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Shadow and Sundial Experiment Worksheet

Science experiments lesson 27: Shadows and a sundial · Set 285 · 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.🔍 Which is the odd one out? (a) air (b) oily paper (c) tissue paper (d) butter paper
  2. 2.🔦 Which of these is transparent? (a) your hand (b) a steel plate (c) a brick (d) clear glass
  3. 3.🧺 Which of these is needed for the shadow clock? (a) a mirror (b) a balloon (c) a sunny open place (d) a magnet
  4. 4.True or false: yeast is not needed for the shadow clock. (a) False (b) True
  5. 5.⚖️ Fair test — how does the shadow of a stick change through the day? Which of these is the one thing we change? (a) shadow length (b) the same spot (c) the time of day (d) the same stick
  6. 6.🔍 Which is the odd one out? (a) tissue paper (b) butter paper (c) a book (d) frosted glass
  7. 7.⚖️ 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) the same stick (c) the same spot (d) shadow length
  8. 8.🔦 Which of these is opaque? (a) a book (b) clear glass (c) clean water (d) air
  9. 9.⚖️ Fair test — how does the shadow of a stick change through the day? Which of these is kept the same? (a) shadow length (b) the time of day (c) the stick kept upright
  10. 10.🧺 Do we need a balloon for the shadow clock? (a) not needed (b) needed
  11. 11.🔮 Predict: on a fully cloudy day, the sundial ___. (a) works better (b) does not work well (c) runs faster (d) shows two times
  12. 12.🔦 Is a book opaque, translucent or transparent? (a) transparent (b) translucent (c) opaque
  13. 13.🌍 Why does the stick’s shadow move during the day? (a) the ground slides (b) the stick walks (c) Earth keeps spinning (d) the stick grows
  14. 14.🔦 Is tissue paper opaque, translucent or transparent? (a) translucent (b) opaque (c) transparent
  15. 15.🔮 Predict: the Sun is low in the evening sky. The stick’s shadow is ___. (a) long (b) missing (c) short (d) round
  16. 16.🔍 Which is the odd one out? (a) a brick (b) a wooden board (c) butter paper (d) a book
  17. 17.True or false: a battery cell is needed for the shadow clock. (a) True (b) False
  18. 18.🛟 What should you wear for a long time in the hot sun? (a) nothing on your head (b) a cap or hat (c) a raincoat (d) a woollen sweater
  19. 19.🧺 Which of these is not needed for the shadow clock? (a) chalk to mark shadows (b) a sunny open place (c) a straight stick (d) a balloon
  20. 20.🧺 Do we need a mirror for the shadow clock? (a) needed (b) not needed
  21. 21.🧺 Three of these are needed for the shadow clock. Which one is NOT needed? (a) a battery cell (b) a clock to check (c) a straight stick (d) chalk to mark shadows
  22. 22.🛟 While watching shadows outdoors, what must you never do? (a) wear a cap (b) look straight at the Sun (c) mark with chalk (d) sit in the shade
  23. 23.🧺 Which of these is not needed for the shadow clock? (a) a battery cell (b) a clock to check (c) a straight stick (d) chalk to mark shadows
  24. 24.True or false: a mirror is needed for the shadow clock. (a) False (b) True
  25. 25.⚖️ Fair test — how does the shadow of a stick change through the day? True or false: the same spot is the one thing we change. (a) True (b) False
  26. 26.📘 Why does a shadow form? (a) light bends round it (b) an object blocks light (c) the object is cold (d) the ground is dark
  27. 27.🔦 Which of these is translucent? (a) frosted glass (b) clear glass (c) air (d) a wooden board
  28. 28.⚖️ Fair test — how does the shadow of a stick change through the day? True or false: the stick kept upright is the one thing we change. (a) True (b) False
  29. 29.🔦 Which of these is translucent? (a) clean water (b) butter paper (c) a wooden board (d) clear plastic film
  30. 30.🌅 In the morning the Sun is in the east. Which way does a shadow point? (a) up (b) west (c) north (d) east
  31. 31.🔦 Is a brick opaque, translucent or transparent? (a) opaque (b) translucent (c) transparent
  32. 32.🧺 Do we need chalk to mark shadows for the shadow clock? (a) not needed (b) needed
  33. 33.⚖️ Fair test — how does the shadow of a stick change through the day? True or false: shadow length is the one thing we change. (a) True (b) False
  34. 34.True or false: clean water is translucent. (a) False (b) True
  35. 35.🔍 Which is the odd one out? (a) oily paper (b) clear glass (c) air (d) clean water
  36. 36.🔦 Which of these is transparent? (a) a steel plate (b) your hand (c) clear plastic film (d) a book
  37. 37.True or false: clear plastic film is opaque. (a) True (b) False
  38. 38.🧺 Do we need a battery cell for the shadow clock? (a) not needed (b) needed
  39. 39.🔦 Which of these is opaque? (a) tissue paper (b) clear plastic film (c) a steel plate (d) air
  40. 40.True or false: turmeric powder is needed for the shadow clock. (a) True (b) False

Answer key

  1. air
  2. clear glass
  3. a sunny open place
  4. True
  5. the time of day
  6. a book
  7. shadow length
  8. a book
  9. the stick kept upright
  10. not needed
  11. does not work well
  12. opaque
  13. Earth keeps spinning
  14. translucent
  15. long
  16. butter paper
  17. False
  18. a cap or hat
  19. a balloon
  20. not needed
  21. a battery cell
  22. look straight at the Sun
  23. a battery cell
  24. False
  25. False
  26. an object blocks light
  27. frosted glass
  28. False
  29. butter paper
  30. west
  31. opaque
  32. needed
  33. False
  34. False
  35. oily paper
  36. clear plastic film
  37. False
  38. not needed
  39. a steel plate
  40. False

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