sedimentary rocks and fossils

Front

What are sedimentary rocks?

Back

Rocks formed from particles in the environment that settle to form layers.

Front

How do fossils form?

Back

Most fossils form from the bones, horns, and teeth of an animal.

Front

What is weathering?

Back

The process that changes the size and shape of rocks.

Front

What is the oldest layer in sedimentary rock?

Back

The bottom layer is the oldest.

Front

What are the three main types of rocks?

Back

Igneous, sedimentary, and metamorphic.

Front

What is a fossil?

Back

The preserved remains or traces of a once-living organism.

Front

How do sedimentary rocks form?

Back

They form in layers of sediments stacked on top of each other.

Front

What is erosion?

Back

The process by which soil and rock are removed from the Earth's surface.

Front

What is the difference between weathering and erosion?

Back

Weathering breaks down rocks; erosion moves them.

Front

What are sediments?

Back

Small particles of rock, minerals, or organic material.