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Shadow and Sundial Experiment Worksheet

Science experiments lesson 27: Shadows and a sundial · Set 645 · 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: your hand is opaque. (a) True (b) False
  2. 2.⚖️ 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
  3. 3.🧺 Which of these is not needed for the shadow clock? (a) a straight stick (b) a sunny open place (c) chalk to mark shadows (d) yeast
  4. 4.True or false: a clock to check is not needed for the shadow clock. (a) True (b) False
  5. 5.🧺 Three of these are needed for the shadow clock. Which one is NOT needed? (a) a battery cell (b) a sunny open place (c) chalk to mark shadows (d) a straight stick
  6. 6.🔦 Which of these is transparent? (a) oily paper (b) a wooden board (c) clear plastic film (d) tissue paper
  7. 7.🧺 Which of these is needed for the shadow clock? (a) a sunny open place (b) turmeric powder (c) yeast (d) a magnet
  8. 8.🔍 Which is the odd one out? (a) butter paper (b) air (c) clear glass (d) clean water
  9. 9.🛟 What should you wear for a long time in the hot sun? (a) a raincoat (b) a woollen sweater (c) nothing on your head (d) a cap or hat
  10. 10.⚖️ Fair test — how does the shadow of a stick change through the day? Which of these is what we measure? (a) shadow length (b) the stick kept upright (c) the same stick (d) the same spot
  11. 11.🧺 Which of these is needed for the shadow clock? (a) a balloon (b) yeast (c) a straight stick (d) a battery cell
  12. 12.🧺 Which of these is not needed for the shadow clock? (a) turmeric powder (b) chalk to mark shadows (c) a sunny open place (d) a straight stick
  13. 13.🧺 Three of these are needed for the shadow clock. Which one is NOT needed? (a) a straight stick (b) chalk to mark shadows (c) a clock to check (d) turmeric powder
  14. 14.True or false: a book is transparent. (a) False (b) True
  15. 15.True or false: clean water is transparent. (a) True (b) False
  16. 16.🧺 Which of these is not needed for the shadow clock? (a) a straight stick (b) a magnet (c) a clock to check (d) chalk to mark shadows
  17. 17.🔦 Is clean water opaque, translucent or transparent? (a) opaque (b) transparent (c) translucent
  18. 18.True or false: a wooden board is opaque. (a) False (b) True
  19. 19.🔍 Which is the odd one out? (a) your hand (b) tissue paper (c) frosted glass (d) oily paper
  20. 20.🔍 Which is the odd one out? (a) clear glass (b) tissue paper (c) frosted glass (d) butter paper
  21. 21.🧺 Do we need a balloon for the shadow clock? (a) not needed (b) needed
  22. 22.True or false: a straight stick is not needed for the shadow clock. (a) False (b) True
  23. 23.True or false: a battery cell is not needed for the shadow clock. (a) False (b) True
  24. 24.🔮 Predict: you move a torch closer to your hand. The shadow on the wall gets ___. (a) bigger (b) smaller (c) coloured (d) brighter
  25. 25.🔦 Is butter paper opaque, translucent or transparent? (a) opaque (b) transparent (c) translucent
  26. 26.⚖️ Fair test — how does the shadow of a stick change through the day? Which of these is kept the same? (a) the stick kept upright (b) the time of day (c) shadow length
  27. 27.🔍 Which is the odd one out? (a) clear plastic film (b) oily paper (c) air (d) clean water
  28. 28.🧺 Do we need chalk to mark shadows for the shadow clock? (a) needed (b) not needed
  29. 29.🔦 Which of these is translucent? (a) clean water (b) your hand (c) oily paper (d) air
  30. 30.True or false: a steel plate is opaque. (a) True (b) False
  31. 31.🧺 Three of these are needed for the shadow clock. Which one is NOT needed? (a) a clock to check (b) a balloon (c) a straight stick (d) a sunny open place
  32. 32.⚖️ Fair test — how does the shadow of a stick change through the day? True or false: the time of day is kept the same. (a) True (b) False
  33. 33.🧺 Which of these is not needed for the shadow clock? (a) chalk to mark shadows (b) a sunny open place (c) a clock to check (d) a mirror
  34. 34.⚖️ Fair test — how does the shadow of a stick change through the day? What do we do with “the same stick”? (a) we measure it (b) we keep it the same (c) we change it
  35. 35.🔦 Is a brick opaque, translucent or transparent? (a) translucent (b) opaque (c) transparent
  36. 36.⚖️ Fair test — how does the shadow of a stick change through the day? What do we do with “shadow length”? (a) we keep it the same (b) we change it (c) we measure it
  37. 37.🔦 Which of these is translucent? (a) clear glass (b) your hand (c) a brick (d) frosted glass
  38. 38.⚖️ 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 change it (c) we measure it
  39. 39.True or false: clear plastic film is transparent. (a) False (b) True
  40. 40.🌞 When is a stick’s shadow the shortest? (a) at night (b) early morning (c) late evening (d) around noon

Answer key

  1. True
  2. we change it
  3. yeast
  4. False
  5. a battery cell
  6. clear plastic film
  7. a sunny open place
  8. butter paper
  9. a cap or hat
  10. shadow length
  11. a straight stick
  12. turmeric powder
  13. turmeric powder
  14. False
  15. True
  16. a magnet
  17. transparent
  18. True
  19. your hand
  20. clear glass
  21. not needed
  22. False
  23. True
  24. bigger
  25. translucent
  26. the stick kept upright
  27. oily paper
  28. needed
  29. oily paper
  30. True
  31. a balloon
  32. False
  33. a mirror
  34. we keep it the same
  35. opaque
  36. we measure it
  37. frosted glass
  38. we keep it the same
  39. True
  40. around noon

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