Geologic Time

Life was only found in oceans until the

The Triassic, Jurassic, and Cretaceous periods were all part of the ______ era.

Climate change can cause extinctions by

When herds of animals become separated by oceans, the species experiences

Which era was the Jurassic period in?

When looking at fossils, the ones found deeper in the ground are

Which explains why this picture is unrealistic?

Which is the correct order of the eras from oldest to youngest?

We are currently in the ___ epoch.

True or False: All geologic time periods lasted the same amount of years.

Which of these created the Appalachian Mountains?

The first people came to North America on a

Select the correct order of "Ages."

The last ice age began in the ____ epoch.

True or False: The earth has remained around the same temperature forever.

When the ocean level rises it floods the continents making

All the eras ended because of

Which of today's groups are dinosaurs most closely related to

True or False: We live in the Phanerozoic eon, Cenozoic era, Quaternary period, Holocene epoch.

The earth formed about ___ years ago.

The ocean level was ____ during the ice age.

Pangea began breaking apart in the ____ era.

Which of these is an example of a Mega Mammal

Towards the end of the last ice age came the large animals known as

True or False: Animals depend on the environment to survive.

The correct order of times from longest to shortest is

What was the name of the latest supercontinent?

It is hard to find fossils from Precambrian time because the organisms did not have

What do scientists use as the main source of information of past life?

Which of these "Ages" came first?