Separation of Mixtures
Magnetism
A magnet is used to separate magnetic materials from those that are not magnetic.
Evaporation
A mixture is heated unit the water changes from a liquid to a gas. The water vapor can be collected and condensed back into liquid form. The remaining substance has then been separated from the water.
Sifting or Filtering
A mixture is passed through a screen that operates large particles. The smaller particles pass through while the larger particles are collected on the screen.
Weight
A mixture of lead and aluminum pellets
Evaporation & weight
A mixture of oil and water
Weight
A mixture of red blood cells and plasma
Magnetism
A mixture of salt and iron filings
Sifting and filtering
A mixture of sand and gravel
Evaporation
A mixture of sugar and water
Weight
A special machine called a centrifuge spins a mixture to separate substances with different masses. The heavier substances is forced to the bottom and the liquid is siphoned off.