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6th Grade Vocab

energy transfer When one kind of energy is converted into another. An example is a batteries chemical energy being converted into electricity.
heat transfer The process whereby heat moves from one body or substance to another by radiation, conduction, convection, or a combination of these methods.
states of matter Solid, liquid, gas and plasma.
conduction The transfer of heat when two objects come into contact.
convection The transfer of heat by the circulation or movement of the heated part of a liquid or gas.
radiation The process in which energy is emitted as particles or waves.
kinetic energy Energy of motion.
potential energy Stored energy.
atoms The smallest component of an element having the chemical properties of the element.
molecules Two or more atoms that are chemically bonded.
closed system A region that is isolated from its surroundings by a boundary that admits no transfer of matter or energy across it.
transformation Change in form, appearance, nature, or character.
mass The amount of matter in an object.
ecosystem A biological community of interacting organisms and their physical environment.
biotic Living things like plants or animals.
abiotic Nonliving things like a bike or toaster.
population A group of individuals of the same species living and interbreeding within a given area.
community All the populations in a given area interacting at a given time.
producers An organism that can make its own food like a plant.
consumers An organism that cannot make its own food. It gets its food by eating producers or other consumers.
decomposers An organism, usually a bacterium or fungus, that breaks down the cells of dead plants and animals into simpler substances for food.
bacteria Single celled microbes to small to see without a microscope.
fungus Any of a diverse group of eukaryotic or single-celled organisms that live by decomposing and absorbing the organic material in which they grow.
parasite An organism that lives on or in an organism of another species, known as the host, and benefits by getting nutrients from the host.
predator Any organism the exits by preying upon other organisms.
prey An animal hunted or seized for food, especially by a carnivorous animal.
symbiosis The relationship between two different organisms living together that benefits both.
competiton When organisms compete for resources like food and territory.
pollution The introduction of harmful substances or products into the environment.
resource depletion The consumption of a resource faster than it can be replenished.
species extinction When no members of a species are alive.
igneous Rock formed from the cooling and solidification of lava or magma.
metamorphic Rock that has undergone transformation by heat or pressure.
sedimentary Rock that is formed by the deposition of material at Earth's surface.
rock cycle A model that describes how rocks are created and destroyed.
erosion The act in which earth is worn away by water, wind, or ice.
minerals The building blocks of rocks.
weathering When small pieces of rocks are broken apart by wind, water, or ice.
soils The upper layer of earth in which plants grow.
sediments Matter that settles to the bottom of a lake, pond, or river.
abrasion Mechanical scraping of a rock surface by friction between the moving particles.
glaciers A slow moving river of ice formed by the accumulation and compaction of snow.
gravel A loose collection of small water-worn or pounded stones.
silt Fine sand, clay, or other material carried by running water and deposited as a sediment.
clay A stiff, sticky fine-grained earth that often forms an impermeable layer in the soil.
organic material Matter composed or organic compounds that has come from the remains of organisms such as plants and animals and their waste products in the environment.
plate tectonics The theory that Earth’s outer shell is divided into several plates that glide over the mantle, the rocky inner layer above the core.
earthquake The results of a sudden release of energy in the Earth’s crust that creates seismic waves.
volcanic eruption A rupture on the earth's crust that allows hot lava, volcanic ash, and gases to escape from the magma chamber below the surface.
mountain building Refers to the geological processes that underlie the formation of mountains.
lithosphere The earth's crust and upper mantle.
crust The outer layer of the earth.
mantle The layer of earth's interior between the crust and the outer core.
inner core The solid center of earth's interior thought to be responsible for earth's magnetism.
fossils The preserved remains or traces of animals, plants, and other organisms from the remote past.
rocks A naturally occurring solid aggregate of one or more minerals.
geological history Follows the major events in earth's past based on the geologic time scale, a system of chronological measurement based on the study of the planets rock layers.
timelines A way of displaying a list of events in chronological order.
relative dating A technique used to determine which of two fossils is older.
rock layers A bed or layer of sedimentary rock that is visually distinguishable from adjacent beds or layers.
thermal expansion/contraction Most materials expand when heated and shrink when cooled.
sand A naturally occurring granular material composed of finely divided rock and minerals particles.
magnetic feild A region around a magnetic material or a moving electric charge within which the force of magnetism acts.
poles One of the two ends of a magnet.
asthenosphere The upper layer of the earth's mantle, below the lithosphere, in which convection is thought to occur.
outer core A liquid layer composed of iron and nickel which lies above the Earth's solid inner core and below its mantle.
Created by: sikkwl