EARTH
What is the crust?
Outer layer of the Earth
what is hardness?
the comparative ability of a substance to scratch or be scratched by another.
what is a mineral?
Any of a class of substance occurring in nature.
what is magma?
molten material beneath or within the Earth's crust, from which igneous rock is formed.
What is a mold?
a hollow form for giving particular shape to something in a molten or plastic state.
what is the mantle?
Portion of Earth between the crust and core
what is streak?
a long, narrow mark, smear, band of color.
what is luster?
the state or quality of shinning by reflecting light.
what is lava?
the molten, fluid rock that issues from a volcano or volcanic vent.
what is a cast?
An object made by shaping molten metal or similar material in a mold.
What is the outer core?
Thick layer of molten iron and nickle that surrounds the solid inner core
what is fracture?
the characteristic appearance of a broken surface, as of a mineral.
what is compaction?
the consolidation of sediments resulting from the weight of overlying deposits.
what is erosion?
process of eroding or being eroded by wind, water or other natural agents.
What is a imprint?
mark made by pressure.
what is the inner core?
Solid, Hottest, and innermost layer of Earth
what is density?
a measure of the quantity of some physical property per unit length, area, or volume.
what is cementation?
coating process in which a metal or alloy is immersed in a powder of another metal, and heated to a temp below the melting point of either.
what is weathering?
process of wearing or being worn by long exposure to the atmosphere.
what are fossils?
remains or impression of a prehistoric organism preserved in petrified form or as a mold or cast in rock.
what is plate tectonics?
Theory explaining the structure of earth's crust and many associated phenomena as resulting from the interaction of rigid lithosphere plates which move slowly over the underlying mantle.
what is the rock cycle?
continuous process by which rocks are created, changed from one form to another, destroyed, and then formed again.
what is intrusive?
of a rock having been forced between preexisting rocks or rock layers while in a motion or plastic condition.
what is evolution?
the change in the heritable characteristics of biological populations over successive generations.
what is petrification?
process by which organic matter exposed to minerals over a long period is turned into a Stony substance.