From the Beginning
The rapid expansion that began the universe.
What is the Big Bang?
An opening where magma erupts from within Earth.
A rapid burst of diverse life forms about 540 million years ago.
What was the Cambrian Explosion?
The third planet from the Sun, where life exists.
What is Earth?
The movement of the plates on Earth's crust.
What is plate tectonics?
An extinct armored arthropod with a segmented body.
What was a trilobite?
A Mars sized body that likely collided with a early Earth.
What was Theia?
A time when Earth was covered in ice.
What was Snowball Earth?
Preserved remains or signs of ancient organisms.
What are fossils?
Ancient microbes that produced oxygen via photosynthesis.
What were cyanobacteria?
Cells with a nucleus and complex structures.
What are eukaryotes?
A prehistoric fish with armored plates covering its head and body.
What was a placoderm?