1. Ground Water Chemical Weathering
Jade,McKaylin,Atavia,Hayley

2. Key terms
Cavern
A large cave that may consist of many smaller connecting chambers.
Sinkhole
a circular depression that forms at the surface when rock dissolves, sediment is removed or when caves or mines collapse.
Karst topography
a chemical weathering of limestone or other soluble rock by ground water

3. Natural Bridges
When a roof of a cavern collapses in several places, a mild straight line form and makes a Natural Bridge of the un broken rock.
When it first forms it will be thick but as time goes on it erodes and becomes thinner

4. Caverns
A large cave that may consist of many smaller connecting chambers
Rocks that have mineral calcite are more vulnerable to chemical weathering

5. Stalactites and Stalagmites
Water containing dissolved calcite drips from the ceiling of a limestone cavern.When the calcite builds up it forms a cone shaped deposit.
Stalagmites
Drops of water fall on the cavern floor then the calcite builds up to form and upward pointing cone.

6. Sinkhole
A circular depression that forms when rock dissolves, when over lane sediment fills an existing cavity, or when the roof of an underground cavern or mine collapses.
Most form from dissolving of rocks
When water tables are low sinkholes form to fill the un full caverns

7. Karst Topography
Common features of a karst topography includes many closed spaced sinkholes and caverns.
Karst Topography Forms in regions where the climate is humid and where the limestone formations exists at or near the surface.
Karst topography can also form in relatively dry regions, too.

8. What is the difference between stalagmites and stalactites?
Questions
How does a cavern form?
What is the difference between stalagmites and stalactites?
Compare a sinkhole and a cavern.
What do sinkholes and natural bridges have in common?