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Shadow and Sundial Experiment Worksheet

Science experiments lesson 27: Shadows and a sundial · Set 547 · 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.True or false: a sunny open place is not needed for the shadow clock. (a) False (b) True
  2. 2.True or false: a clock to check is needed for the shadow clock. (a) False (b) True
  3. 3.🛟 What should you wear for a long time in the hot sun? (a) a raincoat (b) nothing on your head (c) a cap or hat (d) a woollen sweater
  4. 4.🔮 Predict: you move a torch closer to your hand. The shadow on the wall gets ___. (a) coloured (b) brighter (c) bigger (d) smaller
  5. 5.🧺 Do we need a mirror for the shadow clock? (a) not needed (b) needed
  6. 6.True or false: clear glass is transparent. (a) True (b) False
  7. 7.True or false: air is opaque. (a) True (b) False
  8. 8.True or false: chalk to mark shadows is needed for the shadow clock. (a) True (b) False
  9. 9.🔦 Is a steel plate opaque, translucent or transparent? (a) opaque (b) transparent (c) translucent
  10. 10.⚖️ 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 measure it (c) we change it
  11. 11.True or false: a straight stick is not needed for the shadow clock. (a) False (b) True
  12. 12.⚖️ 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
  13. 13.⚖️ 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
  14. 14.True or false: clean water is opaque. (a) True (b) False
  15. 15.🧺 Do we need a battery cell for the shadow clock? (a) needed (b) not needed
  16. 16.🧺 Which of these is needed for the shadow clock? (a) chalk to mark shadows (b) yeast (c) turmeric powder (d) a mirror
  17. 17.🧺 Three of these are needed for the shadow clock. Which one is NOT needed? (a) a magnet (b) a clock to check (c) a sunny open place (d) chalk to mark shadows
  18. 18.⚖️ Fair test — how does the shadow of a stick change through the day? True or false: the same spot is kept the same. (a) False (b) True
  19. 19.🌞 When is a stick’s shadow the shortest? (a) at night (b) late evening (c) early morning (d) around noon
  20. 20.🛟 While watching shadows outdoors, what must you never do? (a) look straight at the Sun (b) mark with chalk (c) wear a cap (d) sit in the shade
  21. 21.🧺 Three of these are needed for the shadow clock. Which one is NOT needed? (a) a straight stick (b) a sunny open place (c) a mirror (d) chalk to mark shadows
  22. 22.🔮 Predict: the Sun is low in the evening sky. The stick’s shadow is ___. (a) long (b) missing (c) round (d) short
  23. 23.🧺 Which of these is needed for the shadow clock? (a) a magnet (b) a balloon (c) yeast (d) a straight stick
  24. 24.🔦 Which of these is translucent? (a) tissue paper (b) a brick (c) air (d) a wooden board
  25. 25.⚖️ Fair test — how does the shadow of a stick change through the day? What do we do with “the same stick”? (a) we measure it (b) we change it (c) we keep it the same
  26. 26.🔍 Which is the odd one out? (a) your hand (b) a book (c) air (d) a wooden board
  27. 27.True or false: tissue paper is translucent. (a) False (b) True
  28. 28.🧺 Which of these is needed for the shadow clock? (a) turmeric powder (b) a clock to check (c) a mirror (d) a balloon
  29. 29.⚖️ 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
  30. 30.🧺 Three of these are needed for the shadow clock. Which one is NOT needed? (a) a straight stick (b) a balloon (c) a sunny open place (d) chalk to mark shadows
  31. 31.⚖️ 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
  32. 32.🧺 Which of these is needed for the shadow clock? (a) yeast (b) a mirror (c) a battery cell (d) a sunny open place
  33. 33.🔍 Which is the odd one out? (a) your hand (b) frosted glass (c) tissue paper (d) oily paper
  34. 34.⚖️ 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 measure it (c) we change it
  35. 35.🔍 Which is the odd one out? (a) a book (b) a wooden board (c) clear plastic film (d) your hand
  36. 36.🧺 Do we need a sunny open place for the shadow clock? (a) needed (b) not needed
  37. 37.⚖️ Fair test — how does the shadow of a stick change through the day? True or false: shadow length is the one thing we change. (a) True (b) False
  38. 38.🔦 Is a wooden board opaque, translucent or transparent? (a) translucent (b) opaque (c) transparent
  39. 39.True or false: a straight stick is needed for the shadow clock. (a) True (b) False
  40. 40.True or false: a balloon is needed for the shadow clock. (a) False (b) True

Answer key

  1. False
  2. True
  3. a cap or hat
  4. bigger
  5. not needed
  6. True
  7. False
  8. True
  9. opaque
  10. we measure it
  11. False
  12. True
  13. False
  14. False
  15. not needed
  16. chalk to mark shadows
  17. a magnet
  18. True
  19. around noon
  20. look straight at the Sun
  21. a mirror
  22. long
  23. a straight stick
  24. tissue paper
  25. we keep it the same
  26. air
  27. True
  28. a clock to check
  29. True
  30. a balloon
  31. False
  32. a sunny open place
  33. your hand
  34. we keep it the same
  35. clear plastic film
  36. needed
  37. False
  38. opaque
  39. True
  40. False

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