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Lessons 1 & 2

Lessons 1 & 2 of Chapter 3

QuestionAnswer
Atmosphere the thin layer of gases that surrounds Earth
Atom the basic unit of matter; the smallest unit that maintains the chemical properties of an element
Biosphere the Earth and all of its organisms and environments
Carbohydrate an organic compound that consists of atoms of carbon, hydrogen, and oxygen
Compound a substance combining atoms of two or more different elements
Element a chemical substance with a unique set of properties that connot be broken down into substances with other properties
Erosion the removal of soil by water, wind, ice, or gravity
Feedback Loop a circular process that describes how an event is both a cause and an effect in the same system; can be a positive feedback loop or a negative feedback loop
Geosphere all of the rock at and below Earth's surface
Hydrocarbon an organic compound combining hydrogen and carbon
Hydrosphere all of the water-salt water and fresh water, in the form of liquid, ice, or vapor- above and below Earth's surface and in the atmosphere
Lipid chemically diverse compound that does not dissolve in water
Lithosphere sphere of the Earth made up of hard rock on and just below Earth's surface; the outermost layer of both Earth and its geosphere
Macromolecule a large organic molecule; includes proteins, nucleic acids, carbohydrates, and lipids
Matter any material that has mass and occupies space
Molecule a combination of two or more atoms
Nucleic Acid the macromolecule that carries hereditary information; includes DNA and RNA
Nucleus the central core of an atom; consists of protons and neutrons
PH a measure of acidity or alkalinity( basicity) of a solution
Protein an organic compound made up of carbon, oxygen, nitrogen, and sometimes sulfur
Solution a mixture in which all the ingredients are evenly distributed
Created by: user-1972489
 

 



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