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Shadow and Sundial Experiment Worksheet

Science experiments lesson 27: Shadows and a sundial · Set 604 · 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 translucent? (a) clear plastic film (b) clear glass (c) a book (d) butter paper
  2. 2.🛟 What should you wear for a long time in the hot sun? (a) nothing on your head (b) a raincoat (c) a cap or hat (d) a woollen sweater
  3. 3.🔦 Which of these is translucent? (a) clear glass (b) a wooden board (c) oily paper (d) a steel plate
  4. 4.True or false: a balloon is not needed for the shadow clock. (a) True (b) False
  5. 5.🧺 Three of these are needed for the shadow clock. Which one is NOT needed? (a) a straight stick (b) a clock to check (c) chalk to mark shadows (d) a battery cell
  6. 6.🔮 Predict: you move a torch closer to your hand. The shadow on the wall gets ___. (a) smaller (b) brighter (c) bigger (d) coloured
  7. 7.🧺 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) a mirror (d) a straight stick
  8. 8.True or false: a book is opaque. (a) True (b) False
  9. 9.🔮 Predict: on a fully cloudy day, the sundial ___. (a) runs faster (b) does not work well (c) shows two times (d) works better
  10. 10.🔦 Which of these is opaque? (a) butter paper (b) air (c) a brick (d) clear glass
  11. 11.🧺 Do we need chalk to mark shadows for the shadow clock? (a) not needed (b) needed
  12. 12.⚖️ 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 time of day (c) the same stick (d) shadow length
  13. 13.🔍 Which is the odd one out? (a) tissue paper (b) frosted glass (c) your hand (d) butter paper
  14. 14.🔦 Is air opaque, translucent or transparent? (a) transparent (b) translucent (c) opaque
  15. 15.⚖️ Fair test — how does the shadow of a stick change through the day? True or false: the time of day is the one thing we change. (a) True (b) False
  16. 16.🧺 Three of these are needed for the shadow clock. Which one is NOT needed? (a) yeast (b) a clock to check (c) a straight stick (d) chalk to mark shadows
  17. 17.⚖️ 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
  18. 18.🧺 Which of these is not needed for the shadow clock? (a) a straight stick (b) chalk to mark shadows (c) a mirror (d) a clock to check
  19. 19.🔦 Is a wooden board opaque, translucent or transparent? (a) translucent (b) opaque (c) transparent
  20. 20.🔦 Is clear glass opaque, translucent or transparent? (a) transparent (b) opaque (c) translucent
  21. 21.True or false: tissue paper is opaque. (a) True (b) False
  22. 22.True or false: a sunny open place is needed for the shadow clock. (a) True (b) False
  23. 23.True or false: your hand is opaque. (a) False (b) True
  24. 24.True or false: clear plastic film is opaque. (a) False (b) True
  25. 25.⚖️ Fair test — how does the shadow of a stick change through the day? What do we do with “the stick kept upright”? (a) we keep it the same (b) we change it (c) we measure it
  26. 26.🧺 Which of these is not needed for the shadow clock? (a) a balloon (b) a straight stick (c) a clock to check (d) chalk to mark shadows
  27. 27.⚖️ 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
  28. 28.🧺 Which of these is not needed for the shadow clock? (a) chalk to mark shadows (b) a clock to check (c) a sunny open place (d) a magnet
  29. 29.🧺 Do we need a straight stick for the shadow clock? (a) not needed (b) needed
  30. 30.🔮 Predict: the Sun is low in the evening sky. The stick’s shadow is ___. (a) missing (b) round (c) long (d) short
  31. 31.🧺 Three of these are needed for the shadow clock. Which one is NOT needed? (a) a clock to check (b) a straight stick (c) a sunny open place (d) a magnet
  32. 32.🧺 Which of these is needed for the shadow clock? (a) yeast (b) chalk to mark shadows (c) turmeric powder (d) a balloon
  33. 33.🔦 Which of these is opaque? (a) clean water (b) a wooden board (c) clear plastic film (d) oily paper
  34. 34.🧺 Which of these is needed for the shadow clock? (a) a straight stick (b) yeast (c) a balloon (d) a magnet
  35. 35.🧺 Do we need turmeric powder for the shadow clock? (a) not needed (b) needed
  36. 36.⚖️ 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 stick
  37. 37.🔦 Is a book opaque, translucent or transparent? (a) opaque (b) transparent (c) translucent
  38. 38.🔦 Which of these is transparent? (a) your hand (b) frosted glass (c) clear plastic film (d) butter paper
  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 time of day is what we measure. (a) True (b) False

Answer key

  1. butter paper
  2. a cap or hat
  3. oily paper
  4. True
  5. a battery cell
  6. bigger
  7. a mirror
  8. True
  9. does not work well
  10. a brick
  11. needed
  12. shadow length
  13. your hand
  14. transparent
  15. True
  16. yeast
  17. False
  18. a mirror
  19. opaque
  20. transparent
  21. False
  22. True
  23. True
  24. False
  25. we keep it the same
  26. a balloon
  27. we change it
  28. a magnet
  29. needed
  30. long
  31. a magnet
  32. chalk to mark shadows
  33. a wooden board
  34. a straight stick
  35. not needed
  36. the same stick
  37. opaque
  38. clear plastic film
  39. not needed
  40. False

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