Earth Science & Climate

What Is a Caprock and How Does It Work?

How Much Daylight Do We Gain Each Day After December 21?

Which Mountain Range Is the Oldest in the World?

Is It Windier Than It Used to Be? What the Data Shows

What Color Is a Geode? From Natural to Dyed

How Rare Are Rainbows? From Common to Truly Unusual

Is Red Lightning Rare? The Science of Red Sprites

How Is Uranus Similar to Jupiter?

Can a Fire Tornado Happen? The Science of Fire Whirls

What Is Rain Measured In? Units and Tools Explained

What Is a Depression in Geography?

What Is a Tidal Stream and How Does It Work?

What Are White Caps and How Do They Form?

Is the Gobi Desert Hot or Cold?

Why Does Crater Lake Have an Island in It?

Where Is Limonite Found and How Does It Form?

What Does a White Ring Around the Moon Mean?

What Are the Shock Waves Caused by an Earthquake Called?

How Many Hours of Daylight in Alaska in July?

How Hard Is Granite on the Mohs Scale?