Using the wet bulb-dry bulb method, students will compare the temperature of a dry temperature sensor and a wet temperature sensor. By comparing the temperatures, students will be able to find the relative humidity. After completing the...

Learn about the relationship between vapor pressure of water and capacity of air to hold water vapor, the relationship between relative humidity and partial pressure of water vapor in the air, and how to calculate vapor density,...

Describes what relative humidity is, shows how it is calculated, and how it is related to evaporation and condensation.

A college textbook section that explores vapor pressure, relative humidity, and dew point. Section reviews how to calculate values like percent relative humidity. Section also includes problems and questions for the students to answer to...

By the end of this section, you will be able to explain the relationship between vapor pressure of water and the capacity of air to hold water vapor, explain the relationship between relative humidity and partial pressure of water vapor...

Describes what relative humidity is and how it can be determined. Discusses effect on organic fibers.

Have you ever walked outside in the summer and the felt sticky? You are experiencing humidity. Learn more about humidity, relative humidity, and dew point temperature on this website.

Students use a sponge and water model to explore the concept of relative humidity and create a percent scale.

Use this site to find out how humidity works and perform some activities related to humidity.

The amount of water vapor in the air is called humidity.

This site provides a discussion of dew point and relative humidity, containing formulas that look at connections between temperature, humidity, and dew point.

This article is a guide to understanding humidity and related weather concepts. Includes helpful definitions of multiple terms.

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

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.

Describes what dew point is and how it relates to moisture content of the air. Also explains condensation and relative humidity.

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...

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.

Explains how dew point is used to show the amount of moisture in the air. Gives an activity for measuring the dew point at home.

Conduct an experiment and investigate how air temperature, relative humidity, wind speed, solar radiation and precipitation affect evaporation. Graph the data collected during the experiment.

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

Students are guided in how to build their own weather station that will measure temperature, humidity, precipitation, atmospheric pressure, and wind direction and speed.

For this experiment, students work to find the dew point temperature in their classroom, or the temperature at which water would condense. Includes questions for students to respond to online. Requires free registration in order to save...

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....

The poet Carl Sandburg wrote, "The fog comes on little cat feet". In this weather science fair project, you'll discover why this beautiful, quiet creeper appears on some days, and not on others. If you are fascinated by fog and weather...