Section 1 Crossword
Across
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29.
30.
Down
chemical combination of two or more elements
mineral containing silicon and oxygen
solid lacking a regular crystal structure
rock formed or crystallized from magma
differs in atomic mass, not atomic number
possessing a regular, repeating internal arrangement of
atoms
earth’s innermost compositional zone
nonsilicate mineral with oxygen combined with one or
more metals
magma that flows onto the earth’s surface
______ growth is characterized by a constant percentage
increase per unit time
igneous rocks that crystallized deep within the earth
igneous rock formed at or near the earth’s surface
naturally occurring, inorganic, solid element or compound
negatively charged subatomic particle
nonsilicate mineral containing sulfur but no oxygen
1.
2.
4.
5.
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20.
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28.
positive ion
naturally occurring silicate melt
atom that has lost or gained electrons
earth’s outermost compositional zone
negative ion
parallel alignment of platy minerals in a rock
rock changed in form by heat and/or pressure
nonsilicate mineral containing carbon and oxygen atoms in
ratio of 1 to 3
rock formed from sediments at low temperatures
smallest particle of an element
zone of earth’s interior between crust and core
chemical bonding involving sharing of electrons between
atoms
electrically neutral subatomic particle
nonsilicate mineral containing sulfur and oxygen in a ratio
of 1 to 4
positively charged subatomic particle
atom’s center
______ sedimentary rocks formed from fragments of
preexisting rocks or minerals
chemical bonding due to attraction between oppositely
charged ions
solid, cohesive aggregate of one or more minerals