| aquifer |
a layer of rock, sand, or gravel that contains water from which wells and springs are supplied. |
| Arkansas |
a state in the south central United States. Its capital is Little Rock. (abbreviated: AR) |
| basalt |
a dark, heavy rock that is created by lava flowing from volcanoes. |
| bedrock |
the solid layer of rock in the earth's surface, found beneath soil, sand, or gravel. |
| blues |
(used with a singular or plural verb) a style of sad-sounding music with roots in African American folk music. Jazz and rock music developed from the blues. [1/2 definitions] |
| boulder |
a large, rounded rock. |
| cliff |
a high, steep face of rock or earth. |
| cradle |
to hold or rock in or as in a cradle. [1/4 definitions] |
| dynamite |
a strong explosive. Dynamite has many uses, including blasting through rock to make roads, tunnels, and mines. [1/3 definitions] |
| erupt |
of a volcano, to break open and send out hot melted rock and ash. [1/2 definitions] |
| fossil |
the remains or trace of a living animal or plant from a long time ago. Fossils are found embedded in earth or rock. |
| jam1 |
to play or improvise jazz or rock-'n'-roll music with others. [1/8 definitions] |
| lava |
hot, melted rock that erupts from a volcano. [2 definitions] |
| ledge |
a shelf of rock coming out from a wall or cliff. [1/2 definitions] |
| limestone |
a rock formed mostly from shells and other animal remains. Limestone is used in building and in making cement, lime, and carbon dioxide. |
| lode |
a deposit of a mineral that fills a crack in an area of rock. |
| lodestone |
a rock that acts as a magnet and attracts iron. |
| magma |
hot, liquid matter beneath the earth's surface that cools to form igneous rock. Magma that reaches the earth's surface, as when a volcano erupts, is called lava. |
| metamorphic |
showing or related to changes in the structure of rock. [1/2 definitions] |
| meteorite |
a piece of rock from outer space that has landed on Earth. |
| ore |
a rock or mineral from which a metal or other useful substance can be removed. |