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lesson one and two

TermDefinition
matter All material in the universe that has mass and occupies space
atoms the basic units of matter
element a chemical substance with a given set of properties that cannot be broken down into other properties.
nucleus central core containing particles called protons and neutrons.
molecule a combination of two or more atoms of the same type or different types joined by covalent bonds
compound a substance composed of two or more different elements
hydrocarbons organic compounds containing only oxygen and hydrogen
solution a mixture in which all substances are evenly distributed
macromolecules Proteins, nucleic acids, carbohydrates, and lipids are called this because of their large size
Proteins organic compounds made up of carbon, hydrogen, oxygen, nitrogen, and sometimes sulfur
Nucleic Acids macromolecules that direct protein production
Carbohydrates polymers that consist of of atoms
lipids macromolecules classified together because they do not dissolve in water
Ph acidity or alkaline levels
feedback loop an effect or output in the same system, can be either negative or positive
erosion the removal of soil by water,ice,wind or gravity
geosphere is made of all the rock at and below the Earth's surface
litho-sphere the hard rock on and just below the Earth's surface
biosphere consists of all the planets once living or all living things
atmosphere layers of glasses surrounding our planet
hydrosphere encompasses layers of gases surrounding our planet
Created by: jaydden
 

 



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