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Shadow and Sundial Experiment Worksheet

Science experiments lesson 27: Shadows and a sundial · Set 288 · 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 battery cell is not needed for the shadow clock. (a) True (b) False
  2. 2.🔦 Which of these is translucent? (a) tissue paper (b) a steel plate (c) a book (d) your hand
  3. 3.🧺 Do we need a battery cell for the shadow clock? (a) not needed (b) needed
  4. 4.⚖️ Fair test — how does the shadow of a stick change through the day? What do we do with “the same spot”? (a) we change it (b) we measure it (c) we keep it the same
  5. 5.🧺 Which of these is needed for the shadow clock? (a) yeast (b) chalk to mark shadows (c) a battery cell (d) a magnet
  6. 6.⚖️ 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
  7. 7.True or false: a sunny open place is needed for the shadow clock. (a) True (b) False
  8. 8.🌞 When is a stick’s shadow the shortest? (a) around noon (b) at night (c) late evening (d) early morning
  9. 9.True or false: yeast is not needed for the shadow clock. (a) False (b) True
  10. 10.True or false: a mirror is not needed for the shadow clock. (a) True (b) False
  11. 11.🧺 Which of these is needed for the shadow clock? (a) turmeric powder (b) a straight stick (c) a balloon (d) yeast
  12. 12.🔦 Is butter paper opaque, translucent or transparent? (a) translucent (b) transparent (c) opaque
  13. 13.🌅 In the morning the Sun is in the east. Which way does a shadow point? (a) up (b) west (c) north (d) east
  14. 14.🛟 While watching shadows outdoors, what must you never do? (a) look straight at the Sun (b) sit in the shade (c) wear a cap (d) mark with chalk
  15. 15.🧺 Three of these are needed for the shadow clock. Which one is NOT needed? (a) a straight stick (b) a clock to check (c) chalk to mark shadows (d) a battery cell
  16. 16.🔍 Which is the odd one out? (a) a brick (b) a steel plate (c) a wooden board (d) oily paper
  17. 17.🔮 Predict: the Sun is low in the evening sky. The stick’s shadow is ___. (a) short (b) round (c) long (d) missing
  18. 18.⚖️ 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
  19. 19.🔦 Which of these is opaque? (a) clear glass (b) oily paper (c) clean water (d) a steel plate
  20. 20.🌍 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
  21. 21.🧺 Do we need a straight stick for the shadow clock? (a) not needed (b) needed
  22. 22.⚖️ Fair test — how does the shadow of a stick change through the day? What do we do with “the same stick”? (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) False (b) True
  24. 24.True or false: a steel plate is opaque. (a) True (b) False
  25. 25.True or false: a mirror is needed for the shadow clock. (a) False (b) True
  26. 26.🔦 Is your hand opaque, translucent or transparent? (a) opaque (b) translucent (c) transparent
  27. 27.🛟 What should you wear for a long time in the hot sun? (a) a woollen sweater (b) a raincoat (c) a cap or hat (d) nothing on your head
  28. 28.🧺 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) chalk to mark shadows (d) a mirror
  29. 29.🔮 Predict: on a fully cloudy day, the sundial ___. (a) runs faster (b) works better (c) does not work well (d) shows two times
  30. 30.🔦 Is oily paper opaque, translucent or transparent? (a) opaque (b) translucent (c) transparent
  31. 31.⚖️ 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 change it (c) we keep it the same
  32. 32.🔦 Which of these is opaque? (a) air (b) frosted glass (c) a wooden board (d) butter paper
  33. 33.True or false: clean water is transparent. (a) True (b) False
  34. 34.⚖️ Fair test — how does the shadow of a stick change through the day? True or false: the same spot is kept the same. (a) False (b) True
  35. 35.True or false: a sunny open place is not needed for the shadow clock. (a) True (b) False
  36. 36.⚖️ Fair test — how does the shadow of a stick change through the day? True or false: the time of day is kept the same. (a) True (b) False
  37. 37.True or false: yeast is needed for the shadow clock. (a) False (b) True
  38. 38.🧺 Do we need yeast for the shadow clock? (a) needed (b) not needed
  39. 39.🔦 Is frosted glass opaque, translucent or transparent? (a) translucent (b) transparent (c) opaque
  40. 40.🧺 Do we need a mirror for the shadow clock? (a) needed (b) not needed

Answer key

  1. True
  2. tissue paper
  3. not needed
  4. we keep it the same
  5. chalk to mark shadows
  6. False
  7. True
  8. around noon
  9. True
  10. True
  11. a straight stick
  12. translucent
  13. west
  14. look straight at the Sun
  15. a battery cell
  16. oily paper
  17. long
  18. we change it
  19. a steel plate
  20. Earth keeps spinning
  21. needed
  22. we keep it the same
  23. False
  24. True
  25. False
  26. opaque
  27. a cap or hat
  28. a mirror
  29. does not work well
  30. translucent
  31. we measure it
  32. a wooden board
  33. True
  34. True
  35. False
  36. False
  37. False
  38. not needed
  39. translucent
  40. not needed

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