Bodies of Water and Landforms. Bodies of Water The ocean is an interconnected body of salt water that covers about 71% of our planet. The ocean is an.

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Presentation transcript:

Bodies of Water and Landforms

Bodies of Water The ocean is an interconnected body of salt water that covers about 71% of our planet. The ocean is an interconnected body of salt water that covers about 71% of our planet. Geographers divide the ocean into four parts. Geographers divide the ocean into four parts.

Ocean Motion Salty water of the ocean circulates through three basic motions: currents, waves, and tides Salty water of the ocean circulates through three basic motions: currents, waves, and tides The motion of the ocean helps distribute heat on the planet. Winds blow over the ocean and are either heated or cooled by the water. When the winds eventually blow over the land, they moderate the temperature of the air over the land. (This affects climates) The motion of the ocean helps distribute heat on the planet. Winds blow over the ocean and are either heated or cooled by the water. When the winds eventually blow over the land, they moderate the temperature of the air over the land. (This affects climates)

Hydrologic Cycle Is the continuous circulation of water between the atmosphere, the oceans, and the earth. Is the continuous circulation of water between the atmosphere, the oceans, and the earth. Water evaporates into the atmosphere from the surface of the oceans, bodies of water, and from plants. The water exists in the atmosphere as vapor. Eventually the vapor cools, condenses, and falls to the earth as precipitation. The water soaks into the ground, evaporates to the atmosphere, or flows into rivers to be recycled. Water evaporates into the atmosphere from the surface of the oceans, bodies of water, and from plants. The water exists in the atmosphere as vapor. Eventually the vapor cools, condenses, and falls to the earth as precipitation. The water soaks into the ground, evaporates to the atmosphere, or flows into rivers to be recycled.

Lakes, Rivers, and Streams Lakes hold more than 95% of all the earth’s fresh water supply. Lakes hold more than 95% of all the earth’s fresh water supply. Rivers and streams flow through channels and move water to or from larger bodies of water. Rivers and streams connect into drainage systems that work like the branches of a tree. Rivers and streams flow through channels and move water to or from larger bodies of water. Rivers and streams connect into drainage systems that work like the branches of a tree.

Ground Water Some water on the surface of the earth is held by the soil, and some flows into the pores of the rock below the soil. Some water on the surface of the earth is held by the soil, and some flows into the pores of the rock below the soil. The water held in the pores of rock is called ground water The water held in the pores of rock is called ground water The level at which the rock is saturated marks the rim of the water table. (The water table can rise or fall depending on the amount of precipitation in the region and on the amount of water pumped out of the ground.) The level at which the rock is saturated marks the rim of the water table. (The water table can rise or fall depending on the amount of precipitation in the region and on the amount of water pumped out of the ground.)

Landforms Ocean Landforms: Continental shelf

The major geographic feature that separates one type of landform from another is relief. The major geographic feature that separates one type of landform from another is relief. Relief: is the difference in elevation of a landform from its lowest point to its highest point. Relief: is the difference in elevation of a landform from its lowest point to its highest point. There are four categories of relief: mountains, hills, plains, and plateaus. There are four categories of relief: mountains, hills, plains, and plateaus. Topography: is the combination of the surface shape and composition of the landforms and their distribution in a region. Topography: is the combination of the surface shape and composition of the landforms and their distribution in a region.