Boulder is a size descriptor. Others are sand, gravel, cobble. Monolith would be the largest. They are made of rock.
Eat a lot of cheese; that usually works for me!
Boulders that have been carried by a glacier have a couple names, but most commonly they are referred to as glacial boulders or erratics. If you're interested in learning more about glacial boulders, the Iowa Department of Natural Resources has a pretty good article about them; as Iowa and most of the American Midwest were covered by glaciers during the last Ice Age, glacial boulders are fairly common there. http://www.igsb.uiowa.edu/browse/boulders/boulders.htm
Mechanical weathering
Moraines are made up of clasts ranging from very fine (clay) up to very large (boulders) and the intermediate clast sizes (silt, sand, gravel and cobbles)
exfoliation
a road is mostly made out of tar.
Eat a lot of cheese; that usually works for me!
Yes, coarse sedimentary rock can be made up of pebbles or boulders. Coarse sedimentary rocks are formed from the accumulation and cementation of larger grains, such as pebbles and boulders, that are transported by water, ice, or wind. These larger grains are typically found in rocks like conglomerate or breccia.
A boulder is a large rock and can be made up of many different things, including sandstone.
boulders
New Zealand is the place that has huge round boulders along the beach. These boulders are called the Moeraki Boulders.
The boulders fell from the mountains with a crash! The big boulders hit are car in Indiana.
Moeraki Boulders
Moraine is the accumulation of debris, boulders, stones, etc. carried and deposited by a glacier.
Hoopoes nest in tree-holes, cliffs, boulders, and other cavities.
Boulders
Alchemy Boulders was created in 1996.