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Shadow and Sundial Experiment Worksheet

Science experiments lesson 27: Shadows and a sundial · Set 163 · 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.⚖️ 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 stick kept upright (c) the same spot (d) shadow length
  2. 2.🔮 Predict: on a fully cloudy day, the sundial ___. (a) works better (b) runs faster (c) does not work well (d) shows two times
  3. 3.True or false: clear glass is transparent. (a) True (b) False
  4. 4.🔍 Which is the odd one out? (a) clean water (b) air (c) your hand (d) clear glass
  5. 5.🌞 When is a stick’s shadow the shortest? (a) at night (b) early morning (c) around noon (d) late evening
  6. 6.⚖️ Fair test — how does the shadow of a stick change through the day? True or false: the time of day is what we measure. (a) False (b) True
  7. 7.🧺 Do we need a straight stick for the shadow clock? (a) needed (b) not needed
  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) False (b) True
  9. 9.🔍 Which is the odd one out? (a) a book (b) a wooden board (c) a steel plate (d) air
  10. 10.🔦 Is a brick opaque, translucent or transparent? (a) transparent (b) translucent (c) opaque
  11. 11.🛟 What should you wear for a long time in the hot sun? (a) nothing on your head (b) a raincoat (c) a woollen sweater (d) a cap or hat
  12. 12.True or false: chalk to mark shadows is needed for the shadow clock. (a) False (b) True
  13. 13.⚖️ Fair test — how does the shadow of a stick change through the day? True or false: the stick kept upright is the one thing we change. (a) True (b) False
  14. 14.🧺 Which of these is not needed for the shadow clock? (a) a straight stick (b) a magnet (c) a sunny open place (d) chalk to mark shadows
  15. 15.🔮 Predict: you move a torch closer to your hand. The shadow on the wall gets ___. (a) smaller (b) bigger (c) coloured (d) brighter
  16. 16.🔦 Which of these is opaque? (a) butter paper (b) air (c) a steel plate (d) tissue paper
  17. 17.True or false: a wooden board is translucent. (a) False (b) True
  18. 18.⚖️ 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 keep it the same (c) we measure it
  19. 19.True or false: a sunny open place is not needed for the shadow clock. (a) True (b) False
  20. 20.🧺 Do we need a mirror for the shadow clock? (a) not needed (b) needed
  21. 21.🔍 Which is the odd one out? (a) your hand (b) clear glass (c) a brick (d) a wooden board
  22. 22.🔦 Which of these is opaque? (a) clear plastic film (b) a wooden board (c) butter paper (d) frosted glass
  23. 23.🔦 Which of these is translucent? (a) tissue paper (b) a brick (c) clear plastic film (d) a book
  24. 24.True or false: clear plastic film is opaque. (a) False (b) True
  25. 25.🧺 Three of these are needed for the shadow clock. Which one is NOT needed? (a) a clock to check (b) a straight stick (c) a balloon (d) a sunny open place
  26. 26.🧺 Do we need a magnet for the shadow clock? (a) needed (b) not needed
  27. 27.🔦 Is butter paper opaque, translucent or transparent? (a) translucent (b) opaque (c) transparent
  28. 28.⚖️ 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) the time of day (d) shadow length
  29. 29.True or false: a battery cell is needed for the shadow clock. (a) True (b) False
  30. 30.🧺 Which of these is not needed for the shadow clock? (a) a clock to check (b) turmeric powder (c) a sunny open place (d) chalk to mark shadows
  31. 31.🧺 Which of these is needed for the shadow clock? (a) a balloon (b) a straight stick (c) a magnet (d) a mirror
  32. 32.🛟 While watching shadows outdoors, what must you never do? (a) mark with chalk (b) look straight at the Sun (c) wear a cap (d) sit in the shade
  33. 33.🔦 Which of these is translucent? (a) a wooden board (b) air (c) clear glass (d) butter paper
  34. 34.🔍 Which is the odd one out? (a) clean water (b) tissue paper (c) air (d) clear plastic film
  35. 35.🧺 Do we need a sunny open place for the shadow clock? (a) not needed (b) needed
  36. 36.⚖️ 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
  37. 37.🔍 Which is the odd one out? (a) a wooden board (b) a brick (c) frosted glass (d) a steel plate
  38. 38.⚖️ Fair test — how does the shadow of a stick change through the day? True or false: shadow length is kept the same. (a) True (b) False
  39. 39.🧺 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) yeast
  40. 40.🧺 Three of these are needed for the shadow clock. Which one is NOT needed? (a) a sunny open place (b) turmeric powder (c) a clock to check (d) a straight stick

Answer key

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

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