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Science Final Exam

What is the Nucleus? Protons (positive) + neutrons (neutral). Atomic mass is the number of protons plus neutrons.
What is Electrons? (Negative) move around the nucleus.
What are the layers of the earth in order from thickest to thinnest? Thick to thin: Mantle, Outer Core, Inner Core, and Crust.
What are the layers of the earth in order from outside to inside? Outside to inside: Crust, Mantle, Outer Core, and Inner Core.
What is the composition of the crust? (what is it made out of?) Crust: earth's surface and continental/oceanic plates. Where we live.
What is the composition of the mantle? (what is it made out of?) Mantle: molten rock.
What is the composition of the outer core? (what is it made out of?) Outer Core: liquid, nickel, and iron.
What is the composition of the inner core? (what is made out of?) Inner Core: solid, nickel, and iron.
How do geologists know about the Earths interior? Geologists know about the Earth's interior because of seismic waves.
What is Chemical Weathering? And an example of it? Chemical Weathering: chemically breaks down/ changes substances. Example: acidic water dissolving rock.
What is Mechanical Weathering? And an example of it? Mechanical Weathering: physical break down. Examples: roots breaking rock, and water freezing and expanding to break rocks.
What is Erosion? And an example of it? Transport of weathered material. Examples: carving a canyon by running water, formation of underground caverns by water, and landslides.
Created by: briannaq13



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