Download Earth`s Materials Study Guide Key Define Igneous Rock: a type of

Earth’s Materials Study Guide Key
Define
Igneous Rock: a type of rock formed when cooled and hardened by magma.
Metamorphic Rock: a type of rock formed when a rock is changed by heat or pressure.
Sedimentary Rock: a type of rock formed when layers of rock pieces are cemented
together
Hydrosphere: name for collective water on Earth
Mineral: a substance that occurs naturally in rocks and in the ground and has its own
characteristic appearance and chemical composition.
Classification: is the process of identifying, naming and categorizing living things based
on their physical and biological characteristics.
Humus: material in the soil that comes from living things.
Answer the Questions below:
What is the crust made of? The crust is made of rocks and soil.
Where can most of Earth’s water be found? Most of Earth’s water can be found in the
oceans.
Explain what the lithosphere is and what two parts are found there. The lithosphere is
the crust, the outermost layer of the Earth and the two parts are continental and
oceanic.
What is the thinnest and outermost layer of the Earth? The thinnest and outermost layer
is the crust/lithosphere.
What is the thickest layer of the Earth? The thickest layer of Earth is the mantle.
What layer is at the center of the Earth that contains 2 parts? The center of the Earth is
the core there is an upper core and an outer core.
What is a continent, how many are there, and name them? A continent is a land mass
that makes up most of the dry land on Earth. There are 7 and they are Europe, Asia,
Africa, North America, South America, Antarctica, and Australia.