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Shadow and Sundial Experiment Worksheet

Science experiments lesson 27: Shadows and a sundial · Set 950 · 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) True (b) False
  2. 2.🧺 Three of these are needed for the shadow clock. Which one is NOT needed? (a) a clock to check (b) turmeric powder (c) a sunny open place (d) a straight stick
  3. 3.⚖️ Fair test — how does the shadow of a stick change through the day? Which of these is the one thing we change? (a) shadow length (b) the stick kept upright (c) the same stick (d) the time of day
  4. 4.🌞 When is a stick’s shadow the shortest? (a) around noon (b) late evening (c) early morning (d) at night
  5. 5.🔍 Which is the odd one out? (a) oily paper (b) a brick (c) butter paper (d) frosted glass
  6. 6.True or false: clear plastic film is transparent. (a) False (b) True
  7. 7.🔮 Predict: on a fully cloudy day, the sundial ___. (a) runs faster (b) shows two times (c) does not work well (d) works better
  8. 8.🔦 Which of these is transparent? (a) clear glass (b) a steel plate (c) butter paper (d) a wooden board
  9. 9.🧺 Do we need a magnet for the shadow clock? (a) needed (b) not needed
  10. 10.🔦 Which of these is opaque? (a) air (b) a brick (c) clean water (d) butter paper
  11. 11.🔮 Predict: you move a torch closer to your hand. The shadow on the wall gets ___. (a) smaller (b) bigger (c) brighter (d) coloured
  12. 12.🌅 In the morning the Sun is in the east. Which way does a shadow point? (a) up (b) east (c) north (d) west
  13. 13.True or false: a wooden board is transparent. (a) False (b) True
  14. 14.⚖️ 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
  15. 15.🔍 Which is the odd one out? (a) clear plastic film (b) tissue paper (c) clear glass (d) air
  16. 16.⚖️ Fair test — how does the shadow of a stick change through the day? Which of these is what we measure? (a) the same stick (b) shadow length (c) the stick kept upright (d) the time of day
  17. 17.True or false: turmeric powder is not needed for the shadow clock. (a) False (b) True
  18. 18.True or false: clear glass is translucent. (a) True (b) False
  19. 19.🔦 Is a book opaque, translucent or transparent? (a) translucent (b) transparent (c) opaque
  20. 20.⚖️ Fair test — how does the shadow of a stick change through the day? Which of these is kept the same? (a) the time of day (b) shadow length (c) the same stick
  21. 21.🧺 Which of these is not needed for the shadow clock? (a) chalk to mark shadows (b) a sunny open place (c) a magnet (d) a straight stick
  22. 22.🔍 Which is the odd one out? (a) air (b) a wooden board (c) a steel plate (d) your hand
  23. 23.⚖️ 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
  24. 24.🛟 What should you wear for a long time in the hot sun? (a) a woollen sweater (b) a cap or hat (c) nothing on your head (d) a raincoat
  25. 25.🔍 Which is the odd one out? (a) tissue paper (b) oily paper (c) frosted glass (d) clear plastic film
  26. 26.🌍 Why does the stick’s shadow move during the day? (a) Earth keeps spinning (b) the stick grows (c) the ground slides (d) the stick walks
  27. 27.🔮 Predict: the Sun is low in the evening sky. The stick’s shadow is ___. (a) missing (b) long (c) short (d) round
  28. 28.True or false: a straight stick is needed for the shadow clock. (a) True (b) False
  29. 29.⚖️ 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
  30. 30.🔦 Is tissue paper opaque, translucent or transparent? (a) translucent (b) transparent (c) opaque
  31. 31.🔦 Which of these is transparent? (a) a steel plate (b) clear plastic film (c) tissue paper (d) a brick
  32. 32.🧺 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 balloon
  33. 33.🧺 Do we need a battery cell for the shadow clock? (a) not needed (b) needed
  34. 34.🔦 Which of these is translucent? (a) clear plastic film (b) butter paper (c) a brick (d) your hand
  35. 35.🧺 Do we need a clock to check for the shadow clock? (a) needed (b) not needed
  36. 36.🧺 Do we need a sunny open place for the shadow clock? (a) not needed (b) needed
  37. 37.🔦 Is butter paper opaque, translucent or transparent? (a) opaque (b) translucent (c) transparent
  38. 38.🕰️ What is a sundial used for? (a) telling the time (b) measuring rain (c) making rainbows (d) weighing things
  39. 39.True or false: butter paper is transparent. (a) False (b) True
  40. 40.🔦 Which of these is opaque? (a) oily paper (b) a book (c) frosted glass (d) clean water

Answer key

  1. False
  2. turmeric powder
  3. the time of day
  4. around noon
  5. a brick
  6. True
  7. does not work well
  8. clear glass
  9. not needed
  10. a brick
  11. bigger
  12. west
  13. False
  14. False
  15. tissue paper
  16. shadow length
  17. True
  18. False
  19. opaque
  20. the same stick
  21. a magnet
  22. air
  23. True
  24. a cap or hat
  25. clear plastic film
  26. Earth keeps spinning
  27. long
  28. True
  29. we measure it
  30. translucent
  31. clear plastic film
  32. a balloon
  33. not needed
  34. butter paper
  35. needed
  36. needed
  37. translucent
  38. telling the time
  39. False
  40. a book

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