A MOUNTAIN MADE OF MOSTLY ROCK LAYERS (SQUEEZED TOGETHER)

A MOUNTAIN MADE BY HUGE TILTED BLOCKS

THE BREAKING DOWN OF ROCKS INTO SMALLER PIECES (NATURAL)

THE PICKING UP AND REMOVAL OF ROCK PARTICALS

A MIXTURE OF WEATHERED ROCK, DECAYED PLANTS AND ANIMAL MATTER

MATERIAL IM SOIL FORMED BY BREAKDOWN OF PLANT AND ANIMAL MATTER

ANY OF THE LAYERS OF SOIL FROM THE SURFACE TO THE BEDROCK BELOW

WATER THAT SOAKS INTO SOIL AND ROCK BY COLLECTING IN SPACE

THE DOWNHILL MOVEMENT OF EARTH MATERIAL CAUSED BY GRAVITY

THE DROPPING OFF OF SEDIMENT

A HUGE SHEET OF ICE AND SNOW THAT MOVES SLOWLY OVER LAND

A JUMBLE OF MANY SIZES OF SEDIMENT DEPOSITED BY A GLACIER

A DEPOSIT OF MANY SIZES OF SEDIMENT IN FRONT AND SIDES OF GLACIERS

A NATURALLY OCCURRING SOLID IN EARTH'S CRUST

A ROCK THAT FORMS WHEN HOT, LIQUID LAVA COOLS AND HARDENS

A ROCK THAT FORMS FROM PIECES OF OTHER ROCKS

A ROCK THAT FORMS FROM ANOTHER KIMD OF ROCK

ROCKS CONTINUALLY CHANGE FROM ONE KIND IMTO ANOTHER

A SERIES OF ROCK LAYERS THE BOTTOM IS OLD THE TOP IS YOUNG

THE AGE OF A ROCK AS COMPARED WITH ANOTHER ROCK

A LISTING OF EARTH'S ROCK LAYERS IN ORDER FROM OLD TO YOUNG

ANY TRACE, IMPRINT, OR REMAINS OF A LIVING THING IN EARTH'S CRUST

THE REMAINS OF A LIVING THING THAT LIVED FOR A SHORT PART OF EARTH

THE TIME IT TAKES FOR HALF THE MASS OF RADIOACTIVE ELEMENTS TO DECAY

THE AGE OF A ROCK IN YEARS DETERMINED BY MEASURING THE DECAY RATE

ONE OF THE FOUR LONG STRETCHES OF TIME IN EARTH'S HISTORY