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Shadow and Sundial Experiment Worksheet

Science experiments lesson 27: Shadows and a sundial · Set 633 · 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.🧺 Which of these is needed for the shadow clock? (a) a battery cell (b) a mirror (c) chalk to mark shadows (d) turmeric powder
  2. 2.🔦 Is tissue paper opaque, translucent or transparent? (a) transparent (b) translucent (c) opaque
  3. 3.🧺 Which of these is needed for the shadow clock? (a) a straight stick (b) a balloon (c) turmeric powder (d) a mirror
  4. 4.🔦 Which of these is transparent? (a) tissue paper (b) a wooden board (c) a brick (d) air
  5. 5.⚖️ Fair test — how does the shadow of a stick change through the day? True or false: the same spot is kept the same. (a) True (b) False
  6. 6.🌞 When is a stick’s shadow the shortest? (a) around noon (b) early morning (c) at night (d) late evening
  7. 7.🧺 Three of these are needed for the shadow clock. Which one is NOT needed? (a) a battery cell (b) a sunny open place (c) a straight stick (d) a clock to check
  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 measure it (b) we keep it the same (c) we change it
  9. 9.True or false: oily paper is translucent. (a) False (b) True
  10. 10.⚖️ Fair test — how does the shadow of a stick change through the day? Which of these is kept the same? (a) the stick kept upright (b) shadow length (c) the time of day
  11. 11.True or false: butter paper is opaque. (a) True (b) False
  12. 12.🧺 Which of these is needed for the shadow clock? (a) a magnet (b) a mirror (c) yeast (d) a clock to check
  13. 13.🔮 Predict: the Sun is low in the evening sky. The stick’s shadow is ___. (a) long (b) short (c) missing (d) round
  14. 14.True or false: a sunny open place is not needed for the shadow clock. (a) False (b) True
  15. 15.⚖️ 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
  16. 16.📘 Why does a shadow form? (a) an object blocks light (b) the ground is dark (c) the object is cold (d) light bends round it
  17. 17.True or false: frosted glass is transparent. (a) True (b) False
  18. 18.🔍 Which is the odd one out? (a) air (b) clean water (c) clear glass (d) your hand
  19. 19.🧺 Do we need chalk to mark shadows for the shadow clock? (a) not needed (b) needed
  20. 20.⚖️ 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) False (b) True
  21. 21.🧺 Which of these is not needed for the shadow clock? (a) a clock to check (b) a magnet (c) a straight stick (d) a sunny open place
  22. 22.🔮 Predict: you move a torch closer to your hand. The shadow on the wall gets ___. (a) smaller (b) coloured (c) bigger (d) brighter
  23. 23.True or false: clean water is transparent. (a) False (b) True
  24. 24.🔍 Which is the odd one out? (a) tissue paper (b) a brick (c) your hand (d) a wooden board
  25. 25.⚖️ Fair test — how does the shadow of a stick change through the day? Which of these is the one thing we change? (a) the time of day (b) the same stick (c) shadow length (d) the same spot
  26. 26.🧺 Which of these is not needed for the shadow clock? (a) a straight stick (b) turmeric powder (c) a clock to check (d) chalk to mark shadows
  27. 27.🔦 Is a wooden board opaque, translucent or transparent? (a) opaque (b) transparent (c) translucent
  28. 28.🔦 Is a book opaque, translucent or transparent? (a) translucent (b) opaque (c) transparent
  29. 29.True or false: a mirror is needed for the shadow clock. (a) True (b) False
  30. 30.🧺 Do we need a clock to check for the shadow clock? (a) needed (b) not needed
  31. 31.🧺 Three of these are needed for the shadow clock. Which one is NOT needed? (a) chalk to mark shadows (b) a straight stick (c) turmeric powder (d) a clock to check
  32. 32.True or false: a straight stick is needed for the shadow clock. (a) False (b) True
  33. 33.🕰️ What is a sundial used for? (a) making rainbows (b) weighing things (c) measuring rain (d) telling the time
  34. 34.⚖️ Fair test — how does the shadow of a stick change through the day? Which of these is what we measure? (a) the same stick (b) the stick kept upright (c) the same spot (d) shadow length
  35. 35.🔍 Which is the odd one out? (a) clear glass (b) clear plastic film (c) a steel plate (d) air
  36. 36.True or false: a wooden board is opaque. (a) True (b) False
  37. 37.🔍 Which is the odd one out? (a) a book (b) butter paper (c) a brick (d) your hand
  38. 38.🔦 Which of these is transparent? (a) a steel plate (b) clean water (c) tissue paper (d) oily paper
  39. 39.True or false: a magnet is needed for the shadow clock. (a) False (b) True
  40. 40.True or false: a battery cell is not needed for the shadow clock. (a) True (b) False

Answer key

  1. chalk to mark shadows
  2. translucent
  3. a straight stick
  4. air
  5. True
  6. around noon
  7. a battery cell
  8. we keep it the same
  9. True
  10. the stick kept upright
  11. False
  12. a clock to check
  13. long
  14. False
  15. the same stick
  16. an object blocks light
  17. False
  18. your hand
  19. needed
  20. True
  21. a magnet
  22. bigger
  23. True
  24. tissue paper
  25. the time of day
  26. turmeric powder
  27. opaque
  28. opaque
  29. False
  30. needed
  31. turmeric powder
  32. True
  33. telling the time
  34. shadow length
  35. a steel plate
  36. True
  37. butter paper
  38. clean water
  39. False
  40. True

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