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Shadow and Sundial Experiment Worksheet

Science experiments lesson 27: Shadows and a sundial · Set 445 · 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 battery cell is needed for the shadow clock. (a) False (b) True
  2. 2.🧺 Three of these are needed for the shadow clock. Which one is NOT needed? (a) a clock to check (b) yeast (c) a sunny open place (d) chalk to mark shadows
  3. 3.⚖️ Fair test — how does the shadow of a stick change through the day? True or false: the same stick is kept the same. (a) False (b) True
  4. 4.🔦 Which of these is translucent? (a) frosted glass (b) clean water (c) a steel plate (d) a book
  5. 5.True or false: chalk to mark shadows is needed for the shadow clock. (a) False (b) True
  6. 6.⚖️ Fair test — how does the shadow of a stick change through the day? What do we do with “shadow length”? (a) we change it (b) we keep it the same (c) we measure it
  7. 7.🔮 Predict: the Sun is low in the evening sky. The stick’s shadow is ___. (a) missing (b) round (c) short (d) long
  8. 8.🔮 Predict: you move a torch closer to your hand. The shadow on the wall gets ___. (a) brighter (b) bigger (c) coloured (d) smaller
  9. 9.⚖️ Fair test — how does the shadow of a stick change through the day? What do we do with “the stick kept upright”? (a) we change it (b) we keep it the same (c) we measure it
  10. 10.True or false: a sunny open place is needed for the shadow clock. (a) True (b) False
  11. 11.True or false: oily paper is translucent. (a) True (b) False
  12. 12.⚖️ 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) False (b) True
  13. 13.True or false: a magnet is needed for the shadow clock. (a) True (b) False
  14. 14.🛟 What should you wear for a long time in the hot sun? (a) a cap or hat (b) a woollen sweater (c) a raincoat (d) nothing on your head
  15. 15.⚖️ 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 same spot (c) shadow length (d) the time of day
  16. 16.🧺 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
  17. 17.🔦 Which of these is transparent? (a) a brick (b) frosted glass (c) clear plastic film (d) oily paper
  18. 18.🔍 Which is the odd one out? (a) clear glass (b) a book (c) air (d) clean water
  19. 19.🛟 While watching shadows outdoors, what must you never do? (a) sit in the shade (b) wear a cap (c) mark with chalk (d) look straight at the Sun
  20. 20.⚖️ Fair test — how does the shadow of a stick change through the day? Which of these is the one thing we change? (a) the stick kept upright (b) the same stick (c) the time of day (d) shadow length
  21. 21.True or false: a straight stick is not needed for the shadow clock. (a) True (b) False
  22. 22.True or false: yeast is not needed for the shadow clock. (a) False (b) True
  23. 23.🧺 Do we need chalk to mark shadows for the shadow clock? (a) needed (b) not needed
  24. 24.⚖️ 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
  25. 25.🔮 Predict: on a fully cloudy day, the sundial ___. (a) works better (b) does not work well (c) runs faster (d) shows two times
  26. 26.True or false: chalk to mark shadows is not needed for the shadow clock. (a) True (b) False
  27. 27.🔦 Is clear glass opaque, translucent or transparent? (a) opaque (b) transparent (c) translucent
  28. 28.🌅 In the morning the Sun is in the east. Which way does a shadow point? (a) north (b) up (c) east (d) west
  29. 29.⚖️ Fair test — how does the shadow of a stick change through the day? True or false: the same stick is what we measure. (a) True (b) False
  30. 30.🔦 Is a wooden board opaque, translucent or transparent? (a) opaque (b) translucent (c) transparent
  31. 31.🧺 Do we need a clock to check for the shadow clock? (a) needed (b) not needed
  32. 32.🕰️ What is a sundial used for? (a) making rainbows (b) measuring rain (c) weighing things (d) telling the time
  33. 33.True or false: a steel plate is transparent. (a) True (b) False
  34. 34.🧺 Do we need turmeric powder for the shadow clock? (a) needed (b) not needed
  35. 35.⚖️ 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
  36. 36.🔍 Which is the odd one out? (a) your hand (b) a book (c) a wooden board (d) clean water
  37. 37.True or false: a mirror is not needed for the shadow clock. (a) True (b) False
  38. 38.🔍 Which is the odd one out? (a) clear glass (b) clear plastic film (c) your hand (d) air
  39. 39.🧺 Do we need a mirror for the shadow clock? (a) not needed (b) needed
  40. 40.True or false: tissue paper is transparent. (a) True (b) False

Answer key

  1. False
  2. yeast
  3. True
  4. frosted glass
  5. True
  6. we measure it
  7. long
  8. bigger
  9. we keep it the same
  10. True
  11. True
  12. False
  13. False
  14. a cap or hat
  15. shadow length
  16. a magnet
  17. clear plastic film
  18. a book
  19. look straight at the Sun
  20. the time of day
  21. False
  22. True
  23. needed
  24. we change it
  25. does not work well
  26. False
  27. transparent
  28. west
  29. False
  30. opaque
  31. needed
  32. telling the time
  33. False
  34. not needed
  35. True
  36. clean water
  37. True
  38. your hand
  39. not needed
  40. False

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