Earth Science & Climate

What Is the Evening Star and Why Is It Not a Star?

How Are Minerals Identified? From Visual to Chemical Tests

Why Is Earth’s Continental Crust Lower in Density Than Seafloor Crust?

How to Read a Liquid Barometer for Accurate Results

A Map of Where Diamonds Are Found Around the World

What Time Does Dew Dry Off Grass?

How Does the Composition of a Comet Compare With That of the Sun?

What Is a Weather Report and How Is It Made?

When Did Mount Lassen Last Erupt?

In Which Country Did Blood Rain Actually Fall?

Does Wyoming Get Tornadoes? Frequency, Season, and Strength

What to Do With a Steep Hill in Your Backyard

How Has the Sun Changed Global Temperatures Over the Past Millennium?

How Rare Is Calcite? From Common Rock to Rare Specimen

What Is a Half Moon Called? The First and Last Quarters

Why Are Weather Apps So Inaccurate?

Where Do You Find Obsidian? Major Volcanic Regions

What Is the Most Powerful Thing in Space?

What Is Sodium Bentonite and How Does It Work?

Where to Find Fire Agate and How to Identify It