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Shadow and Sundial Experiment Worksheet

Science experiments lesson 27: Shadows and a sundial · Set 617 · 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.🔦 Which of these is opaque? (a) tissue paper (b) clear plastic film (c) air (d) your hand
  2. 2.🔦 Is a wooden board opaque, translucent or transparent? (a) opaque (b) translucent (c) transparent
  3. 3.🔍 Which is the odd one out? (a) tissue paper (b) a wooden board (c) a steel plate (d) a book
  4. 4.🔦 Which of these is opaque? (a) air (b) oily paper (c) a wooden board (d) frosted glass
  5. 5.🧺 Do we need a mirror for the shadow clock? (a) not needed (b) needed
  6. 6.True or false: a mirror is needed for the shadow clock. (a) False (b) True
  7. 7.🔦 Which of these is opaque? (a) a steel plate (b) tissue paper (c) clear glass (d) butter paper
  8. 8.🔮 Predict: on a fully cloudy day, the sundial ___. (a) shows two times (b) runs faster (c) works better (d) does not work well
  9. 9.🧺 Which of these is needed for the shadow clock? (a) turmeric powder (b) a mirror (c) a clock to check (d) a battery cell
  10. 10.True or false: a clock to check is not needed for the shadow clock. (a) True (b) False
  11. 11.🧺 Which of these is needed for the shadow clock? (a) turmeric powder (b) a sunny open place (c) yeast (d) a magnet
  12. 12.🧺 Three of these are needed for the shadow clock. Which one is NOT needed? (a) a magnet (b) a straight stick (c) a clock to check (d) chalk to mark shadows
  13. 13.True or false: a straight stick is needed for the shadow clock. (a) False (b) True
  14. 14.🛟 While watching shadows outdoors, what must you never do? (a) sit in the shade (b) wear a cap (c) look straight at the Sun (d) mark with chalk
  15. 15.🧺 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 clock to check (d) a balloon
  16. 16.⚖️ 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
  17. 17.⚖️ 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) False (b) True
  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) True (b) False
  19. 19.⚖️ 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) True (b) False
  20. 20.🔦 Which of these is translucent? (a) butter paper (b) a brick (c) air (d) a steel plate
  21. 21.🔦 Which of these is translucent? (a) a wooden board (b) clean water (c) frosted glass (d) a brick
  22. 22.⚖️ 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
  23. 23.True or false: butter paper is translucent. (a) False (b) True
  24. 24.True or false: chalk to mark shadows is not needed for the shadow clock. (a) False (b) True
  25. 25.True or false: yeast is not needed for the shadow clock. (a) True (b) False
  26. 26.🛟 What should you wear for a long time in the hot sun? (a) a woollen sweater (b) nothing on your head (c) a raincoat (d) a cap or hat
  27. 27.🔍 Which is the odd one out? (a) frosted glass (b) clear plastic film (c) clean water (d) clear glass
  28. 28.🔦 Is a book opaque, translucent or transparent? (a) transparent (b) opaque (c) translucent
  29. 29.🔍 Which is the odd one out? (a) tissue paper (b) a steel plate (c) butter paper (d) oily paper
  30. 30.🔮 Predict: the Sun is low in the evening sky. The stick’s shadow is ___. (a) short (b) round (c) long (d) missing
  31. 31.🧺 Three of these are needed for the shadow clock. Which one is NOT needed? (a) a straight stick (b) a sunny open place (c) turmeric powder (d) a clock to check
  32. 32.True or false: a magnet is needed for the shadow clock. (a) False (b) True
  33. 33.🧺 Do we need a clock to check for the shadow clock? (a) needed (b) not needed
  34. 34.🧺 Do we need turmeric powder for the shadow clock? (a) not needed (b) needed
  35. 35.🔮 Predict: you move a torch closer to your hand. The shadow on the wall gets ___. (a) smaller (b) coloured (c) bigger (d) brighter
  36. 36.True or false: clear glass is opaque. (a) True (b) False
  37. 37.🧺 Which of these is not needed for the shadow clock? (a) a sunny open place (b) a straight stick (c) a balloon (d) chalk to mark shadows
  38. 38.⚖️ Fair test — how does the shadow of a stick change through the day? True or false: the same spot is kept the same. (a) True (b) False
  39. 39.⚖️ Fair test — how does the shadow of a stick change through the day? What do we do with “the time of day”? (a) we measure it (b) we change it (c) we keep it the same
  40. 40.True or false: a sunny open place is needed for the shadow clock. (a) True (b) False

Answer key

  1. your hand
  2. opaque
  3. tissue paper
  4. a wooden board
  5. not needed
  6. False
  7. a steel plate
  8. does not work well
  9. a clock to check
  10. False
  11. a sunny open place
  12. a magnet
  13. True
  14. look straight at the Sun
  15. a balloon
  16. we keep it the same
  17. True
  18. False
  19. False
  20. butter paper
  21. frosted glass
  22. we keep it the same
  23. True
  24. False
  25. True
  26. a cap or hat
  27. frosted glass
  28. opaque
  29. a steel plate
  30. long
  31. turmeric powder
  32. False
  33. needed
  34. not needed
  35. bigger
  36. False
  37. a balloon
  38. True
  39. we change it
  40. True

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