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Earth formed layers because

Before lava reaches the surface, the molten material is called

The S-wave is a

The Mohorovičić discontinuity separates the mantle from the outer core.

According to Bowen’s reaction series, which mineral crystallizes at the lowest temperature?

In a “normal” fault, the hanging wall moves downward relative to the foot wall.

Weathered materials move to lower elevations due only to

A solid, inorganic material of Earth that has both a known chemical composition and crystalline structure is called a

The oldest rocks are found in

Exfoliation of granite in the Sierra is an example of chemical weathering.