What kind of rock is "Granite"?

What kind of rock is "Basalt"?

occurs when rocks are broken down through chemical changes

TRUE OR FALSE: Weathering is the breaking down of rocks, soil, and minerals as well as wood and artificial materials.

If an earthquake begins to happen, the safest place to be is:

We cannot predict the exact moment a natural disaster will occur, but we do know...

___ are the shaking, rolling or sudden shock of the Earth's surface.

When living things breathe, they interact with which of Earth's spheres? 

Composed of all the liquid water on or near the earth

In which kind of rock do we usually find a fossil?

If you know the age of a rock, you know the relative age of the _________________ that was found inside.

If scientists found this fossil in a desert, what could they infer?

Earth is thought to be formed ______ years ago?

Describes a group of living things that are no longer living.

In which eon do we know there was no life?

When did the formation of the moon occur?

Select the correct sequence of the four eons of the Earth's history.

Microorganisms _________ into more complex organisms.

The first animals (living things) appeared on the oceans and seas.

......... was a supercontinent, which has separated to become the continents we know today.

The buildup of oxygen and the first eukaryotes occurred in the _______eon.

Which of the following is NOT a proposed cause of the mass extinctions in Earth's history?