unit 3

The hardened remains of a living thing that died long ago.

• fossil

• extinct

• endangered

• minerals

Which type of rock are most fossils found?

• sedimentary rock

• metamorphic rock

• igneous rock

• fossils

What replaces the wood of a once-living thing to form petrified wood?

• amber

• cast

• mold

• minerals

This type of fossil is tree sap hardened and replaced by minerals.

• Petrified wood

• Imprint

• Amber

• Mold

What type of fossil is pictured here?

• Mold fossil

• Trace fossil

• Cast fossil

• Body fossil

Animal footprints, worm tunnels, and the trail that a snake leaves behind are examples of...

• Petrified Fossils

• Trace Fossils

• Cast Fossils

• Carbonized Fossils

example on cast

• AMMONITE

• NUMMULITE

• TRILOBITE

• FERN

FERN fossil indicates that the environment is

• clear, warm water

• hot, rainy forest

• sea floor

NUMMULITES fossil indicates that the environment is

• clear, warm water

• hot, rainy forest

• sea floor

ALL OF THE FOLLOWING IS RIGHT ABOUT INDEX FOSSIL except

• EXTINCT

• WIDE GEOGRAPHICAL RANGE

• ENDANGERED

• LIVED FOR A SHORT PERIOD OF TIME