Earth's History, Fossils and Rocks Review

What does a geologist study?

• rocks and Earth's crust

• old people

• dinosaurs

• fossils

What is the fossil record?

• Random bones and things they find in places

• Record of everything living today

• History of life as preserved by all fossils found in sedimentary rock layers

A paleontologist studies fossil remains.

• True

• False

In which time period are we currently living?

• Cenozoic Era

• Paleozoic Era

• Precambrian Time

• Mesozoic Era

Jellyfish are one of the oldest species on Earth.  In what time period did they first appear?

• Cenozoic Era

• Precambrian Time

• Mesozoic Era

• Paleozoic Era

In what time period did Pangaea, the supercontinent, appear?

• Precambrian Time

• Paleozoic Era

• Cenozoic Era

• Mesozoic Era

Dinosaurs, small mammals, and birds are found in this time period.

• Precambrian Time

• Paleozoic Era

• Cenozoic Era

• Mesozoic Era

Which time period is the longest?

• Mesozoic Era

• Precambrian Time

• Cenozoic Era

• Paleozoic Era

What does "relative age" tell about the rock layers or fossils?

• It tells how old or young something is compared to the layers around it

• It tells the exact age

What does "absolute age" tell about a rock layer or fossil?

• It tells the exact age of something

• It tells how old or young something is compared to the layers around it