Luci's Sceince Final Flashcards
What is the…
crust?
crust – the outermost solid layer of Earth, the part we live on
What is the…
mantle?
mantle – the layer of Earth just below the crust, which contains most of Earth’s mass
What is the…
core?
core – the innermost layer of Earth
What is the…
lithosphere?
lithosphere – the Earth’s crust and the solid, upper part of the mantle
What is the…
continental drift?
continental drift – the theory that the continents drifted apart in the past and continue to do so
What is the…
plate techtonics?
plate tectonics – the theory that Earth’s lithosphere is broken into about 20 moving plates
What is the…
plate boundaries?
plate boundaries – areas where two plates meet
What is the…
fault?
fault – a break in Earth’s crust
What is the…
focus?
focus – the underground location where the earthquake occurs
What is the…
epicenter?
epicenter – the point on the Earth’s surface directly above the focus
What is the…
Richter Scale?
Richter Scale – is a measure of an earthquake’s strength, goes from 1-10, each increase of 1 on the scale is an increase about 31 times of energy released.
What is the…
mineral?
mineral – is a natural, nonliving solid with a definite chemical structure.
What is the…
crystals?
crystals – a regular, repeating pattern in which particles of minerals are arranged
What is the…
rock?
rock – is a solid, natural material made up of one or more minerals
What is the…
sediments?
sedimentary rock – rock formed from layers of sediment that have been cemented together
What is the…
igneous?
igneous rock – rock formed from lava that has cooled and hardened
What is the…
metamorphic rock?
metamorphic rock – when heat, pressure, or chemical reactions change one type of rock into another type of rock
What is the…
organic matter?
organic matter – any substance that is made of living or the remains of living things
What is the…
humus?
humus – the organic part of soil
What is the…
sediments?
sediments – solid particles carried from one place and dropped onto another place
What is the…
weathering?
weathering – the process of breaking down rock into small pieces
What is the…
mechanical weathering?
mechanical weathering – breaking down of rock, by wind, water, and ice
What is the…
chemical weathering?
chemical weathering – a change in minerals as they react with substances in the environment, such as water or oxygen
What is the…
erosion?
erosion – the process by which soil and sediments are transferred from one location to another, usually by wind, water, ice and gravity
