Checking for Understanding – Classification of Matter Matter: Materials Homogeneous Materials Examples Salt (NaCl) Salt water Oxygen (O2) Granite Glass Air Water (H2O) Copper (Cu) Hydrogen (H2) Sugar (C12H22O11) Milk Wood Alcohol aka Methanol (CH3OH) Antifreeze Zinc (Zn) Paper Substances Elements Compounds Heterogeneous Materials Mixtures Homogeneous Heterogeneous Mixtures Mixtures Checking for Understanding – Classification of Matter Matter: Materials Homogeneous Materials Examples Salt (NaCl) Salt water Oxygen (O2) Granite Glass Air Water (H2O) Copper (Cu) Hydrogen (H2) Sugar (C12H22O11) Milk Wood Alcohol aka Methanol (CH3OH) Antifreeze Zinc (Zn) Paper Substances Elements Compounds Heterogeneous Materials Mixtures Homogeneous Heterogeneous Mixtures Mixtures