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Shadow and Sundial Experiment Worksheet

Science experiments lesson 27: Shadows and a sundial · Set 727 · 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.🔦 Which of these is opaque? (a) oily paper (b) your hand (c) frosted glass (d) tissue paper
  2. 2.🧺 Do we need turmeric powder for the shadow clock? (a) needed (b) not needed
  3. 3.⚖️ Fair test — how does the shadow of a stick change through the day? What do we do with “the same stick”? (a) we measure it (b) we keep it the same (c) we change it
  4. 4.True or false: chalk to mark shadows is needed for the shadow clock. (a) False (b) True
  5. 5.🔦 Is clear glass opaque, translucent or transparent? (a) transparent (b) opaque (c) translucent
  6. 6.🧺 Do we need a straight stick for the shadow clock? (a) not needed (b) needed
  7. 7.📘 Why does a shadow form? (a) the object is cold (b) light bends round it (c) an object blocks light (d) the ground is dark
  8. 8.🔦 Which of these is opaque? (a) air (b) clear plastic film (c) a wooden board (d) oily paper
  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 time of day (d) the stick kept upright
  10. 10.True or false: a straight stick is needed for the shadow clock. (a) False (b) True
  11. 11.🧺 Three of these are needed for the shadow clock. Which one is NOT needed? (a) a straight stick (b) a clock to check (c) chalk to mark shadows (d) turmeric powder
  12. 12.🧺 Do we need a balloon for the shadow clock? (a) not needed (b) needed
  13. 13.🧺 Which of these is not needed for the shadow clock? (a) a magnet (b) a sunny open place (c) a clock to check (d) chalk to mark shadows
  14. 14.🛟 What should you wear for a long time in the hot sun? (a) a woollen sweater (b) a cap or hat (c) nothing on your head (d) a raincoat
  15. 15.🔦 Is tissue paper opaque, translucent or transparent? (a) opaque (b) transparent (c) translucent
  16. 16.🧺 Three of these are needed for the shadow clock. Which one is NOT needed? (a) a clock to check (b) a balloon (c) a straight stick (d) chalk to mark shadows
  17. 17.⚖️ Fair test — how does the shadow of a stick change through the day? What do we do with “shadow length”? (a) we change it (b) we keep it the same (c) we measure it
  18. 18.⚖️ Fair test — how does the shadow of a stick change through the day? What do we do with “the time of day”? (a) we measure it (b) we change it (c) we keep it the same
  19. 19.True or false: tissue paper is transparent. (a) True (b) False
  20. 20.🔍 Which is the odd one out? (a) air (b) clean water (c) a wooden board (d) clear glass
  21. 21.⚖️ 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
  22. 22.🧺 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 battery cell (d) a clock to check
  23. 23.⚖️ 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
  24. 24.🔮 Predict: you move a torch closer to your hand. The shadow on the wall gets ___. (a) bigger (b) brighter (c) smaller (d) coloured
  25. 25.True or false: a battery cell is needed for the shadow clock. (a) True (b) False
  26. 26.True or false: a clock to check is not needed for the shadow clock. (a) False (b) True
  27. 27.True or false: a battery cell is not needed for the shadow clock. (a) True (b) False
  28. 28.⚖️ 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
  29. 29.True or false: clean water is opaque. (a) True (b) False
  30. 30.🔦 Which of these is translucent? (a) butter paper (b) a steel plate (c) clean water (d) a brick
  31. 31.⚖️ Fair test — how does the shadow of a stick change through the day? True or false: the same stick is kept the same. (a) False (b) True
  32. 32.🔍 Which is the odd one out? (a) a wooden board (b) clear glass (c) a book (d) a steel plate
  33. 33.⚖️ 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) True (b) False
  34. 34.🧺 Do we need a battery cell for the shadow clock? (a) needed (b) not needed
  35. 35.🔍 Which is the odd one out? (a) a wooden board (b) a book (c) your hand (d) clean water
  36. 36.🔍 Which is the odd one out? (a) a book (b) a steel plate (c) your hand (d) tissue paper
  37. 37.True or false: oily paper is translucent. (a) True (b) False
  38. 38.🔦 Is a brick opaque, translucent or transparent? (a) opaque (b) translucent (c) transparent
  39. 39.🔮 Predict: on a fully cloudy day, the sundial ___. (a) runs faster (b) does not work well (c) shows two times (d) works better
  40. 40.🔦 Which of these is transparent? (a) a book (b) clean water (c) butter paper (d) oily paper

Answer key

  1. your hand
  2. not needed
  3. we keep it the same
  4. True
  5. transparent
  6. needed
  7. an object blocks light
  8. a wooden board
  9. shadow length
  10. True
  11. turmeric powder
  12. not needed
  13. a magnet
  14. a cap or hat
  15. translucent
  16. a balloon
  17. we measure it
  18. we change it
  19. False
  20. a wooden board
  21. False
  22. a battery cell
  23. the same spot
  24. bigger
  25. False
  26. False
  27. True
  28. the stick kept upright
  29. False
  30. butter paper
  31. True
  32. clear glass
  33. True
  34. not needed
  35. clean water
  36. tissue paper
  37. True
  38. opaque
  39. does not work well
  40. clean water

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