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Shadow and Sundial Experiment Worksheet

Science experiments lesson 27: Shadows and a sundial · Set 955 · 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 mirror is needed for the shadow clock. (a) False (b) True
  2. 2.🧺 Do we need turmeric powder for the shadow clock? (a) not needed (b) needed
  3. 3.🌍 Why does the stick’s shadow move during the day? (a) Earth keeps spinning (b) the stick walks (c) the ground slides (d) the stick grows
  4. 4.🌅 In the morning the Sun is in the east. Which way does a shadow point? (a) up (b) east (c) north (d) west
  5. 5.🔍 Which is the odd one out? (a) a brick (b) a book (c) a wooden board (d) butter paper
  6. 6.🔦 Which of these is opaque? (a) air (b) frosted glass (c) clean water (d) a wooden board
  7. 7.🔦 Is your hand opaque, translucent or transparent? (a) translucent (b) opaque (c) transparent
  8. 8.True or false: clear glass is transparent. (a) False (b) True
  9. 9.True or false: your hand is opaque. (a) True (b) False
  10. 10.🧺 Which of these is needed for the shadow clock? (a) turmeric powder (b) a mirror (c) a straight stick (d) a balloon
  11. 11.⚖️ Fair test — how does the shadow of a stick change through the day? Which of these is what we measure? (a) the same spot (b) the time of day (c) shadow length (d) the stick kept upright
  12. 12.🛟 While watching shadows outdoors, what must you never do? (a) mark with chalk (b) wear a cap (c) sit in the shade (d) look straight at the Sun
  13. 13.True or false: chalk to mark shadows is not needed for the shadow clock. (a) True (b) False
  14. 14.🧺 Do we need chalk to mark shadows for the shadow clock? (a) needed (b) not needed
  15. 15.🧺 Do we need a mirror for the shadow clock? (a) needed (b) not needed
  16. 16.🔦 Is a steel plate opaque, translucent or transparent? (a) transparent (b) translucent (c) opaque
  17. 17.🧺 Do we need a straight stick for the shadow clock? (a) needed (b) not needed
  18. 18.True or false: a clock to check is needed for the shadow clock. (a) True (b) False
  19. 19.⚖️ 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
  20. 20.🧺 Three of these are needed for the shadow clock. Which one is NOT needed? (a) chalk to mark shadows (b) a straight stick (c) a balloon (d) a sunny open place
  21. 21.🛟 What should you wear for a long time in the hot sun? (a) a raincoat (b) nothing on your head (c) a cap or hat (d) a woollen sweater
  22. 22.🧺 Which of these is not needed for the shadow clock? (a) a sunny open place (b) a straight stick (c) a magnet (d) a clock to check
  23. 23.🔦 Which of these is translucent? (a) a wooden board (b) a brick (c) clean water (d) frosted glass
  24. 24.True or false: your hand is translucent. (a) False (b) True
  25. 25.True or false: a wooden board is opaque. (a) False (b) True
  26. 26.⚖️ Fair test — how does the shadow of a stick change through the day? True or false: the time of day is the one thing we change. (a) True (b) False
  27. 27.🔦 Which of these is transparent? (a) a steel plate (b) your hand (c) clear plastic film (d) oily paper
  28. 28.🧺 Three of these are needed for the shadow clock. Which one is NOT needed? (a) chalk to mark shadows (b) a sunny open place (c) a clock to check (d) a battery cell
  29. 29.🔦 Is tissue paper opaque, translucent or transparent? (a) transparent (b) opaque (c) translucent
  30. 30.📘 Why does a shadow form? (a) an object blocks light (b) light bends round it (c) the object is cold (d) the ground is dark
  31. 31.⚖️ 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
  32. 32.True or false: a sunny open place is not needed for the shadow clock. (a) True (b) False
  33. 33.⚖️ Fair test — how does the shadow of a stick change through the day? What do we do with “the stick kept upright”? (a) we keep it the same (b) we measure it (c) we change it
  34. 34.⚖️ 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
  35. 35.🧺 Three of these are needed for the shadow clock. Which one is NOT needed? (a) turmeric powder (b) a straight stick (c) a clock to check (d) a sunny open place
  36. 36.True or false: oily paper is opaque. (a) True (b) False
  37. 37.True or false: a battery cell is needed for the shadow clock. (a) False (b) True
  38. 38.⚖️ 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
  39. 39.⚖️ Fair test — how does the shadow of a stick change through the day? True or false: the same stick is the one thing we change. (a) True (b) False
  40. 40.True or false: a straight stick is needed for the shadow clock. (a) True (b) False

Answer key

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

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