Guess the word #1
A combination of two or more pure substances where each keeps its own properties—a new substance is not formed.
Mixture
A mixture where the substances are thoroughly mixed up.
homogenous
What instrument is used to separate blood cells from plasma?
Centrifuge
A liquid with air bubbles trapped in it.
foam
A mixture where the substances are not evenly mixed up.
heterogeneous
Name three groups of minerals
Silicates, carbonates, halides, sulfides, phosphates, oxides
A substance made when two or more elements combine chemically.
Compound
A nearly universal solvent.
Water
What is a native mineral?
Mineral containing only one element
The process of heating a mixture to kill the bacteria in it.
Pasteurization
The process of breaking up fat into tiny pieces that can remain suspended.
Homogenization
List three ways to separate substances in a mixture.
Filtering, decantation, distillation, evaporation, chromatography, centrifuge.
A substance that cannot be broken down chemically.
Element
The ability of fat molecules to keep air molecules suspended.
Structural integrity
Briefly explain how milk is turned into cheese.
Acid is added to coagulate the milk, curds are separated from the whey, an enzyme is added to harden the curds, curds can be pressed and aged.