Learn about the different stages of the Earth's water cycle, and about processes involving water, including runoff, infiltration, and the differences between hard and soft water.

This lesson will introduce the phase changes that occur at the boiling, freezing, and melting points. It is 2 of 4 in the series titled "Boiling, Freezing, Melting Point."

This lesson will introduce the phase changes that occur at the boiling, freezing, and melting points. It is 4 of 4 in the series titled "Boiling, Freezing, Melting Point."

This lesson will introduce the phase changes that occur at the boiling, freezing, and melting points. It is 1 of 4 in the series titled "Boiling, Freezing, Melting Point."

Informational weather site highlights The Water Cycle. Discover how it works and learn more about evaporation and condensation.

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

Students carry out a number of activities that demonstrate the concepts of evaporation, condensation, precipitation, and soil moisture and runoff. Then students construct a terrarium as a way to observe the water cycle. Immediately...

[Free Registration/Login may be required to access all resource tools.] Discusses water and where it occurs on Earth, gives an overview of the water cycle, and explains how the ocean is an integral part of the water cycle and is...

Animation and text explain the water--or hydrologic--cycle, which is the process that water undergoes in nature.

Read and fill in the blanks of this passage explaining the water cycle. Each blank has a dropdown menu with choices. When you finish, click CHECK MY ANSWERS. If you pick a wrong answer, the right answer will be displayed along with your...

Learn about the movement of water from Earth's surface to the atmosphere with this site. Site describes the water cycle in words and with a diagram. Also explored on the page is the distribution of Earth's global water supply.

Science experiment that simulates how clouds are formed. Includes full list of materials, procedures, and scientific explanation of what must happen in the atmosphere for cloud formation to occur.

Excellent discussion and illustration of the water cycle.

Excellent discussion and illustration of the water cycle. Explained in an easy to understand format.

A lesson plan to show students' understanding of the water cycle through illustrations, and their ability to write creatively about it.

This is an introductory lesson plan on the water cycle. The internet will be used to help teach the cycle. The student will end the lesson plan by making his/her own water cycle for observation.This lesson plan was created as a result of...

How does energy charge when evaporation is reversed? and What powers a hurricane? are explored in this module.

In this experiment, you'll make your own cloud in a jar, and get to test the conditions that are required to make a cloud form.

Educational resource invites users to understand the properties of water by first examining what water is and how we use it and then leads users to further information on the three states that water can exist.

In this investigation, students will observe and learn about the different types of clouds and be able to explain in their own words how clouds are formed. They will also observe an experiment illustrating how clouds form.

The paths that water can take through Earth's systems are many and complex. Examine the following diagram from NASA depicting the water cycle. Studying the water cycle is important because changes in the water cycle affect all parts of...

A brief look at cloud formation. Find out what the main process behind cloud formation is and what clouds are composed of. Click links to learn how to create a cloud and also to find out about the different kinds of clouds.

Discover the processes of the water cycle and learn about its effect on weather and climate.

A discussion from the Oklahoma Climatological Survey of the thermal factors effecting the movement of air masses in the atmosphere. Numerous topics such as methods of heat transfer, latent heat, phase changes (including sublimation and...