← Shadows and a sundial lesson New set →

Shadow and Sundial Experiment Worksheet

Science experiments lesson 27: Shadows and a sundial · Set 781 · 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 the one thing we change? (a) the time of day (b) the stick kept upright (c) shadow length (d) the same spot
  2. 2.True or false: yeast is needed for the shadow clock. (a) True (b) False
  3. 3.True or false: your hand is opaque. (a) False (b) True
  4. 4.True or false: clean water is translucent. (a) True (b) False
  5. 5.🔦 Is a steel plate opaque, translucent or transparent? (a) translucent (b) opaque (c) transparent
  6. 6.🧺 Three of these are needed for the shadow clock. Which one is NOT needed? (a) a sunny open place (b) a magnet (c) a clock to check (d) a straight stick
  7. 7.🔮 Predict: you move a torch closer to your hand. The shadow on the wall gets ___. (a) brighter (b) bigger (c) smaller (d) coloured
  8. 8.⚖️ Fair test — how does the shadow of a stick change through the day? True or false: the same spot is what we measure. (a) True (b) False
  9. 9.🧺 Do we need a sunny open place for the shadow clock? (a) needed (b) not needed
  10. 10.🔦 Is clear glass opaque, translucent or transparent? (a) transparent (b) translucent (c) opaque
  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 same spot
  12. 12.True or false: a battery cell is not needed for the shadow clock. (a) False (b) True
  13. 13.⚖️ 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 stick kept upright
  14. 14.🧺 Do we need a straight stick for the shadow clock? (a) not needed (b) needed
  15. 15.🔍 Which is the odd one out? (a) a steel plate (b) oily paper (c) tissue paper (d) frosted glass
  16. 16.🧺 Do we need chalk to mark shadows for the shadow clock? (a) not needed (b) needed
  17. 17.True or false: a steel plate is transparent. (a) True (b) False
  18. 18.🔦 Is tissue paper opaque, translucent or transparent? (a) translucent (b) transparent (c) opaque
  19. 19.⚖️ Fair test — how does the shadow of a stick change through the day? True or false: the stick kept upright is what we measure. (a) False (b) True
  20. 20.🧺 Which of these is not needed for the shadow clock? (a) a sunny open place (b) chalk to mark shadows (c) a balloon (d) a straight stick
  21. 21.🧺 Which of these is needed for the shadow clock? (a) a clock to check (b) yeast (c) a balloon (d) a magnet
  22. 22.🧺 Three of these are needed for the shadow clock. Which one is NOT needed? (a) chalk to mark shadows (b) a straight stick (c) a sunny open place (d) yeast
  23. 23.True or false: frosted glass is translucent. (a) True (b) False
  24. 24.🔦 Is a wooden board opaque, translucent or transparent? (a) translucent (b) opaque (c) transparent
  25. 25.🧺 Do we need turmeric powder for the shadow clock? (a) needed (b) not needed
  26. 26.True or false: a balloon is not needed for the shadow clock. (a) False (b) True
  27. 27.🧺 Three of these are needed for the shadow clock. Which one is NOT needed? (a) a mirror (b) chalk to mark shadows (c) a clock to check (d) a straight stick
  28. 28.🧺 Do we need yeast for the shadow clock? (a) not needed (b) needed
  29. 29.True or false: tissue paper is translucent. (a) False (b) True
  30. 30.🛟 What should you wear for a long time in the hot sun? (a) nothing on your head (b) a cap or hat (c) a raincoat (d) a woollen sweater
  31. 31.True or false: chalk to mark shadows is not needed for the shadow clock. (a) True (b) False
  32. 32.🔦 Is clear plastic film opaque, translucent or transparent? (a) translucent (b) transparent (c) opaque
  33. 33.🔦 Which of these is transparent? (a) frosted glass (b) a brick (c) a book (d) clean water
  34. 34.🔮 Predict: on a fully cloudy day, the sundial ___. (a) does not work well (b) runs faster (c) shows two times (d) works better
  35. 35.⚖️ Fair test — how does the shadow of a stick change through the day? True or false: the same stick is what we measure. (a) False (b) True
  36. 36.🔍 Which is the odd one out? (a) clear plastic film (b) frosted glass (c) tissue paper (d) butter paper
  37. 37.🔍 Which is the odd one out? (a) a wooden board (b) your hand (c) oily paper (d) a steel plate
  38. 38.🔮 Predict: the Sun is low in the evening sky. The stick’s shadow is ___. (a) missing (b) short (c) long (d) round
  39. 39.⚖️ 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
  40. 40.🔦 Which of these is translucent? (a) a book (b) a wooden board (c) tissue paper (d) a steel plate

Answer key

  1. the time of day
  2. False
  3. True
  4. False
  5. opaque
  6. a magnet
  7. bigger
  8. False
  9. needed
  10. transparent
  11. shadow length
  12. True
  13. the stick kept upright
  14. needed
  15. a steel plate
  16. needed
  17. False
  18. translucent
  19. False
  20. a balloon
  21. a clock to check
  22. yeast
  23. True
  24. opaque
  25. not needed
  26. True
  27. a mirror
  28. not needed
  29. True
  30. a cap or hat
  31. False
  32. transparent
  33. clean water
  34. does not work well
  35. False
  36. clear plastic film
  37. oily paper
  38. long
  39. True
  40. tissue paper

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