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Shadow and Sundial Experiment Worksheet

Science experiments lesson 27: Shadows and a sundial · Set 716 · 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.

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  1. 1.🔍 Which is the odd one out? (a) frosted glass (b) clean water (c) butter paper (d) tissue paper
  2. 2.🛟 While watching shadows outdoors, what must you never do? (a) wear a cap (b) sit in the shade (c) mark with chalk (d) look straight at the Sun
  3. 3.🛟 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
  4. 4.🔦 Which of these is opaque? (a) frosted glass (b) tissue paper (c) clear glass (d) your hand
  5. 5.🧺 Three of these are needed for the shadow clock. Which one is NOT needed? (a) a balloon (b) a sunny open place (c) chalk to mark shadows (d) a clock to check
  6. 6.🔍 Which is the odd one out? (a) a brick (b) a book (c) oily paper (d) a steel plate
  7. 7.⚖️ 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
  8. 8.🧺 Three of these are needed for the shadow clock. Which one is NOT needed? (a) a clock to check (b) a sunny open place (c) turmeric powder (d) a straight stick
  9. 9.True or false: a battery cell is needed for the shadow clock. (a) True (b) False
  10. 10.🔦 Is your hand opaque, translucent or transparent? (a) opaque (b) translucent (c) transparent
  11. 11.⚖️ Fair test — how does the shadow of a stick change through the day? True or false: the same spot is the one thing we change. (a) False (b) True
  12. 12.🧺 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 clock to check (d) a mirror
  13. 13.🧺 Do we need a battery cell for the shadow clock? (a) not needed (b) needed
  14. 14.🔍 Which is the odd one out? (a) tissue paper (b) a book (c) butter paper (d) frosted glass
  15. 15.True or false: a straight stick is needed for the shadow clock. (a) False (b) True
  16. 16.⚖️ 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 keep it the same (c) we measure it
  17. 17.🕰️ What is a sundial used for? (a) telling the time (b) weighing things (c) making rainbows (d) measuring rain
  18. 18.True or false: clear plastic film is transparent. (a) False (b) True
  19. 19.🔮 Predict: on a fully cloudy day, the sundial ___. (a) does not work well (b) shows two times (c) runs faster (d) works better
  20. 20.🧺 Which of these is needed for the shadow clock? (a) a straight stick (b) a balloon (c) yeast (d) a magnet
  21. 21.True or false: a brick is opaque. (a) True (b) False
  22. 22.⚖️ 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 keep it the same (c) we measure it
  23. 23.True or false: a magnet is needed for the shadow clock. (a) True (b) False
  24. 24.🔍 Which is the odd one out? (a) a steel plate (b) clear glass (c) clean water (d) air
  25. 25.🌍 Why does the stick’s shadow move during the day? (a) the stick walks (b) the stick grows (c) Earth keeps spinning (d) the ground slides
  26. 26.True or false: clear glass is transparent. (a) False (b) True
  27. 27.🧺 Which of these is needed for the shadow clock? (a) a balloon (b) yeast (c) a sunny open place (d) a mirror
  28. 28.True or false: a straight stick is not needed for the shadow clock. (a) True (b) False
  29. 29.🔮 Predict: you move a torch closer to your hand. The shadow on the wall gets ___. (a) brighter (b) smaller (c) coloured (d) bigger
  30. 30.⚖️ 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
  31. 31.🧺 Do we need a mirror for the shadow clock? (a) not needed (b) needed
  32. 32.🧺 Three of these are needed for the shadow clock. Which one is NOT needed? (a) a clock to check (b) a magnet (c) a sunny open place (d) a straight stick
  33. 33.🧺 Three of these are needed for the shadow clock. Which one is NOT needed? (a) yeast (b) a clock to check (c) chalk to mark shadows (d) a straight stick
  34. 34.True or false: a sunny open place is needed for the shadow clock. (a) True (b) False
  35. 35.🧺 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
  36. 36.🧺 Do we need yeast for the shadow clock? (a) needed (b) not needed
  37. 37.🔦 Which of these is opaque? (a) butter paper (b) clear plastic film (c) frosted glass (d) a book
  38. 38.True or false: tissue paper is opaque. (a) False (b) True
  39. 39.True or false: a brick is transparent. (a) True (b) False
  40. 40.🔦 Which of these is translucent? (a) clear plastic film (b) a brick (c) clear glass (d) oily paper

Answer key

  1. clean water
  2. look straight at the Sun
  3. a cap or hat
  4. your hand
  5. a balloon
  6. oily paper
  7. True
  8. turmeric powder
  9. False
  10. opaque
  11. False
  12. a mirror
  13. not needed
  14. a book
  15. True
  16. we measure it
  17. telling the time
  18. True
  19. does not work well
  20. a straight stick
  21. True
  22. we change it
  23. False
  24. a steel plate
  25. Earth keeps spinning
  26. True
  27. a sunny open place
  28. False
  29. bigger
  30. True
  31. not needed
  32. a magnet
  33. yeast
  34. True
  35. a battery cell
  36. not needed
  37. a book
  38. False
  39. False
  40. oily paper

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