Biochemical Reaction - the transformation of one molecule to another inside a cell. Enzymes are used to alter the rate of these reactions., Cohesion - the property of water that states one water molecule is attracted to another water molecule , Carbon - The chemical element with an atomic number of 6, which serves as a major component of all organic compounds, Hydrogen - A colorless, odorless, gaseous element, represented by the symbol “H”, and biologically involved in various biochemical and physiological processes., Chemical Properties - characteristics of a material that become evident when the material undergoes a chemical reaction or chemical change ( ex: acidity, rusting, toxicity), Chemical Reactions - a process in which one or more substances, the reactants, are converted to one or more different substances, the products, Elements - the pure substance of one type of atom. The four that are common to all living organisms are oxygen (O), carbon (C), hydrogen (H), and nitrogen (N)., Oxygen - a chemical element present in water (H2O) and is essential to all life. The element we breathe in., Polar - a molecule in which the distribution of electrons between covalent bonds is not even. (ex: water), Physical Properties - a characteristic of matter that can be observed and measured without changing the chemical identity of the sample, Solvent - a molecule that has the ability to dissolve other molecules, known as solutes; can be solid, liquid or gas, Surface Tension - the property of the surface of a liquid that allows it to resist an external force, due to the cohesive nature of its molecules, Thermoregulator - ability of an organism to keep its body temperature due to water., Water - a chemical substance consisting of two hydrogen atoms bound to the central oxygen atom via a covalent bond; life's most essential molecule. We drink it! ,

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