glacier
Depending on when it was formed, the size and speed it is moving it could be either an Avalanche or Glacier. If it is an incredibly old, slow moving, large, ice mass it is likely a Glacier; however if it is a quickly moving, small (relatively), ice mass it is an Avalanche.
A "slow moving river of ice" is a glacier. A slow moving chunk of ice floating down a river is a "floe".
A slow moving body of ice is a glacier.
glacier
A glacier
The term for a slowly moving mass of ice is a glacier.
Ice melts because the atoms around the ice are moving faster (because they are warmer). So the faster moving atoms bump into the slow ones (the ice), and make the slow particles move faster a little bit at a time. and the slow particles make the fast ones slow down a little bit. Until all particles are moving the same speed. this is how ice melts.
a glacier
A glacier is an ice mass formed from years of accumulated snow that may be moving slowly.
An Alpine Glacier.
ice is water. its just that the molecules of water slow down the vibrations that are moving and they turn into a solid, and what you get is Ice