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Shadow and Sundial Experiment Worksheet

Science experiments lesson 27: Shadows and a sundial · Set 374 · 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: chalk to mark shadows is needed for the shadow clock. (a) True (b) False
  2. 2.🔦 Is clear plastic film opaque, translucent or transparent? (a) translucent (b) opaque (c) transparent
  3. 3.True or false: clean water is opaque. (a) True (b) False
  4. 4.🧺 Do we need a battery cell for the shadow clock? (a) needed (b) not needed
  5. 5.🛟 While watching shadows outdoors, what must you never do? (a) look straight at the Sun (b) sit in the shade (c) mark with chalk (d) wear a cap
  6. 6.True or false: a wooden board is opaque. (a) False (b) True
  7. 7.⚖️ 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) True (b) False
  8. 8.🔮 Predict: on a fully cloudy day, the sundial ___. (a) shows two times (b) does not work well (c) runs faster (d) works better
  9. 9.True or false: tissue paper is opaque. (a) False (b) True
  10. 10.🔍 Which is the odd one out? (a) clear plastic film (b) a book (c) clear glass (d) air
  11. 11.True or false: your hand is transparent. (a) False (b) True
  12. 12.🧺 Do we need yeast for the shadow clock? (a) needed (b) not needed
  13. 13.True or false: a book is transparent. (a) True (b) False
  14. 14.🧺 Which of these is not needed for the shadow clock? (a) a straight stick (b) a clock to check (c) yeast (d) a sunny open place
  15. 15.🧺 Do we need a magnet for the shadow clock? (a) needed (b) not needed
  16. 16.True or false: your hand is opaque. (a) False (b) True
  17. 17.🧺 Which of these is not needed for the shadow clock? (a) chalk to mark shadows (b) a sunny open place (c) turmeric powder (d) a straight stick
  18. 18.🌅 In the morning the Sun is in the east. Which way does a shadow point? (a) west (b) north (c) east (d) up
  19. 19.🧺 Do we need a straight stick for the shadow clock? (a) needed (b) not needed
  20. 20.⚖️ 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
  21. 21.⚖️ 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) shadow length (c) the stick kept upright (d) the same spot
  22. 22.🧺 Which of these is needed for the shadow clock? (a) yeast (b) a balloon (c) a straight stick (d) a magnet
  23. 23.🔦 Which of these is translucent? (a) a wooden board (b) butter paper (c) a steel plate (d) clear glass
  24. 24.🔦 Which of these is opaque? (a) tissue paper (b) clear glass (c) a wooden board (d) frosted glass
  25. 25.🔦 Is a book opaque, translucent or transparent? (a) transparent (b) opaque (c) translucent
  26. 26.⚖️ 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 same spot (c) the same stick (d) shadow length
  27. 27.True or false: yeast is not needed for the shadow clock. (a) True (b) False
  28. 28.True or false: air is translucent. (a) False (b) True
  29. 29.🔦 Is your hand opaque, translucent or transparent? (a) transparent (b) opaque (c) translucent
  30. 30.🧺 Three of these are needed for the shadow clock. Which one is NOT needed? (a) a straight stick (b) a sunny open place (c) a balloon (d) a clock to check
  31. 31.⚖️ Fair test — how does the shadow of a stick change through the day? Which of these is kept the same? (a) shadow length (b) the stick kept upright (c) the time of day
  32. 32.🛟 What should you wear for a long time in the hot sun? (a) a raincoat (b) a woollen sweater (c) a cap or hat (d) nothing on your head
  33. 33.🧺 Which of these is not needed for the shadow clock? (a) a battery cell (b) a straight stick (c) chalk to mark shadows (d) a clock to check
  34. 34.True or false: clear glass is transparent. (a) True (b) False
  35. 35.⚖️ 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 keep it the same (c) we change it
  36. 36.🔍 Which is the odd one out? (a) a wooden board (b) frosted glass (c) tissue paper (d) butter paper
  37. 37.True or false: a battery cell is not needed for the shadow clock. (a) False (b) True
  38. 38.🧺 Which of these is needed for the shadow clock? (a) a balloon (b) a magnet (c) chalk to mark shadows (d) yeast
  39. 39.🔍 Which is the odd one out? (a) clear plastic film (b) tissue paper (c) butter paper (d) frosted glass
  40. 40.🧺 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) a sunny open place

Answer key

  1. True
  2. transparent
  3. False
  4. not needed
  5. look straight at the Sun
  6. True
  7. True
  8. does not work well
  9. False
  10. a book
  11. False
  12. not needed
  13. False
  14. yeast
  15. not needed
  16. True
  17. turmeric powder
  18. west
  19. needed
  20. we change it
  21. shadow length
  22. a straight stick
  23. butter paper
  24. a wooden board
  25. opaque
  26. the time of day
  27. True
  28. False
  29. opaque
  30. a balloon
  31. the stick kept upright
  32. a cap or hat
  33. a battery cell
  34. True
  35. we measure it
  36. a wooden board
  37. True
  38. chalk to mark shadows
  39. clear plastic film
  40. a magnet

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