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Shadow and Sundial Experiment Worksheet

Science experiments lesson 27: Shadows and a sundial · Set 164 · 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.🔮 Predict: on a fully cloudy day, the sundial ___. (a) shows two times (b) runs faster (c) does not work well (d) works better
  2. 2.🔦 Which of these is transparent? (a) frosted glass (b) a book (c) butter paper (d) clean water
  3. 3.🧺 Three of these are needed for the shadow clock. Which one is NOT needed? (a) yeast (b) a straight stick (c) a clock to check (d) a sunny open place
  4. 4.True or false: a battery cell is not needed for the shadow clock. (a) True (b) False
  5. 5.True or false: a magnet is needed for the shadow clock. (a) True (b) False
  6. 6.⚖️ Fair test — how does the shadow of a stick change through the day? Which of these is what we measure? (a) the time of day (b) the stick kept upright (c) the same spot (d) shadow length
  7. 7.True or false: a book is translucent. (a) True (b) False
  8. 8.⚖️ Fair test — how does the shadow of a stick change through the day? Which of these is the one thing we change? (a) the same stick (b) the time of day (c) the stick kept upright (d) the same spot
  9. 9.🛟 While watching shadows outdoors, what must you never do? (a) wear a cap (b) look straight at the Sun (c) mark with chalk (d) sit in the shade
  10. 10.🧺 Which of these is needed for the shadow clock? (a) a mirror (b) chalk to mark shadows (c) a magnet (d) a balloon
  11. 11.🌅 In the morning the Sun is in the east. Which way does a shadow point? (a) up (b) east (c) west (d) north
  12. 12.🌞 When is a stick’s shadow the shortest? (a) late evening (b) around noon (c) early morning (d) at night
  13. 13.True or false: butter paper is translucent. (a) False (b) True
  14. 14.True or false: a battery cell is needed for the shadow clock. (a) True (b) False
  15. 15.🔦 Is tissue paper opaque, translucent or transparent? (a) transparent (b) translucent (c) opaque
  16. 16.⚖️ 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
  17. 17.🧺 Do we need a magnet for the shadow clock? (a) needed (b) not needed
  18. 18.🧺 Three of these are needed for the shadow clock. Which one is NOT needed? (a) a sunny open place (b) a balloon (c) a straight stick (d) a clock to check
  19. 19.🛟 What should you wear for a long time in the hot sun? (a) nothing on your head (b) a woollen sweater (c) a raincoat (d) a cap or hat
  20. 20.⚖️ 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) False (b) True
  21. 21.True or false: your hand is transparent. (a) False (b) True
  22. 22.🔮 Predict: you move a torch closer to your hand. The shadow on the wall gets ___. (a) brighter (b) coloured (c) smaller (d) bigger
  23. 23.🔍 Which is the odd one out? (a) a wooden board (b) a book (c) clean water (d) a steel plate
  24. 24.🔦 Is your hand opaque, translucent or transparent? (a) opaque (b) transparent (c) translucent
  25. 25.🔦 Which of these is translucent? (a) clear plastic film (b) clear glass (c) frosted glass (d) air
  26. 26.🔦 Which of these is opaque? (a) a brick (b) clean water (c) oily paper (d) tissue paper
  27. 27.🔦 Which of these is transparent? (a) frosted glass (b) butter paper (c) air (d) tissue paper
  28. 28.🌍 Why does the stick’s shadow move during the day? (a) the stick grows (b) the ground slides (c) Earth keeps spinning (d) the stick walks
  29. 29.🔦 Which of these is opaque? (a) clear plastic film (b) clear glass (c) clean water (d) a steel plate
  30. 30.🧺 Three of these are needed for the shadow clock. Which one is NOT needed? (a) a sunny open place (b) chalk to mark shadows (c) a mirror (d) a straight stick
  31. 31.⚖️ Fair test — how does the shadow of a stick change through the day? What do we do with “the stick kept upright”? (a) we change it (b) we measure it (c) we keep it the same
  32. 32.True or false: frosted glass is opaque. (a) True (b) False
  33. 33.🧺 Three of these are needed for the shadow clock. Which one is NOT needed? (a) a sunny open place (b) turmeric powder (c) a clock to check (d) chalk to mark shadows
  34. 34.🔦 Which of these is transparent? (a) clear plastic film (b) a wooden board (c) a book (d) oily paper
  35. 35.🧺 Which of these is not needed for the shadow clock? (a) a clock to check (b) a balloon (c) a sunny open place (d) a straight stick
  36. 36.🔦 Which of these is opaque? (a) frosted glass (b) clean water (c) clear glass (d) a wooden board
  37. 37.🔮 Predict: the Sun is low in the evening sky. The stick’s shadow is ___. (a) missing (b) short (c) long (d) round
  38. 38.🔍 Which is the odd one out? (a) butter paper (b) clear plastic film (c) clear glass (d) air
  39. 39.🔍 Which is the odd one out? (a) frosted glass (b) clean water (c) air (d) clear plastic film
  40. 40.True or false: clear plastic film is transparent. (a) False (b) True

Answer key

  1. does not work well
  2. clean water
  3. yeast
  4. True
  5. False
  6. shadow length
  7. False
  8. the time of day
  9. look straight at the Sun
  10. chalk to mark shadows
  11. west
  12. around noon
  13. True
  14. False
  15. translucent
  16. False
  17. not needed
  18. a balloon
  19. a cap or hat
  20. False
  21. False
  22. bigger
  23. clean water
  24. opaque
  25. frosted glass
  26. a brick
  27. air
  28. Earth keeps spinning
  29. a steel plate
  30. a mirror
  31. we keep it the same
  32. False
  33. turmeric powder
  34. clear plastic film
  35. a balloon
  36. a wooden board
  37. long
  38. butter paper
  39. frosted glass
  40. True

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