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Shadow and Sundial Experiment Worksheet

Science experiments lesson 27: Shadows and a sundial · Set 225 · 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.🧺 Three of these are needed for the shadow clock. Which one is NOT needed? (a) chalk to mark shadows (b) turmeric powder (c) a sunny open place (d) a straight stick
  2. 2.⚖️ Fair test — how does the shadow of a stick change through the day? Which of these is kept the same? (a) the time of day (b) the same spot (c) shadow length
  3. 3.🛟 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
  4. 4.🧺 Three of these are needed for the shadow clock. Which one is NOT needed? (a) a sunny open place (b) a balloon (c) a straight stick (d) chalk to mark shadows
  5. 5.🧺 Do we need yeast for the shadow clock? (a) not needed (b) needed
  6. 6.True or false: your hand is transparent. (a) True (b) False
  7. 7.🛟 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
  8. 8.📘 Why does a shadow form? (a) an object blocks light (b) the ground is dark (c) light bends round it (d) the object is cold
  9. 9.🔦 Which of these is transparent? (a) your hand (b) a brick (c) clear plastic film (d) a steel plate
  10. 10.True or false: yeast is not needed for the shadow clock. (a) False (b) True
  11. 11.🧺 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 mirror
  12. 12.⚖️ 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) shadow length (c) the stick kept upright (d) the time of day
  13. 13.🧺 Which of these is not needed for the shadow clock? (a) a clock to check (b) a straight stick (c) a sunny open place (d) a magnet
  14. 14.🔦 Is butter paper opaque, translucent or transparent? (a) transparent (b) opaque (c) translucent
  15. 15.🧺 Do we need a straight stick for the shadow clock? (a) needed (b) not needed
  16. 16.🧺 Do we need turmeric powder for the shadow clock? (a) not needed (b) needed
  17. 17.🧺 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 battery cell (d) chalk to mark shadows
  18. 18.🔍 Which is the odd one out? (a) oily paper (b) clean water (c) clear plastic film (d) clear glass
  19. 19.🔍 Which is the odd one out? (a) clear plastic film (b) a wooden board (c) a brick (d) a book
  20. 20.🔮 Predict: you move a torch closer to your hand. The shadow on the wall gets ___. (a) coloured (b) bigger (c) smaller (d) brighter
  21. 21.🕰️ What is a sundial used for? (a) making rainbows (b) measuring rain (c) telling the time (d) weighing things
  22. 22.🧺 Do we need a sunny open place for the shadow clock? (a) not needed (b) needed
  23. 23.🌍 Why does the stick’s shadow move during the day? (a) the stick walks (b) the stick grows (c) the ground slides (d) Earth keeps spinning
  24. 24.🔦 Is frosted glass opaque, translucent or transparent? (a) translucent (b) transparent (c) opaque
  25. 25.⚖️ Fair test — how does the shadow of a stick change through the day? True or false: the same spot is kept the same. (a) False (b) True
  26. 26.True or false: a steel plate is translucent. (a) False (b) True
  27. 27.True or false: clear plastic film is transparent. (a) True (b) False
  28. 28.True or false: chalk to mark shadows is needed for the shadow clock. (a) True (b) False
  29. 29.True or false: clean water is transparent. (a) False (b) True
  30. 30.⚖️ Fair test — how does the shadow of a stick change through the day? Which of these is what we measure? (a) the time of day (b) shadow length (c) the same spot (d) the stick kept upright
  31. 31.🔮 Predict: on a fully cloudy day, the sundial ___. (a) runs faster (b) does not work well (c) shows two times (d) works better
  32. 32.⚖️ 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
  33. 33.🔦 Which of these is opaque? (a) clear glass (b) clean water (c) oily paper (d) a wooden board
  34. 34.True or false: a steel plate is opaque. (a) False (b) True
  35. 35.🔦 Is air opaque, translucent or transparent? (a) translucent (b) transparent (c) opaque
  36. 36.🔍 Which is the odd one out? (a) a brick (b) air (c) clean water (d) clear glass
  37. 37.🔦 Which of these is translucent? (a) a brick (b) clean water (c) clear glass (d) butter paper
  38. 38.True or false: a mirror is not needed for the shadow clock. (a) False (b) True
  39. 39.True or false: a sunny open place is not needed for the shadow clock. (a) False (b) True
  40. 40.⚖️ Fair test — how does the shadow of a stick change through the day? What do we do with “the same spot”? (a) we keep it the same (b) we change it (c) we measure it

Answer key

  1. turmeric powder
  2. the same spot
  3. look straight at the Sun
  4. a balloon
  5. not needed
  6. False
  7. a cap or hat
  8. an object blocks light
  9. clear plastic film
  10. True
  11. a mirror
  12. the time of day
  13. a magnet
  14. translucent
  15. needed
  16. not needed
  17. a battery cell
  18. oily paper
  19. clear plastic film
  20. bigger
  21. telling the time
  22. needed
  23. Earth keeps spinning
  24. translucent
  25. True
  26. False
  27. True
  28. True
  29. True
  30. shadow length
  31. does not work well
  32. we keep it the same
  33. a wooden board
  34. True
  35. transparent
  36. a brick
  37. butter paper
  38. True
  39. False
  40. we keep it the same

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