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Shadow and Sundial Experiment Worksheet

Science experiments lesson 27: Shadows and a sundial · Set 996 · 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 stick kept upright”? (a) we measure it (b) we change it (c) we keep it the same
  2. 2.⚖️ 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
  3. 3.🧺 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 straight stick (d) turmeric powder
  4. 4.🛟 What should you wear for a long time in the hot sun? (a) a woollen sweater (b) a cap or hat (c) a raincoat (d) nothing on your head
  5. 5.🧺 Do we need a mirror for the shadow clock? (a) not needed (b) needed
  6. 6.🧺 Three of these are needed for the shadow clock. Which one is NOT needed? (a) a clock to check (b) a magnet (c) a sunny open place (d) chalk to mark shadows
  7. 7.True or false: a clock to check is not needed for the shadow clock. (a) False (b) True
  8. 8.🔦 Is your hand opaque, translucent or transparent? (a) opaque (b) translucent (c) transparent
  9. 9.🧺 Do we need a battery cell for the shadow clock? (a) needed (b) not needed
  10. 10.⚖️ 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
  11. 11.🔮 Predict: on a fully cloudy day, the sundial ___. (a) runs faster (b) works better (c) does not work well (d) shows two times
  12. 12.⚖️ Fair test — how does the shadow of a stick change through the day? Which of these is the one thing we change? (a) the same spot (b) the time of day (c) the stick kept upright (d) shadow length
  13. 13.🧺 Do we need turmeric powder for the shadow clock? (a) needed (b) not needed
  14. 14.🔍 Which is the odd one out? (a) frosted glass (b) a wooden board (c) oily paper (d) butter paper
  15. 15.⚖️ Fair test — how does the shadow of a stick change through the day? Which of these is kept the same? (a) the same spot (b) the time of day (c) shadow length
  16. 16.True or false: a steel plate is translucent. (a) True (b) False
  17. 17.🧺 Which of these is needed for the shadow clock? (a) turmeric powder (b) yeast (c) a clock to check (d) a battery cell
  18. 18.True or false: clear glass is transparent. (a) True (b) False
  19. 19.⚖️ Fair test — how does the shadow of a stick change through the day? What do we do with “the time of day”? (a) we measure it (b) we change it (c) we keep it the same
  20. 20.True or false: a brick is opaque. (a) False (b) True
  21. 21.⚖️ 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
  22. 22.📘 Why does a shadow form? (a) an object blocks light (b) the object is cold (c) the ground is dark (d) light bends round it
  23. 23.True or false: a battery cell is needed for the shadow clock. (a) True (b) False
  24. 24.🕰️ What is a sundial used for? (a) measuring rain (b) making rainbows (c) telling the time (d) weighing things
  25. 25.🔍 Which is the odd one out? (a) clear plastic film (b) air (c) clear glass (d) a book
  26. 26.🧺 Do we need a clock to check for the shadow clock? (a) needed (b) not needed
  27. 27.🔦 Which of these is transparent? (a) a steel plate (b) tissue paper (c) clean water (d) your hand
  28. 28.🛟 While watching shadows outdoors, what must you never do? (a) look straight at the Sun (b) mark with chalk (c) sit in the shade (d) wear a cap
  29. 29.True or false: tissue paper is opaque. (a) True (b) False
  30. 30.🧺 Do we need a balloon for the shadow clock? (a) needed (b) not needed
  31. 31.⚖️ Fair test — how does the shadow of a stick change through the day? True or false: the time of day is what we measure. (a) False (b) True
  32. 32.🔍 Which is the odd one out? (a) a book (b) a brick (c) your hand (d) tissue paper
  33. 33.⚖️ Fair test — how does the shadow of a stick change through the day? Which of these is kept the same? (a) the same stick (b) shadow length (c) the time of day
  34. 34.True or false: a straight stick is needed for the shadow clock. (a) False (b) True
  35. 35.🧺 Which of these is not needed for the shadow clock? (a) a magnet (b) chalk to mark shadows (c) a clock to check (d) a straight stick
  36. 36.🔮 Predict: the Sun is low in the evening sky. The stick’s shadow is ___. (a) round (b) long (c) missing (d) short
  37. 37.🧺 Which of these is needed for the shadow clock? (a) yeast (b) a magnet (c) a mirror (d) a straight stick
  38. 38.🧺 Do we need a sunny open place for the shadow clock? (a) not needed (b) needed
  39. 39.⚖️ 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
  40. 40.True or false: a steel plate is opaque. (a) False (b) True

Answer key

  1. we keep it the same
  2. we keep it the same
  3. turmeric powder
  4. a cap or hat
  5. not needed
  6. a magnet
  7. False
  8. opaque
  9. not needed
  10. True
  11. does not work well
  12. the time of day
  13. not needed
  14. a wooden board
  15. the same spot
  16. False
  17. a clock to check
  18. True
  19. we change it
  20. True
  21. False
  22. an object blocks light
  23. False
  24. telling the time
  25. a book
  26. needed
  27. clean water
  28. look straight at the Sun
  29. False
  30. not needed
  31. False
  32. tissue paper
  33. the same stick
  34. True
  35. a magnet
  36. long
  37. a straight stick
  38. needed
  39. True
  40. True

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