Vocabulary 7

Physical change:A change in size,shape,or state,without forming a new subtance.Physical changes include separating matter into different parts or mixing matter with new parts as long as  no new subtances are made.

Chemical change:A change in matter that produces a new subtance with different properties from the original.The changes in the liking patterns of the atoms create new subtances.

Chemical reaction:A chemical change of original subtances into one or more new subtances.

Reactant:One of the of the original subtances before a chemical reaction takes place.

Product:One of the new subtances produced when a chemical reaction takes place.