Front

Which fossil formation happens when an insect gets trapped in sticky tree sap, and the sap hardens to preserve the organism?

Back

amber

Front

Which type of fossil is formed when water deposits minerals to fill in a space, having the exact same shape as the original organism? Options: petrified, imprint, cast, mold.

Back

cast

Front

What type of fossil is formed when mud fills in the hollow spaces around something hard, such as a shell, and then hardens, resulting in a hollow space shaped exactly like the original object? Options: amber, mold, petrified, cast.

Back

mold

Front

This is a fossil in which minerals replace part or all of an organism, making it rock-like.

Back

petrified

Front

The remains or traces of prehistoric life found in sediment and sedimentary rocks.

Back

fossils

Front

What are widespread geographically, limited to a short span of geologic time, and occur in large numbers?

Back

index fossils

Front

The law that states "in a column of rock, older samples are found further down than younger samples"

Back

law of superposition

Front

A fossil that shows the activity of organisms

Back

trace fossil

Front

Which of the following is NOT a way a fossil can be preserved? Options: tar, amber, water, ice

Back

water