A compound is a substance that contains two or more elements close elementA pure substance that is made from only one type ... rocks. Sometimes one metamorphic rock can be turned into a different ...

Uncovering the fossil record requires scientists with many different areas of expertise ... There are three main types of rock: igneous rock, metamorphic rock, and sedimentary rock. Almost all fossils ...

There are three main rock types: igneous, sedimentary and metamorphic. These rocks are made of minerals that all have ...