Chapter 3 vocab
NUCLEUS
Central core of an atom that contains protons and nuetrons.
MATTER
All material in the universe that has mas and takes up space.
MOLECULE

A combination of 2 or more atoms of the same types or of different types joined by covalent bonds.

COMPOUND

A substance composed of atoms of two or more different elements.

 

HYDROCARBONS
Organic compounds containing only hydrogen and carbon.
SOLUTION
A mixture in which all the ingredients are evenly distributed.
MACROMOLECULES
Proteins, nucleic acids, carbohydrates, and other large sized molecules.
PROTEINS
Organic compounds made up of carbon, hydrogen, oxygen, and nitrogen. Used for muscle and tissue support.
NUCLEIC ACIDS
Macromolecules that direct protein production.
CARBOHYDRATES
Polymers that consist of atoms of carbon, oxygen, and hydrogen.
LIPIDS
A chemically diverse group of macromolecules that are classified together because they don’t dissolve in water.
pH
Describes the acidity or alkalinity of a substance.
FEEDBACK LOOP
When an event is both a cause, or input and an effect, or output.
EROSION
The removal of soil by wind, water, ice, or gravity.
CRUST
Thin layer of relatively cool rock that forms the earth’s outer layer on dry land and on the ocean floor.
MANTLE
A layer of very hot, but mostly solid rock.
CORE
Center of the earth, made up of outer core, molten iron and nickel, and the inner core, dense ball of solid metal.
Tectonic Plates
Large plates of lithosphere that rest on top of the asthenosphere.
LANDFORMS
Features such as mountains, islands, and continents.
DISPOSITION
The movement of eroded soil or sediments from one place to another.
EVAPORATION
The conversion of a substance,ie. water, from a liquid into a gas.
TRANSPIRATION
The release of water vapor by plants through their leaves.
PRECIPITATION
The return of water to the earth, snow, rain.
CONDENSATION
The change of a gas back into a liquid.
AQUIFERS
Large underground reservoirs or storage areas.
GROUNDWATER
Freshwater found underground.
LAW OF CONSERVATION OF MATTER
Explains why the amount of matter in the environment stay the same as it flows through matter cycles.
NUTRIENTS
Matter that organisms require for the life process.
BIOCHEMICAL CYCLES
The complex cycle of nutrients through the environment.
PRIMARY PRODUCERS
Plants and algae that produce their own food.
PHOTOSYNTHESIS
Plant process of making food by using the sun’s energy.
CONSUMER
Organisms that must eat other organisms to obtain nutrients.
DECOMPOSERS
Organisms such as bacteria and fungi that break down wastes and dead organisms.
CELLULAR RESPIRATION
The process by which organisms use oxygen to release the chemical energy of sugars and and release CO2 and water.
EUTROPHICATION
The process that occurs when large amounts of phosphorus to bodies of water, which causes overgrowth of producers.
NITROGEN FIXATION
The conversion of nitrogen gas into ammonia
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