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Shadow and Sundial Experiment Worksheet

Science experiments lesson 27: Shadows and a sundial · Set 459 · 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.⚖️ Fair test — how does the shadow of a stick change through the day? True or false: shadow length is what we measure. (a) True (b) False
  2. 2.🧺 Which of these is not needed for the shadow clock? (a) a sunny open place (b) a straight stick (c) chalk to mark shadows (d) yeast
  3. 3.⚖️ 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
  4. 4.⚖️ 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 time of day (c) the stick kept upright (d) the same stick
  5. 5.⚖️ 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) False (b) True
  6. 6.🔍 Which is the odd one out? (a) tissue paper (b) a book (c) a brick (d) a wooden board
  7. 7.🧺 Do we need a clock to check for the shadow clock? (a) needed (b) not needed
  8. 8.🔦 Which of these is transparent? (a) a wooden board (b) frosted glass (c) a book (d) air
  9. 9.🔦 Which of these is opaque? (a) tissue paper (b) clean water (c) frosted glass (d) a steel plate
  10. 10.⚖️ Fair test — how does the shadow of a stick change through the day? What do we do with “the same spot”? (a) we measure it (b) we change it (c) we keep it the same
  11. 11.True or false: a battery cell is not needed for the shadow clock. (a) False (b) True
  12. 12.🔦 Which of these is transparent? (a) clear glass (b) frosted glass (c) your hand (d) butter paper
  13. 13.True or false: a brick is opaque. (a) False (b) True
  14. 14.🛟 While watching shadows outdoors, what must you never do? (a) sit in the shade (b) mark with chalk (c) wear a cap (d) look straight at the Sun
  15. 15.🧺 Do we need turmeric powder for the shadow clock? (a) needed (b) not needed
  16. 16.🛟 What should you wear for a long time in the hot sun? (a) a woollen sweater (b) a cap or hat (c) a raincoat (d) nothing on your head
  17. 17.🧺 Do we need chalk to mark shadows for the shadow clock? (a) needed (b) not needed
  18. 18.🔍 Which is the odd one out? (a) clean water (b) oily paper (c) air (d) clear glass
  19. 19.⚖️ Fair test — how does the shadow of a stick change through the day? Which of these is the one thing we change? (a) the time of day (b) shadow length (c) the same spot (d) the same stick
  20. 20.🧺 Do we need a straight stick for the shadow clock? (a) not needed (b) needed
  21. 21.True or false: a book is translucent. (a) True (b) False
  22. 22.🔮 Predict: you move a torch closer to your hand. The shadow on the wall gets ___. (a) brighter (b) coloured (c) bigger (d) smaller
  23. 23.🔍 Which is the odd one out? (a) a wooden board (b) frosted glass (c) your hand (d) a brick
  24. 24.🧺 Do we need a mirror for the shadow clock? (a) needed (b) not needed
  25. 25.🔦 Is tissue paper opaque, translucent or transparent? (a) transparent (b) translucent (c) opaque
  26. 26.🔍 Which is the odd one out? (a) butter paper (b) clear glass (c) tissue paper (d) frosted glass
  27. 27.True or false: a magnet is needed for the shadow clock. (a) False (b) True
  28. 28.True or false: a clock to check is needed for the shadow clock. (a) False (b) True
  29. 29.🔦 Is a wooden board opaque, translucent or transparent? (a) transparent (b) translucent (c) opaque
  30. 30.🧺 Which of these is needed for the shadow clock? (a) turmeric powder (b) a magnet (c) a straight stick (d) a balloon
  31. 31.⚖️ 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
  32. 32.True or false: oily paper is opaque. (a) False (b) True
  33. 33.True or false: a sunny open place is needed for the shadow clock. (a) True (b) False
  34. 34.True or false: a mirror is not needed for the shadow clock. (a) False (b) True
  35. 35.🧺 Which of these is needed for the shadow clock? (a) a clock to check (b) yeast (c) a mirror (d) a balloon
  36. 36.🔦 Which of these is opaque? (a) clean water (b) air (c) a wooden board (d) butter paper
  37. 37.🧺 Which of these is not needed for the shadow clock? (a) a magnet (b) a sunny open place (c) a straight stick (d) a clock to check
  38. 38.🔮 Predict: on a fully cloudy day, the sundial ___. (a) does not work well (b) works better (c) runs faster (d) shows two times
  39. 39.🧺 Which of these is needed for the shadow clock? (a) a mirror (b) a sunny open place (c) yeast (d) a balloon
  40. 40.🧺 Three of these are needed for the shadow clock. Which one is NOT needed? (a) a sunny open place (b) a balloon (c) chalk to mark shadows (d) a straight stick

Answer key

  1. True
  2. yeast
  3. we change it
  4. shadow length
  5. True
  6. tissue paper
  7. needed
  8. air
  9. a steel plate
  10. we keep it the same
  11. True
  12. clear glass
  13. True
  14. look straight at the Sun
  15. not needed
  16. a cap or hat
  17. needed
  18. oily paper
  19. the time of day
  20. needed
  21. False
  22. bigger
  23. frosted glass
  24. not needed
  25. translucent
  26. clear glass
  27. False
  28. True
  29. opaque
  30. a straight stick
  31. False
  32. False
  33. True
  34. True
  35. a clock to check
  36. a wooden board
  37. a magnet
  38. does not work well
  39. a sunny open place
  40. a balloon

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