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Shadow and Sundial Experiment Worksheet

Science experiments lesson 27: Shadows and a sundial · Set 60 · 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.🧺 Three of these are needed for the shadow clock. Which one is NOT needed? (a) a clock to check (b) chalk to mark shadows (c) a mirror (d) a sunny open place
  2. 2.True or false: a wooden board is opaque. (a) True (b) False
  3. 3.True or false: butter paper is translucent. (a) False (b) True
  4. 4.🧺 Three of these are needed for the shadow clock. Which one is NOT needed? (a) a straight stick (b) a sunny open place (c) yeast (d) chalk to mark shadows
  5. 5.⚖️ 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
  6. 6.🧺 Do we need chalk to mark shadows for the shadow clock? (a) not needed (b) needed
  7. 7.🛟 While watching shadows outdoors, what must you never do? (a) look straight at the Sun (b) sit in the shade (c) wear a cap (d) mark with chalk
  8. 8.🔮 Predict: you move a torch closer to your hand. The shadow on the wall gets ___. (a) coloured (b) bigger (c) smaller (d) brighter
  9. 9.True or false: yeast is needed for the shadow clock. (a) False (b) True
  10. 10.🧺 Which of these is not needed for the shadow clock? (a) a mirror (b) a straight stick (c) a sunny open place (d) chalk to mark shadows
  11. 11.⚖️ Fair test — how does the shadow of a stick change through the day? What do we do with “the time of day”? (a) we change it (b) we measure it (c) we keep it the same
  12. 12.True or false: tissue paper is opaque. (a) False (b) True
  13. 13.🛟 What should you wear for a long time in the hot sun? (a) a woollen sweater (b) a raincoat (c) a cap or hat (d) nothing on your head
  14. 14.🧺 Do we need a straight stick for the shadow clock? (a) needed (b) not needed
  15. 15.🔦 Which of these is opaque? (a) tissue paper (b) a book (c) clean water (d) butter paper
  16. 16.🧺 Do we need a mirror for the shadow clock? (a) needed (b) not needed
  17. 17.🔮 Predict: the Sun is low in the evening sky. The stick’s shadow is ___. (a) short (b) missing (c) long (d) round
  18. 18.🔦 Which of these is transparent? (a) a brick (b) frosted glass (c) clear glass (d) a book
  19. 19.True or false: a balloon is needed for the shadow clock. (a) True (b) False
  20. 20.🔍 Which is the odd one out? (a) frosted glass (b) a book (c) your hand (d) a wooden board
  21. 21.🧺 Three of these are needed for the shadow clock. Which one is NOT needed? (a) a battery cell (b) a straight stick (c) chalk to mark shadows (d) a sunny open place
  22. 22.🔍 Which is the odd one out? (a) a wooden board (b) a steel plate (c) your hand (d) clear glass
  23. 23.True or false: a clock to check is needed for the shadow clock. (a) False (b) True
  24. 24.🔦 Which of these is translucent? (a) clear glass (b) butter paper (c) a book (d) air
  25. 25.True or false: butter paper is opaque. (a) False (b) True
  26. 26.🧺 Three of these are needed for the shadow clock. Which one is NOT needed? (a) a sunny open place (b) a straight stick (c) a clock to check (d) a magnet
  27. 27.True or false: a magnet is needed for the shadow clock. (a) True (b) False
  28. 28.🧺 Which of these is needed for the shadow clock? (a) a balloon (b) turmeric powder (c) a magnet (d) a straight stick
  29. 29.🧺 Which of these is needed for the shadow clock? (a) chalk to mark shadows (b) a mirror (c) a battery cell (d) a magnet
  30. 30.🔦 Which of these is transparent? (a) a wooden board (b) tissue paper (c) clean water (d) frosted glass
  31. 31.⚖️ 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) True (b) False
  32. 32.🧺 Do we need a sunny open place for the shadow clock? (a) needed (b) not needed
  33. 33.🔦 Is a steel plate opaque, translucent or transparent? (a) opaque (b) transparent (c) translucent
  34. 34.🔦 Is a wooden board opaque, translucent or transparent? (a) transparent (b) translucent (c) opaque
  35. 35.🔮 Predict: on a fully cloudy day, the sundial ___. (a) works better (b) runs faster (c) does not work well (d) shows two times
  36. 36.🧺 Three of these are needed for the shadow clock. Which one is NOT needed? (a) a clock to check (b) chalk to mark shadows (c) a straight stick (d) a balloon
  37. 37.🔦 Is clean water opaque, translucent or transparent? (a) transparent (b) translucent (c) opaque
  38. 38.⚖️ 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 keep it the same (c) we measure it
  39. 39.🧺 Do we need a balloon for the shadow clock? (a) needed (b) not needed
  40. 40.⚖️ Fair test — how does the shadow of a stick change through the day? True or false: the same stick is kept the same. (a) False (b) True

Answer key

  1. a mirror
  2. True
  3. True
  4. yeast
  5. we keep it the same
  6. needed
  7. look straight at the Sun
  8. bigger
  9. False
  10. a mirror
  11. we change it
  12. False
  13. a cap or hat
  14. needed
  15. a book
  16. not needed
  17. long
  18. clear glass
  19. False
  20. frosted glass
  21. a battery cell
  22. clear glass
  23. True
  24. butter paper
  25. False
  26. a magnet
  27. False
  28. a straight stick
  29. chalk to mark shadows
  30. clean water
  31. True
  32. needed
  33. opaque
  34. opaque
  35. does not work well
  36. a balloon
  37. transparent
  38. we keep it the same
  39. not needed
  40. True

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