← Shadows and a sundial lesson New set →

Shadow and Sundial Experiment Worksheet

Science experiments lesson 27: Shadows and a sundial · Set 925 · 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 what we measure? (a) the stick kept upright (b) shadow length (c) the same spot (d) the time of day
  2. 2.True or false: a balloon is not needed for the shadow clock. (a) True (b) False
  3. 3.🔮 Predict: the Sun is low in the evening sky. The stick’s shadow is ___. (a) missing (b) round (c) short (d) long
  4. 4.⚖️ 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 keep it the same (c) we change it
  5. 5.🔦 Is a book opaque, translucent or transparent? (a) translucent (b) opaque (c) transparent
  6. 6.True or false: your hand is opaque. (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 the one thing we change. (a) False (b) True
  8. 8.🌞 When is a stick’s shadow the shortest? (a) early morning (b) late evening (c) around noon (d) at night
  9. 9.🔦 Which of these is opaque? (a) a steel plate (b) clean water (c) frosted glass (d) tissue paper
  10. 10.⚖️ Fair test — how does the shadow of a stick change through the day? True or false: shadow length is the one thing we change. (a) True (b) False
  11. 11.🔦 Is your hand opaque, translucent or transparent? (a) translucent (b) transparent (c) opaque
  12. 12.⚖️ Fair test — how does the shadow of a stick change through the day? What do we do with “the same stick”? (a) we change it (b) we measure it (c) we keep it the same
  13. 13.⚖️ Fair test — how does the shadow of a stick change through the day? True or false: the stick kept upright is kept the same. (a) True (b) False
  14. 14.🔦 Which of these is opaque? (a) tissue paper (b) frosted glass (c) air (d) a wooden board
  15. 15.🧺 Which of these is needed for the shadow clock? (a) a battery cell (b) a clock to check (c) a balloon (d) turmeric powder
  16. 16.True or false: yeast is not needed for the shadow clock. (a) False (b) True
  17. 17.⚖️ Fair test — how does the shadow of a stick change through the day? What do we do with “the same spot”? (a) we keep it the same (b) we measure it (c) we change it
  18. 18.⚖️ Fair test — how does the shadow of a stick change through the day? True or false: shadow length is kept the same. (a) False (b) True
  19. 19.⚖️ 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
  20. 20.🧺 Do we need a straight stick for the shadow clock? (a) needed (b) not needed
  21. 21.🔮 Predict: you move a torch closer to your hand. The shadow on the wall gets ___. (a) bigger (b) brighter (c) smaller (d) coloured
  22. 22.True or false: butter paper is translucent. (a) True (b) False
  23. 23.🧺 Do we need a clock to check for the shadow clock? (a) needed (b) not needed
  24. 24.🔮 Predict: on a fully cloudy day, the sundial ___. (a) shows two times (b) works better (c) runs faster (d) does not work well
  25. 25.True or false: oily paper is transparent. (a) False (b) True
  26. 26.⚖️ 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
  27. 27.🔦 Is a brick opaque, translucent or transparent? (a) translucent (b) opaque (c) transparent
  28. 28.🧺 Which of these is needed for the shadow clock? (a) a battery cell (b) a magnet (c) a mirror (d) a straight stick
  29. 29.True or false: a brick is opaque. (a) False (b) True
  30. 30.🛟 While watching shadows outdoors, what must you never do? (a) wear a cap (b) sit in the shade (c) mark with chalk (d) look straight at the Sun
  31. 31.True or false: a clock to check is not needed for the shadow clock. (a) True (b) False
  32. 32.🧺 Do we need a balloon for the shadow clock? (a) needed (b) not needed
  33. 33.🔦 Which of these is transparent? (a) a steel plate (b) a wooden board (c) air (d) tissue paper
  34. 34.🔦 Which of these is transparent? (a) your hand (b) tissue paper (c) butter paper (d) clear glass
  35. 35.True or false: a magnet is not needed for the shadow clock. (a) False (b) True
  36. 36.📘 Why does a shadow form? (a) light bends round it (b) the ground is dark (c) the object is cold (d) an object blocks light
  37. 37.🔦 Is a wooden board opaque, translucent or transparent? (a) translucent (b) transparent (c) opaque
  38. 38.🔦 Is clear plastic film opaque, translucent or transparent? (a) transparent (b) opaque (c) translucent
  39. 39.🧺 Do we need turmeric powder for the shadow clock? (a) not needed (b) needed
  40. 40.True or false: a mirror is not needed for the shadow clock. (a) False (b) True

Answer key

  1. shadow length
  2. True
  3. long
  4. we keep it the same
  5. opaque
  6. True
  7. False
  8. around noon
  9. a steel plate
  10. False
  11. opaque
  12. we keep it the same
  13. True
  14. a wooden board
  15. a clock to check
  16. True
  17. we keep it the same
  18. False
  19. True
  20. needed
  21. bigger
  22. True
  23. needed
  24. does not work well
  25. False
  26. the time of day
  27. opaque
  28. a straight stick
  29. True
  30. look straight at the Sun
  31. False
  32. not needed
  33. air
  34. clear glass
  35. True
  36. an object blocks light
  37. opaque
  38. transparent
  39. not needed
  40. True

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