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Slow and Fast Changes on Earth

Slow and Fast Changes on Earth. Science Chapter 6, Lessons 7 -8, pp. C 58 – C 80. Lesson 7 – Slow Changes on Land Weathering & Erosion (link). Weathering (link) the process that crumbles, cracks, and breaks up rocks. Physical Weathering Water __________ __________ Chemical Weathering

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Slow and Fast Changes on Earth

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  1. Slow and Fast Changes on Earth Science Chapter 6,Lessons 7 -8, pp. C 58 – C 80

  2. Lesson 7 – Slow Changes on LandWeathering & Erosion(link) • Weathering(link) • the process that crumbles, cracks, and breaks up rocks. • Physical Weathering • Water • __________ • __________ • Chemical Weathering • Acid rain • Rust (oxidation) • Biotic Weathering(link)(Hint: “bio-” means life) • ___________ & ____________ • Erosion • the process when weathered materials are carried away • ___________, __________, __________, & __________

  3. How do people change Earth’s surface? • Forests are cut • to make room for towns & cities • to provide lumber for building materials • Wetlands, like ponds and swamps are drained • Mountains and hills are cut away • to build roads • Roads & parking lots do not let water soak into the earth. Instead it washes away. Read pp. C 66 – C 67 to learn ways humans can help prevent unnecessary erosion.

  4. What does Bill Nye say? • Part 1 • Part 2 • Part 3

  5. Lesson 8 – Fast Changes on LandHurricanes, Tornadoes, Floods, Earthquakes, Volcanoes • Do the Explore Activity on pg. C 69, “How Do Gentle and Heavy Rains Change Earth’s Land?” • How do you think your results with the models compare to the real world? • ________________________________________________________________________________________________________________________________________________________________________________ • Listen to the CD for pages C 70 – 73, then match each term to its definition. _____ hurricane A. opening in the earth’s surface _____ tornado B. sudden movement in the earth’s surface _____ flood C. Huge flow of water over usually dry land _____earthquake D. Small powerful windstorm over land _____ volcano E. violent, storm with strong winds and heavy rain

  6. Read the definitions, then label the diagram below. Read the definitions, then label the diagram below. Read and discuss “A Mountain Blows Its Top” (Bright Surprises pp. 222 – 227), then label the diagram below.

  7. Watch “A Closer Look at Space: Earth”(Discovery Streaming) • Play “Mindjogger” • Team Members:____________________________________________________________________________________________________________________________ • Final Score • Test! Date: ___________________ *Use this packet as a study guide. See it online for youtube videos!

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