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Shadow and Sundial Experiment Worksheet

Science experiments lesson 27: Shadows and a sundial · Set 461 · 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: a magnet is not needed for the shadow clock. (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 same stick (b) the time of day (c) shadow length (d) the same spot
  3. 3.⚖️ 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 same spot (c) the stick kept upright (d) the time of day
  4. 4.🧺 Three of these are needed for the shadow clock. Which one is NOT needed? (a) a sunny open place (b) a battery cell (c) chalk to mark shadows (d) a straight stick
  5. 5.🔍 Which is the odd one out? (a) frosted glass (b) butter paper (c) your hand (d) tissue paper
  6. 6.🧺 Which of these is not needed for the shadow clock? (a) a straight stick (b) chalk to mark shadows (c) a magnet (d) a clock to check
  7. 7.True or false: clear plastic film is opaque. (a) True (b) False
  8. 8.🔦 Which of these is opaque? (a) butter paper (b) clear glass (c) clear plastic film (d) a book
  9. 9.🧺 Three of these are needed for the shadow clock. Which one is NOT needed? (a) a clock to check (b) turmeric powder (c) a sunny open place (d) chalk to mark shadows
  10. 10.🛟 While watching shadows outdoors, what must you never do? (a) wear a cap (b) sit in the shade (c) look straight at the Sun (d) mark with chalk
  11. 11.🧺 Three of these are needed for the shadow clock. Which one is NOT needed? (a) a clock to check (b) a mirror (c) chalk to mark shadows (d) a sunny open place
  12. 12.🧺 Which of these is needed for the shadow clock? (a) a clock to check (b) yeast (c) a mirror (d) a balloon
  13. 13.🧺 Which of these is needed for the shadow clock? (a) a magnet (b) yeast (c) chalk to mark shadows (d) a balloon
  14. 14.🧺 Three of these are needed for the shadow clock. Which one is NOT needed? (a) a straight stick (b) a sunny open place (c) a clock to check (d) a balloon
  15. 15.🧺 Do we need a mirror for the shadow clock? (a) not needed (b) needed
  16. 16.🔍 Which is the odd one out? (a) clean water (b) a brick (c) a book (d) a wooden board
  17. 17.True or false: a brick is translucent. (a) False (b) True
  18. 18.⚖️ Fair test — how does the shadow of a stick change through the day? What do we do with “the time of day”? (a) we keep it the same (b) we change it (c) we measure it
  19. 19.True or false: turmeric powder is not needed for the shadow clock. (a) True (b) False
  20. 20.🛟 What should you wear for a long time in the hot sun? (a) a raincoat (b) nothing on your head (c) a woollen sweater (d) a cap or hat
  21. 21.🔍 Which is the odd one out? (a) clean water (b) clear glass (c) clear plastic film (d) oily paper
  22. 22.🔍 Which is the odd one out? (a) a book (b) air (c) your hand (d) a steel plate
  23. 23.🌍 Why does the stick’s shadow move during the day? (a) the stick grows (b) Earth keeps spinning (c) the stick walks (d) the ground slides
  24. 24.🧺 Do we need turmeric powder for the shadow clock? (a) needed (b) not needed
  25. 25.🧺 Do we need a battery cell for the shadow clock? (a) not needed (b) needed
  26. 26.🧺 Do we need a sunny open place for the shadow clock? (a) not needed (b) needed
  27. 27.🔦 Is a steel plate opaque, translucent or transparent? (a) translucent (b) transparent (c) opaque
  28. 28.True or false: a sunny open place is not needed for the shadow clock. (a) True (b) False
  29. 29.True or false: a clock to check is not needed for the shadow clock. (a) True (b) False
  30. 30.🔮 Predict: you move a torch closer to your hand. The shadow on the wall gets ___. (a) coloured (b) smaller (c) bigger (d) brighter
  31. 31.⚖️ Fair test — how does the shadow of a stick change through the day? True or false: the time of day is kept the same. (a) True (b) False
  32. 32.True or false: a mirror is needed for the shadow clock. (a) True (b) False
  33. 33.🔍 Which is the odd one out? (a) tissue paper (b) butter paper (c) a steel plate (d) frosted glass
  34. 34.True or false: a balloon is not needed for the shadow clock. (a) False (b) True
  35. 35.🧺 Which of these is not needed for the shadow clock? (a) a straight stick (b) a clock to check (c) turmeric powder (d) a sunny open place
  36. 36.🌞 When is a stick’s shadow the shortest? (a) early morning (b) late evening (c) at night (d) around noon
  37. 37.🔍 Which is the odd one out? (a) butter paper (b) frosted glass (c) clear plastic film (d) tissue paper
  38. 38.True or false: a mirror is not needed for the shadow clock. (a) False (b) True
  39. 39.🔍 Which is the odd one out? (a) frosted glass (b) butter paper (c) tissue paper (d) a wooden board
  40. 40.True or false: chalk to mark shadows is needed for the shadow clock. (a) False (b) True

Answer key

  1. True
  2. shadow length
  3. the time of day
  4. a battery cell
  5. your hand
  6. a magnet
  7. False
  8. a book
  9. turmeric powder
  10. look straight at the Sun
  11. a mirror
  12. a clock to check
  13. chalk to mark shadows
  14. a balloon
  15. not needed
  16. clean water
  17. False
  18. we change it
  19. True
  20. a cap or hat
  21. oily paper
  22. air
  23. Earth keeps spinning
  24. not needed
  25. not needed
  26. needed
  27. opaque
  28. False
  29. False
  30. bigger
  31. False
  32. False
  33. a steel plate
  34. True
  35. turmeric powder
  36. around noon
  37. clear plastic film
  38. True
  39. a wooden board
  40. True

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