Drew Perry

made of rock layers being folded

huge tilted blocks of rocks separated by fault

naturally breaking down the crust

Picking up and removing of rock partices

mixture of rock, air, humus, water, and living things

materail produced by breaking down plant and animal remains

series of horizontal layers in the soil

water that soaks into the soil 

Downward movement of Earth's materials caused by gravity 

The dropping off of sediment

Huge sheet of ice and snow

a jumble of many sizes of sediment deposited by glaciers

to deposit of many sizes of sediment

 a naturally occurring solid in Earth's crust with a define structure

a rock that forms from lava

formed from being pushed together

forms from a different rock

Rocks keep on changing and will not stop

idea that the oldest rock is at the bottom and the new rock is at the top

age of a rock compared to another 

list rock from oldest to newest

remains of a living thing in Earths crust

fossil of something that was widespread but lived for a sort time 

the time it takes for a rock to decay into another element

the age of a rock in years 

one of the four long stretches of history