Moving Water Shapes the Land

1. Moving Water Shapes the Land What does moving water have to do with landforms? Glacial melt water streams flowing off the Kaskawulsh glacier

2. Water covers almost three-fourths of the earth’s surface. • Water has been around for billions of years. • Water circulates up, down and around among the ocean, atmosphere and land as a continuous process called the water cycle. • As water moves over and through the landscape, it helps to shape landforms. How do you think water movement has affected this land? ---

3. The Water Cycle Evaporation The sun heats up the water on land and in the oceans, lakes and seas. Water near the surface (liquid) changes into water vapor. Run off The precipitation gathers in streams and rivers and flows and becomes run off, flowing back down to the oceans, seas and lakes where the cycle begins again. Condensation The water vapor cools and condenses. Forming droplets in the atmosphere. Precipitation These droplets gather becoming clouds, and then fall down from the sky as rain, sleet, or snow.

5. As water moves from higher to lower ground, it weathers rock. Turning it from rock to soil. • Water moving from high ground to low ground is called run off. • Run off also happens when snow melts in the spring. • Run off can cut groves into the soil and rock. Run Off

6. Ground water • After rain falls, some of the water seeps into the ground. This water continues to trickle through the solid until it reaches solid rock. • When it meets solid rock, it joins other water in the ground. These pools of water feed wells and deep tree roots.

7. The Hydrologic Cycle…. A.K.A The Water Cycle Transpiration-the process in which some water within plants evaporates into the atmosphere. Surface Runoff- rain, snow melt, or other water that flows in surface streams, rivers or canals. Accumulation-the process in which water pools in large bodies (oceans, seas and lakes). Subsurface Runoff- rain, snow melt of other water that flows in underground streams, drains or sewers.