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Shadow and Sundial Experiment Worksheet

Science experiments lesson 27: Shadows and a sundial · Set 501 · 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.🧺 Do we need turmeric powder for the shadow clock? (a) not needed (b) needed
  2. 2.🔦 Which of these is translucent? (a) a wooden board (b) oily paper (c) clear plastic film (d) a book
  3. 3.True or false: a brick is opaque. (a) False (b) True
  4. 4.🔮 Predict: on a fully cloudy day, the sundial ___. (a) runs faster (b) shows two times (c) does not work well (d) works better
  5. 5.🔮 Predict: the Sun is low in the evening sky. The stick’s shadow is ___. (a) missing (b) long (c) short (d) round
  6. 6.True or false: oily paper is opaque. (a) True (b) False
  7. 7.🧺 Which of these is not needed for the shadow clock? (a) a clock to check (b) a magnet (c) a sunny open place (d) chalk to mark shadows
  8. 8.🔦 Is a steel plate opaque, translucent or transparent? (a) translucent (b) opaque (c) transparent
  9. 9.🧺 Which of these is needed for the shadow clock? (a) a balloon (b) yeast (c) a magnet (d) a straight stick
  10. 10.🧺 Which of these is not needed for the shadow clock? (a) a straight stick (b) chalk to mark shadows (c) a clock to check (d) a balloon
  11. 11.🧺 Do we need a balloon for the shadow clock? (a) needed (b) not needed
  12. 12.🧺 Do we need chalk to mark shadows for the shadow clock? (a) not needed (b) needed
  13. 13.True or false: a straight stick is not needed for the shadow clock. (a) True (b) False
  14. 14.🔦 Which of these is opaque? (a) air (b) butter paper (c) frosted glass (d) a book
  15. 15.⚖️ 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 same spot (c) the time of day
  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 change it (b) we keep it the same (c) we measure it
  17. 17.True or false: clear glass is opaque. (a) False (b) True
  18. 18.⚖️ 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 stick (b) the stick kept upright (c) shadow length (d) the time of day
  19. 19.⚖️ 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
  20. 20.⚖️ Fair test — how does the shadow of a stick change through the day? What do we do with “the stick kept upright”? (a) we measure it (b) we keep it the same (c) we change it
  21. 21.🛟 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
  22. 22.⚖️ Fair test — how does the shadow of a stick change through the day? True or false: the time of day is the one thing we change. (a) False (b) True
  23. 23.🔦 Is a brick opaque, translucent or transparent? (a) translucent (b) transparent (c) opaque
  24. 24.True or false: a steel plate is opaque. (a) True (b) False
  25. 25.🔦 Which of these is transparent? (a) oily paper (b) frosted glass (c) air (d) tissue paper
  26. 26.⚖️ Fair test — how does the shadow of a stick change through the day? True or false: the same spot is what we measure. (a) True (b) False
  27. 27.True or false: a book is translucent. (a) True (b) False
  28. 28.🕰️ What is a sundial used for? (a) measuring rain (b) telling the time (c) making rainbows (d) weighing things
  29. 29.🧺 Do we need a straight stick for the shadow clock? (a) not needed (b) needed
  30. 30.🔍 Which is the odd one out? (a) a book (b) a wooden board (c) a steel plate (d) clear plastic film
  31. 31.🌞 When is a stick’s shadow the shortest? (a) at night (b) around noon (c) late evening (d) early morning
  32. 32.🔍 Which is the odd one out? (a) a wooden board (b) your hand (c) tissue paper (d) a steel plate
  33. 33.🧺 Three of these are needed for the shadow clock. Which one is NOT needed? (a) a straight stick (b) a clock to check (c) a mirror (d) a sunny open place
  34. 34.🧺 Three of these are needed for the shadow clock. Which one is NOT needed? (a) a clock to check (b) a straight stick (c) a sunny open place (d) yeast
  35. 35.⚖️ 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
  36. 36.True or false: a sunny open place is needed for the shadow clock. (a) False (b) True
  37. 37.🔍 Which is the odd one out? (a) tissue paper (b) a book (c) butter paper (d) frosted glass
  38. 38.🔍 Which is the odd one out? (a) frosted glass (b) tissue paper (c) your hand (d) butter paper
  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 keep it the same (b) we change it (c) we measure it
  40. 40.⚖️ Fair test — how does the shadow of a stick change through the day? True or false: the stick kept upright is the one thing we change. (a) False (b) True

Answer key

  1. not needed
  2. oily paper
  3. True
  4. does not work well
  5. long
  6. False
  7. a magnet
  8. opaque
  9. a straight stick
  10. a balloon
  11. not needed
  12. needed
  13. False
  14. a book
  15. the same spot
  16. we keep it the same
  17. False
  18. the time of day
  19. True
  20. we keep it the same
  21. a cap or hat
  22. True
  23. opaque
  24. True
  25. air
  26. False
  27. False
  28. telling the time
  29. needed
  30. clear plastic film
  31. around noon
  32. tissue paper
  33. a mirror
  34. yeast
  35. True
  36. True
  37. a book
  38. your hand
  39. we change it
  40. False

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