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Shadow and Sundial Experiment Worksheet

Science experiments lesson 27: Shadows and a sundial · Set 195 · 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.🧺 Three of these are needed for the shadow clock. Which one is NOT needed? (a) a battery cell (b) a sunny open place (c) chalk to mark shadows (d) a straight stick
  2. 2.True or false: yeast is not needed for the shadow clock. (a) True (b) False
  3. 3.⚖️ Fair test — how does the shadow of a stick change through the day? Which of these is what we measure? (a) the same spot (b) the stick kept upright (c) shadow length (d) the same stick
  4. 4.🧺 Do we need chalk to mark shadows for the shadow clock? (a) not needed (b) needed
  5. 5.🧺 Do we need a battery cell for the shadow clock? (a) needed (b) not needed
  6. 6.🔮 Predict: you move a torch closer to your hand. The shadow on the wall gets ___. (a) coloured (b) smaller (c) bigger (d) brighter
  7. 7.🔦 Which of these is translucent? (a) butter paper (b) a brick (c) clean water (d) clear plastic film
  8. 8.True or false: a steel plate is opaque. (a) False (b) True
  9. 9.🧺 Do we need a balloon for the shadow clock? (a) not needed (b) needed
  10. 10.True or false: clear glass is transparent. (a) False (b) True
  11. 11.🔮 Predict: the Sun is low in the evening sky. The stick’s shadow is ___. (a) round (b) long (c) short (d) missing
  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 straight stick (b) a sunny open place (c) chalk to mark shadows (d) a magnet
  14. 14.🔦 Which of these is translucent? (a) frosted glass (b) clear plastic film (c) air (d) a brick
  15. 15.🧺 Do we need a straight stick for the shadow clock? (a) not needed (b) needed
  16. 16.🔦 Which of these is transparent? (a) tissue paper (b) clear plastic film (c) a book (d) your hand
  17. 17.🧺 Which of these is needed for the shadow clock? (a) a battery cell (b) chalk to mark shadows (c) a mirror (d) a magnet
  18. 18.True or false: a battery cell is needed for the shadow clock. (a) True (b) False
  19. 19.🧺 Which of these is not needed for the shadow clock? (a) a straight stick (b) a clock to check (c) turmeric powder (d) a sunny open place
  20. 20.⚖️ Fair test — how does the shadow of a stick change through the day? Which of these is the one thing we change? (a) the time of day (b) shadow length (c) the same stick (d) the same spot
  21. 21.⚖️ Fair test — how does the shadow of a stick change through the day? What do we do with “the same spot”? (a) we change it (b) we keep it the same (c) we measure it
  22. 22.🛟 What should you wear for a long time in the hot sun? (a) a cap or hat (b) a woollen sweater (c) a raincoat (d) nothing on your head
  23. 23.🔦 Is oily paper opaque, translucent or transparent? (a) opaque (b) translucent (c) transparent
  24. 24.⚖️ 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
  25. 25.⚖️ 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) True (b) False
  26. 26.True or false: a magnet is not needed for the shadow clock. (a) True (b) False
  27. 27.🔦 Is a steel plate opaque, translucent or transparent? (a) transparent (b) translucent (c) opaque
  28. 28.⚖️ 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
  29. 29.True or false: a book is opaque. (a) False (b) True
  30. 30.True or false: a brick is transparent. (a) False (b) True
  31. 31.🛟 While watching shadows outdoors, what must you never do? (a) sit in the shade (b) mark with chalk (c) wear a cap (d) look straight at the Sun
  32. 32.🧺 Three of these are needed for the shadow clock. Which one is NOT needed? (a) chalk to mark shadows (b) a clock to check (c) yeast (d) a sunny open place
  33. 33.🧺 Which of these is needed for the shadow clock? (a) turmeric powder (b) a clock to check (c) a mirror (d) a battery cell
  34. 34.🔦 Which of these is opaque? (a) clean water (b) clear glass (c) a wooden board (d) frosted glass
  35. 35.🕰️ What is a sundial used for? (a) weighing things (b) measuring rain (c) making rainbows (d) telling the time
  36. 36.True or false: a sunny open place is not needed for the shadow clock. (a) False (b) True
  37. 37.True or false: turmeric powder is not needed for the shadow clock. (a) False (b) True
  38. 38.True or false: a magnet is needed for the shadow clock. (a) True (b) False
  39. 39.🧺 Do we need yeast for the shadow clock? (a) needed (b) not needed
  40. 40.⚖️ 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

Answer key

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

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