the carrying away of rocks and soil - What is erosion?, the breaking down of rocks and soil - What is weathering?, ice, gravity, wind and water - What 4 thing cause erosion?, temperature, water, wind, and plants - What 4 things cause weathering?, weathering - This is an example of what?, erosion - What is this an example of?, wind and water - _______ and ________ are powerful forces that change the Earth., levees - Walls called ________ help protect against flooding., Grand Canyon - The Colorado River carved the __________________ over millions of years., farmers - Erosion is not good for ____________.,

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