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Shadow and Sundial Experiment Worksheet

Science experiments lesson 27: Shadows and a sundial · Set 692 · 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 chalk to mark shadows for the shadow clock? (a) not needed (b) needed
  2. 2.⚖️ 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
  3. 3.🌅 In the morning the Sun is in the east. Which way does a shadow point? (a) north (b) west (c) east (d) up
  4. 4.⚖️ Fair test — how does the shadow of a stick change through the day? What do we do with “the stick kept upright”? (a) we measure it (b) we keep it the same (c) we change it
  5. 5.🔦 Which of these is transparent? (a) a wooden board (b) frosted glass (c) butter paper (d) air
  6. 6.🔦 Which of these is translucent? (a) tissue paper (b) a brick (c) clean water (d) a book
  7. 7.🔦 Which of these is transparent? (a) a wooden board (b) clear plastic film (c) a book (d) a steel plate
  8. 8.🔍 Which is the odd one out? (a) oily paper (b) a steel plate (c) butter paper (d) frosted glass
  9. 9.🧺 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 magnet
  10. 10.🧺 Do we need a magnet for the shadow clock? (a) needed (b) not needed
  11. 11.🕰️ What is a sundial used for? (a) making rainbows (b) telling the time (c) measuring rain (d) weighing things
  12. 12.🔮 Predict: the Sun is low in the evening sky. The stick’s shadow is ___. (a) short (b) round (c) missing (d) long
  13. 13.True or false: a straight stick is needed for the shadow clock. (a) True (b) False
  14. 14.🧺 Do we need a mirror for the shadow clock? (a) not needed (b) needed
  15. 15.🔦 Which of these is opaque? (a) clear glass (b) oily paper (c) a brick (d) frosted glass
  16. 16.🔍 Which is the odd one out? (a) a wooden board (b) a steel plate (c) a brick (d) frosted glass
  17. 17.True or false: a mirror is needed for the shadow clock. (a) False (b) True
  18. 18.🔦 Which of these is transparent? (a) a brick (b) clean water (c) a steel plate (d) a book
  19. 19.⚖️ Fair test — how does the shadow of a stick change through the day? What do we do with “the same stick”? (a) we keep it the same (b) we change it (c) we measure it
  20. 20.⚖️ Fair test — how does the shadow of a stick change through the day? What do we do with “the time of day”? (a) we measure it (b) we change it (c) we keep it the same
  21. 21.True or false: clear glass is opaque. (a) True (b) False
  22. 22.🛟 While watching shadows outdoors, what must you never do? (a) mark with chalk (b) wear a cap (c) look straight at the Sun (d) sit in the shade
  23. 23.🧺 Which of these is needed for the shadow clock? (a) a balloon (b) a sunny open place (c) a battery cell (d) turmeric powder
  24. 24.True or false: a book is translucent. (a) True (b) False
  25. 25.🧺 Three of these are needed for the shadow clock. Which one is NOT needed? (a) chalk to mark shadows (b) a straight stick (c) a clock to check (d) a mirror
  26. 26.🛟 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
  27. 27.🧺 Three of these are needed for the shadow clock. Which one is NOT needed? (a) a straight stick (b) a clock to check (c) a battery cell (d) a sunny open place
  28. 28.🧺 Which of these is not needed for the shadow clock? (a) a clock to check (b) chalk to mark shadows (c) a magnet (d) a straight stick
  29. 29.⚖️ Fair test — how does the shadow of a stick change through the day? True or false: the stick kept upright is what we measure. (a) False (b) True
  30. 30.True or false: turmeric powder is needed for the shadow clock. (a) False (b) True
  31. 31.True or false: a clock to check is not needed for the shadow clock. (a) True (b) False
  32. 32.🔦 Is clear plastic film opaque, translucent or transparent? (a) opaque (b) transparent (c) translucent
  33. 33.🔦 Is butter paper opaque, translucent or transparent? (a) transparent (b) translucent (c) opaque
  34. 34.True or false: a clock to check is needed for the shadow clock. (a) True (b) False
  35. 35.⚖️ Fair test — how does the shadow of a stick change through the day? True or false: the same spot is what we measure. (a) True (b) False
  36. 36.🔮 Predict: you move a torch closer to your hand. The shadow on the wall gets ___. (a) brighter (b) smaller (c) coloured (d) bigger
  37. 37.🌞 When is a stick’s shadow the shortest? (a) early morning (b) late evening (c) at night (d) around noon
  38. 38.🧺 Which of these is needed for the shadow clock? (a) a straight stick (b) a magnet (c) a balloon (d) a battery cell
  39. 39.🔦 Which of these is opaque? (a) clean water (b) tissue paper (c) a book (d) clear plastic film
  40. 40.⚖️ 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) True (b) False

Answer key

  1. needed
  2. False
  3. west
  4. we keep it the same
  5. air
  6. tissue paper
  7. clear plastic film
  8. a steel plate
  9. a magnet
  10. not needed
  11. telling the time
  12. long
  13. True
  14. not needed
  15. a brick
  16. frosted glass
  17. False
  18. clean water
  19. we keep it the same
  20. we change it
  21. False
  22. look straight at the Sun
  23. a sunny open place
  24. False
  25. a mirror
  26. a cap or hat
  27. a battery cell
  28. a magnet
  29. False
  30. False
  31. False
  32. transparent
  33. translucent
  34. True
  35. False
  36. bigger
  37. around noon
  38. a straight stick
  39. a book
  40. False

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