← Shadows and a sundial lesson New set →

Shadow and Sundial Experiment Worksheet

Science experiments lesson 27: Shadows and a sundial · Set 492 · 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.🧺 Three of these are needed for the shadow clock. Which one is NOT needed? (a) a balloon (b) a straight stick (c) chalk to mark shadows (d) a clock to check
  2. 2.📘 Why does a shadow form? (a) the ground is dark (b) light bends round it (c) the object is cold (d) an object blocks light
  3. 3.🔦 Is oily paper opaque, translucent or transparent? (a) transparent (b) translucent (c) opaque
  4. 4.⚖️ Fair test — how does the shadow of a stick change through the day? What do we do with “the same spot”? (a) we measure it (b) we change it (c) we keep it the same
  5. 5.🧺 Do we need a sunny open place for the shadow clock? (a) needed (b) not needed
  6. 6.🔦 Which of these is opaque? (a) your hand (b) oily paper (c) butter paper (d) clear glass
  7. 7.⚖️ 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) shadow length (c) the same spot
  8. 8.True or false: oily paper is opaque. (a) True (b) False
  9. 9.⚖️ 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) False (b) True
  10. 10.🔦 Is air opaque, translucent or transparent? (a) opaque (b) translucent (c) transparent
  11. 11.⚖️ 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 stick kept upright (c) shadow length (d) the time of day
  12. 12.🔮 Predict: on a fully cloudy day, the sundial ___. (a) does not work well (b) runs faster (c) works better (d) shows two times
  13. 13.🔦 Which of these is transparent? (a) butter paper (b) a wooden board (c) frosted glass (d) clean water
  14. 14.🔍 Which is the odd one out? (a) a brick (b) a wooden board (c) clear plastic film (d) your hand
  15. 15.🔦 Which of these is translucent? (a) air (b) your hand (c) frosted glass (d) clear glass
  16. 16.🧺 Which of these is not needed for the shadow clock? (a) a sunny open place (b) turmeric powder (c) chalk to mark shadows (d) a straight stick
  17. 17.🔦 Which of these is opaque? (a) clear glass (b) a steel plate (c) frosted glass (d) tissue paper
  18. 18.True or false: a mirror is not needed for the shadow clock. (a) True (b) False
  19. 19.🧺 Three of these are needed for the shadow clock. Which one is NOT needed? (a) a clock to check (b) chalk to mark shadows (c) a sunny open place (d) yeast
  20. 20.🌍 Why does the stick’s shadow move during the day? (a) the stick walks (b) the stick grows (c) Earth keeps spinning (d) the ground slides
  21. 21.True or false: a battery cell is not needed for the shadow clock. (a) False (b) True
  22. 22.🔦 Which of these is opaque? (a) frosted glass (b) a wooden board (c) tissue paper (d) oily paper
  23. 23.⚖️ Fair test — how does the shadow of a stick change through the day? True or false: shadow length is what we measure. (a) True (b) False
  24. 24.⚖️ Fair test — how does the shadow of a stick change through the day? What do we do with “the same stick”? (a) we keep it the same (b) we change it (c) we measure it
  25. 25.True or false: oily paper is translucent. (a) True (b) False
  26. 26.True or false: a sunny open place is not needed for the shadow clock. (a) True (b) False
  27. 27.🧺 Three of these are needed for the shadow clock. Which one is NOT needed? (a) a sunny open place (b) chalk to mark shadows (c) a straight stick (d) a magnet
  28. 28.🔦 Is clear glass opaque, translucent or transparent? (a) opaque (b) translucent (c) transparent
  29. 29.🔍 Which is the odd one out? (a) clear glass (b) tissue paper (c) frosted glass (d) butter paper
  30. 30.True or false: a magnet is not needed for the shadow clock. (a) False (b) True
  31. 31.🧺 Do we need a battery cell for the shadow clock? (a) needed (b) not needed
  32. 32.True or false: a book is opaque. (a) True (b) False
  33. 33.⚖️ Fair test — how does the shadow of a stick change through the day? Which of these is the one thing we change? (a) shadow length (b) the stick kept upright (c) the time of day (d) the same spot
  34. 34.🧺 Which of these is needed for the shadow clock? (a) a magnet (b) yeast (c) turmeric powder (d) a straight stick
  35. 35.🌞 When is a stick’s shadow the shortest? (a) around noon (b) at night (c) late evening (d) early morning
  36. 36.🧺 Do we need a clock to check for the shadow clock? (a) not needed (b) needed
  37. 37.🔮 Predict: the Sun is low in the evening sky. The stick’s shadow is ___. (a) missing (b) round (c) short (d) long
  38. 38.🔦 Is a book opaque, translucent or transparent? (a) translucent (b) transparent (c) opaque
  39. 39.🔦 Is clear plastic film opaque, translucent or transparent? (a) translucent (b) transparent (c) opaque
  40. 40.🔮 Predict: you move a torch closer to your hand. The shadow on the wall gets ___. (a) smaller (b) brighter (c) coloured (d) bigger

Answer key

  1. a balloon
  2. an object blocks light
  3. translucent
  4. we keep it the same
  5. needed
  6. your hand
  7. the same spot
  8. False
  9. True
  10. transparent
  11. shadow length
  12. does not work well
  13. clean water
  14. clear plastic film
  15. frosted glass
  16. turmeric powder
  17. a steel plate
  18. True
  19. yeast
  20. Earth keeps spinning
  21. True
  22. a wooden board
  23. True
  24. we keep it the same
  25. True
  26. False
  27. a magnet
  28. transparent
  29. clear glass
  30. True
  31. not needed
  32. True
  33. the time of day
  34. a straight stick
  35. around noon
  36. needed
  37. long
  38. opaque
  39. transparent
  40. bigger

Free science experiments lessons, practice and worksheets at talentjr.in/science-experiments-for-kids