← Shadows and a sundial lesson New set →

Shadow and Sundial Experiment Worksheet

Science experiments lesson 27: Shadows and a sundial · Set 734 · 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.🔦 Is clear plastic film opaque, translucent or transparent? (a) opaque (b) translucent (c) transparent
  2. 2.🧺 Which of these is not needed for the shadow clock? (a) a straight stick (b) a sunny open place (c) a battery cell (d) chalk to mark shadows
  3. 3.🔦 Which of these is transparent? (a) air (b) a steel plate (c) a book (d) a wooden board
  4. 4.True or false: your hand is translucent. (a) False (b) True
  5. 5.True or false: butter paper is opaque. (a) False (b) True
  6. 6.🔮 Predict: you move a torch closer to your hand. The shadow on the wall gets ___. (a) coloured (b) bigger (c) smaller (d) brighter
  7. 7.🧺 Do we need turmeric powder for the shadow clock? (a) needed (b) not needed
  8. 8.⚖️ 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 keep it the same (c) we change it
  9. 9.🧺 Do we need chalk to mark shadows for the shadow clock? (a) not needed (b) needed
  10. 10.🧺 Three of these are needed for the shadow clock. Which one is NOT needed? (a) a clock to check (b) a balloon (c) a sunny open place (d) a straight stick
  11. 11.True or false: a book is transparent. (a) False (b) True
  12. 12.True or false: a steel plate is opaque. (a) True (b) False
  13. 13.🔦 Which of these is transparent? (a) tissue paper (b) clean water (c) butter paper (d) frosted glass
  14. 14.⚖️ Fair test — how does the shadow of a stick change through the day? True or false: the same spot is kept the same. (a) False (b) True
  15. 15.🛟 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
  16. 16.⚖️ 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) True (b) False
  17. 17.🧺 Do we need a balloon for the shadow clock? (a) not needed (b) needed
  18. 18.True or false: a clock to check is needed for the shadow clock. (a) True (b) False
  19. 19.⚖️ Fair test — how does the shadow of a stick change through the day? Which of these is the one thing we change? (a) the same stick (b) the same spot (c) the time of day (d) the stick kept upright
  20. 20.🔦 Is butter paper opaque, translucent or transparent? (a) opaque (b) translucent (c) transparent
  21. 21.⚖️ 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 change it (c) we keep it the same
  22. 22.🔍 Which is the odd one out? (a) tissue paper (b) frosted glass (c) your hand (d) oily paper
  23. 23.🔍 Which is the odd one out? (a) clear glass (b) a book (c) air (d) clear plastic film
  24. 24.🔮 Predict: on a fully cloudy day, the sundial ___. (a) works better (b) does not work well (c) shows two times (d) runs faster
  25. 25.🔮 Predict: the Sun is low in the evening sky. The stick’s shadow is ___. (a) missing (b) round (c) short (d) long
  26. 26.⚖️ 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) the stick kept upright (c) shadow length
  27. 27.True or false: a brick is translucent. (a) False (b) True
  28. 28.⚖️ 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
  29. 29.🛟 What should you wear for a long time in the hot sun? (a) a cap or hat (b) a raincoat (c) nothing on your head (d) a woollen sweater
  30. 30.🧺 Which of these is not needed for the shadow clock? (a) a sunny open place (b) a straight stick (c) yeast (d) chalk to mark shadows
  31. 31.True or false: tissue paper is transparent. (a) True (b) False
  32. 32.🔦 Which of these is opaque? (a) clear glass (b) your hand (c) butter paper (d) tissue paper
  33. 33.True or false: air is transparent. (a) False (b) True
  34. 34.🔦 Which of these is opaque? (a) clean water (b) a wooden board (c) frosted glass (d) tissue paper
  35. 35.⚖️ Fair test — how does the shadow of a stick change through the day? What do we do with “the time of day”? (a) we change it (b) we keep it the same (c) we measure it
  36. 36.🔍 Which is the odd one out? (a) your hand (b) a brick (c) tissue paper (d) a steel plate
  37. 37.🧺 Three of these are needed for the shadow clock. Which one is NOT needed? (a) a sunny open place (b) a straight stick (c) yeast (d) chalk to mark shadows
  38. 38.⚖️ 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) False (b) True
  39. 39.🔦 Is a wooden board opaque, translucent or transparent? (a) transparent (b) opaque (c) translucent
  40. 40.🔦 Is clean water opaque, translucent or transparent? (a) opaque (b) translucent (c) transparent

Answer key

  1. transparent
  2. a battery cell
  3. air
  4. False
  5. False
  6. bigger
  7. not needed
  8. we keep it the same
  9. needed
  10. a balloon
  11. False
  12. True
  13. clean water
  14. True
  15. look straight at the Sun
  16. True
  17. not needed
  18. True
  19. the time of day
  20. translucent
  21. we measure it
  22. your hand
  23. a book
  24. does not work well
  25. long
  26. the stick kept upright
  27. False
  28. False
  29. a cap or hat
  30. yeast
  31. False
  32. your hand
  33. True
  34. a wooden board
  35. we change it
  36. tissue paper
  37. yeast
  38. False
  39. opaque
  40. transparent

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