VOCABULARY 9

PHYSICAL CHANGE: a change in siza, shape, or state, without forming a new substance.

CHEMICAL CHANGE: a change in matter that produces a new substance with different properties from the original.

  CHEMICAL REACTION: a chemical change of original substances into one or more new substances.

REACTANT: one of the original substances before a chemical reaction takes place.

PRODUCT: one of the new substances produced when a chemical reaction takes place.