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Shadow and Sundial Experiment Worksheet

Science experiments lesson 27: Shadows and a sundial · Set 752 · 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 “shadow length”? (a) we keep it the same (b) we measure it (c) we change it
  2. 2.🌞 When is a stick’s shadow the shortest? (a) early morning (b) late evening (c) at night (d) around noon
  3. 3.🔦 Which of these is opaque? (a) oily paper (b) butter paper (c) clean water (d) a steel plate
  4. 4.🧺 Which of these is needed for the shadow clock? (a) a mirror (b) chalk to mark shadows (c) yeast (d) a magnet
  5. 5.🔍 Which is the odd one out? (a) a brick (b) a wooden board (c) a book (d) tissue paper
  6. 6.⚖️ 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) False (b) True
  7. 7.True or false: a mirror is needed for the shadow clock. (a) False (b) True
  8. 8.⚖️ 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) True (b) False
  9. 9.True or false: a wooden board is transparent. (a) True (b) False
  10. 10.⚖️ 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
  11. 11.🧺 Three of these are needed for the shadow clock. Which one is NOT needed? (a) a sunny open place (b) a magnet (c) a clock to check (d) a straight stick
  12. 12.⚖️ Fair test — how does the shadow of a stick change through the day? True or false: the time of day is what we measure. (a) False (b) True
  13. 13.🧺 Which of these is needed for the shadow clock? (a) a balloon (b) a magnet (c) a sunny open place (d) a mirror
  14. 14.🧺 Which of these is not needed for the shadow clock? (a) chalk to mark shadows (b) a straight stick (c) a sunny open place (d) yeast
  15. 15.🌅 In the morning the Sun is in the east. Which way does a shadow point? (a) up (b) north (c) west (d) east
  16. 16.🛟 What should you wear for a long time in the hot sun? (a) a raincoat (b) nothing on your head (c) a cap or hat (d) a woollen sweater
  17. 17.⚖️ 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
  18. 18.🔍 Which is the odd one out? (a) your hand (b) frosted glass (c) a brick (d) a steel plate
  19. 19.🔍 Which is the odd one out? (a) oily paper (b) frosted glass (c) tissue paper (d) clear glass
  20. 20.🧺 Do we need a straight stick for the shadow clock? (a) needed (b) not needed
  21. 21.🔦 Is your hand opaque, translucent or transparent? (a) translucent (b) opaque (c) transparent
  22. 22.🧺 Which of these is needed for the shadow clock? (a) turmeric powder (b) a straight stick (c) yeast (d) a mirror
  23. 23.🔮 Predict: the Sun is low in the evening sky. The stick’s shadow is ___. (a) missing (b) long (c) short (d) round
  24. 24.⚖️ 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
  25. 25.🧺 Three of these are needed for the shadow clock. Which one is NOT needed? (a) a straight stick (b) chalk to mark shadows (c) a mirror (d) a sunny open place
  26. 26.True or false: clear plastic film is opaque. (a) False (b) True
  27. 27.True or false: clean water is transparent. (a) False (b) True
  28. 28.🔦 Which of these is translucent? (a) a wooden board (b) a steel plate (c) clear glass (d) butter paper
  29. 29.True or false: a clock to check is not needed for the shadow clock. (a) True (b) False
  30. 30.True or false: clean water is opaque. (a) True (b) False
  31. 31.🔮 Predict: you move a torch closer to your hand. The shadow on the wall gets ___. (a) smaller (b) bigger (c) coloured (d) brighter
  32. 32.⚖️ 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
  33. 33.🔦 Which of these is translucent? (a) a steel plate (b) a wooden board (c) clear plastic film (d) frosted glass
  34. 34.True or false: a mirror is not needed for the shadow clock. (a) True (b) False
  35. 35.True or false: a straight stick is not needed for the shadow clock. (a) False (b) True
  36. 36.🧺 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) a straight stick
  37. 37.True or false: a book is translucent. (a) False (b) True
  38. 38.True or false: a battery cell is needed for the shadow clock. (a) True (b) False
  39. 39.True or false: a brick is transparent. (a) True (b) False
  40. 40.True or false: a battery cell is not needed for the shadow clock. (a) True (b) False

Answer key

  1. we measure it
  2. around noon
  3. a steel plate
  4. chalk to mark shadows
  5. tissue paper
  6. False
  7. False
  8. True
  9. False
  10. the same spot
  11. a magnet
  12. False
  13. a sunny open place
  14. yeast
  15. west
  16. a cap or hat
  17. True
  18. frosted glass
  19. clear glass
  20. needed
  21. opaque
  22. a straight stick
  23. long
  24. the time of day
  25. a mirror
  26. False
  27. True
  28. butter paper
  29. False
  30. False
  31. bigger
  32. we change it
  33. frosted glass
  34. True
  35. False
  36. yeast
  37. False
  38. False
  39. False
  40. True

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