Christina Rhodes

What Is the Difference Between Intrusive and Extrusive Igneous Rocks?

What Did Earth Look Like During the Hadean Eon?

What Is the Difference Between Contact and Regional Metamorphism?

How Does the Amount of Precipitation Affect Weathering?

How Did Fossils Support Wegener’s Pangaea Hypothesis?

What Did the Earth Look Like During the Precambrian Era?

What Is Nutation? The Science of Earth’s Wobble

What Marked the End of the Precambrian Period?

How Are Index Fossils Used to Date Rock Layers?

When Are Fossils Used to Find the Absolute Age of Rocks?

What Happened on Earth 300 Million Years Ago?

What Is the Earth’s Core Made Of and How Do We Know?

What Evidence Did Wegener Use for Continental Drift Theory?

Banded Iron Formations: How They Formed and Why They Matter

What Is a Clast and Why Is It Geologically Important?

Mesoproterozoic Eon: The Rise of Complex Life

What Happened During the Proterozoic Eon?

What Is the Long-Term Carbon Cycle?

What Was the Neoarchean Era and Why Is It Important?

The Mantle: What It Is and Its Role in Earth’s Processes