Vocabulary Project

physical property is NOT any property that is measurable, whose value describes a state of a physical system

chemical substance composed of many identical molecules

a molecule is atoms NOT grouped together

the body of theory which explains the physical properties of matter

below 32°F (0°C)

a mixture is ONE chemical substance

law of physics that states that energy cannot be created or destroyed

energy states that the total energy of an isolated system remains constant

a set of chemical symbols showing the elements present in a compound

a pure substance consisting only of atoms that all have the same numbers of protons in their nuclei

chemical reaction mass is neither created nor destroyed

a form of matter having constant chemical composition

homogeneous is consisting of parts all of the same kind

chemical property is when any of a material's properties that becomes evident during, or after, a chemical reaction

the transition of a substance directly from the solid to the gas state

melting is when something is becoming liquefied by heat

any substance that has mass and takes up space by having volume

occur when a substance combines with another to form a new substance

water which collects as droplets on a cold surface when humid air is in contact with it

physical change is NOT affecting the form of a chemical substance, but not its chemical composition

atom is the the basic unit of a chemical element

the process of turning from liquid into vapor

the scientific study of the properties and behavior of matter

a process involving substances in different phases