Volcanoes
Mountains built up from magma are called?
Volcanoes.
What is the Focus?
The Focus is the underground origin of an earthquake.
Fissures are.....
large cracks in Earth's crust that can open up.
What are Foliated rocks.
They are rocks that have visible layers or elongated grains of minerals.
Gems are...
minerals that are rare and can be cut and polished ,giving them a beutiful appearance.
What are the three types of Volcanoes?
Cinder Cones,Shield Volcanoes and Composite Volcanoes.
Directly above the focus, on the Earth's surface is the.....?
Epicenter.
Intrusive Igneous rocks are produced when magma.....
cools below the surface of the Earth.
What are Non-Foliated rocks?
They are rocks that do not have distinct layers or bands.
To be gem quality ,
most minerals must be clear with few blemishes or cracks.
Which type of Volcano have quiet flows?
Shield Volcanoes.
A Fault is a.......?
break in Earth's crust.
Lava cools quickly...
before large mineral crystals have time to form.
Give three examples of a Non-foliated rock.
Such as quartzite, marble, and soapstone.
A gem also must have.
a beutiful luster or color.
What are Cinder cones?
Cinder cones are volcanoes made mostly of cinders and other rock particules that have been blown away into the air.
The measure of the energy released by an earthquake is called the....
Magnitude.
Pieces of broken up rock,shells,mineral grains,and other materials make upwhat is called.....
Sediment
A fossil is
the remains or trace of a once living plant or animal.
Give an example of a Gem.
Diamond.
What type of Mountain is Mount Vesuvius
It's a Composite Volcano.
Used by Scientists to quantify the amount of energy realeased by an earthquake is called the?
Richter scale.
Extrusive Igneous rocks form when melted.....
rock material cools on Earth's surface.
Granitic and Basaltic rocks are mostly what type of rock?
Igneous rock.