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Shadow and Sundial Experiment Worksheet

Science experiments lesson 27: Shadows and a sundial · Set 796 · 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.True or false: your hand is opaque. (a) False (b) True
  2. 2.🧺 Three of these are needed for the shadow clock. Which one is NOT needed? (a) a straight stick (b) chalk to mark shadows (c) yeast (d) a sunny open place
  3. 3.🧺 Three of these are needed for the shadow clock. Which one is NOT needed? (a) a straight stick (b) a clock to check (c) a balloon (d) a sunny open place
  4. 4.🔮 Predict: you move a torch closer to your hand. The shadow on the wall gets ___. (a) coloured (b) bigger (c) smaller (d) brighter
  5. 5.True or false: chalk to mark shadows is not needed for the shadow clock. (a) False (b) True
  6. 6.🔦 Which of these is translucent? (a) a wooden board (b) clear glass (c) tissue paper (d) clear plastic film
  7. 7.🔦 Which of these is transparent? (a) your hand (b) tissue paper (c) clear plastic film (d) a book
  8. 8.⚖️ 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
  9. 9.⚖️ Fair test — how does the shadow of a stick change through the day? Which of these is what we measure? (a) shadow length (b) the same stick (c) the same spot (d) the stick kept upright
  10. 10.⚖️ Fair test — how does the shadow of a stick change through the day? What do we do with “the same spot”? (a) we change it (b) we measure it (c) we keep it the same
  11. 11.🔦 Is a wooden board opaque, translucent or transparent? (a) opaque (b) transparent (c) translucent
  12. 12.🧺 Which of these is needed for the shadow clock? (a) a mirror (b) chalk to mark shadows (c) a magnet (d) a balloon
  13. 13.🔦 Which of these is translucent? (a) your hand (b) a brick (c) air (d) butter paper
  14. 14.🔍 Which is the odd one out? (a) clear plastic film (b) a brick (c) a wooden board (d) a steel plate
  15. 15.🔍 Which is the odd one out? (a) a wooden board (b) butter paper (c) a brick (d) your hand
  16. 16.🔦 Is tissue paper opaque, translucent or transparent? (a) translucent (b) opaque (c) transparent
  17. 17.🧺 Three of these are needed for the shadow clock. Which one is NOT needed? (a) chalk to mark shadows (b) a clock to check (c) a sunny open place (d) a mirror
  18. 18.🌍 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
  19. 19.⚖️ 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
  20. 20.🔍 Which is the odd one out? (a) air (b) clean water (c) clear glass (d) frosted glass
  21. 21.True or false: clear plastic film is opaque. (a) True (b) False
  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 change it (b) we measure it (c) we keep it the same
  23. 23.📘 Why does a shadow form? (a) the ground is dark (b) the object is cold (c) light bends round it (d) an object blocks light
  24. 24.True or false: chalk to mark shadows is needed for the shadow clock. (a) True (b) False
  25. 25.🧺 Do we need yeast for the shadow clock? (a) needed (b) not needed
  26. 26.⚖️ 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
  27. 27.True or false: a mirror is not needed for the shadow clock. (a) False (b) True
  28. 28.True or false: tissue paper is opaque. (a) False (b) True
  29. 29.🔦 Is clear glass opaque, translucent or transparent? (a) transparent (b) opaque (c) translucent
  30. 30.🔦 Which of these is opaque? (a) oily paper (b) clean water (c) air (d) a steel plate
  31. 31.🔍 Which is the odd one out? (a) clean water (b) clear plastic film (c) your hand (d) clear glass
  32. 32.True or false: a balloon is needed for the shadow clock. (a) False (b) True
  33. 33.⚖️ Fair test — how does the shadow of a stick change through the day? What do we do with “the stick kept upright”? (a) we measure it (b) we keep it the same (c) we change it
  34. 34.True or false: butter paper is translucent. (a) True (b) False
  35. 35.🛟 What should you wear for a long time in the hot sun? (a) nothing on your head (b) a raincoat (c) a cap or hat (d) a woollen sweater
  36. 36.True or false: yeast is needed for the shadow clock. (a) False (b) True
  37. 37.🔦 Is clear plastic film opaque, translucent or transparent? (a) translucent (b) transparent (c) opaque
  38. 38.🧺 Do we need chalk to mark shadows for the shadow clock? (a) needed (b) not needed
  39. 39.🧺 Three of these are needed for the shadow clock. Which one is NOT needed? (a) a clock to check (b) a magnet (c) chalk to mark shadows (d) a sunny open place
  40. 40.🧺 Which of these is not needed for the shadow clock? (a) a mirror (b) a straight stick (c) chalk to mark shadows (d) a sunny open place

Answer key

  1. True
  2. yeast
  3. a balloon
  4. bigger
  5. False
  6. tissue paper
  7. clear plastic film
  8. False
  9. shadow length
  10. we keep it the same
  11. opaque
  12. chalk to mark shadows
  13. butter paper
  14. clear plastic film
  15. butter paper
  16. translucent
  17. a mirror
  18. Earth keeps spinning
  19. True
  20. frosted glass
  21. False
  22. we change it
  23. an object blocks light
  24. True
  25. not needed
  26. the time of day
  27. True
  28. False
  29. transparent
  30. a steel plate
  31. your hand
  32. False
  33. we keep it the same
  34. True
  35. a cap or hat
  36. False
  37. transparent
  38. needed
  39. a magnet
  40. a mirror

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