Mammoth Cave
by Korren Pugh
1. time
1.1. millions of years
1.1.1. before the dinosaurs roamed the earth
2. limestone
2.1. soft
2.1.1. dissolves
2.1.1.1. creates the cave hollow
2.2. light/gray
2.2.1. smooth
2.2.1.1. made from shells and bones
3. water
3.1. snow
3.2. rain
3.3. surface river
3.4. surface streams
3.4.1. goes in holes & crack
4. rock
4.1. sandstone
4.1.1. hard rock
4.1.1.1. creates the outer walls of cave
4.1.1.1.1. the roof of rock on the top of the cave
4.1.2. red/brown/
4.1.2.1. made from layers of sand and silt
4.1.2.1.1. rough
5. plants and animals
5.1. decay
5.1.1. acid