By: Logan

a mountain made up mostly of rock

a mountain made by huge tilted block of rock separated

the breaking down of rocks into small er

the picking up and removal of rock particles

a mixture of weathered rock decayed plant and animal matter, living things, air, and water

material in soil formed by the breakdown of plant and animal material

any of the layers of soil from the surface to the bedrock below

water that soaks into the soil and rock by collecting in spaces between rock particles

the downhill movement of earth material that has caused by gravtiy

the dropping off of sediment

a huge sheet of ice and snow that moves slowly over the land

a jumble of many sizes of sediment deposited by a glacier

a deposit of many sizes of sediment in front of or along the sides of a glacier

a naturally occurring solid in Earth's crust with a definite structure and compostion 

a rock that forms when hot, liquid lava cools and hardens into a solid 

a rock that forms from pieces of other rock that are squeezed or cemented together

a rock that forms from another kind of rock that is

rock continually changing from one kind into another  in a never-ending process

the idea that in a series of rock layers, the bottom layer is the oldest and th layer is the young

the age of a rock as compared with another rock

a listing of earth's rock layers in order from oldest to youngest 

any trace, imprint, or remains of a living thing preserved in earth's crust

the remains of a living thing that was widespread but lived for only a short part of earth's history 

the time it takes for half the mass of a radioactive element in a rock to break apart,