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Shadow and Sundial Experiment Worksheet

Science experiments lesson 27: Shadows and a sundial · Set 908 · 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: clean water is opaque. (a) True (b) False
  2. 2.🧺 Which of these is not needed for the shadow clock? (a) a straight stick (b) chalk to mark shadows (c) yeast (d) a clock to check
  3. 3.⚖️ Fair test — how does the shadow of a stick change through the day? What do we do with “the same stick”? (a) we measure it (b) we keep it the same (c) we change it
  4. 4.🔮 Predict: you move a torch closer to your hand. The shadow on the wall gets ___. (a) bigger (b) coloured (c) brighter (d) smaller
  5. 5.🔍 Which is the odd one out? (a) oily paper (b) frosted glass (c) clean water (d) butter paper
  6. 6.🧺 Do we need a straight stick for the shadow clock? (a) not needed (b) needed
  7. 7.🔦 Is clear plastic film opaque, translucent or transparent? (a) translucent (b) opaque (c) transparent
  8. 8.🔮 Predict: on a fully cloudy day, the sundial ___. (a) shows two times (b) runs faster (c) does not work well (d) works better
  9. 9.⚖️ 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
  10. 10.🧺 Which of these is needed for the shadow clock? (a) a clock to check (b) yeast (c) a battery cell (d) a balloon
  11. 11.True or false: a steel plate is transparent. (a) False (b) True
  12. 12.🧺 Do we need a sunny open place for the shadow clock? (a) needed (b) not needed
  13. 13.True or false: a steel plate is translucent. (a) False (b) True
  14. 14.🧺 Three of these are needed for the shadow clock. Which one is NOT needed? (a) chalk to mark shadows (b) a sunny open place (c) a battery cell (d) a straight stick
  15. 15.🔍 Which is the odd one out? (a) frosted glass (b) butter paper (c) tissue paper (d) a wooden board
  16. 16.🔦 Which of these is opaque? (a) butter paper (b) tissue paper (c) air (d) a brick
  17. 17.🌞 When is a stick’s shadow the shortest? (a) at night (b) late evening (c) around noon (d) early morning
  18. 18.⚖️ 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) False (b) True
  19. 19.🛟 What should you wear for a long time in the hot sun? (a) a woollen sweater (b) a raincoat (c) a cap or hat (d) nothing on your head
  20. 20.⚖️ Fair test — how does the shadow of a stick change through the day? Which of these is the one thing we change? (a) the same spot (b) the same stick (c) the stick kept upright (d) the time of day
  21. 21.🧺 Three of these are needed for the shadow clock. Which one is NOT needed? (a) chalk to mark shadows (b) a sunny open place (c) yeast (d) a straight stick
  22. 22.🔦 Is a steel plate opaque, translucent or transparent? (a) translucent (b) opaque (c) transparent
  23. 23.🧺 Do we need a mirror for the shadow clock? (a) needed (b) not needed
  24. 24.🧺 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 clock to check (d) a magnet
  25. 25.🧺 Which of these is not needed for the shadow clock? (a) a straight stick (b) a mirror (c) a clock to check (d) chalk to mark shadows
  26. 26.🧺 Do we need a clock to check for the shadow clock? (a) not needed (b) needed
  27. 27.True or false: your hand is opaque. (a) True (b) False
  28. 28.⚖️ 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
  29. 29.🔦 Is frosted glass opaque, translucent or transparent? (a) opaque (b) translucent (c) transparent
  30. 30.⚖️ 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
  31. 31.True or false: a brick is translucent. (a) False (b) True
  32. 32.⚖️ 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
  33. 33.⚖️ 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 stick
  34. 34.🔍 Which is the odd one out? (a) air (b) oily paper (c) clear glass (d) clean water
  35. 35.🧺 Which of these is not needed for the shadow clock? (a) a balloon (b) a clock to check (c) chalk to mark shadows (d) a sunny open place
  36. 36.🧺 Three of these are needed for the shadow clock. Which one is NOT needed? (a) a clock to check (b) a balloon (c) a sunny open place (d) chalk to mark shadows
  37. 37.True or false: your hand is transparent. (a) False (b) True
  38. 38.🧺 Do we need yeast for the shadow clock? (a) needed (b) not needed
  39. 39.🔦 Is clear glass opaque, translucent or transparent? (a) opaque (b) transparent (c) translucent
  40. 40.⚖️ 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 keep it the same (c) we change it

Answer key

  1. False
  2. yeast
  3. we keep it the same
  4. bigger
  5. clean water
  6. needed
  7. transparent
  8. does not work well
  9. True
  10. a clock to check
  11. False
  12. needed
  13. False
  14. a battery cell
  15. a wooden board
  16. a brick
  17. around noon
  18. False
  19. a cap or hat
  20. the time of day
  21. yeast
  22. opaque
  23. not needed
  24. a magnet
  25. a mirror
  26. needed
  27. True
  28. True
  29. translucent
  30. False
  31. False
  32. we measure it
  33. the same stick
  34. oily paper
  35. a balloon
  36. a balloon
  37. False
  38. not needed
  39. transparent
  40. we change it

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