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Shadow and Sundial Experiment Worksheet

Science experiments lesson 27: Shadows and a sundial · Set 66 · 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? What do we do with “the time of day”? (a) we keep it the same (b) we change it (c) we measure it
  2. 2.True or false: a book is translucent. (a) False (b) True
  3. 3.True or false: butter paper is opaque. (a) False (b) True
  4. 4.🔮 Predict: the Sun is low in the evening sky. The stick’s shadow is ___. (a) short (b) long (c) round (d) missing
  5. 5.⚖️ Fair test — how does the shadow of a stick change through the day? True or false: the time of day is what we measure. (a) True (b) False
  6. 6.True or false: a battery cell is needed for the shadow clock. (a) True (b) False
  7. 7.⚖️ 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
  8. 8.🧺 Which of these is needed for the shadow clock? (a) yeast (b) a straight stick (c) a mirror (d) turmeric powder
  9. 9.🛟 While watching shadows outdoors, what must you never do? (a) sit in the shade (b) wear a cap (c) look straight at the Sun (d) mark with chalk
  10. 10.🌞 When is a stick’s shadow the shortest? (a) around noon (b) early morning (c) at night (d) late evening
  11. 11.🧺 Three of these are needed for the shadow clock. Which one is NOT needed? (a) a straight stick (b) a clock to check (c) a battery cell (d) a sunny open place
  12. 12.⚖️ 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
  13. 13.🧺 Which of these is needed for the shadow clock? (a) a mirror (b) a battery cell (c) a magnet (d) chalk to mark shadows
  14. 14.🧺 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) yeast (d) a straight stick
  15. 15.🔦 Is clear plastic film opaque, translucent or transparent? (a) opaque (b) translucent (c) transparent
  16. 16.🔦 Is a brick opaque, translucent or transparent? (a) transparent (b) translucent (c) opaque
  17. 17.🔍 Which is the odd one out? (a) a steel plate (b) a wooden board (c) a book (d) clean water
  18. 18.🛟 What should you wear for a long time in the hot sun? (a) a cap or hat (b) a woollen sweater (c) nothing on your head (d) a raincoat
  19. 19.🔦 Which of these is transparent? (a) a wooden board (b) butter paper (c) clear glass (d) a book
  20. 20.🧺 Three of these are needed for the shadow clock. Which one is NOT needed? (a) turmeric powder (b) a sunny open place (c) a straight stick (d) a clock to check
  21. 21.🔦 Which of these is transparent? (a) clear plastic film (b) oily paper (c) tissue paper (d) a steel plate
  22. 22.🌍 Why does the stick’s shadow move during the day? (a) the stick walks (b) the stick grows (c) Earth keeps spinning (d) the ground slides
  23. 23.⚖️ 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) the same stick (c) the same spot (d) shadow length
  24. 24.🔮 Predict: you move a torch closer to your hand. The shadow on the wall gets ___. (a) bigger (b) coloured (c) brighter (d) smaller
  25. 25.🧺 Do we need a magnet for the shadow clock? (a) not needed (b) needed
  26. 26.🧺 Do we need a clock to check for the shadow clock? (a) needed (b) not needed
  27. 27.True or false: turmeric powder is not needed for the shadow clock. (a) False (b) True
  28. 28.🧺 Which of these is needed for the shadow clock? (a) a mirror (b) a clock to check (c) a balloon (d) a battery cell
  29. 29.True or false: a clock to check is needed for the shadow clock. (a) True (b) False
  30. 30.🧺 Do we need a straight stick for the shadow clock? (a) not needed (b) needed
  31. 31.🧺 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
  32. 32.🔮 Predict: on a fully cloudy day, the sundial ___. (a) does not work well (b) runs faster (c) shows two times (d) works better
  33. 33.🔍 Which is the odd one out? (a) a steel plate (b) a wooden board (c) tissue paper (d) your hand
  34. 34.🔦 Is a wooden board opaque, translucent or transparent? (a) translucent (b) transparent (c) opaque
  35. 35.🧺 Do we need a battery cell for the shadow clock? (a) needed (b) not needed
  36. 36.🔍 Which is the odd one out? (a) a wooden board (b) oily paper (c) frosted glass (d) tissue paper
  37. 37.🕰️ What is a sundial used for? (a) making rainbows (b) telling the time (c) weighing things (d) measuring rain
  38. 38.🧺 Do we need a sunny open place for the shadow clock? (a) needed (b) not needed
  39. 39.🔦 Which of these is opaque? (a) oily paper (b) butter paper (c) your hand (d) tissue paper
  40. 40.True or false: a wooden board is opaque. (a) False (b) True

Answer key

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

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