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Shadow and Sundial Experiment Worksheet

Science experiments lesson 27: Shadows and a sundial · Set 684 · 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) nothing on your head (b) a raincoat (c) a cap or hat (d) a woollen sweater
  2. 2.⚖️ Fair test — how does the shadow of a stick change through the day? Which of these is what we measure? (a) shadow length (b) the same stick (c) the same spot (d) the stick kept upright
  3. 3.🧺 Do we need a balloon for the shadow clock? (a) needed (b) not needed
  4. 4.🧺 Three of these are needed for the shadow clock. Which one is NOT needed? (a) a mirror (b) chalk to mark shadows (c) a sunny open place (d) a straight stick
  5. 5.🔦 Is clear glass opaque, translucent or transparent? (a) translucent (b) opaque (c) transparent
  6. 6.🧺 Three of these are needed for the shadow clock. Which one is NOT needed? (a) a sunny open place (b) a straight stick (c) a clock to check (d) a balloon
  7. 7.🧺 Do we need a sunny open place for the shadow clock? (a) not needed (b) needed
  8. 8.🧺 Do we need a clock to check for the shadow clock? (a) needed (b) not needed
  9. 9.🧺 Which of these is not needed for the shadow clock? (a) a clock to check (b) a straight stick (c) turmeric powder (d) chalk to mark shadows
  10. 10.🧺 Three of these are needed for the shadow clock. Which one is NOT needed? (a) a straight stick (b) a sunny open place (c) a clock to check (d) a magnet
  11. 11.🧺 Three of these are needed for the shadow clock. Which one is NOT needed? (a) a straight stick (b) turmeric powder (c) a sunny open place (d) a clock to check
  12. 12.🔍 Which is the odd one out? (a) clean water (b) clear glass (c) air (d) a brick
  13. 13.🧺 Which of these is not needed for the shadow clock? (a) a straight stick (b) chalk to mark shadows (c) a mirror (d) a clock to check
  14. 14.🔦 Which of these is opaque? (a) tissue paper (b) air (c) a wooden board (d) oily paper
  15. 15.🔍 Which is the odd one out? (a) oily paper (b) butter paper (c) tissue paper (d) a steel plate
  16. 16.True or false: a brick is opaque. (a) True (b) False
  17. 17.True or false: clean water is transparent. (a) False (b) True
  18. 18.🔍 Which is the odd one out? (a) clear glass (b) a wooden board (c) a book (d) a steel plate
  19. 19.🔍 Which is the odd one out? (a) clear plastic film (b) clean water (c) clear glass (d) tissue paper
  20. 20.🔦 Is your hand opaque, translucent or transparent? (a) transparent (b) opaque (c) translucent
  21. 21.⚖️ Fair test — how does the shadow of a stick change through the day? What do we do with “shadow length”? (a) we measure it (b) we change it (c) we keep it the same
  22. 22.🧺 Which of these is needed for the shadow clock? (a) a balloon (b) turmeric powder (c) a magnet (d) a sunny open place
  23. 23.🔦 Which of these is opaque? (a) a book (b) clean water (c) tissue paper (d) air
  24. 24.🔦 Which of these is opaque? (a) clear plastic film (b) your hand (c) oily paper (d) frosted glass
  25. 25.🛟 While watching shadows outdoors, what must you never do? (a) sit in the shade (b) look straight at the Sun (c) wear a cap (d) mark with chalk
  26. 26.⚖️ 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
  27. 27.⚖️ 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
  28. 28.⚖️ 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) False (b) True
  29. 29.True or false: frosted glass is translucent. (a) False (b) True
  30. 30.🧺 Do we need a mirror for the shadow clock? (a) needed (b) not needed
  31. 31.🧺 Do we need turmeric powder for the shadow clock? (a) needed (b) not needed
  32. 32.🧺 Do we need yeast for the shadow clock? (a) not needed (b) needed
  33. 33.True or false: a straight stick is not needed for the shadow clock. (a) False (b) True
  34. 34.🔍 Which is the odd one out? (a) oily paper (b) tissue paper (c) butter paper (d) clear plastic film
  35. 35.🔮 Predict: on a fully cloudy day, the sundial ___. (a) runs faster (b) does not work well (c) shows two times (d) works better
  36. 36.🧺 Do we need a straight stick for the shadow clock? (a) needed (b) not needed
  37. 37.🕰️ What is a sundial used for? (a) weighing things (b) telling the time (c) measuring rain (d) making rainbows
  38. 38.🌞 When is a stick’s shadow the shortest? (a) late evening (b) early morning (c) at night (d) around noon
  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 keep it the same (b) we measure it (c) we change it
  40. 40.⚖️ 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) True (b) False

Answer key

  1. a cap or hat
  2. shadow length
  3. not needed
  4. a mirror
  5. transparent
  6. a balloon
  7. needed
  8. needed
  9. turmeric powder
  10. a magnet
  11. turmeric powder
  12. a brick
  13. a mirror
  14. a wooden board
  15. a steel plate
  16. True
  17. True
  18. clear glass
  19. tissue paper
  20. opaque
  21. we measure it
  22. a sunny open place
  23. a book
  24. your hand
  25. look straight at the Sun
  26. True
  27. we keep it the same
  28. True
  29. True
  30. not needed
  31. not needed
  32. not needed
  33. False
  34. clear plastic film
  35. does not work well
  36. needed
  37. telling the time
  38. around noon
  39. we change it
  40. False

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