Earth Science & Climate

How to Identify Cinnabar: Color, Streak, and Tests

Is Frost Wedging Mechanical or Chemical Weathering?

When Was the Tertiary Period?

How Long Does It Take for a Satellite to Orbit the Earth?

Where Do Whirlpools Occur and How Do They Form?

What Evidence Supports the Theory of Seafloor Spreading?

What Happens When the Sun and Moon Align?

What Is QPF in Weather and How Is It Calculated?

When Does It Snow in West Virginia?

How Long Does It Take Rain Water to Reach a Well?

Can You See the Northern Lights in Illinois?

How Was Neptune Made? Theories of Its Formation

How Long Is a Sidereal Year?

How Many Days Are in a Light Year?

What Type of Rock Layer Is Easy to Date?

When Does Halley’s Comet Come Back?

When Is Hurricane Season in the South Pacific?

Why Does the Ocean Have Waves?

What Minerals Are in Spring Water?

What Is an Icicle and How Does One Form?