Water Science School

Water Basics

"Water, Water, Everywhere...."
You've heard the phrase, and for water, it really is true. Earth's water is (almost) everywhere: above the Earth in the air and clouds, on the surface of the Earth in rivers, oceans, ice, plants, in living organisms, and inside the Earth in the top few miles of the ground. The Water Science School allows you to explore all the basics about water.

All Water Basics Topics

All Water Basics Topics

View a list of all of our science topics about the basics of water.

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The Water Cycle

The Water Cycle

The natural water cycle describes where water is and how it moves around.

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Filter Total Items: 40
Date published: May 23, 2019
Status: Completed

What is Hydrology?

"Hydro" comes from the Greek word for... water. Hydrology is the study of water and hydrologists are scientists who study water. Read on to learn more.

Contacts: Ask USGS
Attribution: Water Resources
Date published: May 23, 2019
Status: Completed

Water in Space: How Does Water Behave in Outer Space?

Does water still feel wet in outer space? Does it float or does it fall? With a little help from our friends at NASA we will help you understand exactly how water behaves in outer space. Continue reading to learn more.

Contacts: Ask USGS
Date published: May 22, 2019
Status: Completed

The Water in You: Water and the Human Body

Water is indeed essential for all life on, in, and above the Earth. This is important to you because you are made up mostly of water. Find out what water does for the human body.

Contacts: Ask USGS
Date published: April 2, 2019
Status: Completed

Water Q&A: Why can't I rinse the soap off my hands

Water Quality Q&A:
Why can't I rinse the soap off my hands?

Contacts: Ask USGS
Date published: April 2, 2019
Status: Completed

La Ciencia del Agua para Escuelas

La Ciencia del Agua para Escuelas

Contacts: Ask USGS
Date published: March 12, 2019
Status: Completed

Water Basics Information by Topic

Water is everywhere, from huge oceans to invisible water molecules making up water vapor in the air. But how much water is there on, in, above, and below the Earth, and where is it located? Use the topics below to explore the basic concepts and facts about water.

Contacts: Ask USGS
Date published: March 12, 2019
Status: Completed

Water Basics Photo Gallery

Learn about water science using pictures.

Contacts: Ask USGS
Date published: January 17, 2019
Status: Completed

Где находятся воды Земли? Where is Earth's Water? (Russian)

Где находятся воды Земли?

«Вода, вода, одна вода…» Вы слышали эту фразу и, что касается воды, то она действительно везде. Воды Земли присутствуют (почти) повсюду: над поверхностью Земли — в воздухе, облаках, — а также на поверхности Земли — в реках, океанах, льдах, растениях и в живых организмах.

Russian translation courtesy of EduTranslator -...

Contacts: Ask USGS
Date published: November 1, 2018
Status: Completed

A Day in the Life of a USGS Water Scientist

If you have to spend time in other people's shoes before judging them, you'd have to do a lot more than walk a mile to understand a USGS water scientist. For example, if you were Hydrologic Technician, or "Hydrotech," John Jastram, you would be perched 40 feet above a river as you made water-quality measurements from a swaying cable car. And if you were Hydrotech Karl Dydak, you would actually...

Contacts: Ask USGS
Date published: October 26, 2018
Status: Completed

Water Science Activity Center

This is the interactive section of our site where you can answer challenge questions, participate in opinion surveys about water issues, and take true/false quizzes.

Contacts: Ask USGS
Date published: June 15, 2018
Status: Completed

Dictionary of Water Terms

Water Science Dictionary of Terms

Here's a list of water-related terms that might help you understand our site better. It is compiled from a number of sources and should not be considered an "official" U.S. Geological Survey water glossary.

Contacts: Ask USGS
Date published: June 11, 2018
Status: Completed

Saline Water and Salinity

In your everyday life you are not involved much with saline water. You are concerned with freshwater to serve your life's every need. But, most of Earth's water, and almost all of the water that people can access, is saline, or salty water. Just look at the oceans and remember that oceans comprise about 97% of all water on, in, and above the Earth.

Contacts: Ask USGS