Elements, compounds and mixtures

consists of one type of material

have fixed melting and boiling points

melting point is lowered by impurities

boiling point is raised by impurities

the purity of substance is determined by the melting and boiling point.

Separating funnel

Paper chromatography

Simple distillation

Fractional distillation

How would you separate sand from water ?

What is the difference between element, a compound and a mixture?

What technique would you use to separate ethanol and water, vegetable oil and water, and black dye from a fabric?