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Shadow and Sundial Experiment Worksheet

Science experiments lesson 27: Shadows and a sundial · Set 715 · 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 translucent? (a) clean water (b) butter paper (c) a book (d) a wooden board
  2. 2.True or false: butter paper is translucent. (a) False (b) True
  3. 3.⚖️ Fair test — how does the shadow of a stick change through the day? True or false: shadow length is what we measure. (a) False (b) True
  4. 4.True or false: turmeric powder is needed for the shadow clock. (a) True (b) False
  5. 5.⚖️ 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
  6. 6.⚖️ 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) False (b) True
  7. 7.True or false: a balloon is needed for the shadow clock. (a) False (b) True
  8. 8.True or false: oily paper is transparent. (a) False (b) True
  9. 9.🔦 Which of these is opaque? (a) clean water (b) a steel plate (c) air (d) butter paper
  10. 10.⚖️ 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
  11. 11.🔦 Is a brick opaque, translucent or transparent? (a) transparent (b) opaque (c) translucent
  12. 12.🛟 What should you wear for a long time in the hot sun? (a) a woollen sweater (b) a raincoat (c) nothing on your head (d) a cap or hat
  13. 13.🧺 Which of these is needed for the shadow clock? (a) turmeric powder (b) a battery cell (c) a magnet (d) a clock to check
  14. 14.🔦 Is air opaque, translucent or transparent? (a) opaque (b) transparent (c) translucent
  15. 15.True or false: a sunny open place is needed for the shadow clock. (a) False (b) True
  16. 16.🔍 Which is the odd one out? (a) frosted glass (b) clear plastic film (c) clean water (d) air
  17. 17.🔮 Predict: on a fully cloudy day, the sundial ___. (a) shows two times (b) runs faster (c) does not work well (d) works better
  18. 18.True or false: a book is opaque. (a) False (b) True
  19. 19.⚖️ 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 same stick (c) the time of day (d) shadow length
  20. 20.🔍 Which is the odd one out? (a) a brick (b) oily paper (c) frosted glass (d) tissue paper
  21. 21.🔦 Is butter paper opaque, translucent or transparent? (a) opaque (b) translucent (c) transparent
  22. 22.🔍 Which is the odd one out? (a) butter paper (b) tissue paper (c) your hand (d) frosted glass
  23. 23.🧺 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) chalk to mark shadows (d) yeast
  24. 24.🧺 Do we need a straight stick for the shadow clock? (a) needed (b) not needed
  25. 25.True or false: a clock to check is not needed for the shadow clock. (a) False (b) True
  26. 26.🧺 Which of these is needed for the shadow clock? (a) a mirror (b) a battery cell (c) chalk to mark shadows (d) a magnet
  27. 27.⚖️ 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
  28. 28.🧺 Do we need a mirror for the shadow clock? (a) needed (b) not needed
  29. 29.🌍 Why does the stick’s shadow move during the day? (a) the stick grows (b) the ground slides (c) Earth keeps spinning (d) the stick walks
  30. 30.🔦 Which of these is transparent? (a) your hand (b) a brick (c) clear glass (d) butter paper
  31. 31.🧺 Three of these are needed for the shadow clock. Which one is NOT needed? (a) a magnet (b) chalk to mark shadows (c) a clock to check (d) a sunny open place
  32. 32.🧺 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 balloon (d) a sunny open place
  33. 33.🔦 Which of these is opaque? (a) tissue paper (b) frosted glass (c) a book (d) clear plastic film
  34. 34.True or false: a battery cell is needed for the shadow clock. (a) True (b) False
  35. 35.True or false: a book is transparent. (a) True (b) False
  36. 36.True or false: yeast is not needed for the shadow clock. (a) False (b) True
  37. 37.⚖️ Fair test — how does the shadow of a stick change through the day? What do we do with “shadow length”? (a) we change it (b) we measure it (c) we keep it the same
  38. 38.🧺 Three of these are needed for the shadow clock. Which one is NOT needed? (a) a battery cell (b) a straight stick (c) a clock to check (d) a sunny open place
  39. 39.🧺 Three of these are needed for the shadow clock. Which one is NOT needed? (a) a mirror (b) a straight stick (c) a sunny open place (d) chalk to mark shadows
  40. 40.🔮 Predict: the Sun is low in the evening sky. The stick’s shadow is ___. (a) long (b) round (c) missing (d) short

Answer key

  1. butter paper
  2. True
  3. True
  4. False
  5. we change it
  6. False
  7. False
  8. False
  9. a steel plate
  10. False
  11. opaque
  12. a cap or hat
  13. a clock to check
  14. transparent
  15. True
  16. frosted glass
  17. does not work well
  18. True
  19. shadow length
  20. a brick
  21. translucent
  22. your hand
  23. yeast
  24. needed
  25. False
  26. chalk to mark shadows
  27. we keep it the same
  28. not needed
  29. Earth keeps spinning
  30. clear glass
  31. a magnet
  32. a balloon
  33. a book
  34. False
  35. False
  36. True
  37. we measure it
  38. a battery cell
  39. a mirror
  40. long

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