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Shadow and Sundial Experiment Worksheet

Science experiments lesson 27: Shadows and a sundial · Set 203 · 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.

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  1. 1.🧺 Do we need a straight stick for the shadow clock? (a) needed (b) not needed
  2. 2.True or false: a sunny open place is not needed for the shadow clock. (a) True (b) False
  3. 3.🧺 Which of these is needed for the shadow clock? (a) chalk to mark shadows (b) a balloon (c) turmeric powder (d) a magnet
  4. 4.🌍 Why does the stick’s shadow move during the day? (a) the stick grows (b) the ground slides (c) Earth keeps spinning (d) the stick walks
  5. 5.True or false: a steel plate is transparent. (a) True (b) False
  6. 6.True or false: clean water is translucent. (a) False (b) True
  7. 7.🧺 Do we need a mirror for the shadow clock? (a) needed (b) not needed
  8. 8.🧺 Do we need a magnet for the shadow clock? (a) needed (b) not needed
  9. 9.⚖️ 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 spot (c) shadow length (d) the same stick
  10. 10.🧺 Do we need a sunny open place for the shadow clock? (a) not needed (b) needed
  11. 11.🔦 Which of these is opaque? (a) butter paper (b) a brick (c) air (d) clear glass
  12. 12.🧺 Which of these is not needed for the shadow clock? (a) a magnet (b) a clock to check (c) chalk to mark shadows (d) a sunny open place
  13. 13.🔦 Is your hand opaque, translucent or transparent? (a) translucent (b) opaque (c) transparent
  14. 14.🔦 Which of these is transparent? (a) a book (b) clear glass (c) a brick (d) your hand
  15. 15.🧺 Do we need a battery cell for the shadow clock? (a) needed (b) not needed
  16. 16.🛟 While watching shadows outdoors, what must you never do? (a) sit in the shade (b) mark with chalk (c) wear a cap (d) look straight at the Sun
  17. 17.⚖️ 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) the same spot (c) shadow length
  18. 18.🧺 Three of these are needed for the shadow clock. Which one is NOT needed? (a) a magnet (b) a clock to check (c) a straight stick (d) a sunny open place
  19. 19.True or false: a clock to check is not needed for the shadow clock. (a) True (b) False
  20. 20.🧺 Do we need a balloon for the shadow clock? (a) needed (b) not needed
  21. 21.🔮 Predict: you move a torch closer to your hand. The shadow on the wall gets ___. (a) coloured (b) brighter (c) smaller (d) bigger
  22. 22.⚖️ Fair test — how does the shadow of a stick change through the day? What do we do with “the time of day”? (a) we keep it the same (b) we measure it (c) we change it
  23. 23.🌅 In the morning the Sun is in the east. Which way does a shadow point? (a) up (b) north (c) west (d) east
  24. 24.True or false: air is translucent. (a) True (b) False
  25. 25.⚖️ 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) False (b) True
  26. 26.🧺 Which of these is not needed for the shadow clock? (a) chalk to mark shadows (b) a balloon (c) a sunny open place (d) a straight stick
  27. 27.🔦 Which of these is translucent? (a) a brick (b) clear plastic film (c) oily paper (d) a wooden board
  28. 28.🔍 Which is the odd one out? (a) a wooden board (b) a steel plate (c) butter paper (d) a book
  29. 29.True or false: a magnet is not needed for the shadow clock. (a) True (b) False
  30. 30.⚖️ Fair test — how does the shadow of a stick change through the day? True or false: the same stick is what we measure. (a) True (b) False
  31. 31.🧺 Three of these are needed for the shadow clock. Which one is NOT needed? (a) a straight stick (b) turmeric powder (c) chalk to mark shadows (d) a sunny open place
  32. 32.🔦 Is air opaque, translucent or transparent? (a) opaque (b) transparent (c) translucent
  33. 33.🧺 Do we need chalk to mark shadows for the shadow clock? (a) needed (b) not needed
  34. 34.⚖️ Fair test — how does the shadow of a stick change through the day? True or false: the same spot is what we measure. (a) True (b) False
  35. 35.🔍 Which is the odd one out? (a) a wooden board (b) a book (c) frosted glass (d) a brick
  36. 36.⚖️ 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
  37. 37.⚖️ 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) the same stick (c) shadow length
  38. 38.🛟 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
  39. 39.🧺 Which of these is not needed for the shadow clock? (a) a straight stick (b) chalk to mark shadows (c) a sunny open place (d) yeast
  40. 40.True or false: turmeric powder is needed for the shadow clock. (a) False (b) True

Answer key

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

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