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Shadow and Sundial Experiment Worksheet

Science experiments lesson 27: Shadows and a sundial · Set 559 · 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 is the odd one out? (a) a book (b) clean water (c) clear glass (d) air
  2. 2.True or false: a sunny open place is not needed for the shadow clock. (a) True (b) False
  3. 3.🧺 Do we need a sunny open place for the shadow clock? (a) needed (b) not needed
  4. 4.True or false: your hand is opaque. (a) False (b) True
  5. 5.🔍 Which is the odd one out? (a) air (b) a steel plate (c) your hand (d) a brick
  6. 6.🧺 Which of these is needed for the shadow clock? (a) a magnet (b) turmeric powder (c) a battery cell (d) a sunny open place
  7. 7.⚖️ 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
  8. 8.🧺 Three of these are needed for the shadow clock. Which one is NOT needed? (a) a clock to check (b) a mirror (c) a sunny open place (d) a straight stick
  9. 9.True or false: a magnet is not needed for the shadow clock. (a) True (b) False
  10. 10.🧺 Three of these are needed for the shadow clock. Which one is NOT needed? (a) chalk to mark shadows (b) a clock to check (c) a sunny open place (d) a magnet
  11. 11.⚖️ 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 time of day (c) the same stick (d) the stick kept upright
  12. 12.🌞 When is a stick’s shadow the shortest? (a) late evening (b) around noon (c) at night (d) early morning
  13. 13.True or false: turmeric powder is not needed for the shadow clock. (a) False (b) True
  14. 14.🛟 What should you wear for a long time in the hot sun? (a) a woollen sweater (b) nothing on your head (c) a cap or hat (d) a raincoat
  15. 15.🛟 While watching shadows outdoors, what must you never do? (a) mark with chalk (b) wear a cap (c) sit in the shade (d) look straight at the Sun
  16. 16.🌅 In the morning the Sun is in the east. Which way does a shadow point? (a) north (b) east (c) up (d) west
  17. 17.🧺 Do we need yeast for the shadow clock? (a) needed (b) not needed
  18. 18.🧺 Which of these is needed for the shadow clock? (a) a clock to check (b) a balloon (c) a mirror (d) yeast
  19. 19.🔦 Is a book opaque, translucent or transparent? (a) opaque (b) translucent (c) transparent
  20. 20.🔮 Predict: you move a torch closer to your hand. The shadow on the wall gets ___. (a) brighter (b) bigger (c) smaller (d) coloured
  21. 21.True or false: tissue paper is opaque. (a) True (b) False
  22. 22.True or false: chalk to mark shadows is needed for the shadow clock. (a) False (b) True
  23. 23.🧺 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 sunny open place
  24. 24.True or false: a brick is transparent. (a) False (b) True
  25. 25.⚖️ Fair test — how does the shadow of a stick change through the day? What do we do with “shadow length”? (a) we keep it the same (b) we change it (c) we measure it
  26. 26.🧺 Which of these is not needed for the shadow clock? (a) a sunny open place (b) chalk to mark shadows (c) a battery cell (d) a straight stick
  27. 27.🧺 Do we need a straight stick for the shadow clock? (a) not needed (b) needed
  28. 28.True or false: a magnet is needed for the shadow clock. (a) False (b) True
  29. 29.True or false: frosted glass is translucent. (a) True (b) False
  30. 30.⚖️ 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
  31. 31.🔮 Predict: on a fully cloudy day, the sundial ___. (a) shows two times (b) works better (c) does not work well (d) runs faster
  32. 32.🔍 Which is the odd one out? (a) a brick (b) clear plastic film (c) air (d) clear glass
  33. 33.🧺 Which of these is needed for the shadow clock? (a) a mirror (b) turmeric powder (c) a magnet (d) a straight stick
  34. 34.🧺 Which of these is not needed for the shadow clock? (a) a sunny open place (b) a balloon (c) a straight stick (d) chalk to mark shadows
  35. 35.True or false: a balloon is needed for the shadow clock. (a) True (b) False
  36. 36.True or false: frosted glass is opaque. (a) False (b) True
  37. 37.⚖️ 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
  38. 38.⚖️ Fair test — how does the shadow of a stick change through the day? True or false: the stick kept upright is what we measure. (a) True (b) False
  39. 39.🔍 Which is the odd one out? (a) clean water (b) clear glass (c) air (d) butter paper
  40. 40.True or false: a brick is opaque. (a) False (b) True

Answer key

  1. a book
  2. False
  3. needed
  4. True
  5. air
  6. a sunny open place
  7. we change it
  8. a mirror
  9. True
  10. a magnet
  11. shadow length
  12. around noon
  13. True
  14. a cap or hat
  15. look straight at the Sun
  16. west
  17. not needed
  18. a clock to check
  19. opaque
  20. bigger
  21. False
  22. True
  23. a balloon
  24. False
  25. we measure it
  26. a battery cell
  27. needed
  28. False
  29. True
  30. we keep it the same
  31. does not work well
  32. a brick
  33. a straight stick
  34. a balloon
  35. False
  36. False
  37. True
  38. False
  39. butter paper
  40. True

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