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Shadow and Sundial Experiment Worksheet

Science experiments lesson 27: Shadows and a sundial · Set 484 · 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: yeast is not needed for the shadow clock. (a) True (b) False
  2. 2.⚖️ 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 same spot (c) the stick kept upright (d) the time of day
  3. 3.🧺 Do we need turmeric powder for the shadow clock? (a) not needed (b) needed
  4. 4.⚖️ Fair test — how does the shadow of a stick change through the day? True or false: shadow length is what we measure. (a) False (b) True
  5. 5.🔍 Which is the odd one out? (a) clear glass (b) clean water (c) air (d) a book
  6. 6.🔦 Is a brick opaque, translucent or transparent? (a) transparent (b) translucent (c) opaque
  7. 7.🧺 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) a magnet (d) chalk to mark shadows
  8. 8.True or false: a mirror is needed for the shadow clock. (a) False (b) True
  9. 9.🛟 What should you wear for a long time in the hot sun? (a) a cap or hat (b) nothing on your head (c) a raincoat (d) a woollen sweater
  10. 10.🧺 Do we need a battery cell for the shadow clock? (a) not needed (b) needed
  11. 11.🧺 Do we need a clock to check for the shadow clock? (a) not needed (b) needed
  12. 12.🔦 Which of these is opaque? (a) a book (b) clear glass (c) butter paper (d) oily paper
  13. 13.🔍 Which is the odd one out? (a) clear plastic film (b) clean water (c) air (d) butter paper
  14. 14.🔦 Is a book opaque, translucent or transparent? (a) transparent (b) opaque (c) translucent
  15. 15.🧺 Do we need a magnet for the shadow clock? (a) needed (b) not needed
  16. 16.🔦 Is butter paper opaque, translucent or transparent? (a) opaque (b) translucent (c) transparent
  17. 17.⚖️ 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
  18. 18.⚖️ 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) shadow length (c) the same stick (d) the stick kept upright
  19. 19.🧺 Do we need a straight stick for the shadow clock? (a) not needed (b) needed
  20. 20.🔦 Which of these is opaque? (a) tissue paper (b) butter paper (c) a brick (d) clear plastic film
  21. 21.⚖️ Fair test — how does the shadow of a stick change through the day? Which of these is kept the same? (a) shadow length (b) the same stick (c) the time of day
  22. 22.True or false: yeast is needed for the shadow clock. (a) True (b) False
  23. 23.🔮 Predict: you move a torch closer to your hand. The shadow on the wall gets ___. (a) brighter (b) smaller (c) bigger (d) coloured
  24. 24.True or false: butter paper is transparent. (a) True (b) False
  25. 25.🧺 Which of these is needed for the shadow clock? (a) turmeric powder (b) a magnet (c) a straight stick (d) a balloon
  26. 26.True or false: a wooden board is transparent. (a) True (b) False
  27. 27.True or false: oily paper is transparent. (a) False (b) True
  28. 28.🧺 Do we need a mirror for the shadow clock? (a) needed (b) not needed
  29. 29.True or false: air is opaque. (a) True (b) False
  30. 30.🧺 Which of these is not needed for the shadow clock? (a) chalk to mark shadows (b) a balloon (c) a sunny open place (d) a straight stick
  31. 31.🧺 Which of these is not needed for the shadow clock? (a) a straight stick (b) a clock to check (c) a sunny open place (d) a battery cell
  32. 32.True or false: a straight stick is not needed for the shadow clock. (a) False (b) True
  33. 33.⚖️ 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
  34. 34.🧺 Three of these are needed for the shadow clock. Which one is NOT needed? (a) chalk to mark shadows (b) a battery cell (c) a straight stick (d) a sunny open place
  35. 35.🔮 Predict: the Sun is low in the evening sky. The stick’s shadow is ___. (a) missing (b) short (c) round (d) long
  36. 36.🌍 Why does the stick’s shadow move during the day? (a) Earth keeps spinning (b) the ground slides (c) the stick walks (d) the stick grows
  37. 37.🌞 When is a stick’s shadow the shortest? (a) early morning (b) late evening (c) at night (d) around noon
  38. 38.🔮 Predict: on a fully cloudy day, the sundial ___. (a) works better (b) shows two times (c) runs faster (d) does not work well
  39. 39.⚖️ 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
  40. 40.🕰️ What is a sundial used for? (a) making rainbows (b) telling the time (c) weighing things (d) measuring rain

Answer key

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

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