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Wonderful Water. Chapter 10 S6E3-Students will recognize the significant role of water in earth processes. Where does water come from?. Water is located in the Oceans, Ice, Rivers and Lakes, Groundwater. Earth’s Water. Water is made from the elements Hydrogen and Oxygen
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Wonderful Water Chapter 10 S6E3-Students will recognize the significant role of water in earth processes
Where does water come from? • Water is located in the Oceans, Ice, Rivers and Lakes, Groundwater
Earth’s Water • Water is made from the elements Hydrogen and Oxygen • Almost all of the earth’s water is located in the ocean and considered saltwater (97.2%) • The rest of earth’s water is freshwater (2.8%) • The freshwater is located in glaciers, ice caps, lakes, streams, groundwater, and water vapor
Surface Water • This is water located on the surface of the land • Differs from the ocean water in salinity and type of crust (continental vs. ocean)
Rivers • Rivers are created from streams and tributaries flowing together • River systems are made by all of the rivers and its tributaries • River systems can join together to create a watershed • Watershed-land area that supplies water to a river system also can be called a drainage basin. Ex. Mississippi River Watershed • Watersheds are separated by ridges of land called a divide. Ex. Rocky Mountains
Ponds • Ponds form when water collects in hollows and low lying areas of land. • They are usually smaller and shallower than lakes • The water is shallow enough for sunlight to reach the bottom of the pond. • Many organisms and plants are found at the bottom of a pond. • Ponds may exist year-round or only during the spring.
Lakes • Lakes can be formed from a depression left behind by an ice sheet, plate movement, by volcanic lava, and by humans. • Lakes are typically deeper and bigger than ponds. • Sunlight is not able to reach the bottom of a deep lake. • Unlike a pond few organisms and plants are at the bottom of a lake. • When a lake is created for human use it is called a reservoir.
Wetlands • This is an area of land that is covered with water during part or all of the year • There are three common types of wetlands: marshes, swamps, and bogs. • These can be freshwater or saltwater bodies
Marsh-these are grassy areas usually covered by shallow water or a stream
Swamp-these look like flooded forest with trees and shrubs growing in the water
Bogs-These wetlands form in depressions left behind from ice sheets melting thousands of years ago Cranberry Bog Peat Moss Bog
Class Task • Read pages 314-315 • Draw the diagram of the water cycle on page 315 in your text. Label and explain the following processes: evaporation, condensation, precipitation (mention all 4 types)
Ticket out the door • How do rivers start? • How are ponds and lakes similar/different? • Describe the three types of wetlands.