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Shadow and Sundial Experiment Worksheet

Science experiments lesson 27: Shadows and a sundial · Set 805 · 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.🧺 Three of these are needed for the shadow clock. Which one is NOT needed? (a) a clock to check (b) chalk to mark shadows (c) a mirror (d) a straight stick
  2. 2.🧺 Which of these is not needed for the shadow clock? (a) a straight stick (b) yeast (c) a clock to check (d) chalk to mark shadows
  3. 3.🧺 Do we need chalk to mark shadows for the shadow clock? (a) needed (b) not needed
  4. 4.⚖️ Fair test — how does the shadow of a stick change through the day? Which of these is the one thing we change? (a) the stick kept upright (b) the same spot (c) the time of day (d) the same stick
  5. 5.True or false: a brick is translucent. (a) True (b) False
  6. 6.True or false: your hand is opaque. (a) False (b) True
  7. 7.⚖️ 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
  8. 8.🌅 In the morning the Sun is in the east. Which way does a shadow point? (a) up (b) west (c) east (d) north
  9. 9.🔮 Predict: the Sun is low in the evening sky. The stick’s shadow is ___. (a) short (b) missing (c) round (d) long
  10. 10.🔦 Is clean water opaque, translucent or transparent? (a) opaque (b) translucent (c) transparent
  11. 11.True or false: tissue paper is translucent. (a) False (b) True
  12. 12.🔦 Is a brick opaque, translucent or transparent? (a) transparent (b) opaque (c) translucent
  13. 13.⚖️ Fair test — how does the shadow of a stick change through the day? What do we do with “the same spot”? (a) we keep it the same (b) we measure it (c) we change it
  14. 14.⚖️ Fair test — how does the shadow of a stick change through the day? True or false: the time of day is kept the same. (a) False (b) True
  15. 15.🧺 Do we need a balloon for the shadow clock? (a) needed (b) not needed
  16. 16.🔦 Is a wooden board opaque, translucent or transparent? (a) transparent (b) translucent (c) opaque
  17. 17.True or false: air is translucent. (a) False (b) True
  18. 18.🛟 While watching shadows outdoors, what must you never do? (a) look straight at the Sun (b) mark with chalk (c) wear a cap (d) sit in the shade
  19. 19.⚖️ 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
  20. 20.⚖️ 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) False (b) True
  21. 21.🔍 Which is the odd one out? (a) clear plastic film (b) clear glass (c) clean water (d) your hand
  22. 22.True or false: a sunny open place is not needed for the shadow clock. (a) False (b) True
  23. 23.🔮 Predict: on a fully cloudy day, the sundial ___. (a) shows two times (b) runs faster (c) works better (d) does not work well
  24. 24.⚖️ 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
  25. 25.🔮 Predict: you move a torch closer to your hand. The shadow on the wall gets ___. (a) smaller (b) coloured (c) bigger (d) brighter
  26. 26.🛟 What should you wear for a long time in the hot sun? (a) a woollen sweater (b) nothing on your head (c) a raincoat (d) a cap or hat
  27. 27.True or false: oily paper is transparent. (a) True (b) False
  28. 28.🧺 Which of these is needed for the shadow clock? (a) a battery cell (b) a straight stick (c) a mirror (d) a magnet
  29. 29.🧺 Three of these are needed for the shadow clock. Which one is NOT needed? (a) a sunny open place (b) turmeric powder (c) chalk to mark shadows (d) a straight stick
  30. 30.🧺 Do we need turmeric powder for the shadow clock? (a) needed (b) not needed
  31. 31.🔍 Which is the odd one out? (a) frosted glass (b) tissue paper (c) a wooden board (d) butter paper
  32. 32.True or false: a clock to check is not needed for the shadow clock. (a) False (b) True
  33. 33.🧺 Three of these are needed for the shadow clock. Which one is NOT needed? (a) a sunny open place (b) a battery cell (c) chalk to mark shadows (d) a clock to check
  34. 34.🧺 Which of these is not needed for the shadow clock? (a) a sunny open place (b) a clock to check (c) a balloon (d) chalk to mark shadows
  35. 35.🧺 Do we need a straight stick for the shadow clock? (a) needed (b) not needed
  36. 36.True or false: a brick is opaque. (a) False (b) True
  37. 37.🧺 Three of these are needed for the shadow clock. Which one is NOT needed? (a) a balloon (b) a straight stick (c) chalk to mark shadows (d) a sunny open place
  38. 38.🧺 Do we need a mirror for the shadow clock? (a) not needed (b) needed
  39. 39.True or false: clear plastic film is translucent. (a) False (b) True
  40. 40.📘 Why does a shadow form? (a) the ground is dark (b) an object blocks light (c) light bends round it (d) the object is cold

Answer key

  1. a mirror
  2. yeast
  3. needed
  4. the time of day
  5. False
  6. True
  7. we keep it the same
  8. west
  9. long
  10. transparent
  11. True
  12. opaque
  13. we keep it the same
  14. False
  15. not needed
  16. opaque
  17. False
  18. look straight at the Sun
  19. True
  20. True
  21. your hand
  22. False
  23. does not work well
  24. False
  25. bigger
  26. a cap or hat
  27. False
  28. a straight stick
  29. turmeric powder
  30. not needed
  31. a wooden board
  32. False
  33. a battery cell
  34. a balloon
  35. needed
  36. True
  37. a balloon
  38. not needed
  39. False
  40. an object blocks light

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