mixture

• can be separated-heterogenous

• physical joining of 2 or more substances
• not a new substance
• Ex. Trail mix

solution

• completely blended-homogenous
• looks the same throughout
  
• Ex-sea water, air, tea
  

colloid

• mixture in which particles do not dissolve, but they stay mixed
• Ex-mayonnaise, jam, toothpaste, marshmallow
  

suspension

• a mixture in which suspended particles can easily be seen
• can settle into layers
• Ex-oil and vinegar
  

emulsion

• type of colloid in which one liquid is spread thoughout another
• Ex-milk
• fat-water
  

aerosol

• type of colloid in which liquid or solid particles spread through a gas
• Ex-fog
• water-air
  

gel

• type of colloid in which a solid is spread through a liquid
• Ex-gelatin
• protein-water

foam

• type of colloid in which gas is spread through a liquid
• Ex-whipped cream
• air-water and fat
  

physical change

change of matter's size, shape, or state without changing identity

(same properties)

chemical change

change of matter when atoms link in a new way, creating a new substance

(new properties)

chemical reaction

another name for chemical change

reactants

origianl substances at the beginning of a chemical reaction

product

new substances created by a chemical reaction