THE AIR LAYER SURROUNDING THE EARTH

A CYLINDRICAL CONTAINER WITH MEASURING LINES AND A LIP AT THE TOP

LARGE MASSES OF WATER VAPOR CONDENSING TOGETHER IN THE SKY

THE AMOUNT OF MATERIAL IN A GIVEN AREA

WATER SINKING INTO THE GROUND FOR STORAGE

THE STUDY OF EARTH

THE STUDY OF WATER

FORMED FROM MAGMA

THE LARGEST PLANET IN THE MILKY WAY

A METRIC UNIT USED TO MEASURE MASS

A METRIC UNIT USED TO MEASURE VOLUME

A METRIC UNIT USED TO MEASURE DISTANCE

THE NORTHERNMOST REGION OF THE EARTH; TOP OF THE AXIS

THE GAS THAT ALL ANIMALS NEED TO LIVE

RAIN, SNOW, SLEET, OR HAIL

A WHITE MINERAL USED IN ELECTRONICS

ONE ORBIT AROUND THE SUN; A YEAR

THE UNIVERSE AND EVERYTHING OUTSIDE OF EARTH

THE SEPARATE PLATES OF THE EARTH'S CRUST

ALL KNOWN PHYSICAL THINGS

THE PLANET CLOSEST TO EARTH IN SIZE