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Shadow and Sundial Experiment Worksheet

Science experiments lesson 27: Shadows and a sundial · Set 649 · 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) yeast (b) a sunny open place (c) a mirror (d) a balloon
  2. 2.True or false: a steel plate is transparent. (a) True (b) False
  3. 3.🧺 Do we need a balloon for the shadow clock? (a) needed (b) not needed
  4. 4.🔦 Which of these is transparent? (a) a wooden board (b) a steel plate (c) butter paper (d) air
  5. 5.True or false: tissue paper is opaque. (a) True (b) False
  6. 6.🔍 Which is the odd one out? (a) frosted glass (b) a brick (c) a wooden board (d) your hand
  7. 7.🔦 Which of these is transparent? (a) a wooden board (b) clear glass (c) frosted glass (d) butter paper
  8. 8.🔍 Which is the odd one out? (a) a steel plate (b) a wooden board (c) your hand (d) oily paper
  9. 9.🧺 Three of these are needed for the shadow clock. Which one is NOT needed? (a) a sunny open place (b) a clock to check (c) a mirror (d) a straight stick
  10. 10.True or false: yeast is not needed for the shadow clock. (a) False (b) True
  11. 11.🔍 Which is the odd one out? (a) clear plastic film (b) air (c) clean water (d) your hand
  12. 12.🔮 Predict: on a fully cloudy day, the sundial ___. (a) works better (b) runs faster (c) shows two times (d) does not work well
  13. 13.True or false: a mirror is needed for the shadow clock. (a) False (b) True
  14. 14.⚖️ Fair test — how does the shadow of a stick change through the day? What do we do with “shadow length”? (a) we measure it (b) we keep it the same (c) we change it
  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 same stick (c) the time of day
  16. 16.🧺 Three of these are needed for the shadow clock. Which one is NOT needed? (a) chalk to mark shadows (b) a sunny open place (c) a battery cell (d) a straight stick
  17. 17.True or false: your hand is opaque. (a) False (b) True
  18. 18.🔦 Is clear glass opaque, translucent or transparent? (a) transparent (b) translucent (c) opaque
  19. 19.🔍 Which is the odd one out? (a) air (b) clean water (c) clear glass (d) butter paper
  20. 20.⚖️ 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 keep it the same (c) we measure it
  21. 21.True or false: a battery cell is not needed for the shadow clock. (a) True (b) False
  22. 22.🧺 Do we need yeast for the shadow clock? (a) not needed (b) needed
  23. 23.🔍 Which is the odd one out? (a) a steel plate (b) your hand (c) a wooden board (d) clear glass
  24. 24.🧺 Do we need a sunny open place for the shadow clock? (a) not needed (b) needed
  25. 25.🧺 Which of these is needed for the shadow clock? (a) a straight stick (b) a battery cell (c) turmeric powder (d) a magnet
  26. 26.⚖️ Fair test — how does the shadow of a stick change through the day? True or false: the same stick is what we measure. (a) True (b) False
  27. 27.🧺 Which of these is needed for the shadow clock? (a) chalk to mark shadows (b) turmeric powder (c) a mirror (d) a magnet
  28. 28.⚖️ 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
  29. 29.🧺 Do we need a battery cell for the shadow clock? (a) needed (b) not needed
  30. 30.⚖️ Fair test — how does the shadow of a stick change through the day? True or false: the same stick is the one thing we change. (a) True (b) False
  31. 31.🧺 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) yeast
  32. 32.🔦 Is clean water opaque, translucent or transparent? (a) transparent (b) translucent (c) opaque
  33. 33.🔍 Which is the odd one out? (a) tissue paper (b) a wooden board (c) your hand (d) a brick
  34. 34.🌍 Why does the stick’s shadow move during the day? (a) Earth keeps spinning (b) the stick grows (c) the stick walks (d) the ground slides
  35. 35.🔮 Predict: you move a torch closer to your hand. The shadow on the wall gets ___. (a) brighter (b) bigger (c) smaller (d) coloured
  36. 36.True or false: oily paper is transparent. (a) False (b) True
  37. 37.🔦 Which of these is opaque? (a) air (b) clear plastic film (c) your hand (d) tissue paper
  38. 38.🧺 Which of these is not needed for the shadow clock? (a) a balloon (b) a sunny open place (c) a straight stick (d) chalk to mark shadows
  39. 39.🔦 Which of these is translucent? (a) air (b) a book (c) frosted glass (d) a brick
  40. 40.⚖️ 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) shadow length (d) the same spot

Answer key

  1. a sunny open place
  2. False
  3. not needed
  4. air
  5. False
  6. frosted glass
  7. clear glass
  8. oily paper
  9. a mirror
  10. True
  11. your hand
  12. does not work well
  13. False
  14. we measure it
  15. the same stick
  16. a battery cell
  17. True
  18. transparent
  19. butter paper
  20. we keep it the same
  21. True
  22. not needed
  23. clear glass
  24. needed
  25. a straight stick
  26. False
  27. chalk to mark shadows
  28. we keep it the same
  29. not needed
  30. False
  31. yeast
  32. transparent
  33. tissue paper
  34. Earth keeps spinning
  35. bigger
  36. False
  37. your hand
  38. a balloon
  39. frosted glass
  40. the time of day

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