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Vocabulary Chapter 1-5
science vocabulary words
83
Environmental Studies
9th Grade
10/21/2015

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Term
Earth Science
Definition
name for the group of sciences that deal with Earth and it's neighbors in space
Term
Geology
Definition
The study of Earth
Term
Meteorology
Definition
Study of the atmosphere and the processes that produce weather and climate
Term
Astronomy
Definition
The study of the universe
Term
Hydrosphere
Definition
all the water on Earth
Term
Atmosphere
Definition
Life sustaining, thin gaseous layer envelope
Term
Geosphered
Definition
between the atmosphere and the ocean
Term
Biosphere
Definition
all life on Earth
Term
Core
Definition
heavy, dense inner sphere of Earth
Term
Mantle
Definition
less dense than core, inner crust
Term
Crust
Definition
outer layer of the lithosphere
Term
Nebular Hypothesis
Definition
Says the systems formed out of a cloud called the solar nebular
Term
Latitude
Definition
Distance north and South of the Equator
Term
Longitude
Definition
Distance east and west of the equator
Term
Topographic Map
Definition
Shows elevation
Term
Contour lines
Definition
Shows the changes in elevation
Term
Contour interval
Definition
Shows the differences in elevation
Term
System
Definition
a size or group of interacting parts that help to form a complex whole
Term
Hypothesis
Definition
Educated guess
Term
Theory
Definition
A well tested Hypothesis
Term
Plate tectionics
Definition
Plates underneath crust that move using convection currents
Term
Equator
Definition
The line that measures 0 degrees horizontally across the Earth
Term
Prime Meridian
Definition
Line that measures 0 degrees vertically across the Earth
Term
Renewable Resource
Definition
a resource that can be replenished faster than a nonrenewable resource
Term
Nonrenewable Resource
Definition
A resource that is used faster than it can be replenished
Term
Element
Definition
Can be broken down into simpler substances by chemical or physical means
Term
Atomic number
Definition
The number of protons and electrons in an atom
Term
Energy Level
Definition
Where electrons are located
Term
Isotop
Definition
Atoms with the same number of protons but a different number of electrons
Term
Mass number
Definition
total mass of an atom
Term
Compound
Definition
when two or more atoms are chemically combined
Term
Chemical Bond
Definition
Happens when an atom's outer most energy level does not meet the maximum number of electrons needed
Term
Ion
Definition
an atom with an electric charge
Term
Ionic bond
Definition
a bond between ions
Term
Covalent Bond
Definition
When atoms share electrons
Term
Metallic Bond
Definition
When electons are shared by metal ions
Term
Atom
Definition
the smallest particle of matter that contains the characteristics of an element
Term
Carbonate
Definition
Minerals that contain carbon, oxygen, and one or more metallic elements
Term
Oxides
Definition
minerals that contain oxygen and one or more other elements, which are usually metals
Term
Minerals
Definition
naturally occurring inorganic solids
Term
Silicate
Definition
most common groups of minerals on earth
Term
Silicon- Oxygen Tetrahedron
Definition
silicon and oxygen combined
Term
Streak
Definition
The color of a mineral in it's powder form
Term
Luster
Definition
describes how light is reflected from mineral's surface
Term
Crystal form
Definition
A mineral in it's crystal form
Term
Hardness
Definition
a mineral's resistance to scratching
Term
Moh's Scale
Definition
measures a minerals hardness from weakest to hardest
Term
Cleavage
Definition
The tendency of a mineral to cleave, or break along flat even surfaces.
Term
Fracture
Definition
minerals that do not show cleavage
Term
Density
Definition
it has a formula im too lazy to write down
Term
Native Elements
Definition
minerals that contain one element as type of atom
Term
Rock
Definition
naturally occuring mineral or mineral like substance in our planet
Term
Rock Cycle
Definition
the continuous processes that cause rocks to change
Term
Magma
Definition
molten material that form deep beneath the Earth's surface
Term
Igneous rock
Definition
Form from magma cooling down
Term
lava
Definition
magma that reaches the Earth's surface
Term
weathering
Definition
a process in which rocks are physically or chemically broken down
Term
Sediment
Definition
the weathered pieces of Earth's materials
Term
Metamorphic Rock
Definition
what sediment creates after being in extreme pressure and temperature.
Term
Sedimentary rock
Definition
sediment that is compacted and cemented
Term
Intrusive Igneous rocks
Definition
rocks that form when magma hardes underneath the Earth's surface
Term
Extrusive Igneous rocks
Definition
rocks that form when lava hardens
Term
Texture
Definition
describes the appearance of an igneous rock based on its size, shape, and arrangement
Term
Composition
Definition
what something is made of
Term
Porphyrictic texture
Definition
rocks with different sized minerals because of different cooling rates
Term
Granite Composition
Definition
igneous rock where light colored silicate minerals, quartz, and feldspar are the main materials
Term
Basaltic compositon
Definition
Rocks that contain many dark silicate minerals and Plagioclase feldspar
Term
Basaltic compositon
Definition
Rocks that contain many dark silicate minerals and Plagioclase feldspar
Term
Andesitic composition
Definition
rocks with a composition between granite and basaltic rocks
Term
Ultramafic
Definition
A rock that is composed of dark silicate minerals
Term
Erosion
Definition
involves weathering and removal of rock
Term
Compaction
Definition
the process that squeeze sediments together
Term
Cementation
Definition
when tiny sediments are wedged in between tiny spaces among the sediments
Term
Clastic Sedimentary rock
Definition
rocks made of weathered bits of rocks and minerals
Term
Metamorphism
Definition
to change form
Term
Foliated
Definition
when rocks undergo contact metamorphics they become more compact and minerals will recrystalize
Term
Chemical Sedimentary Rock
Definition
when dissolved minerals precipitate from water solutions
Term
non-foliated
Definition
a metamorphic rock that does not have a banded appearance
Term
hydrothermal solution
Definition
hot water solution carrying dissolved minerals
Term
Ore
Definition
something that contains a mineral that you can smelt something out
Term
Geothermal Energy
Definition
using the earth's interior to heat water and use it to run turbines
Term
Chernobyl
Definition
a nuclear powerplant that melted down and had a big exposion
Term
Talus
Definition
sections of rock that are wedged loose may tumble into large piles
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