Forces of Nature

Water on, in, and above the Earth - USGS Water Science for Schools The USGS Water Science School A Beta version of the new USGS website has been released for public comment.Use the "Feedback" button at bottom of every Beta page to tell us what you think. As the saying goes ... "water, water, everywhere." Well, how much water is there; where is this water; how does it move around?

Chasing Tornadoes, Tornado Alley, Storm Chasing Written by Priit J. Vesilind Around dinner hour on June 24, 2003, the entire hamlet of Manchester, South Dakota—walls and rooftops, sheds and fences, TVs, refrigerators, and leftover casseroles—lifts from the earth and disappears into a dark, thick, half-mile-wide (0.8-kilometer-wide) tornado. Climate Change How is the climate changing in the U.S.? Observations across the United States and world provide multiple, independent lines of evidence that climate change is happening now. Learn More What are climate change and global warming? Global warming refers to the recent and ongoing rise in global average temperature near Earth's surface. It is caused mostly by increasing concentrations of greenhouse gases in the atmosphere. How Landslides Work" See more pictures of natural disasters. When it comes to natural disasters, the tornadoes and tsunamis of the world tend to get all of the attention. Rarely do landslides seize as many headlines as the volcanoes and earthquakes that can cause them.

Welcome - Southeast Regional Climate Center Welcome to Climate Kids - where kids of all ages can have FUN learning about our climate! Click the image below for Games, Activities, and Resources or scroll down for our text menu. What is a glacier? Donjek Glacier in the Saint Elias Range, Yukon Territory, Canada. 1985. —Credit: Natural Resources Canada. Photograph by Douglas Hodgson. Copyright Terrain Sciences Division, Geological Survey of Canada. Glaciers are made up of fallen snow that, over many years, compresses into large, thickened ice masses. Glaciers form when snow remains in one location long enough to transform into ice.

Seismic Waves" This content is not compatible on this device. Click the play button to start the earthquake. When P and S waves reach the earth's surface, they form L waves. Geologic Time Chart You will be learning about the structure, history, and geologic principles that are the basis for the Geologic Time Chart. The Geologic Time Chart is one of the most important tools you will use as a Docent at the Idaho Museum of Natural History. Consequently, understanding the geologic principles and history of the chart will definitely be a great assistance to you as you work with groups of school children in the museum's galleries. Geologic Time 1. The Earth has a long, unique history. The Earth and the life it supports have changed throughout its history. Let's look at how scientists have pieced together the events of Earth's history.

GSA EarthCache - An Introduction How to Have Fun & Learn about the Earth at EarthCache™ Sites Visiting an EarthCache site is a great way to learn more about our wonderful world. It can take you to many places that you would not normally visit, and teach you about why those places are special or unique. EarthCache sites can also teach you and your family important skills such as navigation and map reading. What better way to learn than to have fun exploring on this wonderful planet we call Earth! What do I need to visit an EarthCache site? This Dynamic Earth View of the planet Earth from the Apollo spacecraft. The Red Sea, which separates Saudi Arabia from the continent of Africa, is clearly visible at the top. (Photograph courtesy of NASA.)