Fossils

Preserved _______ or traces of animals, plants, and other organisms from the _______.

• Preserved fossils or traces of animals, plants, and other organisms from the past.

• Preserved artifacts or traces of animals, plants, and other organisms from the future.

• Preserved remains or traces of animals, plants, and other organisms from the present.

Found in _______ rock layers.

• rock layers

• water layers

• sand layers

Condition for forming fossils: Layers of ______ build up over the organism.

• SEDIMENT

• WATER

• ICE

Fossils and the rock layer in which they are found are approximately the ______.

• SAME AGE

• DIFFERENT AGE

• OLDER THAN THE ROCK LAYER

They can say one fossil is older than another because of the ______ in which it was found.

• STRATA

• AGE

• LOCATION

Carbonization in the context of fossilization is a process where:

• organic material is preserved as a thin film of carbon.

• minerals replace the original material.

• organisms are trapped in amber.

Trace fossils in the context of fossilization are:

• remains of the actual organism

• evidence of the activity of organisms

• fossils formed by mineral replacement

Happens when water _______ the original solid material and replaces them with mineral matter such as calcite, silica, pyrite, and hematite.

• DISSOLVES

• EVAPORATES

• FREEZES

Groundwater carries _______ into the pores and cavities of bone, wood, or shells.

• DISSOLVED MINERALS

• SAND PARTICLES

• ORGANIC MATTER

MOLD – organism dies and there is ___ filling of the cavity with minerals.

• NO

• PARTIAL

• COMPLETE