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Shadow and Sundial Experiment Worksheet

Science experiments lesson 27: Shadows and a sundial · Set 853 · 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 needed for the shadow clock. (a) True (b) False
  2. 2.🌍 Why does the stick’s shadow move during the day? (a) the ground slides (b) the stick walks (c) the stick grows (d) Earth keeps spinning
  3. 3.True or false: turmeric powder is not needed for the shadow clock. (a) True (b) False
  4. 4.🛟 While watching shadows outdoors, what must you never do? (a) wear a cap (b) look straight at the Sun (c) mark with chalk (d) sit in the shade
  5. 5.🔦 Is clear glass opaque, translucent or transparent? (a) opaque (b) translucent (c) transparent
  6. 6.🔦 Is clear plastic film opaque, translucent or transparent? (a) transparent (b) opaque (c) translucent
  7. 7.🔮 Predict: the Sun is low in the evening sky. The stick’s shadow is ___. (a) short (b) round (c) missing (d) long
  8. 8.⚖️ Fair test — how does the shadow of a stick change through the day? What do we do with “the time of day”? (a) we keep it the same (b) we change it (c) we measure it
  9. 9.⚖️ 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
  10. 10.🔍 Which is the odd one out? (a) a brick (b) butter paper (c) frosted glass (d) tissue paper
  11. 11.🧺 Which of these is needed for the shadow clock? (a) yeast (b) a mirror (c) a balloon (d) a clock to check
  12. 12.⚖️ 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 change it (c) we keep it the same
  13. 13.True or false: a balloon is needed for the shadow clock. (a) True (b) False
  14. 14.🔦 Which of these is translucent? (a) air (b) a brick (c) a book (d) tissue paper
  15. 15.🔦 Which of these is transparent? (a) a book (b) clean water (c) a brick (d) butter paper
  16. 16.🔦 Is tissue paper opaque, translucent or transparent? (a) opaque (b) transparent (c) translucent
  17. 17.True or false: tissue paper is translucent. (a) False (b) True
  18. 18.🧺 Do we need a straight stick for the shadow clock? (a) not needed (b) needed
  19. 19.🧺 Three of these are needed for the shadow clock. Which one is NOT needed? (a) chalk to mark shadows (b) turmeric powder (c) a sunny open place (d) a straight stick
  20. 20.⚖️ 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
  21. 21.🔮 Predict: you move a torch closer to your hand. The shadow on the wall gets ___. (a) smaller (b) brighter (c) bigger (d) coloured
  22. 22.🧺 Which of these is needed for the shadow clock? (a) a mirror (b) a battery cell (c) yeast (d) a straight stick
  23. 23.True or false: clear plastic film is opaque. (a) True (b) False
  24. 24.True or false: a mirror is not needed for the shadow clock. (a) False (b) True
  25. 25.🧺 Do we need chalk to mark shadows for the shadow clock? (a) needed (b) not needed
  26. 26.🧺 Do we need a balloon 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 clock to check (b) a battery cell (c) a sunny open place (d) a straight stick
  28. 28.🧺 Do we need turmeric powder for the shadow clock? (a) needed (b) not needed
  29. 29.🧺 Which of these is not needed for the shadow clock? (a) a straight stick (b) chalk to mark shadows (c) a clock to check (d) a magnet
  30. 30.True or false: a magnet is needed for the shadow clock. (a) True (b) False
  31. 31.🧺 Three of these are needed for the shadow clock. Which one is NOT needed? (a) a sunny open place (b) a balloon (c) a straight stick (d) a clock to check
  32. 32.🔍 Which is the odd one out? (a) tissue paper (b) a wooden board (c) your hand (d) a brick
  33. 33.True or false: clear glass is transparent. (a) True (b) False
  34. 34.🔮 Predict: on a fully cloudy day, the sundial ___. (a) runs faster (b) shows two times (c) does not work well (d) works better
  35. 35.🔦 Is air opaque, translucent or transparent? (a) opaque (b) transparent (c) translucent
  36. 36.🧺 Do we need a clock to check for the shadow clock? (a) needed (b) not needed
  37. 37.True or false: butter paper is translucent. (a) True (b) False
  38. 38.🔦 Which of these is transparent? (a) clear glass (b) a brick (c) butter paper (d) a steel plate
  39. 39.True or false: a magnet is not needed for the shadow clock. (a) False (b) True
  40. 40.🧺 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 straight stick (d) yeast

Answer key

  1. False
  2. Earth keeps spinning
  3. True
  4. look straight at the Sun
  5. transparent
  6. transparent
  7. long
  8. we change it
  9. True
  10. a brick
  11. a clock to check
  12. we keep it the same
  13. False
  14. tissue paper
  15. clean water
  16. translucent
  17. True
  18. needed
  19. turmeric powder
  20. False
  21. bigger
  22. a straight stick
  23. False
  24. True
  25. needed
  26. not needed
  27. a battery cell
  28. not needed
  29. a magnet
  30. False
  31. a balloon
  32. tissue paper
  33. True
  34. does not work well
  35. transparent
  36. needed
  37. True
  38. clear glass
  39. True
  40. yeast

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