Earth Science & Climate

How Does Iron Get Into Water?

What Looks Like Gold but Isn’t?

What Is the Hardness of Labradorite on the Mohs Scale?

What Is the Greatest Use of Groundwater?

Does Humid Air Sink or Rise? The Science Explained

Is Desert Sand the Same as Beach Sand?

How to Measure Wind Speed at Home

What Comes First: a Watch or a Warning?

What Visible Signs Indicate Extreme Turbulence in Thunderstorms?

What Causes a Solar Day to Be 24 Hours?

What Is La Garúa and Where Is It Found?

Is Garden Soil and Topsoil the Same Thing?

Does Mars Have Acid Rain or an Acidic Surface?

When Is It Summer at the South Pole?

Why Does Smoke Rise? The Science of Heat and Density

Why Are There So Many Earthquakes in South America?

What Is the Palouse and How Were Its Hills Formed?

How Are Quartz and Garnet Alike?

How Does Soil Develop? From Rock to Soil Horizons

How Deep Is the Snow on Mount Everest?