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Shadow and Sundial Experiment Worksheet

Science experiments lesson 27: Shadows and a sundial · Set 611 · 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 the one thing we change? (a) the same stick (b) the time of day (c) the stick kept upright (d) shadow length
  2. 2.True or false: a wooden board is opaque. (a) False (b) True
  3. 3.True or false: clear glass is transparent. (a) False (b) True
  4. 4.🔦 Is clean water opaque, translucent or transparent? (a) translucent (b) transparent (c) opaque
  5. 5.🔮 Predict: you move a torch closer to your hand. The shadow on the wall gets ___. (a) smaller (b) brighter (c) coloured (d) bigger
  6. 6.🕰️ What is a sundial used for? (a) making rainbows (b) telling the time (c) measuring rain (d) weighing things
  7. 7.🌍 Why does the stick’s shadow move during the day? (a) the stick grows (b) the ground slides (c) the stick walks (d) Earth keeps spinning
  8. 8.⚖️ Fair test — how does the shadow of a stick change through the day? What do we do with “the same spot”? (a) we change it (b) we measure it (c) we keep it the same
  9. 9.🧺 Which of these is not needed for the shadow clock? (a) a battery cell (b) a sunny open place (c) a straight stick (d) a clock to check
  10. 10.🧺 Three of these are needed for the shadow clock. Which one is NOT needed? (a) yeast (b) chalk to mark shadows (c) a straight stick (d) a sunny open place
  11. 11.True or false: oily paper is opaque. (a) True (b) False
  12. 12.🔍 Which is the odd one out? (a) a book (b) butter paper (c) oily paper (d) tissue paper
  13. 13.⚖️ 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) False (b) True
  14. 14.True or false: a clock to check is not needed for the shadow clock. (a) True (b) False
  15. 15.🔍 Which is the odd one out? (a) frosted glass (b) a wooden board (c) butter paper (d) tissue paper
  16. 16.True or false: a sunny open place is needed for the shadow clock. (a) True (b) False
  17. 17.🔦 Which of these is opaque? (a) frosted glass (b) a book (c) oily paper (d) clean water
  18. 18.🔦 Is a brick opaque, translucent or transparent? (a) opaque (b) transparent (c) translucent
  19. 19.🔦 Which of these is opaque? (a) a brick (b) air (c) clear plastic film (d) butter paper
  20. 20.🔍 Which is the odd one out? (a) clear plastic film (b) clear glass (c) frosted glass (d) clean water
  21. 21.⚖️ 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
  22. 22.🧺 Three of these are needed for the shadow clock. Which one is NOT needed? (a) a mirror (b) a clock to check (c) a sunny open place (d) chalk to mark shadows
  23. 23.🧺 Do we need a balloon for the shadow clock? (a) needed (b) not needed
  24. 24.True or false: your hand is translucent. (a) True (b) False
  25. 25.⚖️ Fair test — how does the shadow of a stick change through the day? What do we do with “the time of day”? (a) we change it (b) we measure it (c) we keep it the same
  26. 26.🔍 Which is the odd one out? (a) a steel plate (b) a wooden board (c) a book (d) clear glass
  27. 27.🔮 Predict: the Sun is low in the evening sky. The stick’s shadow is ___. (a) missing (b) round (c) short (d) long
  28. 28.🔦 Is a wooden board opaque, translucent or transparent? (a) translucent (b) opaque (c) transparent
  29. 29.🧺 Which of these is needed for the shadow clock? (a) a magnet (b) a battery cell (c) chalk to mark shadows (d) a mirror
  30. 30.🛟 What should you wear for a long time in the hot sun? (a) a raincoat (b) a woollen sweater (c) nothing on your head (d) a cap or hat
  31. 31.True or false: clear glass is opaque. (a) True (b) False
  32. 32.True or false: a book is transparent. (a) False (b) True
  33. 33.🛟 While watching shadows outdoors, what must you never do? (a) sit in the shade (b) mark with chalk (c) look straight at the Sun (d) wear a cap
  34. 34.🔦 Which of these is opaque? (a) your hand (b) clear glass (c) tissue paper (d) butter paper
  35. 35.⚖️ Fair test — how does the shadow of a stick change through the day? Which of these is what we measure? (a) the stick kept upright (b) the same stick (c) shadow length (d) the same spot
  36. 36.🔦 Is butter paper opaque, translucent or transparent? (a) opaque (b) translucent (c) transparent
  37. 37.True or false: butter paper is translucent. (a) True (b) False
  38. 38.⚖️ 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 same stick
  39. 39.🧺 Which of these is not needed for the shadow clock? (a) a straight stick (b) a balloon (c) a sunny open place (d) a clock to check
  40. 40.🔦 Which of these is translucent? (a) a brick (b) air (c) butter paper (d) clear plastic film

Answer key

  1. the time of day
  2. True
  3. True
  4. transparent
  5. bigger
  6. telling the time
  7. Earth keeps spinning
  8. we keep it the same
  9. a battery cell
  10. yeast
  11. False
  12. a book
  13. False
  14. False
  15. a wooden board
  16. True
  17. a book
  18. opaque
  19. a brick
  20. frosted glass
  21. False
  22. a mirror
  23. not needed
  24. False
  25. we change it
  26. clear glass
  27. long
  28. opaque
  29. chalk to mark shadows
  30. a cap or hat
  31. False
  32. False
  33. look straight at the Sun
  34. your hand
  35. shadow length
  36. translucent
  37. True
  38. the same stick
  39. a balloon
  40. butter paper

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