Chapter 9 - Fossils

Fossil copy of an organism.

• Cast
• Mold
• Trace
• Imprint

The impression in a rock left by an ancient organism.

• Cast
• Mold
• Trace
• Imprint

The preserved evidence of the activity of an ancient organism. (Tracks, eggs, dens, droppings).

• Cast
• Mold
• Imprint
• Trace

Scientist who studies fossils.

• Radiologist
• Dinologist
• Paleontologist
• Mineralogist

Numerical age of a rock or other object.

• Decay age
• Half-life
• Absolute Age
• Relative Age

The principle that in undisturbed rock layers, the oldest rocks are on the bottom.

• Carbon Film
• Superposition
• Uniformitarianism
• Age layering

Turned into stone by the replacement of tissue with minerals.

• Petrified
• Cast
• Trace
• Mold

Idea that conditions and organisms on Earth change in quick, violent events.

• Petrrified
• Superposition
• Catastrophism
• Uniformitarianism

The preserved remains or evidence of past living organisms.

• Fossil
• Paleontologist
• Carbon Film
• Artifact

Fossilized carbon outline that forms when pressure drives off the gases and liquids from a buried organism.

• Imprint
• Fossil Film
• Carbon Film
• Trace