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Shadow and Sundial Experiment Worksheet

Science experiments lesson 27: Shadows and a sundial · Set 569 · 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.🔦 Is a wooden board opaque, translucent or transparent? (a) opaque (b) translucent (c) transparent
  2. 2.🔮 Predict: you move a torch closer to your hand. The shadow on the wall gets ___. (a) brighter (b) smaller (c) coloured (d) bigger
  3. 3.True or false: oily paper is transparent. (a) True (b) False
  4. 4.True or false: a magnet is needed for the shadow clock. (a) False (b) True
  5. 5.⚖️ Fair test — how does the shadow of a stick change through the day? Which of these is what we measure? (a) shadow length (b) the same stick (c) the stick kept upright (d) the same spot
  6. 6.True or false: butter paper is opaque. (a) True (b) False
  7. 7.⚖️ 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 time of day (c) the same stick (d) shadow length
  8. 8.🔦 Is clean water opaque, translucent or transparent? (a) translucent (b) opaque (c) transparent
  9. 9.🧺 Do we need a straight stick for the shadow clock? (a) not needed (b) needed
  10. 10.🧺 Do we need a balloon for the shadow clock? (a) not needed (b) needed
  11. 11.🔦 Is frosted glass opaque, translucent or transparent? (a) transparent (b) opaque (c) translucent
  12. 12.True or false: clean water is transparent. (a) True (b) False
  13. 13.🧺 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
  14. 14.⚖️ 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) False (b) True
  15. 15.🧺 Do we need a sunny open place for the shadow clock? (a) needed (b) not needed
  16. 16.🧺 Do we need chalk to mark shadows for the shadow clock? (a) not needed (b) needed
  17. 17.⚖️ 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
  18. 18.🧺 Which of these is needed for the shadow clock? (a) a mirror (b) yeast (c) chalk to mark shadows (d) turmeric powder
  19. 19.True or false: butter paper is translucent. (a) True (b) False
  20. 20.🔦 Which of these is transparent? (a) clean water (b) frosted glass (c) oily paper (d) a steel plate
  21. 21.⚖️ 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) True (b) False
  22. 22.🛟 What should you wear for a long time in the hot sun? (a) a cap or hat (b) a raincoat (c) a woollen sweater (d) nothing on your head
  23. 23.🌅 In the morning the Sun is in the east. Which way does a shadow point? (a) up (b) west (c) east (d) north
  24. 24.True or false: clear plastic film is translucent. (a) False (b) True
  25. 25.⚖️ 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
  26. 26.True or false: a balloon is not needed for the shadow clock. (a) False (b) True
  27. 27.🧺 Three of these are needed for the shadow clock. Which one is NOT needed? (a) chalk to mark shadows (b) yeast (c) a sunny open place (d) a straight stick
  28. 28.🔍 Which is the odd one out? (a) a brick (b) clean water (c) clear glass (d) air
  29. 29.True or false: a clock to check is needed for the shadow clock. (a) False (b) True
  30. 30.⚖️ 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) True (b) False
  31. 31.⚖️ Fair test — how does the shadow of a stick change through the day? What do we do with “the same spot”? (a) we change it (b) we measure it (c) we keep it the same
  32. 32.🧺 Which of these is not needed for the shadow clock? (a) chalk to mark shadows (b) a mirror (c) a clock to check (d) a straight stick
  33. 33.🔮 Predict: on a fully cloudy day, the sundial ___. (a) runs faster (b) shows two times (c) works better (d) does not work well
  34. 34.True or false: air is translucent. (a) False (b) True
  35. 35.⚖️ 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
  36. 36.🧺 Which of these is needed for the shadow clock? (a) a straight stick (b) a balloon (c) a magnet (d) a mirror
  37. 37.True or false: chalk to mark shadows is not needed for the shadow clock. (a) True (b) False
  38. 38.🔍 Which is the odd one out? (a) your hand (b) a wooden board (c) a steel plate (d) air
  39. 39.🧺 Which of these is not needed for the shadow clock? (a) a straight stick (b) a sunny open place (c) chalk to mark shadows (d) a balloon
  40. 40.🕰️ What is a sundial used for? (a) weighing things (b) making rainbows (c) measuring rain (d) telling the time

Answer key

  1. opaque
  2. bigger
  3. False
  4. False
  5. shadow length
  6. False
  7. the time of day
  8. transparent
  9. needed
  10. not needed
  11. translucent
  12. True
  13. a magnet
  14. True
  15. needed
  16. needed
  17. False
  18. chalk to mark shadows
  19. True
  20. clean water
  21. False
  22. a cap or hat
  23. west
  24. False
  25. False
  26. True
  27. yeast
  28. a brick
  29. True
  30. False
  31. we keep it the same
  32. a mirror
  33. does not work well
  34. False
  35. we keep it the same
  36. a straight stick
  37. False
  38. air
  39. a balloon
  40. telling the time

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