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Shadow and Sundial Experiment Worksheet

Science experiments lesson 27: Shadows and a sundial · Set 61 · 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.🔮 Predict: the Sun is low in the evening sky. The stick’s shadow is ___. (a) missing (b) round (c) long (d) short
  2. 2.🛟 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
  3. 3.🔦 Which of these is opaque? (a) clear glass (b) clear plastic film (c) a wooden board (d) tissue paper
  4. 4.🔍 Which is the odd one out? (a) your hand (b) a book (c) a wooden board (d) frosted glass
  5. 5.⚖️ Fair test — how does the shadow of a stick change through the day? Which of these is what we measure? (a) the time of day (b) the same stick (c) the same spot (d) shadow length
  6. 6.🧺 Do we need a magnet for the shadow clock? (a) needed (b) not needed
  7. 7.⚖️ 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 change it (c) we measure it
  8. 8.🌍 Why does the stick’s shadow move during the day? (a) the ground slides (b) Earth keeps spinning (c) the stick grows (d) the stick walks
  9. 9.🔦 Is a brick opaque, translucent or transparent? (a) transparent (b) translucent (c) opaque
  10. 10.🔦 Which of these is translucent? (a) clear plastic film (b) tissue paper (c) a steel plate (d) a brick
  11. 11.⚖️ Fair test — how does the shadow of a stick change through the day? What do we do with “the same spot”? (a) we measure it (b) we change it (c) we keep it the same
  12. 12.True or false: a clock to check is not needed for the shadow clock. (a) False (b) True
  13. 13.⚖️ 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
  14. 14.⚖️ 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 same stick (c) the time of day
  15. 15.True or false: air is transparent. (a) False (b) True
  16. 16.🛟 While watching shadows outdoors, what must you never do? (a) wear a cap (b) mark with chalk (c) sit in the shade (d) look straight at the Sun
  17. 17.🧺 Three of these are needed for the shadow clock. Which one is NOT needed? (a) turmeric powder (b) a straight stick (c) chalk to mark shadows (d) a sunny open place
  18. 18.True or false: a battery cell is not needed for the shadow clock. (a) False (b) True
  19. 19.🔍 Which is the odd one out? (a) clear glass (b) a book (c) a steel plate (d) a wooden board
  20. 20.True or false: tissue paper is translucent. (a) True (b) False
  21. 21.🔦 Is clear glass 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 same stick”? (a) we measure it (b) we keep it the same (c) we change it
  23. 23.⚖️ Fair test — how does the shadow of a stick change through the day? True or false: the time of day is the one thing we change. (a) False (b) True
  24. 24.⚖️ Fair test — how does the shadow of a stick change through the day? True or false: the stick kept upright is the one thing we change. (a) False (b) True
  25. 25.🔦 Which of these is transparent? (a) a book (b) clear glass (c) a wooden board (d) your hand
  26. 26.🔦 Which of these is opaque? (a) butter paper (b) air (c) a brick (d) clear plastic film
  27. 27.🔍 Which is the odd one out? (a) clean water (b) a book (c) your hand (d) a brick
  28. 28.⚖️ Fair test — how does the shadow of a stick change through the day? True or false: shadow length is kept the same. (a) True (b) False
  29. 29.🔦 Is your hand opaque, translucent or transparent? (a) translucent (b) opaque (c) transparent
  30. 30.🔮 Predict: you move a torch closer to your hand. The shadow on the wall gets ___. (a) smaller (b) brighter (c) bigger (d) coloured
  31. 31.🧺 Which of these is not needed for the shadow clock? (a) a sunny open place (b) yeast (c) chalk to mark shadows (d) a clock to check
  32. 32.🧺 Which of these is needed for the shadow clock? (a) a straight stick (b) a battery cell (c) a magnet (d) yeast
  33. 33.True or false: clean water is opaque. (a) False (b) True
  34. 34.True or false: a mirror is needed for the shadow clock. (a) True (b) False
  35. 35.🧺 Do we need a straight stick for the shadow clock? (a) needed (b) not needed
  36. 36.🧺 Which of these is needed for the shadow clock? (a) a battery cell (b) a sunny open place (c) a mirror (d) a magnet
  37. 37.🔦 Is tissue paper opaque, translucent or transparent? (a) transparent (b) opaque (c) translucent
  38. 38.🧺 Which of these is needed for the shadow clock? (a) a clock to check (b) a magnet (c) a mirror (d) yeast
  39. 39.🔍 Which is the odd one out? (a) clear glass (b) clear plastic film (c) clean water (d) your hand
  40. 40.True or false: a battery cell is needed for the shadow clock. (a) False (b) True

Answer key

  1. long
  2. a cap or hat
  3. a wooden board
  4. frosted glass
  5. shadow length
  6. not needed
  7. we change it
  8. Earth keeps spinning
  9. opaque
  10. tissue paper
  11. we keep it the same
  12. False
  13. we measure it
  14. the same stick
  15. True
  16. look straight at the Sun
  17. turmeric powder
  18. True
  19. clear glass
  20. True
  21. transparent
  22. we keep it the same
  23. True
  24. False
  25. clear glass
  26. a brick
  27. clean water
  28. False
  29. opaque
  30. bigger
  31. yeast
  32. a straight stick
  33. False
  34. False
  35. needed
  36. a sunny open place
  37. translucent
  38. a clock to check
  39. your hand
  40. False

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