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Shadow and Sundial Experiment Worksheet

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

Answer key

  1. long
  2. a brick
  3. we keep it the same
  4. frosted glass
  5. False
  6. chalk to mark shadows
  7. transparent
  8. False
  9. a battery cell
  10. a cap or hat
  11. a balloon
  12. True
  13. clear plastic film
  14. we measure it
  15. a mirror
  16. True
  17. a straight stick
  18. around noon
  19. we keep it the same
  20. bigger
  21. False
  22. False
  23. air
  24. needed
  25. False
  26. False
  27. True
  28. True
  29. a brick
  30. shadow length
  31. False
  32. False
  33. True
  34. False
  35. not needed
  36. tissue paper
  37. a battery cell
  38. yeast
  39. transparent
  40. a book

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