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Shadow and Sundial Experiment Worksheet

Science experiments lesson 27: Shadows and a sundial · Set 102 · 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.⚖️ Fair test — how does the shadow of a stick change through the day? True or false: the same stick is kept the same. (a) True (b) False
  2. 2.🔦 Which of these is translucent? (a) a wooden board (b) a steel plate (c) butter paper (d) clear plastic film
  3. 3.🔮 Predict: on a fully cloudy day, the sundial ___. (a) shows two times (b) runs faster (c) works better (d) does not work well
  4. 4.🔦 Is a steel plate opaque, translucent or transparent? (a) translucent (b) transparent (c) opaque
  5. 5.True or false: oily paper is transparent. (a) True (b) False
  6. 6.⚖️ Fair test — how does the shadow of a stick change through the day? True or false: the time of day is kept the same. (a) False (b) True
  7. 7.🔍 Which is the odd one out? (a) clear glass (b) butter paper (c) air (d) clean water
  8. 8.🔦 Which of these is opaque? (a) clean water (b) clear glass (c) a steel plate (d) frosted glass
  9. 9.⚖️ Fair test — how does the shadow of a stick change through the day? Which of these is the one thing we change? (a) the stick kept upright (b) the same stick (c) the same spot (d) the time of day
  10. 10.🔦 Which of these is opaque? (a) air (b) a brick (c) clean water (d) oily paper
  11. 11.🔍 Which is the odd one out? (a) a book (b) a brick (c) a wooden board (d) tissue paper
  12. 12.🔍 Which is the odd one out? (a) clean water (b) butter paper (c) frosted glass (d) tissue paper
  13. 13.True or false: clear glass is translucent. (a) False (b) True
  14. 14.🧺 Three of these are needed for the shadow clock. Which one is NOT needed? (a) chalk to mark shadows (b) a balloon (c) a straight stick (d) a clock to check
  15. 15.⚖️ 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 keep it the same (c) we measure it
  16. 16.🧺 Do we need a magnet for the shadow clock? (a) not needed (b) needed
  17. 17.⚖️ 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) the stick kept upright (c) shadow length (d) the time of day
  18. 18.🛟 What should you wear for a long time in the hot sun? (a) a raincoat (b) nothing on your head (c) a woollen sweater (d) a cap or hat
  19. 19.🧺 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) a mirror
  20. 20.True or false: a steel plate is translucent. (a) False (b) True
  21. 21.🌞 When is a stick’s shadow the shortest? (a) late evening (b) at night (c) around noon (d) early morning
  22. 22.⚖️ 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 change it (c) we keep it the same
  23. 23.🧺 Do we need turmeric powder for the shadow clock? (a) needed (b) not needed
  24. 24.🔦 Which of these is opaque? (a) clean water (b) a wooden board (c) tissue paper (d) air
  25. 25.🔦 Which of these is transparent? (a) a wooden board (b) oily paper (c) a steel plate (d) clean water
  26. 26.True or false: your hand is transparent. (a) False (b) True
  27. 27.True or false: yeast is needed for the shadow clock. (a) False (b) True
  28. 28.True or false: butter paper is translucent. (a) True (b) False
  29. 29.🧺 Which of these is not needed for the shadow clock? (a) chalk to mark shadows (b) a clock to check (c) a mirror (d) a straight stick
  30. 30.🧺 Three of these are needed for the shadow clock. Which one is NOT needed? (a) a straight stick (b) turmeric powder (c) a sunny open place (d) chalk to mark shadows
  31. 31.True or false: a book is opaque. (a) True (b) False
  32. 32.🔮 Predict: the Sun is low in the evening sky. The stick’s shadow is ___. (a) round (b) short (c) missing (d) long
  33. 33.🔍 Which is the odd one out? (a) a wooden board (b) oily paper (c) frosted glass (d) butter paper
  34. 34.True or false: a magnet is needed for the shadow clock. (a) True (b) False
  35. 35.🧺 Which of these is needed for the shadow clock? (a) yeast (b) chalk to mark shadows (c) a balloon (d) turmeric powder
  36. 36.🧺 Do we need chalk to mark shadows for the shadow clock? (a) needed (b) not needed
  37. 37.🧺 Do we need a straight stick for the shadow clock? (a) needed (b) not needed
  38. 38.⚖️ Fair test — how does the shadow of a stick change through the day? True or false: the time of day is what we measure. (a) False (b) True
  39. 39.🧺 Three of these are needed for the shadow clock. Which one is NOT needed? (a) a magnet (b) a sunny open place (c) a straight stick (d) chalk to mark shadows
  40. 40.⚖️ Fair test — how does the shadow of a stick change through the day? What do we do with “the same spot”? (a) we measure it (b) we keep it the same (c) we change it

Answer key

  1. True
  2. butter paper
  3. does not work well
  4. opaque
  5. False
  6. False
  7. butter paper
  8. a steel plate
  9. the time of day
  10. a brick
  11. tissue paper
  12. clean water
  13. False
  14. a balloon
  15. we measure it
  16. not needed
  17. shadow length
  18. a cap or hat
  19. a mirror
  20. False
  21. around noon
  22. we keep it the same
  23. not needed
  24. a wooden board
  25. clean water
  26. False
  27. False
  28. True
  29. a mirror
  30. turmeric powder
  31. True
  32. long
  33. a wooden board
  34. False
  35. chalk to mark shadows
  36. needed
  37. needed
  38. False
  39. a magnet
  40. we keep it the same

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