Humans use rocks for many different things – in particular, roofing and building
materials. Is it possible to run out of rocks? Although we should always use ...
A rock is a naturally occurring solid. It is made of minerals (which are crystalline),
or other mineral-like substances. The minerals in the rocks vary, making ...
Interesting Metamorphic Rocks Facts: Marble and slate ... When slate forms,
some of the clay from the original rock is replaced by the mineral mica.
Rocks Facts: Rocks Facts for Kids. ... Rocks Facts. Rocks Rocks Facts. Igneous
Rocks Facts · Metamorphic Rocks Facts · Sedimentary Rocks Facts · Sandstone ...
Igneous rocks are formed when molten rock (magma) from within Earth cools and
solidifies. There are two types: intrusive igneous rocks solidify beneath Earth's ...
Interesting Igneous Rocks Facts: When magma rises to the surface of the Earth
and hardens, it forms extrusive igneous rock. Extrusive igneous rock tends to be ...
Because sedimentary rocks are made of various types of sediments, the other 50
% of a limestone rock could be virtually any other ... Interesting Limestone Facts:.
Interesting Obsidian Rock Facts: Different varieties of obsidian rock get their
names from their appearance. The appearance of obsidian is based on the ...
No matter where you are you are always close to rocks and minerals. They are
fascinating ... layer is unique. You can find the interesting details of the layers at:
The Structure of the Earth. ... Some have layers … some have stripes. What
Mar 18, 2012 ... Take a journey through the wild tales of our amazing Earth, from dazzling ... as
you take a journey through some amazing facts about Earth.