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Shadow and Sundial Experiment Worksheet

Science experiments lesson 27: Shadows and a sundial · Set 226 · 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) a straight stick (c) a sunny open place (d) a magnet
  2. 2.True or false: turmeric powder is needed for the shadow clock. (a) True (b) False
  3. 3.🧺 Three of these are needed for the shadow clock. Which one is NOT needed? (a) a balloon (b) a straight stick (c) a clock to check (d) chalk to mark shadows
  4. 4.🌞 When is a stick’s shadow the shortest? (a) early morning (b) late evening (c) at night (d) around noon
  5. 5.🧺 Do we need a sunny open place for the shadow clock? (a) not needed (b) needed
  6. 6.⚖️ 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
  7. 7.⚖️ Fair test — how does the shadow of a stick change through the day? What do we do with “the same stick”? (a) we change it (b) we measure it (c) we keep it the same
  8. 8.⚖️ 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 change it (c) we measure it
  9. 9.True or false: butter paper is translucent. (a) True (b) False
  10. 10.🔦 Is air opaque, translucent or transparent? (a) translucent (b) opaque (c) transparent
  11. 11.🧺 Do we need chalk to mark shadows for the shadow clock? (a) needed (b) not needed
  12. 12.True or false: a sunny open place is needed for the shadow clock. (a) False (b) True
  13. 13.🧺 Three of these are needed for the shadow clock. Which one is NOT needed? (a) yeast (b) a sunny open place (c) chalk to mark shadows (d) a clock to check
  14. 14.True or false: a magnet is not needed for the shadow clock. (a) False (b) True
  15. 15.True or false: a clock to check is not needed for the shadow clock. (a) True (b) False
  16. 16.True or false: your hand is translucent. (a) False (b) True
  17. 17.🔦 Which of these is opaque? (a) air (b) frosted glass (c) clean water (d) a wooden board
  18. 18.🔦 Which of these is opaque? (a) tissue paper (b) a steel plate (c) clear plastic film (d) oily paper
  19. 19.🔮 Predict: the Sun is low in the evening sky. The stick’s shadow is ___. (a) round (b) missing (c) short (d) long
  20. 20.🧺 Which of these is needed for the shadow clock? (a) yeast (b) a mirror (c) a magnet (d) a clock to check
  21. 21.⚖️ 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 measure it (c) we keep it the same
  22. 22.🔦 Is oily paper opaque, translucent or transparent? (a) transparent (b) opaque (c) translucent
  23. 23.True or false: a brick is transparent. (a) True (b) False
  24. 24.🔮 Predict: you move a torch closer to your hand. The shadow on the wall gets ___. (a) smaller (b) coloured (c) bigger (d) brighter
  25. 25.⚖️ Fair test — how does the shadow of a stick change through the day? True or false: the same spot is kept the same. (a) True (b) False
  26. 26.🧺 Which of these is not needed for the shadow clock? (a) a sunny open place (b) chalk to mark shadows (c) a clock to check (d) a battery cell
  27. 27.True or false: oily paper is translucent. (a) True (b) False
  28. 28.🔦 Which of these is translucent? (a) frosted glass (b) clear plastic film (c) a brick (d) air
  29. 29.🛟 What should you wear for a long time in the hot sun? (a) a raincoat (b) a woollen sweater (c) a cap or hat (d) nothing on your head
  30. 30.True or false: a clock to check is needed for the shadow clock. (a) True (b) False
  31. 31.🔦 Is frosted glass opaque, translucent or transparent? (a) transparent (b) translucent (c) opaque
  32. 32.⚖️ Fair test — how does the shadow of a stick change through the day? Which of these is what we measure? (a) the same spot (b) the same stick (c) shadow length (d) the stick kept upright
  33. 33.🔦 Is tissue paper opaque, translucent or transparent? (a) transparent (b) opaque (c) translucent
  34. 34.True or false: a mirror is needed for the shadow clock. (a) False (b) True
  35. 35.True or false: oily paper is opaque. (a) True (b) False
  36. 36.🔦 Which of these is opaque? (a) clear glass (b) butter paper (c) your hand (d) tissue paper
  37. 37.🔦 Which of these is opaque? (a) frosted glass (b) tissue paper (c) a brick (d) butter paper
  38. 38.🧺 Three of these are needed for the shadow clock. Which one is NOT needed? (a) chalk to mark shadows (b) turmeric powder (c) a clock to check (d) a sunny open place
  39. 39.🔮 Predict: on a fully cloudy day, the sundial ___. (a) works better (b) runs faster (c) does not work well (d) shows two times
  40. 40.🧺 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 straight stick (d) a battery cell

Answer key

  1. a magnet
  2. False
  3. a balloon
  4. around noon
  5. needed
  6. False
  7. we keep it the same
  8. we keep it the same
  9. True
  10. transparent
  11. needed
  12. True
  13. yeast
  14. True
  15. False
  16. False
  17. a wooden board
  18. a steel plate
  19. long
  20. a clock to check
  21. we measure it
  22. translucent
  23. False
  24. bigger
  25. True
  26. a battery cell
  27. True
  28. frosted glass
  29. a cap or hat
  30. True
  31. translucent
  32. shadow length
  33. translucent
  34. False
  35. False
  36. your hand
  37. a brick
  38. turmeric powder
  39. does not work well
  40. a battery cell

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