Fossil+WS

Worksheet Fossils 12.2 Name ________________________________________________

Define these terms: Fossil

Index fossil

Fossil succession

++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++ What kind of rocks can contain fossils?

How are fossils formed?

What factors determines if an organism will become a fossil?

What is petrified wood?

What body parts make good fossils?

What kinds of organisms would it be difficult to form fossils?

How do geologists use index fossils?

How can geologists use fossils to interpret environments?