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Shadow and Sundial Experiment Worksheet

Science experiments lesson 27: Shadows and a sundial · Set 634 · 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.⚖️ 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 time of day (c) the stick kept upright
  2. 2.🔦 Is clean water opaque, translucent or transparent? (a) opaque (b) transparent (c) translucent
  3. 3.🔍 Which is the odd one out? (a) butter paper (b) oily paper (c) a wooden board (d) tissue paper
  4. 4.🧺 Do we need a straight stick for the shadow clock? (a) needed (b) not needed
  5. 5.🧺 Three of these are needed for the shadow clock. Which one is NOT needed? (a) a sunny open place (b) a magnet (c) chalk to mark shadows (d) a straight stick
  6. 6.🌞 When is a stick’s shadow the shortest? (a) at night (b) around noon (c) late evening (d) early morning
  7. 7.True or false: a battery cell is not needed for the shadow clock. (a) False (b) True
  8. 8.True or false: a mirror is not needed for the shadow clock. (a) True (b) False
  9. 9.🔦 Which of these is opaque? (a) frosted glass (b) air (c) oily paper (d) a steel plate
  10. 10.🔦 Is clear glass opaque, translucent or transparent? (a) opaque (b) transparent (c) translucent
  11. 11.🌍 Why does the stick’s shadow move during the day? (a) the stick grows (b) Earth keeps spinning (c) the stick walks (d) the ground slides
  12. 12.🔍 Which is the odd one out? (a) butter paper (b) clear glass (c) clear plastic film (d) clean water
  13. 13.🧺 Which of these is not needed for the shadow clock? (a) a clock to check (b) a magnet (c) chalk to mark shadows (d) a straight stick
  14. 14.⚖️ Fair test — how does the shadow of a stick change through the day? Which of these is kept the same? (a) the same spot (b) shadow length (c) the time of day
  15. 15.True or false: clear glass is transparent. (a) True (b) False
  16. 16.⚖️ Fair test — how does the shadow of a stick change through the day? True or false: the same stick is kept the same. (a) False (b) True
  17. 17.⚖️ Fair test — how does the shadow of a stick change through the day? What do we do with “shadow length”? (a) we measure it (b) we keep it the same (c) we change it
  18. 18.🛟 What should you wear for a long time in the hot sun? (a) nothing on your head (b) a cap or hat (c) a raincoat (d) a woollen sweater
  19. 19.🔦 Which of these is transparent? (a) oily paper (b) your hand (c) butter paper (d) air
  20. 20.⚖️ Fair test — how does the shadow of a stick change through the day? True or false: the stick kept upright is what we measure. (a) True (b) False
  21. 21.🔮 Predict: you move a torch closer to your hand. The shadow on the wall gets ___. (a) smaller (b) brighter (c) bigger (d) coloured
  22. 22.⚖️ 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 time of day (c) the same stick
  23. 23.True or false: a sunny open place is needed for the shadow clock. (a) True (b) False
  24. 24.🔦 Which of these is transparent? (a) clear plastic film (b) a wooden board (c) butter paper (d) a brick
  25. 25.True or false: frosted glass is translucent. (a) False (b) True
  26. 26.🔮 Predict: the Sun is low in the evening sky. The stick’s shadow is ___. (a) round (b) short (c) long (d) missing
  27. 27.🧺 Which of these is needed for the shadow clock? (a) a balloon (b) a magnet (c) a straight stick (d) a battery cell
  28. 28.🔍 Which is the odd one out? (a) clear plastic film (b) oily paper (c) frosted glass (d) tissue paper
  29. 29.⚖️ Fair test — how does the shadow of a stick change through the day? Which of these is the one thing we change? (a) the time of day (b) shadow length (c) the stick kept upright (d) the same stick
  30. 30.True or false: clean water is opaque. (a) True (b) False
  31. 31.True or false: chalk to mark shadows is not needed for the shadow clock. (a) False (b) True
  32. 32.🔦 Is a book opaque, translucent or transparent? (a) translucent (b) transparent (c) opaque
  33. 33.True or false: a battery cell is needed for the shadow clock. (a) False (b) True
  34. 34.🔦 Is your hand opaque, translucent or transparent? (a) translucent (b) opaque (c) transparent
  35. 35.🔦 Is a steel plate opaque, translucent or transparent? (a) transparent (b) translucent (c) opaque
  36. 36.🧺 Three of these are needed for the shadow clock. Which one is NOT needed? (a) a battery cell (b) a straight stick (c) chalk to mark shadows (d) a sunny open place
  37. 37.🧺 Three of these are needed for the shadow clock. Which one is NOT needed? (a) a straight stick (b) a clock to check (c) yeast (d) a sunny open place
  38. 38.🔦 Which of these is translucent? (a) a steel plate (b) oily paper (c) a brick (d) a book
  39. 39.🧺 Do we need a battery cell for the shadow clock? (a) not needed (b) needed
  40. 40.True or false: tissue paper is translucent. (a) False (b) True

Answer key

  1. the stick kept upright
  2. transparent
  3. a wooden board
  4. needed
  5. a magnet
  6. around noon
  7. True
  8. True
  9. a steel plate
  10. transparent
  11. Earth keeps spinning
  12. butter paper
  13. a magnet
  14. the same spot
  15. True
  16. True
  17. we measure it
  18. a cap or hat
  19. air
  20. False
  21. bigger
  22. the same stick
  23. True
  24. clear plastic film
  25. True
  26. long
  27. a straight stick
  28. clear plastic film
  29. the time of day
  30. False
  31. False
  32. opaque
  33. False
  34. opaque
  35. opaque
  36. a battery cell
  37. yeast
  38. oily paper
  39. not needed
  40. True

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