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4-1, & 4-2 Vocabulary

Earth Science: C.Stickman
Across
Slushlike layer of the mantle.
The crust and the uppermost portion of the mantle.
A imaginary line of longitude that tells travelers where to change dates.
Thickest of the earth's layers, surrounding the outer core.
Spinning of the earth around it's axis.
Composed of solid iron and nickel.
Down
Thin layer surrounding the mantle, includes the earth's surface.
Charged particles creating a magnetic force.
Areas roughly defined by 24-15 degree sections.
Starting point for the standard time zones.
Each standard time zone centered on a line of longitude, exactly divisible by 15 degrees.
Composed of liquid iron and nickel.
Study of earth's surface and interior.