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Shadow and Sundial Experiment Worksheet

Science experiments lesson 27: Shadows and a sundial · Set 670 · 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.🔮 Predict: on a fully cloudy day, the sundial ___. (a) does not work well (b) shows two times (c) works better (d) runs faster
  2. 2.⚖️ 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
  3. 3.🔦 Is tissue paper opaque, translucent or transparent? (a) opaque (b) translucent (c) transparent
  4. 4.🔦 Is frosted glass opaque, translucent or transparent? (a) transparent (b) translucent (c) opaque
  5. 5.🧺 Three of these are needed for the shadow clock. Which one is NOT needed? (a) chalk to mark shadows (b) a clock to check (c) a magnet (d) a sunny open place
  6. 6.⚖️ Fair test — how does the shadow of a stick change through the day? What do we do with “shadow length”? (a) we keep it the same (b) we change it (c) we measure it
  7. 7.🧺 Which of these is needed for the shadow clock? (a) a magnet (b) a battery cell (c) a balloon (d) a straight stick
  8. 8.🕰️ What is a sundial used for? (a) making rainbows (b) telling the time (c) weighing things (d) measuring rain
  9. 9.🔮 Predict: the Sun is low in the evening sky. The stick’s shadow is ___. (a) missing (b) short (c) round (d) long
  10. 10.🧺 Three of these are needed for the shadow clock. Which one is NOT needed? (a) a clock to check (b) a battery cell (c) a straight stick (d) chalk to mark shadows
  11. 11.🧺 Which of these is needed for the shadow clock? (a) a battery cell (b) turmeric powder (c) a sunny open place (d) a magnet
  12. 12.🌅 In the morning the Sun is in the east. Which way does a shadow point? (a) west (b) north (c) up (d) east
  13. 13.True or false: your hand is transparent. (a) False (b) True
  14. 14.True or false: air is translucent. (a) False (b) True
  15. 15.True or false: a magnet is needed for the shadow clock. (a) True (b) False
  16. 16.True or false: a balloon is needed for the shadow clock. (a) False (b) True
  17. 17.🔦 Is butter paper opaque, translucent or transparent? (a) opaque (b) translucent (c) transparent
  18. 18.⚖️ 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 same spot (c) the time of day (d) shadow length
  19. 19.🧺 Which of these is not needed for the shadow clock? (a) a straight stick (b) a sunny open place (c) chalk to mark shadows (d) turmeric powder
  20. 20.🔦 Which of these is opaque? (a) butter paper (b) frosted glass (c) a brick (d) tissue paper
  21. 21.🧺 Which of these is not needed for the shadow clock? (a) a clock to check (b) chalk to mark shadows (c) a sunny open place (d) a balloon
  22. 22.🔦 Which of these is translucent? (a) air (b) a wooden board (c) frosted glass (d) your hand
  23. 23.🔍 Which is the odd one out? (a) clear glass (b) clear plastic film (c) a steel plate (d) air
  24. 24.🧺 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) chalk to mark shadows (d) yeast
  25. 25.⚖️ Fair test — how does the shadow of a stick change through the day? True or false: the time of day is the one thing we change. (a) True (b) False
  26. 26.🧺 Three of these are needed for the shadow clock. Which one is NOT needed? (a) a balloon (b) a clock to check (c) chalk to mark shadows (d) a straight stick
  27. 27.🧺 Three of these are needed for the shadow clock. Which one is NOT needed? (a) a clock to check (b) turmeric powder (c) a straight stick (d) chalk to mark shadows
  28. 28.⚖️ Fair test — how does the shadow of a stick change through the day? Which of these is what we measure? (a) the stick kept upright (b) the same spot (c) shadow length (d) the time of day
  29. 29.🛟 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
  30. 30.🔍 Which is the odd one out? (a) a wooden board (b) a steel plate (c) frosted glass (d) a brick
  31. 31.⚖️ 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
  32. 32.True or false: a brick is translucent. (a) True (b) False
  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 measure it (b) we keep it the same (c) we change it
  34. 34.🔍 Which is the odd one out? (a) clear glass (b) oily paper (c) clean water (d) air
  35. 35.🔍 Which is the odd one out? (a) clear glass (b) clear plastic film (c) a wooden board (d) air
  36. 36.🔍 Which is the odd one out? (a) clean water (b) a brick (c) clear plastic film (d) air
  37. 37.🛟 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
  38. 38.True or false: a mirror is needed for the shadow clock. (a) True (b) False
  39. 39.True or false: yeast is needed for the shadow clock. (a) False (b) True
  40. 40.🔦 Is clear plastic film opaque, translucent or transparent? (a) translucent (b) opaque (c) transparent

Answer key

  1. does not work well
  2. False
  3. translucent
  4. translucent
  5. a magnet
  6. we measure it
  7. a straight stick
  8. telling the time
  9. long
  10. a battery cell
  11. a sunny open place
  12. west
  13. False
  14. False
  15. False
  16. False
  17. translucent
  18. the time of day
  19. turmeric powder
  20. a brick
  21. a balloon
  22. frosted glass
  23. a steel plate
  24. yeast
  25. True
  26. a balloon
  27. turmeric powder
  28. shadow length
  29. a cap or hat
  30. frosted glass
  31. True
  32. False
  33. we keep it the same
  34. oily paper
  35. a wooden board
  36. a brick
  37. look straight at the Sun
  38. False
  39. False
  40. transparent

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