A layer in a soil profile is

A fossil that is useful for dating and correlating the strata in which it is found is

A type of fossilization where the organic material becomes dehydrated is

The nutrient-rich, organic material in soil is

Soil that is rich in minerals that have drained from the topsoil is

A fossil of a track, trail or burrow is

A large mass of igneous rock forced between or through layers of existing rock is

Sand particles are smaller than clay particles.

Water seeping downward through the horizons dissolves and carries minerals into lower horizons by the process called filtration.

Soft tissues decay much faster than hard substances, such as bone and teeth.

The A horizon is also known as topsoil.

Most of the species, past and present, on Earth have been found in the fossil record.

Old-earth scientists assume that fossils are older than the strata layer in which they are found.

Plants thrive best in soil that is slightly alkaline.

The main factor that determines the type of soil that is found in a region is the climate.

All of the following are types of soil particles except

Plant roots do not extend past the _____ horizon.

What two general conditions must met for an organism to form a fossil?

The most difficult types of unconformity for scientists to identify is

Which organism has a better opportunity of becoming a fossil after it dies?

Most fossils are found in _____ rock.

Which layer of soil contains the most humus?

Consider a cross section of rock with four layers labeled A-D, with A as the top layer and D as the deepest layer. According to the law of superposition, which layer is the oldest?

According to the _____, rock fragments found in nearby rock layers must be older than the rock layers that contain them.