Earth's History Standard 1,2,& 3.

Age of an event or object compared with other events of objects is called its

Humans first appeared 

Precambrian time consists of

Which label represents the largest amount of time?

What event marks the end of each geologic era?

Further splitting/moving of continents to current positions is a geologic event of which era?

An index fossil

Which best describes how Earth changes over time?

What protects the planet from many of the meteors that enter it?

The first period of the Paleozoic Era is the

Body of prehistoric animal with bones, muscle, skin, and hair might be preserved in

Which cause of extinction is natural?

Which layer of sedimentary rock is the oldest?

Fossils are traces, remains, or evidence of

The earliest living things lived

Which fossils is the youngest?

Rock fossils form in

How do scientists know what dinosaurs looked like?

What would be the best example of an impact catastrophe?

Ferns, cone-bearing plants, and mosses are all plants of the _______ era.

Precambrian time refers to 

Some extinctions have a positive outcome.

During the Mesozoic era, climate changes occurred due to plate tectonics & the movement of___.

The formation of the super continent of Pangaea was a geologic event in which era?

Which is the correct order of eras from earliest to most recent?

What is the best statement of law of superposition?

The oldest layer in an undisturbed sedimentary bed is usually

Which is the correct order of time units from smallest to largest?

The break up of Pangaea was a geologic event of which era?

In order to form a cast fossil, minerals must fill a 

Things that lived in the Paleozoic era include

Which era did ice ages cause the climate to be cooler as ice sheets & glaciers covered Earth?

What is the difference between a mold fossil & cast fossil?

Reptiles were dominant animals of what era?

By studying rocks & fossils, Scientists can infer

When did geologic time scale begin?

By studying layers of sedimentary rock, scientist determine the

Which era ended with mass extinction of the dinosaurs ?

How many members of a species remain when a mass extinction occurs?

List the layers in order from oldest to youngest

What is the most likely cause of the extinction of dinosaurs?

Which geologic time era grows a little larger each day?

Mass extinction of dinosaurs happened at the end of the Mesozoic Era due to 

Diverse life-forms, clues to past climate, & evidence of extinctions can all be found in

Which part of an ancient reptile would you expect to see in a rock fossil?