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Shadow and Sundial Experiment Worksheet

Science experiments lesson 27: Shadows and a sundial · Set 126 · 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.True or false: butter paper is translucent. (a) True (b) False
  2. 2.⚖️ 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 stick (c) the same spot (d) shadow length
  3. 3.🔍 Which is the odd one out? (a) a book (b) a wooden board (c) tissue paper (d) a steel plate
  4. 4.🔦 Which of these is opaque? (a) a book (b) frosted glass (c) butter paper (d) air
  5. 5.🔮 Predict: the Sun is low in the evening sky. The stick’s shadow is ___. (a) round (b) missing (c) long (d) short
  6. 6.🔮 Predict: you move a torch closer to your hand. The shadow on the wall gets ___. (a) smaller (b) coloured (c) brighter (d) bigger
  7. 7.⚖️ 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) True (b) False
  8. 8.🧺 Three of these are needed for the shadow clock. Which one is NOT needed? (a) a sunny open place (b) chalk to mark shadows (c) a balloon (d) a straight stick
  9. 9.🧺 Do we need a straight stick for the shadow clock? (a) needed (b) not needed
  10. 10.🌞 When is a stick’s shadow the shortest? (a) early morning (b) around noon (c) late evening (d) at night
  11. 11.🛟 What should you wear for a long time in the hot sun? (a) nothing on your head (b) a woollen sweater (c) a raincoat (d) a cap or hat
  12. 12.🔦 Is a steel plate opaque, translucent or transparent? (a) transparent (b) opaque (c) translucent
  13. 13.🧺 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) a magnet
  14. 14.True or false: turmeric powder is not needed for the shadow clock. (a) False (b) True
  15. 15.🔦 Is clear glass opaque, translucent or transparent? (a) transparent (b) translucent (c) opaque
  16. 16.🧺 Three of these are needed for the shadow clock. Which one is NOT needed? (a) chalk to mark shadows (b) a straight stick (c) yeast (d) a clock to check
  17. 17.⚖️ 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
  18. 18.🧺 Do we need a sunny open place for the shadow clock? (a) needed (b) not needed
  19. 19.🧺 Which of these is not needed for the shadow clock? (a) a sunny open place (b) a clock to check (c) a battery cell (d) chalk to mark shadows
  20. 20.⚖️ Fair test — how does the shadow of a stick change through the day? True or false: shadow length is kept the same. (a) True (b) False
  21. 21.🧺 Do we need a balloon for the shadow clock? (a) not needed (b) needed
  22. 22.🛟 While watching shadows outdoors, what must you never do? (a) look straight at the Sun (b) wear a cap (c) mark with chalk (d) sit in the shade
  23. 23.🧺 Do we need a clock to check for the shadow clock? (a) needed (b) not needed
  24. 24.⚖️ 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) True (b) False
  25. 25.🔦 Is a wooden board opaque, translucent or transparent? (a) opaque (b) translucent (c) transparent
  26. 26.🧺 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 mirror (d) chalk to mark shadows
  27. 27.True or false: a balloon is not needed for the shadow clock. (a) False (b) True
  28. 28.🧺 Do we need a magnet for the shadow clock? (a) not needed (b) needed
  29. 29.True or false: yeast is needed for the shadow clock. (a) False (b) True
  30. 30.🧺 Do we need turmeric powder for the shadow clock? (a) needed (b) not needed
  31. 31.🔍 Which is the odd one out? (a) air (b) clear glass (c) a book (d) clean water
  32. 32.True or false: a sunny open place is not needed for the shadow clock. (a) False (b) True
  33. 33.⚖️ Fair test — how does the shadow of a stick change through the day? True or false: the same spot is the one thing we change. (a) True (b) False
  34. 34.True or false: a steel plate is transparent. (a) False (b) True
  35. 35.🔮 Predict: on a fully cloudy day, the sundial ___. (a) shows two times (b) runs faster (c) does not work well (d) works better
  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 stick kept upright (c) the time of day
  37. 37.True or false: clear plastic film is translucent. (a) False (b) True
  38. 38.🔦 Is clean water opaque, translucent or transparent? (a) translucent (b) opaque (c) transparent
  39. 39.🕰️ What is a sundial used for? (a) making rainbows (b) telling the time (c) measuring rain (d) weighing things
  40. 40.🔦 Which of these is opaque? (a) oily paper (b) clear glass (c) clean water (d) a steel plate

Answer key

  1. True
  2. shadow length
  3. tissue paper
  4. a book
  5. long
  6. bigger
  7. True
  8. a balloon
  9. needed
  10. around noon
  11. a cap or hat
  12. opaque
  13. a magnet
  14. True
  15. transparent
  16. yeast
  17. we change it
  18. needed
  19. a battery cell
  20. False
  21. not needed
  22. look straight at the Sun
  23. needed
  24. False
  25. opaque
  26. a mirror
  27. True
  28. not needed
  29. False
  30. not needed
  31. a book
  32. False
  33. False
  34. False
  35. does not work well
  36. the stick kept upright
  37. False
  38. transparent
  39. telling the time
  40. a steel plate

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