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Shadow and Sundial Experiment Worksheet

Science experiments lesson 27: Shadows and a sundial · Set 951 · 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: butter paper is translucent. (a) True (b) False
  2. 2.True or false: a magnet is needed for the shadow clock. (a) True (b) False
  3. 3.🧺 Which of these is not needed for the shadow clock? (a) a straight stick (b) a sunny open place (c) turmeric powder (d) chalk to mark shadows
  4. 4.🧺 Which of these is not needed for the shadow clock? (a) a battery cell (b) chalk to mark shadows (c) a straight stick (d) a clock to check
  5. 5.🛟 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
  6. 6.🔍 Which is the odd one out? (a) a wooden board (b) your hand (c) clear plastic film (d) a book
  7. 7.🌍 Why does the stick’s shadow move during the day? (a) the stick grows (b) the stick walks (c) Earth keeps spinning (d) the ground slides
  8. 8.🧺 Which of these is needed for the shadow clock? (a) turmeric powder (b) yeast (c) a mirror (d) a straight stick
  9. 9.True or false: a magnet is not needed for the shadow clock. (a) True (b) False
  10. 10.True or false: oily paper is translucent. (a) True (b) False
  11. 11.🔦 Which of these is transparent? (a) clear glass (b) a steel plate (c) tissue paper (d) butter paper
  12. 12.🔍 Which is the odd one out? (a) oily paper (b) a book (c) a steel plate (d) a wooden board
  13. 13.🧺 Which of these is not needed for the shadow clock? (a) chalk to mark shadows (b) a mirror (c) a sunny open place (d) a clock to check
  14. 14.⚖️ Fair test — how does the shadow of a stick change through the day? What do we do with “shadow length”? (a) we keep it the same (b) we change it (c) we measure it
  15. 15.🌅 In the morning the Sun is in the east. Which way does a shadow point? (a) west (b) east (c) up (d) north
  16. 16.🔍 Which is the odd one out? (a) frosted glass (b) clean water (c) air (d) clear plastic film
  17. 17.True or false: a brick is transparent. (a) False (b) True
  18. 18.⚖️ 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
  19. 19.🧺 Which of these is not needed for the shadow clock? (a) a straight stick (b) a clock to check (c) yeast (d) a sunny open place
  20. 20.🔍 Which is the odd one out? (a) clear glass (b) a steel plate (c) air (d) clear plastic film
  21. 21.🔦 Is clear plastic film opaque, translucent or transparent? (a) opaque (b) translucent (c) transparent
  22. 22.True or false: yeast is not needed for the shadow clock. (a) False (b) True
  23. 23.🔮 Predict: the Sun is low in the evening sky. The stick’s shadow is ___. (a) round (b) long (c) short (d) missing
  24. 24.🧺 Do we need a straight stick for the shadow clock? (a) needed (b) not needed
  25. 25.🧺 Three of these are needed for the shadow clock. Which one is NOT needed? (a) a straight stick (b) a sunny open place (c) chalk to mark shadows (d) a magnet
  26. 26.🔦 Is clean water opaque, translucent or transparent? (a) opaque (b) translucent (c) transparent
  27. 27.True or false: a straight stick is not needed for the shadow clock. (a) True (b) False
  28. 28.⚖️ 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
  29. 29.🧺 Which of these is needed for the shadow clock? (a) a battery cell (b) turmeric powder (c) a magnet (d) a sunny open place
  30. 30.⚖️ 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
  31. 31.🕰️ What is a sundial used for? (a) making rainbows (b) measuring rain (c) telling the time (d) weighing things
  32. 32.🔦 Which of these is opaque? (a) frosted glass (b) your hand (c) clear glass (d) butter paper
  33. 33.🔍 Which is the odd one out? (a) air (b) clear plastic film (c) clean water (d) a wooden board
  34. 34.🔮 Predict: on a fully cloudy day, the sundial ___. (a) shows two times (b) works better (c) does not work well (d) runs faster
  35. 35.⚖️ Fair test — how does the shadow of a stick change through the day? True or false: the stick kept upright is what we measure. (a) True (b) False
  36. 36.🧺 Three of these are needed for the shadow clock. Which one is NOT needed? (a) a straight stick (b) chalk to mark shadows (c) turmeric powder (d) a clock to check
  37. 37.🔮 Predict: you move a torch closer to your hand. The shadow on the wall gets ___. (a) coloured (b) brighter (c) bigger (d) smaller
  38. 38.True or false: a mirror is needed for the shadow clock. (a) False (b) True
  39. 39.📘 Why does a shadow form? (a) an object blocks light (b) the object is cold (c) light bends round it (d) the ground is dark
  40. 40.True or false: a clock to check is not needed for the shadow clock. (a) True (b) False

Answer key

  1. True
  2. False
  3. turmeric powder
  4. a battery cell
  5. look straight at the Sun
  6. clear plastic film
  7. Earth keeps spinning
  8. a straight stick
  9. True
  10. True
  11. clear glass
  12. oily paper
  13. a mirror
  14. we measure it
  15. west
  16. frosted glass
  17. False
  18. the time of day
  19. yeast
  20. a steel plate
  21. transparent
  22. True
  23. long
  24. needed
  25. a magnet
  26. transparent
  27. False
  28. True
  29. a sunny open place
  30. we change it
  31. telling the time
  32. your hand
  33. a wooden board
  34. does not work well
  35. False
  36. turmeric powder
  37. bigger
  38. False
  39. an object blocks light
  40. False

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