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Creation of the moon
Earths moon formed approximately 4,450 millions years ago. We believe that the formation hof the moon happened because of a collision between Earth and a Mars sized planet. When this collision happened the particles from the Mars sized planet and the Earth came together to form the moon. -
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Barrier Islands
Barrier Islands are formed when there is a supply of sand sufficient to form islands, the sea level is rising, and there are winds and waves with sufficient energy to move the sand around. The barrier islands formed 18,000 years ago. -
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Grand Canyon
Information on the Grand Canyon goes back 10,500 years ago. The Native Americans were the first humans in this area. The Grand Canyon is an example of a "V-shaped" valley, which is a river valley - a steeply sloped narrow valley that looks like the letter "V" from a cross-section. This is formed by wind cutting down into the rock also known as downcutting. The Grand Canyon was formed from millions of years of erosion the Colorado River cut through rock of the Colorado Plateau. -
May 1, 1111
Great Lakes Shoreline
Six million years ago central North America was covered by a shallow sea, this was the Paleozoic Era. Eventually the sea receded but left behind a lot of sand, salt and silts. High ridges and rock formation were left behind. The Great Lakes shoreline was formed from millions of years of glacier action, wind, lava flows and the varying of the lake levels. -
Fall Lines
A Fall Line is a line of rapids and waterfalls. The Fall Line was discovered by Captain Christopher Newport and John Smith in April 1607. The Fall line is a part of Virginia's landscape and has been since the formation of the Atlantic Ocean. The Fall Line has had a great impact on the geology of Virginia. -
Earthquake in Charleston
The earthquake in Charleston during 1886 did the most damage ever in the southeastern United States. It killed 60 people and caused $5-6 million in damage. The earthquake was so bad thatvthere were reports about damage in central Alabama, central Ohio, eastern Kentucky, southern Virginia, and western West Virginia. -
San Andreas Fault
The Earth's crust is made like a series of plates that move slowly over the Earth's surface for millions of years. Two of these moving plates meet in western California and the boundary between them is the San Andreas fault. The Pacific Plate moves northwestward to the North American Plate, causing earthquakes along the fault. -
Appalachian Mountains
In 1912 Pangea was discovered by Alfred Wagner. Pangea is a supercontinent formed many years ago. The supercontinent broke up then merged together then broke apart again. When the continents merged together it formed the Appalachians mountains. When they were formed erosion immediately wore them down. -
Formation of Hawaii
The Earth’s outer crust is made up of tectonic plates that move over the surface of the planet. The location where the plates come together, sometimes causes volcanoes to form. Volcanoes can also form in the middle of a plate, where magma rises upward until it erupts on the sea floor, this is known as a hot spot. The Hawaiian Islands were formed by a hot spot in the middle of the Pacific Plate. -
Drought in the Southeastern United States
The southeastern United States, including Georgia, Alabama, Tennessee and Florida had a severe drought during the winter of 2005 through the summer of 2008. The drought led to water restrictions, caused reservoir levels to drop dangerously, and damaged crops. The drought was caused partly by atmospheric-ocean climate variability and by internal atmosphere variability. During this drought there was barely any evaporation or precipitation.
