GLACIERS IS A HUGE ROCK MADE OUT OF ICE PLAIN

1. COVERED WITH A COAT OF SNOW

2. CAN'T MELT ENLESS IT IS VERY HOT

CAN BE AS TALL AND LONG AS 20,320

FIRST, SNOW DROPS ONTO THE ICE.

NEXT, THE SNOW IS SO HEAVY THAT IT TURNS INTO A SNOWPILE.

THEN, THE SNOW MELTS AND THE ICE GROWS BIGGER.

FINALLY, THE ICE RISES AND TURNS INTO A GLACIER.

NATIONAL PARK, MOUNT MCKINLEY AND MOUNT RAINIER