Grayson County TXGenWeb
Teacher Resources









SCIENCE

Water research
       
Reading List

Natural Water Sources
Grayson County waterways
Map

Mineral Water
     Mineral Water
     Jacob's Well, Denison, Texas
     
Big Mineral Springs

Artesian Wells :
An artesian well is a pumpless water source that uses pipes to allow underground water that is under pressure to rise to the surface. This type of well seems to defy gravity because the pressure that builds up between layers of rock gets relieved when the water finds a path to the open air. In addition, the water has been naturally filtered because it passes through porous rock as it seeps into the Earth to reach the aquifer, which is the underground water source. For centuries, people have drilled artesian wells to drink filtered water that doesn't need to be manually or mechanically hauled up from the depths.  ("What is an Artesian Well".  Wisegeek : clear answers for common questions, 13 July 2013)

     Diagram - Water flows from a higher elevation through a porous, rocky surface and rises to the surface because of pressure between the rock layers.


 
Flowing Wells

Rivers and Ferries
   
Red River
   
Colbert's Ferry
    Red River Ferry

Springs
    Springs of Grayson County

Creeks
     Shannon Creek
    Map


Bridges over Grayson County Creeks




Man-Made Water Sources
     Lake Texoma
     Lake Waterloo
     Denison Dam

     Water wells
        Hand Dug Well

    Windmills

    Spring House

    Culverts



TEACHER RESOURCES

Building Wind Turbines : An Engineering Lab
Create a Pinwheel Model
How to Make a Windmill From Recycled Materials




WORKSHEETS

Settlers' Needs


Materials are for classroom use only.

TEACHER RESOURCES
 
 

Grayson County Index
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by Elaine Nall Bay