| A | B |
|---|
| atoms | the smallest unit that makes up matter |
| matter | anything that has mass and takes up space |
| energy | anything that brings about change |
| element | something made up of only one kind of atom |
| compounds | made up of two or more elements in exact proportions chemically combined |
| molecule | a gourp of atoms held together by the energy of chemical bonds |
| mixtures | a combination of substances in which individual substances retain their own properties |
| solutions | a kind of mixture where two or more substances are mixed evenly |
| organic compounds | always contain carbon and hydrogen and are usually associated with living things |
| inorganic compounds | made from elelements other than carbon |
| carbohydrates | organic molecules that supply energy for cell processes |
| lipids | an organic compound that store and release energy but do not mix with water |
| proteins | organic compound that are made up of amino acids and are considered building blocks |
| enzymes | a type of protein that regulate chemical reactions in cells |
| nucleic acids | organic molecules that store important coded information (DNA/RNA) |
| water | an inorganic compound that makes up most of the blood and is where most chemical reactions occur |
