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Shadow and Sundial Experiment Worksheet

Science experiments lesson 27: Shadows and a sundial · Set 233 · 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? Which of these is kept the same? (a) shadow length (b) the same spot (c) the time of day
  2. 2.🔦 Which of these is opaque? (a) butter paper (b) frosted glass (c) your hand (d) clear glass
  3. 3.🧺 Do we need a magnet for the shadow clock? (a) needed (b) not needed
  4. 4.⚖️ 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) shadow length (c) the stick kept upright
  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.🕰️ What is a sundial used for? (a) telling the time (b) weighing things (c) measuring rain (d) making rainbows
  7. 7.🧺 Do we need a sunny open place for the shadow clock? (a) needed (b) not needed
  8. 8.True or false: a mirror is not needed for the shadow clock. (a) True (b) False
  9. 9.⚖️ Fair test — how does the shadow of a stick change through the day? True or false: the time of day is kept the same. (a) True (b) False
  10. 10.📘 Why does a shadow form? (a) the object is cold (b) the ground is dark (c) light bends round it (d) an object blocks light
  11. 11.🔍 Which is the odd one out? (a) air (b) a steel plate (c) a brick (d) a wooden board
  12. 12.🔮 Predict: the Sun is low in the evening sky. The stick’s shadow is ___. (a) short (b) round (c) missing (d) long
  13. 13.True or false: frosted glass is translucent. (a) False (b) True
  14. 14.🛟 What should you wear for a long time in the hot sun? (a) nothing on your head (b) a woollen sweater (c) a cap or hat (d) a raincoat
  15. 15.⚖️ 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 stick kept upright (d) the time of day
  16. 16.🔍 Which is the odd one out? (a) a steel plate (b) a book (c) tissue paper (d) your hand
  17. 17.True or false: a straight stick is not needed for the shadow clock. (a) False (b) True
  18. 18.⚖️ Fair test — how does the shadow of a stick change through the day? True or false: shadow length is what we measure. (a) True (b) False
  19. 19.🧺 Which of these is not needed for the shadow clock? (a) a straight stick (b) a battery cell (c) a sunny open place (d) a clock to check
  20. 20.🛟 While watching shadows outdoors, what must you never do? (a) mark with chalk (b) sit in the shade (c) look straight at the Sun (d) wear a cap
  21. 21.🧺 Do we need a mirror for the shadow clock? (a) needed (b) not needed
  22. 22.🔍 Which is the odd one out? (a) clean water (b) oily paper (c) clear plastic film (d) air
  23. 23.🧺 Which of these is needed for the shadow clock? (a) a magnet (b) a battery cell (c) a clock to check (d) yeast
  24. 24.🔦 Is a brick opaque, translucent or transparent? (a) translucent (b) opaque (c) transparent
  25. 25.🔍 Which is the odd one out? (a) frosted glass (b) oily paper (c) butter paper (d) clear glass
  26. 26.🧺 Do we need a balloon for the shadow clock? (a) not needed (b) needed
  27. 27.🔍 Which is the odd one out? (a) a book (b) a steel plate (c) butter paper (d) a brick
  28. 28.🧺 Do we need turmeric powder for the shadow clock? (a) needed (b) not needed
  29. 29.🔍 Which is the odd one out? (a) clean water (b) clear glass (c) clear plastic film (d) a steel plate
  30. 30.🔦 Which of these is transparent? (a) clean water (b) a book (c) a wooden board (d) a steel plate
  31. 31.🔦 Is clear glass opaque, translucent or transparent? (a) opaque (b) transparent (c) translucent
  32. 32.🔦 Which of these is opaque? (a) air (b) clear plastic film (c) frosted glass (d) a steel plate
  33. 33.True or false: a clock to check is needed for the shadow clock. (a) True (b) False
  34. 34.⚖️ 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 measure it (c) we keep it the same
  35. 35.🔍 Which is the odd one out? (a) a brick (b) tissue paper (c) butter paper (d) frosted glass
  36. 36.🧺 Which of these is not needed for the shadow clock? (a) a straight stick (b) a magnet (c) a clock to check (d) a sunny open place
  37. 37.⚖️ 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 measure it (c) we change it
  38. 38.⚖️ Fair test — how does the shadow of a stick change through the day? True or false: the same stick is what we measure. (a) False (b) True
  39. 39.🔦 Is a steel plate opaque, translucent or transparent? (a) translucent (b) opaque (c) transparent
  40. 40.🔦 Is oily paper opaque, translucent or transparent? (a) transparent (b) opaque (c) translucent

Answer key

  1. the same spot
  2. your hand
  3. not needed
  4. the stick kept upright
  5. False
  6. telling the time
  7. needed
  8. True
  9. False
  10. an object blocks light
  11. air
  12. long
  13. True
  14. a cap or hat
  15. the time of day
  16. tissue paper
  17. False
  18. True
  19. a battery cell
  20. look straight at the Sun
  21. not needed
  22. oily paper
  23. a clock to check
  24. opaque
  25. clear glass
  26. not needed
  27. butter paper
  28. not needed
  29. a steel plate
  30. clean water
  31. transparent
  32. a steel plate
  33. True
  34. we measure it
  35. a brick
  36. a magnet
  37. we keep it the same
  38. False
  39. opaque
  40. translucent

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