17. translucent
  18. False
  19. clear glass
  20. telling the time
  21. opaque
  22. False
  23. a mirror
  24. yeast
  25. a wooden board
  26. an object blocks light
  27. transparent
  28. True
  29. True
  30. Earth keeps spinning
  31. air
  32. True
  33. we keep it the same
  34. turmeric powder
  35. a wooden board
  36. clean water
  37. False
  38. a battery cell
  39. a battery cell
  40. a clock to check

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