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Shadow and Sundial Experiment Worksheet

Science experiments lesson 27: Shadows and a sundial · Set 159 · 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.🛟 While watching shadows outdoors, what must you never do? (a) sit in the shade (b) wear a cap (c) mark with chalk (d) look straight at the Sun
  2. 2.🧺 Three of these are needed for the shadow clock. Which one is NOT needed? (a) a magnet (b) chalk to mark shadows (c) a straight stick (d) a sunny open place
  3. 3.⚖️ Fair test — how does the shadow of a stick change through the day? What do we do with “shadow length”? (a) we measure it (b) we keep it the same (c) we change it
  4. 4.⚖️ 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
  5. 5.True or false: a wooden board is transparent. (a) False (b) True
  6. 6.🔦 Is a steel plate opaque, translucent or transparent? (a) opaque (b) transparent (c) translucent
  7. 7.🛟 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
  8. 8.🧺 Three of these are needed for the shadow clock. Which one is NOT needed? (a) a mirror (b) a straight stick (c) a sunny open place (d) a clock to check
  9. 9.True or false: turmeric powder is not needed for the shadow clock. (a) True (b) False
  10. 10.True or false: air is translucent. (a) False (b) True
  11. 11.⚖️ 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
  12. 12.🔮 Predict: the Sun is low in the evening sky. The stick’s shadow is ___. (a) long (b) round (c) short (d) missing
  13. 13.🧺 Which of these is not needed for the shadow clock? (a) a straight stick (b) a magnet (c) a clock to check (d) a sunny open place
  14. 14.True or false: clean water is translucent. (a) False (b) True
  15. 15.🌞 When is a stick’s shadow the shortest? (a) early morning (b) around noon (c) late evening (d) at night
  16. 16.🔦 Which of these is opaque? (a) clear glass (b) a wooden board (c) clear plastic film (d) frosted glass
  17. 17.🌍 Why does the stick’s shadow move during the day? (a) the ground slides (b) Earth keeps spinning (c) the stick walks (d) the stick grows
  18. 18.🔮 Predict: you move a torch closer to your hand. The shadow on the wall gets ___. (a) bigger (b) coloured (c) smaller (d) brighter
  19. 19.⚖️ 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
  20. 20.🧺 Which of these is needed for the shadow clock? (a) a clock to check (b) a magnet (c) a balloon (d) yeast
  21. 21.🧺 Which of these is needed for the shadow clock? (a) a magnet (b) a battery cell (c) a straight stick (d) a balloon
  22. 22.🔍 Which is the odd one out? (a) clear glass (b) your hand (c) clean water (d) air
  23. 23.True or false: your hand is opaque. (a) False (b) True
  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 spot (b) the time of day (c) shadow length (d) the same stick
  25. 25.True or false: a balloon is needed for the shadow clock. (a) True (b) False
  26. 26.🧺 Which of these is needed for the shadow clock? (a) a balloon (b) a mirror (c) turmeric powder (d) chalk to mark shadows
  27. 27.⚖️ Fair test — how does the shadow of a stick change through the day? Which of these is kept the same? (a) the time of day (b) shadow length (c) the same spot
  28. 28.🧺 Which of these is needed for the shadow clock? (a) a sunny open place (b) yeast (c) a balloon (d) a battery cell
  29. 29.🧺 Three of these are needed for the shadow clock. Which one is NOT needed? (a) a clock to check (b) a straight stick (c) yeast (d) chalk to mark shadows
  30. 30.True or false: a sunny open place is needed for the shadow clock. (a) False (b) True
  31. 31.⚖️ Fair test — how does the shadow of a stick change through the day? True or false: the stick kept upright is kept the same. (a) True (b) False
  32. 32.⚖️ Fair test — how does the shadow of a stick change through the day? True or false: the same stick is kept the same. (a) True (b) False
  33. 33.True or false: clean water is transparent. (a) True (b) False
  34. 34.True or false: your hand is translucent. (a) False (b) True
  35. 35.🔦 Which of these is opaque? (a) butter paper (b) oily paper (c) a book (d) clear glass
  36. 36.🧺 Do we need a straight stick for the shadow clock? (a) needed (b) not needed
  37. 37.🧺 Three of these are needed for the shadow clock. Which one is NOT needed? (a) a balloon (b) chalk to mark shadows (c) a straight stick (d) a sunny open place
  38. 38.🧺 Do we need a battery cell for the shadow clock? (a) needed (b) not needed
  39. 39.True or false: a magnet is not needed for the shadow clock. (a) True (b) False
  40. 40.⚖️ 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

Answer key

  1. look straight at the Sun
  2. a magnet
  3. we measure it
  4. we keep it the same
  5. False
  6. opaque
  7. a cap or hat
  8. a mirror
  9. True
  10. False
  11. False
  12. long
  13. a magnet
  14. False
  15. around noon
  16. a wooden board
  17. Earth keeps spinning
  18. bigger
  19. False
  20. a clock to check
  21. a straight stick
  22. your hand
  23. True
  24. the time of day
  25. False
  26. chalk to mark shadows
  27. the same spot
  28. a sunny open place
  29. yeast
  30. True
  31. True
  32. True
  33. True
  34. False
  35. a book
  36. needed
  37. a balloon
  38. not needed
  39. True
  40. True

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