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Shadow and Sundial Experiment Worksheet

Science experiments lesson 27: Shadows and a sundial · Set 779 · 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.🛟 What should you wear for a long time in the hot sun? (a) a cap or hat (b) nothing on your head (c) a raincoat (d) a woollen sweater
  2. 2.🧺 Which of these is not needed for the shadow clock? (a) a straight stick (b) a battery cell (c) a sunny open place (d) chalk to mark shadows
  3. 3.🧺 Three of these are needed for the shadow clock. Which one is NOT needed? (a) a straight stick (b) a clock to check (c) turmeric powder (d) chalk to mark shadows
  4. 4.⚖️ 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 measure it (c) we change it
  5. 5.🔦 Which of these is opaque? (a) clear glass (b) clean water (c) tissue paper (d) a wooden board
  6. 6.🛟 While watching shadows outdoors, what must you never do? (a) look straight at the Sun (b) mark with chalk (c) wear a cap (d) sit in the shade
  7. 7.🧺 Do we need a magnet for the shadow clock? (a) needed (b) not needed
  8. 8.True or false: clear plastic film is opaque. (a) False (b) True
  9. 9.🔍 Which is the odd one out? (a) a book (b) a wooden board (c) frosted glass (d) a brick
  10. 10.🔍 Which is the odd one out? (a) clear plastic film (b) air (c) a wooden board (d) clear glass
  11. 11.True or false: your hand is opaque. (a) True (b) False
  12. 12.🔮 Predict: the Sun is low in the evening sky. The stick’s shadow is ___. (a) round (b) missing (c) short (d) long
  13. 13.⚖️ 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
  14. 14.⚖️ 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
  15. 15.⚖️ Fair test — how does the shadow of a stick change through the day? Which of these is kept the same? (a) the time of day (b) the same spot (c) shadow length
  16. 16.True or false: a clock to check is needed for the shadow clock. (a) False (b) True
  17. 17.🧺 Do we need a straight stick for the shadow clock? (a) not needed (b) needed
  18. 18.🕰️ What is a sundial used for? (a) making rainbows (b) measuring rain (c) weighing things (d) telling the time
  19. 19.🔦 Which of these is transparent? (a) frosted glass (b) a steel plate (c) your hand (d) clear glass
  20. 20.🔦 Is your hand opaque, translucent or transparent? (a) transparent (b) translucent (c) opaque
  21. 21.⚖️ 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) shadow length
  22. 22.True or false: a wooden board is opaque. (a) True (b) False
  23. 23.True or false: air is transparent. (a) True (b) False
  24. 24.🔮 Predict: on a fully cloudy day, the sundial ___. (a) works better (b) runs faster (c) does not work well (d) shows two times
  25. 25.🌞 When is a stick’s shadow the shortest? (a) around noon (b) early morning (c) at night (d) late evening
  26. 26.True or false: clear glass is translucent. (a) True (b) False
  27. 27.🔍 Which is the odd one out? (a) clear glass (b) clean water (c) clear plastic film (d) a brick
  28. 28.🧺 Do we need a mirror for the shadow clock? (a) needed (b) not needed
  29. 29.🔦 Is a wooden board opaque, translucent or transparent? (a) translucent (b) transparent (c) opaque
  30. 30.⚖️ 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 measure it (c) we change it
  31. 31.⚖️ Fair test — how does the shadow of a stick change through the day? True or false: the stick kept upright is what we measure. (a) False (b) True
  32. 32.True or false: clean water is transparent. (a) True (b) False
  33. 33.🔦 Is frosted glass opaque, translucent or transparent? (a) transparent (b) opaque (c) translucent
  34. 34.🧺 Which of these is not needed for the shadow clock? (a) a sunny open place (b) a clock to check (c) chalk to mark shadows (d) a magnet
  35. 35.🔦 Which of these is opaque? (a) clear plastic film (b) air (c) a steel plate (d) frosted glass
  36. 36.🧺 Which of these is not needed for the shadow clock? (a) yeast (b) chalk to mark shadows (c) a clock to check (d) a sunny open place
  37. 37.🔍 Which is the odd one out? (a) your hand (b) a wooden board (c) a steel plate (d) air
  38. 38.🧺 Do we need yeast 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 stick kept upright is the one thing we change. (a) False (b) True
  40. 40.True or false: a balloon is needed for the shadow clock. (a) True (b) False

Answer key

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

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