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Shadow and Sundial Experiment Worksheet

Science experiments lesson 27: Shadows and a sundial · Set 628 · 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.🔦 Which of these is opaque? (a) frosted glass (b) clear glass (c) a wooden board (d) oily paper
  2. 2.🛟 While watching shadows outdoors, what must you never do? (a) mark with chalk (b) wear a cap (c) look straight at the Sun (d) sit in the shade
  3. 3.🧺 Three of these are needed for the shadow clock. Which one is NOT needed? (a) a mirror (b) a straight stick (c) a sunny open place (d) a clock to check
  4. 4.🕰️ What is a sundial used for? (a) measuring rain (b) weighing things (c) telling the time (d) making rainbows
  5. 5.🛟 What should you wear for a long time in the hot sun? (a) nothing on your head (b) a woollen sweater (c) a cap or hat (d) a raincoat
  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.🔦 Is clear glass opaque, translucent or transparent? (a) transparent (b) translucent (c) opaque
  8. 8.🧺 Which of these is not needed for the shadow clock? (a) a straight stick (b) a clock to check (c) a mirror (d) a sunny open place
  9. 9.🧺 Three of these are needed for the shadow clock. Which one is NOT needed? (a) a clock to check (b) a straight stick (c) a battery cell (d) chalk to mark shadows
  10. 10.🔦 Is frosted glass opaque, translucent or transparent? (a) transparent (b) opaque (c) translucent
  11. 11.⚖️ 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) shadow length (d) the stick kept upright
  12. 12.⚖️ 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
  13. 13.🧺 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
  14. 14.🔦 Which of these is translucent? (a) frosted glass (b) a wooden board (c) clear glass (d) a brick
  15. 15.⚖️ 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
  16. 16.⚖️ 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 keep it the same (c) we measure it
  17. 17.🔮 Predict: on a fully cloudy day, the sundial ___. (a) does not work well (b) runs faster (c) works better (d) shows two times
  18. 18.🔦 Which of these is opaque? (a) tissue paper (b) air (c) clean water (d) a brick
  19. 19.⚖️ 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 measure it (c) we keep it the same
  20. 20.🔍 Which is the odd one out? (a) air (b) a steel plate (c) your hand (d) a book
  21. 21.🔍 Which is the odd one out? (a) frosted glass (b) tissue paper (c) a wooden board (d) butter paper
  22. 22.⚖️ 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
  23. 23.⚖️ Fair test — how does the shadow of a stick change through the day? True or false: the same stick is the one thing we change. (a) True (b) False
  24. 24.🧺 Which of these is needed for the shadow clock? (a) yeast (b) a magnet (c) a battery cell (d) a clock to check
  25. 25.⚖️ 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
  26. 26.True or false: a mirror is not needed for the shadow clock. (a) True (b) False
  27. 27.⚖️ Fair test — how does the shadow of a stick change through the day? Which of these is the one thing we change? (a) the stick kept upright (b) the time of day (c) the same stick (d) the same spot
  28. 28.True or false: a sunny open place is needed for the shadow clock. (a) False (b) True
  29. 29.🧺 Do we need a magnet for the shadow clock? (a) needed (b) not needed
  30. 30.⚖️ 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
  31. 31.🧺 Which of these is not needed for the shadow clock? (a) a sunny open place (b) a magnet (c) chalk to mark shadows (d) a straight stick
  32. 32.🧺 Do we need a balloon for the shadow clock? (a) needed (b) not needed
  33. 33.🔦 Is clear plastic film opaque, translucent or transparent? (a) opaque (b) translucent (c) transparent
  34. 34.True or false: a brick is opaque. (a) True (b) False
  35. 35.🧺 Three of these are needed for the shadow clock. Which one is NOT needed? (a) a balloon (b) a clock to check (c) a straight stick (d) a sunny open place
  36. 36.⚖️ 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 spot
  37. 37.⚖️ 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
  38. 38.🔦 Which of these is transparent? (a) a book (b) frosted glass (c) oily paper (d) clean water
  39. 39.⚖️ Fair test — how does the shadow of a stick change through the day? What do we do with “the time of day”? (a) we change it (b) we keep it the same (c) we measure it
  40. 40.🔦 Which of these is transparent? (a) a book (b) clear plastic film (c) frosted glass (d) tissue paper

Answer key

  1. a wooden board
  2. look straight at the Sun
  3. a mirror
  4. telling the time
  5. a cap or hat
  6. a magnet
  7. transparent
  8. a mirror
  9. a battery cell
  10. translucent
  11. shadow length
  12. we measure it
  13. turmeric powder
  14. frosted glass
  15. True
  16. we keep it the same
  17. does not work well
  18. a brick
  19. we keep it the same
  20. air
  21. a wooden board
  22. we keep it the same
  23. False
  24. a clock to check
  25. False
  26. True
  27. the time of day
  28. True
  29. not needed
  30. False
  31. a magnet
  32. not needed
  33. transparent
  34. True
  35. a balloon
  36. the same spot
  37. False
  38. clean water
  39. we change it
  40. clear plastic film

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