Students are introduced to some essential meteorology concepts so they more fully understand the impact of meteorological activity on air pollution control and prevention. First, they develop an understanding of the magnitude and...

A sling psychrometer is used to measure humidity levels. Read about its history, how it works, its design, and how to use it. Includes a relative humidity table.

An interactive weather maker allows students to manipulate temperature and humidity and to view the type of weather that results.

Discusses research done in the American Midwest showing that farming practices that increase humidity levels possibly could have an impact on the weather, causing a reduction in the average temperature and an increase in the amount of...

Lesson explore sensors focusing on ones that measure humidity. Students work in teams to design, build, test, and evaluate a hygrometer which was made out of everyday materials to measure humidity levels.

Thunderstorms only happen under certain conditions. See if you can choose the right mix of temperatures and humidity to create a big thunderstorm.

A clipart illustration by Phillip Martin titled "Relative Humidity."

Cloud formation results when warm, humid air rises and cools, causing the water vapor in the air to condense and form clouds. In this lesson, students will conduct an activity that demonstrates how this occurs.This lesson plan was...

Find out what factors contribute towards a climate.

The National Oceanic and Atmospheric Administration provides a photo library of severe weather formations and the instruments that measure them. Here you can find a photograph of a solar-powered Surface Automated Measurement (SAM) site....

In simple terms, density is the mass of anything - including air - divided by the volume it occupies. In the metric system, which scientists use, we usually measure density in terms of kilograms per cubic meter. The air's density depends...