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Shadow and Sundial Experiment Worksheet

Science experiments lesson 27: Shadows and a sundial · Set 84 · 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.🧺 Three of these are needed for the shadow clock. Which one is NOT needed? (a) a mirror (b) chalk to mark shadows (c) a clock to check (d) a straight stick
  2. 2.True or false: a book is opaque. (a) False (b) True
  3. 3.True or false: a sunny open place is not needed for the shadow clock. (a) True (b) False
  4. 4.🧺 Three of these are needed for the shadow clock. Which one is NOT needed? (a) a straight stick (b) yeast (c) chalk to mark shadows (d) a sunny open place
  5. 5.🛟 What should you wear for a long time in the hot sun? (a) nothing on your head (b) a raincoat (c) a woollen sweater (d) a cap or hat
  6. 6.🧺 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
  7. 7.🧺 Do we need yeast for the shadow clock? (a) needed (b) not needed
  8. 8.🧺 Which of these is not needed for the shadow clock? (a) a sunny open place (b) a clock to check (c) a mirror (d) a straight stick
  9. 9.True or false: a straight stick is needed for the shadow clock. (a) False (b) True
  10. 10.⚖️ Fair test — how does the shadow of a stick change through the day? Which of these is what we measure? (a) the same spot (b) the stick kept upright (c) the same stick (d) shadow length
  11. 11.🧺 Which of these is not needed for the shadow clock? (a) a clock to check (b) a magnet (c) a sunny open place (d) chalk to mark shadows
  12. 12.⚖️ Fair test — how does the shadow of a stick change through the day? Which of these is kept the same? (a) the time of day (b) shadow length (c) the same spot
  13. 13.🧺 Which of these is not needed for the shadow clock? (a) a battery cell (b) chalk to mark shadows (c) a sunny open place (d) a clock to check
  14. 14.True or false: a steel plate is translucent. (a) True (b) False
  15. 15.🛟 While watching shadows outdoors, what must you never do? (a) sit in the shade (b) look straight at the Sun (c) wear a cap (d) mark with chalk
  16. 16.⚖️ Fair test — how does the shadow of a stick change through the day? Which of these is the one thing we change? (a) the same stick (b) the time of day (c) the same spot (d) shadow length
  17. 17.🔍 Which is the odd one out? (a) a brick (b) clear glass (c) air (d) clear plastic film
  18. 18.🌞 When is a stick’s shadow the shortest? (a) around noon (b) at night (c) early morning (d) late evening
  19. 19.🧺 Which of these is not needed for the shadow clock? (a) chalk to mark shadows (b) yeast (c) a sunny open place (d) a straight stick
  20. 20.⚖️ 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
  21. 21.🧺 Do we need a mirror for the shadow clock? (a) not needed (b) needed
  22. 22.🔍 Which is the odd one out? (a) clear plastic film (b) clear glass (c) air (d) your hand
  23. 23.True or false: clear glass is transparent. (a) True (b) False
  24. 24.🧺 Do we need turmeric powder for the shadow clock? (a) needed (b) not needed
  25. 25.🔦 Which of these is opaque? (a) clear plastic film (b) butter paper (c) a brick (d) frosted glass
  26. 26.🧺 Three of these are needed for the shadow clock. Which one is NOT needed? (a) a sunny open place (b) a clock to check (c) a balloon (d) a straight stick
  27. 27.🧺 Do we need a clock to check for the shadow clock? (a) needed (b) not needed
  28. 28.True or false: a clock to check is not needed for the shadow clock. (a) False (b) True
  29. 29.🔦 Is clear plastic film opaque, translucent or transparent? (a) transparent (b) opaque (c) translucent
  30. 30.🌅 In the morning the Sun is in the east. Which way does a shadow point? (a) north (b) west (c) up (d) east
  31. 31.🌍 Why does the stick’s shadow move during the day? (a) the stick grows (b) Earth keeps spinning (c) the ground slides (d) the stick walks
  32. 32.True or false: a straight stick is not needed for the shadow clock. (a) True (b) False
  33. 33.True or false: a balloon is not needed for the shadow clock. (a) False (b) True
  34. 34.🔍 Which is the odd one out? (a) oily paper (b) frosted glass (c) a wooden board (d) butter paper
  35. 35.🔮 Predict: the Sun is low in the evening sky. The stick’s shadow is ___. (a) long (b) round (c) missing (d) short
  36. 36.True or false: oily paper is transparent. (a) True (b) False
  37. 37.⚖️ Fair test — how does the shadow of a stick change through the day? True or false: the stick kept upright is kept the same. (a) True (b) False
  38. 38.🧺 Which of these is needed for the shadow clock? (a) a battery cell (b) a magnet (c) a balloon (d) a clock to check
  39. 39.True or false: a magnet is not needed for the shadow clock. (a) True (b) False
  40. 40.🧺 Three of these are needed for the shadow clock. Which one is NOT needed? (a) a clock to check (b) chalk to mark shadows (c) a battery cell (d) a straight stick

Answer key

  1. a mirror
  2. True
  3. False
  4. yeast
  5. a cap or hat
  6. a magnet
  7. not needed
  8. a mirror
  9. True
  10. shadow length
  11. a magnet
  12. the same spot
  13. a battery cell
  14. False
  15. look straight at the Sun
  16. the time of day
  17. a brick
  18. around noon
  19. yeast
  20. we measure it
  21. not needed
  22. your hand
  23. True
  24. not needed
  25. a brick
  26. a balloon
  27. needed
  28. False
  29. transparent
  30. west
  31. Earth keeps spinning
  32. False
  33. True
  34. a wooden board
  35. long
  36. False
  37. True
  38. a clock to check
  39. True
  40. a battery cell

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