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Shadow and Sundial Experiment Worksheet

Science experiments lesson 27: Shadows and a sundial · Set 582 · 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? What do we do with “the time of day”? (a) we measure it (b) we keep it the same (c) we change it
  2. 2.🔍 Which is the odd one out? (a) your hand (b) a wooden board (c) clear glass (d) a steel plate
  3. 3.True or false: a straight stick is not needed for the shadow clock. (a) False (b) True
  4. 4.🛟 While watching shadows outdoors, what must you never do? (a) sit in the shade (b) wear a cap (c) look straight at the Sun (d) mark with chalk
  5. 5.⚖️ Fair test — how does the shadow of a stick change through the day? What do we do with “the same stick”? (a) we measure it (b) we change it (c) we keep it the same
  6. 6.🔦 Which of these is opaque? (a) a wooden board (b) air (c) clear plastic film (d) oily paper
  7. 7.⚖️ 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 change it (c) we measure it
  8. 8.🔦 Which of these is transparent? (a) a brick (b) clean water (c) a book (d) oily paper
  9. 9.🔮 Predict: the Sun is low in the evening sky. The stick’s shadow is ___. (a) round (b) long (c) short (d) missing
  10. 10.True or false: butter paper is transparent. (a) True (b) False
  11. 11.🔦 Which of these is translucent? (a) tissue paper (b) a brick (c) clear glass (d) your hand
  12. 12.🛟 What should you wear for a long time in the hot sun? (a) a raincoat (b) nothing on your head (c) a woollen sweater (d) a cap or hat
  13. 13.🧺 Do we need a mirror for the shadow clock? (a) needed (b) not needed
  14. 14.🧺 Three of these are needed for the shadow clock. Which one is NOT needed? (a) yeast (b) a clock to check (c) a sunny open place (d) chalk to mark shadows
  15. 15.⚖️ 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 stick (c) the time of day (d) the stick kept upright
  16. 16.🧺 Do we need a magnet for the shadow clock? (a) not needed (b) needed
  17. 17.True or false: a steel plate is opaque. (a) True (b) False
  18. 18.🌅 In the morning the Sun is in the east. Which way does a shadow point? (a) east (b) west (c) up (d) north
  19. 19.True or false: a sunny open place is needed for the shadow clock. (a) False (b) True
  20. 20.🔍 Which is the odd one out? (a) a wooden board (b) tissue paper (c) oily paper (d) butter paper
  21. 21.⚖️ Fair test — how does the shadow of a stick change through the day? True or false: the same spot is what we measure. (a) True (b) False
  22. 22.True or false: a wooden board is opaque. (a) True (b) False
  23. 23.True or false: a sunny open place is not needed for the shadow clock. (a) False (b) True
  24. 24.🧺 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 balloon
  25. 25.🧺 Do we need yeast for the shadow clock? (a) not needed (b) needed
  26. 26.🔦 Which of these is translucent? (a) a brick (b) oily paper (c) a wooden board (d) air
  27. 27.🔦 Is clear glass opaque, translucent or transparent? (a) translucent (b) opaque (c) transparent
  28. 28.🧺 Do we need a battery cell for the shadow clock? (a) not needed (b) needed
  29. 29.True or false: clean water is translucent. (a) False (b) True
  30. 30.True or false: a mirror is not needed for the shadow clock. (a) False (b) True
  31. 31.⚖️ 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
  32. 32.⚖️ Fair test — how does the shadow of a stick change through the day? Which of these is what we measure? (a) the stick kept upright (b) the same stick (c) the same spot (d) shadow length
  33. 33.🔦 Which of these is opaque? (a) clear glass (b) a book (c) frosted glass (d) oily paper
  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.🔍 Which is the odd one out? (a) butter paper (b) oily paper (c) clear plastic film (d) frosted glass
  36. 36.⚖️ 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
  37. 37.🌍 Why does the stick’s shadow move during the day? (a) the stick walks (b) the stick grows (c) the ground slides (d) Earth keeps spinning
  38. 38.🧺 Which of these is needed for the shadow clock? (a) a balloon (b) chalk to mark shadows (c) a battery cell (d) yeast
  39. 39.🔦 Which of these is opaque? (a) tissue paper (b) air (c) your hand (d) clear plastic film
  40. 40.🌞 When is a stick’s shadow the shortest? (a) late evening (b) around noon (c) at night (d) early morning

Answer key

  1. we change it
  2. clear glass
  3. False
  4. look straight at the Sun
  5. we keep it the same
  6. a wooden board
  7. we measure it
  8. clean water
  9. long
  10. False
  11. tissue paper
  12. a cap or hat
  13. not needed
  14. yeast
  15. the time of day
  16. not needed
  17. True
  18. west
  19. True
  20. a wooden board
  21. False
  22. True
  23. False
  24. a balloon
  25. not needed
  26. oily paper
  27. transparent
  28. not needed
  29. False
  30. True
  31. False
  32. shadow length
  33. a book
  34. True
  35. clear plastic film
  36. True
  37. Earth keeps spinning
  38. chalk to mark shadows
  39. your hand
  40. around noon

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