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Shadow and Sundial Experiment Worksheet

Science experiments lesson 27: Shadows and a sundial · Set 400 · 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.

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

Answer key

  1. air
  2. False
  3. the same spot
  4. clear plastic film
  5. shadow length
  6. False
  7. a cap or hat
  8. a brick
  9. a straight stick
  10. True
  11. look straight at the Sun
  12. not needed
  13. a balloon
  14. a wooden board
  15. a balloon
  16. True
  17. a mirror
  18. chalk to mark shadows
  19. telling the time
  20. True
  21. a battery cell
  22. False
  23. the time of day
  24. yeast
  25. not needed
  26. True
  27. False
  28. opaque
  29. butter paper
  30. not needed
  31. we keep it the same
  32. False
  33. opaque
  34. around noon
  35. False
  36. False
  37. we keep it the same
  38. we change it
  39. not needed
  40. turmeric powder

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