Earth Science & Climate

How Hard Is Turquoise on the Mohs Scale?

How Big Is Neptune Compared to the Other Planets?

How Were the Hawaiian Islands Formed by Plate Tectonics?

Who Picks Hurricane Names and How Are They Chosen?

What Is a Parallel on a Map?

How Rare Are Purple Diamonds?

When Is the First Day of Spring in the United States?

How to Identify Moonstone: Key Signs and Tests

Does Betelgeuse Have Planets? What We Know

What Are the Most Famous Tsunamis in History?

What Type of Plate Boundary Makes Earthquakes?

If Clouds Move Against the Wind, Will Rain Follow?

Where Can I Find Lithium? From Mines to Products

What Is Sphalerite? Identifying the Zinc Ore

Are There Tornadoes in Las Vegas?

What Is in the Moon’s Core? Composition and Structure

How to Read a Soil Map and Interpret the Data

What Type of Volcano Is Cerro Negro?

How Does a Bubbler Drainage System Work?

Where Would You Most Likely Find a Wadi?