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Shadow and Sundial Experiment Worksheet

Science experiments lesson 27: Shadows and a sundial · Set 107 · 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: yeast is not needed for the shadow clock. (a) True (b) False
  2. 2.True or false: a straight stick is not needed for the shadow clock. (a) False (b) True
  3. 3.🧺 Do we need a sunny open place for the shadow clock? (a) not needed (b) needed
  4. 4.🔦 Which of these is transparent? (a) your hand (b) a wooden board (c) tissue paper (d) clear glass
  5. 5.True or false: a brick is opaque. (a) False (b) True
  6. 6.⚖️ 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
  7. 7.⚖️ 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
  8. 8.True or false: a steel plate is opaque. (a) False (b) True
  9. 9.🔍 Which is the odd one out? (a) air (b) clear plastic film (c) tissue paper (d) clean water
  10. 10.🌞 When is a stick’s shadow the shortest? (a) late evening (b) early morning (c) at night (d) around noon
  11. 11.🛟 What should you wear for a long time in the hot sun? (a) a raincoat (b) nothing on your head (c) a cap or hat (d) a woollen sweater
  12. 12.🛟 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
  13. 13.True or false: a battery cell is needed for the shadow clock. (a) True (b) False
  14. 14.🧺 Do we need yeast for the shadow clock? (a) needed (b) not needed
  15. 15.⚖️ Fair test — how does the shadow of a stick change through the day? Which of these is kept the same? (a) shadow length (b) the time of day (c) the same stick
  16. 16.🔦 Which of these is opaque? (a) a book (b) frosted glass (c) oily paper (d) butter paper
  17. 17.🔦 Which of these is translucent? (a) a book (b) clear glass (c) a steel plate (d) tissue paper
  18. 18.True or false: a sunny open place is not needed for the shadow clock. (a) True (b) False
  19. 19.True or false: chalk to mark shadows is not needed for the shadow clock. (a) True (b) False
  20. 20.🔦 Is butter paper opaque, translucent or transparent? (a) transparent (b) opaque (c) translucent
  21. 21.🧺 Which of these is not needed for the shadow clock? (a) a straight stick (b) a clock to check (c) chalk to mark shadows (d) a magnet
  22. 22.True or false: oily paper is opaque. (a) True (b) False
  23. 23.⚖️ 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 change it (c) we keep it the same
  24. 24.⚖️ 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
  25. 25.⚖️ 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 same spot (c) shadow length (d) the time of day
  26. 26.🧺 Do we need a straight stick for the shadow clock? (a) not needed (b) needed
  27. 27.🧺 Three of these are needed for the shadow clock. Which one is NOT needed? (a) a sunny open place (b) a straight stick (c) a magnet (d) a clock to check
  28. 28.🔮 Predict: on a fully cloudy day, the sundial ___. (a) runs faster (b) works better (c) shows two times (d) does not work well
  29. 29.🔦 Is clear plastic film opaque, translucent or transparent? (a) opaque (b) translucent (c) transparent
  30. 30.🔍 Which is the odd one out? (a) air (b) tissue paper (c) frosted glass (d) oily paper
  31. 31.🔦 Which of these is translucent? (a) your hand (b) a book (c) a wooden board (d) oily paper
  32. 32.🔦 Which of these is translucent? (a) butter paper (b) clear plastic film (c) a wooden board (d) a brick
  33. 33.🧺 Do we need chalk to mark shadows for the shadow clock? (a) not needed (b) needed
  34. 34.🧺 Which of these is not needed for the shadow clock? (a) a sunny open place (b) a straight stick (c) a battery cell (d) chalk to mark shadows
  35. 35.🔦 Is your hand opaque, translucent or transparent? (a) transparent (b) opaque (c) translucent
  36. 36.🔮 Predict: you move a torch closer to your hand. The shadow on the wall gets ___. (a) brighter (b) bigger (c) smaller (d) coloured
  37. 37.🔦 Which of these is transparent? (a) your hand (b) a steel plate (c) air (d) a wooden board
  38. 38.🧺 Do we need a magnet for the shadow clock? (a) needed (b) not needed
  39. 39.🧺 Which of these is not needed for the shadow clock? (a) a straight stick (b) a sunny open place (c) a clock to check (d) a mirror
  40. 40.🧺 Which of these is not needed for the shadow clock? (a) chalk to mark shadows (b) a sunny open place (c) a straight stick (d) turmeric powder

Answer key

  1. True
  2. False
  3. needed
  4. clear glass
  5. True
  6. True
  7. True
  8. True
  9. tissue paper
  10. around noon
  11. a cap or hat
  12. look straight at the Sun
  13. False
  14. not needed
  15. the same stick
  16. a book
  17. tissue paper
  18. False
  19. False
  20. translucent
  21. a magnet
  22. False
  23. we keep it the same
  24. we keep it the same
  25. shadow length
  26. needed
  27. a magnet
  28. does not work well
  29. transparent
  30. air
  31. oily paper
  32. butter paper
  33. needed
  34. a battery cell
  35. opaque
  36. bigger
  37. air
  38. not needed
  39. a mirror
  40. turmeric powder

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