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Ch. 3 EMS VOC 1-2

Chapter 3 - Mr. Pasone's Enviornmental Science

TermDefinition
Matter All matter in the universe that contains mass and takes up space
Atom The basic units of matter
Element A chemical substance with a given set of properties that cannot be broken down into substances with other properties
Nucleus The center of every atom, containing Protons, Electrons, and Neutrons, Protons are positively charged, Electrons are negatively charged (also surround the outside of the nucleus), and Neutrons have no charge.
Molecule A combination of two or more atoms of the same or of different types joined by covalent bonds.
Compound A substance composed of atoms of two or more different elements
Hydrocarbon Organic compounds containing only Hydrogen and carbon
Solution A mixture in which all the ingredients are evenly distributed
Macromolecule Large-scaled molecules E: Proteins, nucleic acids, liquids, and carbohydrates
Protein Polymers that serve many functions in organisms
Nucleic Acids Macromolecules that direct protein production
Carbohydrate Polymers that consist of atoms of carbon, hydrogen, and oxygen
Liquid Chemically diverse group of macromolecules that are classified together because they do not dissolve in water
pH A scale from 0 to 14 that measures how acidic or basic a liquid is, with 7 being neutral (Middle).
[LESSON 2 BEGINNING] - Feedback Loop A cynical process in which an output is returned as an input to modify or reinforce it's actions, or a mechanism that helps a system self-regulate and adapt by using feedback.
Erosion The removal of soil by water, wind, ice, or gravity
Geosphere Made of all the rock on and just below Earth's surface
Lithosphere The hard rock on the just below Earth's surface - the outermost layer of the Geosphere
Biosphere All the planet's living, once-living, and nonliving things of the environment with which they interact.
Atmosphere Consists of the layers of gases surrounding our planet
Hydrosphere Encompasses all water - salt, fresh, liquid, ice, and vapor - on Earth's surface
 

 



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