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Shadow and Sundial Experiment Worksheet

Science experiments lesson 27: Shadows and a sundial · Set 228 · 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 is the odd one out? (a) clear glass (b) clean water (c) a brick (d) air
  2. 2.🔮 Predict: you move a torch closer to your hand. The shadow on the wall gets ___. (a) brighter (b) coloured (c) smaller (d) bigger
  3. 3.⚖️ 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) False (b) True
  4. 4.🧺 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) chalk to mark shadows (d) a balloon
  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) shadow length (c) the same spot (d) the time of day
  6. 6.⚖️ Fair test — how does the shadow of a stick change through the day? Which of these is kept the same? (a) the same stick (b) the time of day (c) shadow length
  7. 7.🔍 Which is the odd one out? (a) a brick (b) a book (c) frosted glass (d) your hand
  8. 8.True or false: clear plastic film is transparent. (a) False (b) True
  9. 9.⚖️ Fair test — how does the shadow of a stick change through the day? Which of these is kept the same? (a) the stick kept upright (b) shadow length (c) the time of day
  10. 10.🧺 Do we need a mirror for the shadow clock? (a) needed (b) not needed
  11. 11.🔦 Which of these is transparent? (a) tissue paper (b) a book (c) butter paper (d) air
  12. 12.🧺 Which of these is needed for the shadow clock? (a) turmeric powder (b) a clock to check (c) a balloon (d) a magnet
  13. 13.🔦 Which of these is transparent? (a) a book (b) clean water (c) a wooden board (d) tissue paper
  14. 14.🔮 Predict: the Sun is low in the evening sky. The stick’s shadow is ___. (a) missing (b) short (c) round (d) long
  15. 15.True or false: a balloon is needed for the shadow clock. (a) False (b) True
  16. 16.🔦 Which of these is opaque? (a) frosted glass (b) air (c) your hand (d) tissue paper
  17. 17.🌞 When is a stick’s shadow the shortest? (a) at night (b) early morning (c) around noon (d) late evening
  18. 18.🔦 Which of these is opaque? (a) a book (b) frosted glass (c) air (d) oily paper
  19. 19.🧺 Do we need a battery cell for the shadow clock? (a) not needed (b) needed
  20. 20.True or false: yeast is not needed for the shadow clock. (a) False (b) True
  21. 21.⚖️ 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 stick (b) shadow length (c) the same spot (d) the time of day
  22. 22.True or false: a mirror is not needed for the shadow clock. (a) True (b) False
  23. 23.⚖️ 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 measure it (c) we keep it the same
  24. 24.⚖️ Fair test — how does the shadow of a stick change through the day? What do we do with “shadow length”? (a) we change it (b) we measure it (c) we keep it the same
  25. 25.🔦 Is oily paper opaque, translucent or transparent? (a) opaque (b) transparent (c) translucent
  26. 26.🛟 What should you wear for a long time in the hot sun? (a) a woollen sweater (b) nothing on your head (c) a raincoat (d) a cap or hat
  27. 27.🧺 Do we need a clock to check for the shadow clock? (a) needed (b) not needed
  28. 28.True or false: oily paper is opaque. (a) True (b) False
  29. 29.⚖️ Fair test — how does the shadow of a stick change through the day? True or false: the same spot is kept the same. (a) True (b) False
  30. 30.🧺 Which of these is needed for the shadow clock? (a) yeast (b) a mirror (c) a straight stick (d) a balloon
  31. 31.⚖️ Fair test — how does the shadow of a stick change through the day? What do we do with “the time of day”? (a) we change it (b) we keep it the same (c) we measure it
  32. 32.🧺 Do we need turmeric powder for the shadow clock? (a) needed (b) not needed
  33. 33.🔍 Which is the odd one out? (a) clear plastic film (b) a wooden board (c) a steel plate (d) a brick
  34. 34.True or false: a straight stick is not needed for the shadow clock. (a) True (b) False
  35. 35.True or false: a balloon is not needed for the shadow clock. (a) False (b) True
  36. 36.🧺 Do we need chalk to mark shadows for the shadow clock? (a) needed (b) not needed
  37. 37.⚖️ 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) True (b) False
  38. 38.True or false: a battery cell is not needed for the shadow clock. (a) False (b) True
  39. 39.True or false: a clock to check is needed for the shadow clock. (a) False (b) True
  40. 40.🔦 Which of these is transparent? (a) a wooden board (b) your hand (c) clear plastic film (d) a brick

Answer key

  1. a brick
  2. bigger
  3. True
  4. a balloon
  5. shadow length
  6. the same stick
  7. frosted glass
  8. True
  9. the stick kept upright
  10. not needed
  11. air
  12. a clock to check
  13. clean water
  14. long
  15. False
  16. your hand
  17. around noon
  18. a book
  19. not needed
  20. True
  21. the time of day
  22. True
  23. we keep it the same
  24. we measure it
  25. translucent
  26. a cap or hat
  27. needed
  28. False
  29. True
  30. a straight stick
  31. we change it
  32. not needed
  33. clear plastic film
  34. False
  35. True
  36. needed
  37. False
  38. True
  39. True
  40. clear plastic film

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