Earth Science & Climate

What Is the Official Start of Fall?

What Is the Nighttime Temperature on Mercury?

How to Tell If a Rock Is a Crystal With a Flashlight

Is Quartz Porous or Nonporous?

What Is the Difference Between Orbit and Rotation?

How Much Water Falls Back to Earth as Rain?

Are There Tornadoes in North Dakota?

What Does the 4th of July Look Like From Space?

Is the Dead Sea the Saltiest Sea in the World?

Is Haleakalā Taller Than Mount Everest?

How Much Does a Cubic Yard of Soil Cost?

What Are the Main Causes of River Flooding?

Where Is Metal Found in Nature?

How Long Does It Take Saturn to Revolve Around the Sun?

Why Is Solar Energy Better Than Wind?

What Does Polymineralic Mean in Geology?

What Does the Barometric Pressure Mean?

What Does a Solar Eclipse Mean Scientifically and Culturally?

How Much Is a Knot of Wind?

Does a Solar Maximum Affect Earth’s Temperature?