An area of land where all water flows to a central river and then eventually to the ocean But how does it know which way to go? Divide = high ridge of land from which water will flow in different directions (from high elevation to low)
Which Drainage Basin are we in? Catawba River Wateree River Santee River Atlantic Ocean!
Watershed Activity: Create your group’s village on the white piece of paper showing the following things: − Black marker: main streets and buildings − Blue marker: rivers or creeks − Green marker: grass and trees − Brown marker: exposed soil that could erode − Red marker: pollutants from cars, people, and animals Crumple up piece of paper & open to represent your village Add water source with mist of water!
Watershed Discussion: If this is a model of a watershed… − What do the creases in the paper represent? − What happens to the ink from the markers as the water flows? − Where will the water eventually go? − Where will the ink eventually go? Highest or lowest place? − Are there any problems you see with this watershed?
DOES ALL OF THIS WATER THAT DRAINS AWAY ALWAYS STAY ON THE SURFACE?
Groundwater: − is water that soaks into the soil and collects underground Water Table: - the top layer of ground water
Groundwater: Through ___________, water soaks into the ground, but groundwater can only occur closer to the Earth’s surface. Why?
Groundwater occurs in the layers of the Earth where there are spaces between the rock. Permeable: A substance that allows water to flow through it loose rock & sediment Impermeable: A substance that does NOT allow water to flow through it solid rock
Groundwater comes up! Spring: − Water that naturally flows out of the ground because it is below the water table Well: − A hole in the ground that reaches down to the groundwater in aquifers (Can be natural or synthetic)
Tie it together! WATER CYCLE tells us where water comes from. Today, we discussed where water goes. Dear Diary… – Imagine you are a water molecule and you are writing in your diary. Explain the journey you take through the water cycle and what is happening to you along the way. Must include watershed, groundwater, and aquifer AND the steps of the water cycle. Example: A Drop’s Life... http://www.youtube.com/watch?v=kG- EPlATlv4&feature=related http://www.youtube.com/watch?v=kG- EPlATlv4&feature=related