Science Jada Allen

a mountain that was made by hills squeezed together

a mountain that was formed by tilled rocks

the breaking down of rocks

the picking up or moving of rock

weathered rock mixture

the breaking down of living things

layers of soil from bedrock and down

water that soaks into the ground

water that has been stored underground

dropping off off of soil

a sheet of ice that moves

sizes of sediment dropped off by a glacier

sediment along the sides or front of a glacier

natural solid that has a definite structure

rock formed from lava

rock formed from other rocks squeezed together 

a rock that is changed by: heat pressure or chemical reactions

rocks changing from 1 to another

bottom layer of rock is the oldest and the top is the youngest

ages of rocks compared to other rocks

rock layers in order from oldest to youngest

ages of rocks compared to other rocks

remains of a living thing that lived for a short time in history

time it takes for radioactive element to decay half way

a rock's age in years

4 stretches of time in history