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Shadow and Sundial Experiment Worksheet

Science experiments lesson 27: Shadows and a sundial · Set 486 · 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 sunny open place is needed for the shadow clock. (a) False (b) True
  2. 2.🔦 Is butter paper opaque, translucent or transparent? (a) translucent (b) opaque (c) transparent
  3. 3.⚖️ Fair test — how does the shadow of a stick change through the day? What do we do with “the stick kept upright”? (a) we change it (b) we measure it (c) we keep it the same
  4. 4.🔮 Predict: you move a torch closer to your hand. The shadow on the wall gets ___. (a) bigger (b) coloured (c) smaller (d) brighter
  5. 5.🧺 Three of these are needed for the shadow clock. Which one is NOT needed? (a) a straight stick (b) a magnet (c) a clock to check (d) a sunny open place
  6. 6.🛟 While watching shadows outdoors, what must you never do? (a) mark with chalk (b) wear a cap (c) look straight at the Sun (d) sit in the shade
  7. 7.🔦 Is a brick opaque, translucent or transparent? (a) transparent (b) opaque (c) translucent
  8. 8.🧺 Do we need a battery cell for the shadow clock? (a) not needed (b) needed
  9. 9.🧺 Which of these is needed for the shadow clock? (a) a magnet (b) yeast (c) a battery cell (d) chalk to mark shadows
  10. 10.⚖️ 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) True (b) False
  11. 11.🧺 Which of these is not needed for the shadow clock? (a) chalk to mark shadows (b) a clock to check (c) turmeric powder (d) a straight stick
  12. 12.🛟 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
  13. 13.True or false: a straight stick is not needed for the shadow clock. (a) True (b) False
  14. 14.🔦 Is a wooden board opaque, translucent or transparent? (a) translucent (b) opaque (c) transparent
  15. 15.🧺 Three of these are needed for the shadow clock. Which one is NOT needed? (a) a straight stick (b) yeast (c) a clock to check (d) chalk to mark shadows
  16. 16.🧺 Do we need a straight stick for the shadow clock? (a) not needed (b) needed
  17. 17.🧺 Three of these are needed for the shadow clock. Which one is NOT needed? (a) a sunny open place (b) chalk to mark shadows (c) a balloon (d) a straight stick
  18. 18.True or false: tissue paper is translucent. (a) False (b) True
  19. 19.🧺 Which of these is needed for the shadow clock? (a) yeast (b) a mirror (c) a straight stick (d) a magnet
  20. 20.⚖️ Fair test — how does the shadow of a stick change through the day? True or false: shadow length is what we measure. (a) False (b) True
  21. 21.🧺 Three of these are needed for the shadow clock. Which one is NOT needed? (a) a straight stick (b) chalk to mark shadows (c) a sunny open place (d) a battery cell
  22. 22.⚖️ Fair test — how does the shadow of a stick change through the day? Which of these is kept the same? (a) the same spot (b) shadow length (c) the time of day
  23. 23.🧺 Do we need yeast for the shadow clock? (a) not needed (b) needed
  24. 24.🔍 Which is the odd one out? (a) clear glass (b) air (c) clear plastic film (d) butter paper
  25. 25.True or false: chalk to mark shadows is not needed for the shadow clock. (a) False (b) True
  26. 26.🧺 Three of these are needed for the shadow clock. Which one is NOT needed? (a) a straight stick (b) turmeric powder (c) a sunny open place (d) a clock to check
  27. 27.🔦 Which of these is translucent? (a) air (b) your hand (c) clear glass (d) frosted glass
  28. 28.🔍 Which is the odd one out? (a) oily paper (b) tissue paper (c) butter paper (d) your hand
  29. 29.🧺 Which of these is needed for the shadow clock? (a) a sunny open place (b) a balloon (c) turmeric powder (d) yeast
  30. 30.True or false: a balloon is not needed for the shadow clock. (a) False (b) True
  31. 31.🔮 Predict: the Sun is low in the evening sky. The stick’s shadow is ___. (a) short (b) missing (c) long (d) round
  32. 32.🔦 Is clear glass opaque, translucent or transparent? (a) transparent (b) translucent (c) opaque
  33. 33.🔍 Which is the odd one out? (a) oily paper (b) a wooden board (c) frosted glass (d) tissue paper
  34. 34.🌅 In the morning the Sun is in the east. Which way does a shadow point? (a) north (b) east (c) west (d) up
  35. 35.🧺 Do we need a sunny open place for the shadow clock? (a) not needed (b) needed
  36. 36.⚖️ Fair test — how does the shadow of a stick change through the day? True or false: the same spot is what we measure. (a) False (b) True
  37. 37.True or false: frosted glass is translucent. (a) False (b) True
  38. 38.True or false: a wooden board is translucent. (a) False (b) True
  39. 39.⚖️ Fair test — how does the shadow of a stick change through the day? True or false: shadow length is kept the same. (a) False (b) True
  40. 40.True or false: turmeric powder is needed for the shadow clock. (a) True (b) False

Answer key

  1. True
  2. translucent
  3. we keep it the same
  4. bigger
  5. a magnet
  6. look straight at the Sun
  7. opaque
  8. not needed
  9. chalk to mark shadows
  10. True
  11. turmeric powder
  12. a cap or hat
  13. False
  14. opaque
  15. yeast
  16. needed
  17. a balloon
  18. True
  19. a straight stick
  20. True
  21. a battery cell
  22. the same spot
  23. not needed
  24. butter paper
  25. False
  26. turmeric powder
  27. frosted glass
  28. your hand
  29. a sunny open place
  30. True
  31. long
  32. transparent
  33. a wooden board
  34. west
  35. needed
  36. False
  37. True
  38. False
  39. False
  40. False

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