• A heterogeneous mixture is a mixture in which the composition is not uniform throughout the mixture.
  • A pure substance or a homogeneous mixture consists of a single phase.
  • When oil and water are combined, they do not mix evenly, but instead form two separate layers.
  • Soil is composed of a variety of substances and is often of different composition depending on the sample taken.
  • Whether the air is clean or smoggy, it's a collection of molecules.
  • See what it's made of in this simulation.
Select from the frequently asked questions below