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Shadow and Sundial Experiment Worksheet

Science experiments lesson 27: Shadows and a sundial · Set 823 · 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? True or false: the same stick is kept the same. (a) False (b) True
  2. 2.🧺 Which of these is not needed for the shadow clock? (a) chalk to mark shadows (b) a straight stick (c) a clock to check (d) a magnet
  3. 3.True or false: butter paper is opaque. (a) True (b) False
  4. 4.🛟 While watching shadows outdoors, what must you never do? (a) sit in the shade (b) look straight at the Sun (c) mark with chalk (d) wear a cap
  5. 5.🔮 Predict: you move a torch closer to your hand. The shadow on the wall gets ___. (a) coloured (b) bigger (c) brighter (d) smaller
  6. 6.True or false: chalk to mark shadows is needed for the shadow clock. (a) False (b) True
  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) shadow length (c) the stick kept upright (d) the same stick
  8. 8.🔦 Which of these is opaque? (a) tissue paper (b) clear glass (c) your hand (d) frosted glass
  9. 9.🧺 Three of these are needed for the shadow clock. Which one is NOT needed? (a) yeast (b) a straight stick (c) a sunny open place (d) a clock to check
  10. 10.🧺 Which of these is needed for the shadow clock? (a) a balloon (b) a magnet (c) a sunny open place (d) yeast
  11. 11.True or false: a straight stick is not needed for the shadow clock. (a) False (b) True
  12. 12.True or false: a wooden board is transparent. (a) False (b) True
  13. 13.📘 Why does a shadow form? (a) the ground is dark (b) light bends round it (c) an object blocks light (d) the object is cold
  14. 14.True or false: a brick is opaque. (a) False (b) True
  15. 15.🧺 Three of these are needed for the shadow clock. Which one is NOT needed? (a) a straight stick (b) a balloon (c) a clock to check (d) a sunny open place
  16. 16.True or false: yeast is not needed for the shadow clock. (a) False (b) True
  17. 17.True or false: a sunny open place 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 kept the same. (a) True (b) False
  19. 19.🔮 Predict: the Sun is low in the evening sky. The stick’s shadow is ___. (a) missing (b) short (c) round (d) long
  20. 20.🔦 Which of these is opaque? (a) butter paper (b) clear plastic film (c) oily paper (d) a brick
  21. 21.True or false: a clock to check is needed for the shadow clock. (a) False (b) True
  22. 22.🧺 Which of these is needed for the shadow clock? (a) a battery cell (b) a balloon (c) a mirror (d) a straight stick
  23. 23.🧺 Which of these is not needed for the shadow clock? (a) chalk to mark shadows (b) a straight stick (c) a clock to check (d) turmeric powder
  24. 24.🧺 Do we need a battery cell for the shadow clock? (a) needed (b) not needed
  25. 25.🌅 In the morning the Sun is in the east. Which way does a shadow point? (a) north (b) up (c) west (d) east
  26. 26.🌍 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
  27. 27.True or false: a battery cell is not needed for the shadow clock. (a) False (b) True
  28. 28.🧺 Do we need a sunny open place for the shadow clock? (a) not needed (b) needed
  29. 29.🧺 Do we need a mirror for the shadow clock? (a) needed (b) not needed
  30. 30.⚖️ 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) False (b) True
  31. 31.⚖️ 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 same spot
  32. 32.🧺 Do we need chalk to mark shadows for the shadow clock? (a) needed (b) not needed
  33. 33.🧺 Which of these is not needed for the shadow clock? (a) a balloon (b) a straight stick (c) a sunny open place (d) a clock to check
  34. 34.🛟 What should you wear for a long time in the hot sun? (a) a cap or hat (b) nothing on your head (c) a raincoat (d) a woollen sweater
  35. 35.True or false: a battery cell is needed for the shadow clock. (a) False (b) True
  36. 36.🧺 Do we need turmeric powder for the shadow clock? (a) needed (b) not needed
  37. 37.🔍 Which is the odd one out? (a) air (b) clear plastic film (c) a steel plate (d) clear glass
  38. 38.True or false: a balloon is not needed for the shadow clock. (a) False (b) True
  39. 39.🔍 Which is the odd one out? (a) a book (b) butter paper (c) a brick (d) a steel plate
  40. 40.🔦 Which of these is opaque? (a) oily paper (b) clear plastic film (c) tissue paper (d) a book

Answer key

  1. True
  2. a magnet
  3. False
  4. look straight at the Sun
  5. bigger
  6. True
  7. shadow length
  8. your hand
  9. yeast
  10. a sunny open place
  11. False
  12. False
  13. an object blocks light
  14. True
  15. a balloon
  16. True
  17. False
  18. False
  19. long
  20. a brick
  21. True
  22. a straight stick
  23. turmeric powder
  24. not needed
  25. west
  26. Earth keeps spinning
  27. True
  28. needed
  29. not needed
  30. False
  31. the same spot
  32. needed
  33. a balloon
  34. a cap or hat
  35. False
  36. not needed
  37. a steel plate
  38. True
  39. butter paper
  40. a book

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