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Shadow and Sundial Experiment Worksheet

Science experiments lesson 27: Shadows and a sundial · Set 36 · 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.

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  1. 1.🧺 Which of these is not needed for the shadow clock? (a) chalk to mark shadows (b) a straight stick (c) a clock to check (d) turmeric powder
  2. 2.🧺 Do we need chalk to mark shadows for the shadow clock? (a) not needed (b) needed
  3. 3.🧺 Three of these are needed for the shadow clock. Which one is NOT needed? (a) a clock to check (b) a sunny open place (c) turmeric powder (d) chalk to mark shadows
  4. 4.True or false: a wooden board is translucent. (a) True (b) False
  5. 5.🔦 Is a wooden board opaque, translucent or transparent? (a) opaque (b) transparent (c) translucent
  6. 6.🧺 Do we need a sunny open place for the shadow clock? (a) not needed (b) needed
  7. 7.🧺 Do we need a battery cell for the shadow clock? (a) needed (b) not needed
  8. 8.⚖️ 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 spot (b) the time of day (c) the same stick (d) shadow length
  9. 9.🔦 Which of these is opaque? (a) a steel plate (b) clear plastic film (c) oily paper (d) frosted glass
  10. 10.🔦 Which of these is translucent? (a) clear glass (b) clean water (c) oily paper (d) a steel plate
  11. 11.🔦 Which of these is opaque? (a) frosted glass (b) a book (c) air (d) oily paper
  12. 12.🧺 Three of these are needed for the shadow clock. Which one is NOT needed? (a) chalk to mark shadows (b) a clock to check (c) a sunny open place (d) a magnet
  13. 13.True or false: a mirror is not needed for the shadow clock. (a) True (b) False
  14. 14.🛟 What should you wear for a long time in the hot sun? (a) nothing on your head (b) a cap or hat (c) a woollen sweater (d) a raincoat
  15. 15.True or false: oily paper is translucent. (a) False (b) True
  16. 16.🔦 Which of these is translucent? (a) your hand (b) tissue paper (c) clear glass (d) clean water
  17. 17.True or false: oily paper is opaque. (a) True (b) False
  18. 18.🔦 Is air opaque, translucent or transparent? (a) translucent (b) opaque (c) transparent
  19. 19.True or false: a straight stick is needed for the shadow clock. (a) True (b) False
  20. 20.🧺 Three of these are needed for the shadow clock. Which one is NOT needed? (a) a mirror (b) a sunny open place (c) a clock to check (d) a straight stick
  21. 21.🔦 Is a brick opaque, translucent or transparent? (a) transparent (b) opaque (c) translucent
  22. 22.🔦 Is frosted glass opaque, translucent or transparent? (a) translucent (b) transparent (c) opaque
  23. 23.True or false: a book is opaque. (a) True (b) False
  24. 24.🧺 Three of these are needed for the shadow clock. Which one is NOT needed? (a) yeast (b) a sunny open place (c) a straight stick (d) chalk to mark shadows
  25. 25.🔍 Which is the odd one out? (a) a steel plate (b) a wooden board (c) your hand (d) clean water
  26. 26.🧺 Do we need a mirror for the shadow clock? (a) not needed (b) needed
  27. 27.True or false: a magnet is needed for the shadow clock. (a) True (b) False
  28. 28.True or false: tissue paper is transparent. (a) False (b) True
  29. 29.⚖️ Fair test — how does the shadow of a stick change through the day? True or false: shadow length is what we measure. (a) True (b) False
  30. 30.🔦 Which of these is transparent? (a) air (b) your hand (c) oily paper (d) a steel plate
  31. 31.⚖️ 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
  32. 32.🧺 Do we need turmeric powder for the shadow clock? (a) not needed (b) needed
  33. 33.⚖️ Fair test — how does the shadow of a stick change through the day? Which of these is what we measure? (a) the same spot (b) the stick kept upright (c) shadow length (d) the time of day
  34. 34.🔦 Which of these is translucent? (a) clear plastic film (b) your hand (c) a wooden board (d) butter paper
  35. 35.⚖️ 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 change it (c) we keep it the same
  36. 36.🔦 Which of these is opaque? (a) butter paper (b) clean water (c) a wooden board (d) air
  37. 37.🔦 Is clear glass opaque, translucent or transparent? (a) transparent (b) opaque (c) translucent
  38. 38.🧺 Which of these is not needed for the shadow clock? (a) a straight stick (b) a balloon (c) a clock to check (d) a sunny open place
  39. 39.🛟 While watching shadows outdoors, what must you never do? (a) sit in the shade (b) mark with chalk (c) look straight at the Sun (d) wear a cap
  40. 40.⚖️ 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) False (b) True

Answer key

  1. turmeric powder
  2. needed
  3. turmeric powder
  4. False
  5. opaque
  6. needed
  7. not needed
  8. the time of day
  9. a steel plate
  10. oily paper
  11. a book
  12. a magnet
  13. True
  14. a cap or hat
  15. True
  16. tissue paper
  17. False
  18. transparent
  19. True
  20. a mirror
  21. opaque
  22. translucent
  23. True
  24. yeast
  25. clean water
  26. not needed
  27. False
  28. False
  29. True
  30. air
  31. True
  32. not needed
  33. shadow length
  34. butter paper
  35. we keep it the same
  36. a wooden board
  37. transparent
  38. a balloon
  39. look straight at the Sun
  40. False

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