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Shadow and Sundial Experiment Worksheet

Science experiments lesson 27: Shadows and a sundial · Set 798 · 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.🧺 Do we need a mirror for the shadow clock? (a) needed (b) not needed
  2. 2.🔦 Is clear glass opaque, translucent or transparent? (a) translucent (b) transparent (c) opaque
  3. 3.True or false: a straight stick is not needed for the shadow clock. (a) True (b) False
  4. 4.⚖️ Fair test — how does the shadow of a stick change through the day? True or false: the same stick is the one thing we change. (a) True (b) False
  5. 5.🔦 Which of these is translucent? (a) a brick (b) clear plastic film (c) tissue paper (d) a steel plate
  6. 6.🕰️ What is a sundial used for? (a) making rainbows (b) telling the time (c) measuring rain (d) weighing things
  7. 7.🛟 While watching shadows outdoors, what must you never do? (a) wear a cap (b) sit in the shade (c) look straight at the Sun (d) mark with chalk
  8. 8.⚖️ 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 same spot (c) the time of day (d) the stick kept upright
  9. 9.⚖️ Fair test — how does the shadow of a stick change through the day? What do we do with “the time of day”? (a) we keep it the same (b) we measure it (c) we change it
  10. 10.🧺 Three of these are needed for the shadow clock. Which one is NOT needed? (a) a clock to check (b) a straight stick (c) a sunny open place (d) yeast
  11. 11.🔍 Which is the odd one out? (a) a wooden board (b) a steel plate (c) clear plastic film (d) a brick
  12. 12.True or false: a mirror is not needed for the shadow clock. (a) True (b) False
  13. 13.True or false: a balloon is needed for the shadow clock. (a) True (b) False
  14. 14.🛟 What should you wear for a long time in the hot sun? (a) a cap or hat (b) a woollen sweater (c) nothing on your head (d) a raincoat
  15. 15.⚖️ 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 spot
  16. 16.🧺 Do we need yeast for the shadow clock? (a) needed (b) not needed
  17. 17.True or false: a sunny open place is not needed for the shadow clock. (a) False (b) True
  18. 18.⚖️ 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) False (b) True
  19. 19.🧺 Which of these is needed for the shadow clock? (a) turmeric powder (b) a balloon (c) a straight stick (d) a magnet
  20. 20.🔦 Which of these is translucent? (a) a wooden board (b) a book (c) butter paper (d) a steel plate
  21. 21.🔦 Is oily paper opaque, translucent or transparent? (a) transparent (b) opaque (c) translucent
  22. 22.⚖️ Fair test — how does the shadow of a stick change through the day? What do we do with “the stick kept upright”? (a) we keep it the same (b) we measure it (c) we change it
  23. 23.⚖️ Fair test — how does the shadow of a stick change through the day? Which of these is what we measure? (a) the same stick (b) shadow length (c) the stick kept upright (d) the time of day
  24. 24.🔍 Which is the odd one out? (a) air (b) butter paper (c) clean water (d) clear glass
  25. 25.🔦 Is your hand opaque, translucent or transparent? (a) translucent (b) transparent (c) opaque
  26. 26.🔦 Which of these is opaque? (a) frosted glass (b) a brick (c) clean water (d) tissue paper
  27. 27.🔦 Is tissue paper opaque, translucent or transparent? (a) translucent (b) opaque (c) transparent
  28. 28.⚖️ 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 keep it the same (c) we change it
  29. 29.🧺 Which of these is needed for the shadow clock? (a) a clock to check (b) a magnet (c) yeast (d) turmeric powder
  30. 30.🔮 Predict: the Sun is low in the evening sky. The stick’s shadow is ___. (a) missing (b) round (c) short (d) long
  31. 31.🔦 Is a steel plate opaque, translucent or transparent? (a) translucent (b) opaque (c) transparent
  32. 32.🧺 Do we need chalk to mark shadows for the shadow clock? (a) not needed (b) needed
  33. 33.🔍 Which is the odd one out? (a) a wooden board (b) butter paper (c) frosted glass (d) tissue paper
  34. 34.🔦 Is frosted glass opaque, translucent or transparent? (a) opaque (b) transparent (c) translucent
  35. 35.True or false: your hand is transparent. (a) True (b) False
  36. 36.🧺 Which of these is needed for the shadow clock? (a) yeast (b) a sunny open place (c) a mirror (d) a battery cell
  37. 37.🧺 Do we need turmeric powder for the shadow clock? (a) needed (b) not needed
  38. 38.🔦 Which of these is transparent? (a) tissue paper (b) frosted glass (c) clear plastic film (d) a brick
  39. 39.True or false: yeast is needed for the shadow clock. (a) False (b) True
  40. 40.🔦 Which of these is opaque? (a) clean water (b) tissue paper (c) clear plastic film (d) a steel plate

Answer key

  1. not needed
  2. transparent
  3. False
  4. False
  5. tissue paper
  6. telling the time
  7. look straight at the Sun
  8. the time of day
  9. we change it
  10. yeast
  11. clear plastic film
  12. True
  13. False
  14. a cap or hat
  15. the same spot
  16. not needed
  17. False
  18. True
  19. a straight stick
  20. butter paper
  21. translucent
  22. we keep it the same
  23. shadow length
  24. butter paper
  25. opaque
  26. a brick
  27. translucent
  28. we keep it the same
  29. a clock to check
  30. long
  31. opaque
  32. needed
  33. a wooden board
  34. translucent
  35. False
  36. a sunny open place
  37. not needed
  38. clear plastic film
  39. False
  40. a steel plate

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