Rock and the Rock Cycle
|
Rocks are always on the move through the rock
cycle!
Click on parts of this rock cycle diagram to find out more about sedimentary
rocks, igneous rocks and metamorphic
rocks and how they change over geologic
time.
Almost all of the rock that we have on Earth today is made of the same
stuff as the rocks that dinosaurs and other ancient life forms walked,
crawled or swam over. While the stuff that rocks are made from has stayed
the same, the rocks themselves, have not. Over time rocks are recycled
into other rocks. Moving tectonic
plates are responsible for destroying and forming many different types
of rocks.
|
How does the rock cycle work?
Rock Eating Bacteria Found at the Bottom of the Sea
Newly-Found Rock May Prove Antarctica and North America Were Connected
Earth as a System
Storms Shaped the Himalayan Mountains
You might also be interested in:
Many forces cause the surface of the Earth to change over time. However, the largest force that changes our planet's surface is the movement of Earth's outer layer through the process of plate tectonics.
...moreSeafloor bacteria on ocean-bottom rocks are more abundant and diverse than previously thought, appearing to "feed" on the planet's oceanic crust, according to results of a study reported in this week's
...moreA lone granite boulder found against all odds high atop a glacier in Antarctica may provide additional key evidence to support a theory that parts of the southernmost continent once were connected to North
...moreThe first time people got a glimpse of the whole Earth was December 1968. Apollo 8 astronauts, en route to and from the Moon, took pictures of the Earth from space. In their photographs, the Earth looks
...moreAn abrupt release of methane, a powerful greenhouse gas, from ice sheets that extended to Earth's low latitudes some 635 million years ago caused a dramatic shift in climate, scientists funded by the National
...moreCanadian bedrock more than 4 billion years old may be the oldest known section of the Earth's early crust. Scientists at the Carnegie Institution of Washington and McGill University in Montreal used geochemical
...moreThis is my 10th year with the Anchorage School District as a science teacher, currently working with K-12 teachers around the district rather than in a classroom. My most recent classroom time was as a
...more