SCIENCE

97 % of the water on earth is salt water. It cannot be drunk. Only 3 % of the water is fresh water. 

Surface Water- water found on the earth's surface. It is found in lakes, streams, ponds, marshes and creeks.

Ground Water- water found below the earth's surface. People or places  that get their water from wells depend on ground water.

They are interconnected. For example, in areas where the lakes and streams have disappeared, people depend on ground water.

Aquifers and Aquitards

Aquifers- Underground layers of permeable rock that store water and allow water to pass through.

Aquitards-Underground layers of low permeable rock that allows very little water to pass through.

Aquiclude- Impermeable rock that allows prevents the movement of water. 

 Today Experiments

Lab 1 Experiment

Gravel, silt and sand are an aquifer. They allow water to pass through.

Clay is an aquitard. It allows very little water.

Lab 2- Shallow Wells

Lab 3 How does water rise in columns?

Water rises in column of sand. 
Lab 4 What environment holds that water?

Grass allows water to return to the water table and replenish our groundwater.
Pavement does not allow water to return the water table.
Lab 5