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Shadow and Sundial Experiment Worksheet

Science experiments lesson 27: Shadows and a sundial · Set 914 · 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? Which of these is the one thing we change? (a) the same stick (b) the time of day (c) shadow length (d) the same spot
  2. 2.🔍 Which is the odd one out? (a) clean water (b) a steel plate (c) clear plastic film (d) air
  3. 3.🔍 Which is the odd one out? (a) oily paper (b) butter paper (c) a book (d) tissue paper
  4. 4.🔍 Which is the odd one out? (a) butter paper (b) a steel plate (c) a book (d) a brick
  5. 5.⚖️ 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
  6. 6.True or false: clean water is opaque. (a) False (b) True
  7. 7.⚖️ 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
  8. 8.🔦 Is a wooden board opaque, translucent or transparent? (a) translucent (b) transparent (c) opaque
  9. 9.🧺 Which of these is not needed for the shadow clock? (a) a balloon (b) a straight stick (c) chalk to mark shadows (d) a sunny open place
  10. 10.🔮 Predict: you move a torch closer to your hand. The shadow on the wall gets ___. (a) bigger (b) coloured (c) brighter (d) smaller
  11. 11.⚖️ Fair test — how does the shadow of a stick change through the day? What do we do with “the time of day”? (a) we change it (b) we keep it the same (c) we measure it
  12. 12.🛟 While watching shadows outdoors, what must you never do? (a) wear a cap (b) mark with chalk (c) sit in the shade (d) look straight at the Sun
  13. 13.True or false: a book is transparent. (a) True (b) False
  14. 14.⚖️ 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
  15. 15.🧺 Three of these are needed for the shadow clock. Which one is NOT needed? (a) a straight stick (b) a balloon (c) a clock to check (d) chalk to mark shadows
  16. 16.⚖️ 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 keep it the same (c) we change it
  17. 17.🔮 Predict: on a fully cloudy day, the sundial ___. (a) runs faster (b) shows two times (c) works better (d) does not work well
  18. 18.True or false: a mirror is needed for the shadow clock. (a) False (b) True
  19. 19.🧺 Three of these are needed for the shadow clock. Which one is NOT needed? (a) chalk to mark shadows (b) a magnet (c) a clock to check (d) a straight stick
  20. 20.⚖️ Fair test — how does the shadow of a stick change through the day? What do we do with “the stick kept upright”? (a) we measure it (b) we keep it the same (c) we change it
  21. 21.True or false: a brick is translucent. (a) False (b) True
  22. 22.🔦 Is air opaque, translucent or transparent? (a) opaque (b) transparent (c) translucent
  23. 23.True or false: clear plastic film is translucent. (a) False (b) True
  24. 24.True or false: chalk to mark shadows is not needed for the shadow clock. (a) True (b) False
  25. 25.🧺 Which of these is needed for the shadow clock? (a) a mirror (b) chalk to mark shadows (c) turmeric powder (d) yeast
  26. 26.True or false: a battery cell is not needed for the shadow clock. (a) False (b) True
  27. 27.True or false: a magnet is not needed for the shadow clock. (a) True (b) False
  28. 28.True or false: your hand is translucent. (a) True (b) False
  29. 29.True or false: a steel plate is opaque. (a) True (b) False
  30. 30.🧺 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) a straight stick (d) yeast
  31. 31.🔦 Which of these is transparent? (a) a wooden board (b) a steel plate (c) tissue paper (d) clear plastic film
  32. 32.True or false: clean water is transparent. (a) False (b) True
  33. 33.⚖️ 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
  34. 34.True or false: a balloon is needed for the shadow clock. (a) False (b) True
  35. 35.🧺 Do we need a mirror for the shadow clock? (a) needed (b) not needed
  36. 36.⚖️ 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
  37. 37.🔦 Which of these is opaque? (a) clean water (b) tissue paper (c) a wooden board (d) oily paper
  38. 38.True or false: a battery cell is needed for the shadow clock. (a) False (b) True
  39. 39.🛟 What should you wear for a long time in the hot sun? (a) a cap or hat (b) a raincoat (c) nothing on your head (d) a woollen sweater
  40. 40.🧺 Do we need a sunny open place for the shadow clock? (a) needed (b) not needed

Answer key

  1. the time of day
  2. a steel plate
  3. a book
  4. butter paper
  5. True
  6. False
  7. we keep it the same
  8. opaque
  9. a balloon
  10. bigger
  11. we change it
  12. look straight at the Sun
  13. False
  14. False
  15. a balloon
  16. we measure it
  17. does not work well
  18. False
  19. a magnet
  20. we keep it the same
  21. False
  22. transparent
  23. False
  24. False
  25. chalk to mark shadows
  26. True
  27. True
  28. False
  29. True
  30. yeast
  31. clear plastic film
  32. True
  33. True
  34. False
  35. not needed
  36. we keep it the same
  37. a wooden board
  38. False
  39. a cap or hat
  40. needed

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