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Shadow and Sundial Experiment Worksheet

Science experiments lesson 27: Shadows and a sundial · Set 535 · 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.🌞 When is a stick’s shadow the shortest? (a) late evening (b) around noon (c) at night (d) early morning
  2. 2.True or false: a mirror is needed for the shadow clock. (a) False (b) True
  3. 3.🔦 Which of these is translucent? (a) a wooden board (b) a book (c) air (d) tissue paper
  4. 4.🧺 Do we need a sunny open place for the shadow clock? (a) not needed (b) needed
  5. 5.True or false: a brick is opaque. (a) True (b) False
  6. 6.🧺 Do we need a balloon for the shadow clock? (a) needed (b) not needed
  7. 7.⚖️ 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
  8. 8.🔍 Which is the odd one out? (a) oily paper (b) butter paper (c) clean water (d) frosted glass
  9. 9.🧺 Which of these is needed for the shadow clock? (a) a battery cell (b) a balloon (c) a sunny open place (d) turmeric powder
  10. 10.🧺 Three of these are needed for the shadow clock. Which one is NOT needed? (a) a sunny open place (b) a clock to check (c) a straight stick (d) a balloon
  11. 11.🧺 Three of these are needed for the shadow clock. Which one is NOT needed? (a) a straight stick (b) a magnet (c) a clock to check (d) chalk to mark shadows
  12. 12.🧺 Do we need chalk to mark shadows for the shadow clock? (a) not needed (b) needed
  13. 13.⚖️ 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 stick (b) shadow length (c) the time of day (d) the stick kept upright
  14. 14.🔍 Which is the odd one out? (a) air (b) butter paper (c) clean water (d) clear glass
  15. 15.🛟 What should you wear for a long time in the hot sun? (a) a cap or hat (b) nothing on your head (c) a woollen sweater (d) a raincoat
  16. 16.⚖️ 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 change it (c) we keep it the same
  17. 17.True or false: a straight stick is not needed for the shadow clock. (a) True (b) False
  18. 18.🧺 Three of these are needed for the shadow clock. Which one is NOT needed? (a) turmeric powder (b) a straight stick (c) chalk to mark shadows (d) a sunny open place
  19. 19.🔦 Which of these is opaque? (a) air (b) clear glass (c) a book (d) clear plastic film
  20. 20.🔦 Is clear glass opaque, translucent or transparent? (a) opaque (b) translucent (c) transparent
  21. 21.🔦 Is a brick opaque, translucent or transparent? (a) translucent (b) transparent (c) opaque
  22. 22.🔮 Predict: the Sun is low in the evening sky. The stick’s shadow is ___. (a) short (b) round (c) missing (d) long
  23. 23.🧺 Three of these are needed for the shadow clock. Which one is NOT needed? (a) chalk to mark shadows (b) a battery cell (c) a sunny open place (d) a clock to check
  24. 24.⚖️ 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) shadow length (c) the same spot
  25. 25.⚖️ Fair test — how does the shadow of a stick change through the day? What do we do with “the same spot”? (a) we change it (b) we measure it (c) we keep it the same
  26. 26.🔍 Which is the odd one out? (a) air (b) oily paper (c) tissue paper (d) frosted glass
  27. 27.True or false: a clock to check is needed for the shadow clock. (a) False (b) True
  28. 28.🔦 Which of these is transparent? (a) a book (b) oily paper (c) a steel plate (d) clear glass
  29. 29.🧺 Which of these is needed for the shadow clock? (a) a mirror (b) a magnet (c) turmeric powder (d) a straight stick
  30. 30.🔍 Which is the odd one out? (a) air (b) a steel plate (c) clean water (d) clear plastic film
  31. 31.🔮 Predict: on a fully cloudy day, the sundial ___. (a) does not work well (b) runs faster (c) shows two times (d) works better
  32. 32.🔦 Which of these is transparent? (a) frosted glass (b) clean water (c) your hand (d) a wooden board
  33. 33.True or false: tissue paper is opaque. (a) True (b) False
  34. 34.True or false: clear glass is opaque. (a) False (b) True
  35. 35.True or false: a balloon is needed for the shadow clock. (a) True (b) False
  36. 36.🔦 Which of these is translucent? (a) clear glass (b) frosted glass (c) a steel plate (d) clear plastic film
  37. 37.🧺 Three of these are needed for the shadow clock. Which one is NOT needed? (a) a sunny open place (b) yeast (c) chalk to mark shadows (d) a clock to check
  38. 38.⚖️ 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
  39. 39.🧺 Do we need a mirror for the shadow clock? (a) not needed (b) needed
  40. 40.⚖️ 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

Answer key

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

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