i think it's GLacier...
Or it could be you're thinking of an avalanche: it's what happens when a large mass of snow is dislodged from a mountain slope or peak and cascades downward with great speed and force.
Deserts.
We call this a glacier. Some do not move but most do.
They are very large and very gassy. When you look at one of them, you are looking at a lot of gas, a very thick atmosphere.
Snow is a good to make snowmans with snow and also it is very cold touching it if you don't have snow mittens or gloves if you don't you'll freeze!
Clouds that bring snow are usually dense, low-lying and have a darker gray appearance. They may also appear to be thick and heavy, with the potential to cover the sky completely. These clouds can be accompanied by a drop in temperature and increased humidity as they move in.
An avalanche, usally known to be extremely dangerous.
very fast
A very large hill is typically referred to as a mountain.
Because ice is very slippery and so you can slide while on concrete you wont be a be able to slide because its not slippery.
They can help shovel if their parents say it is OK. Shoveling snow in large amounts is very hard work.
Igloos are built from large bricks cut from compacted snow, snow is easy to cut, and light-weight, it is easy to trim and form into the Igloo shape. Ice is very hard, very heavy and not easy to build with.
Expressing the result of a very large number or even a very small number is what we call scientific notation.
Snowy, Spot, Crouchy, Leah, Lee, Lenny, Leon, Leonard, and Pia are all very nice names for a Snow Leopard.
very very very fragile if you have butter fingers dont get a slide phone
All weather tires are not required by law but it is a very important idea if you plan to drive through snow. I would also recommend Snow Chains if your in a large snow area.
Deserts.
A very large area of sand is typically referred to as a desert or a dune field.