mixtures and solutions

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Mixtures and SolutionsVocabulary

+Mixture: two or more materials stirred together.

+Property: a characteristic of an object, something you can observe (color, shape, size, or texture)

+Solution: a special mixture formed when a material dissolves in water.

Note: solutions must be CLEAR!

+Dissolving: when one material disperses uniformly into another material, so that the first material seems to disappear.

+Elements: cannot be reduced to simpler substances (everything on earth is made from these).

gold

aluminum

copper

+Earth’s most common elements:

iron; 35%

Oxygen; 28%

Mag-ne-

sium; 17%

Silicon; 13%

Other; 7%

+Elements in you!

Oxygen; 65%Carbon; 18%

Hy-drogen; 10%

Nitrogen; 3%Calcium; 2%Other; 2%

+Mixtures and Solutions singing video:

www.youtube.com/watch?v=#189E19

+Solute: a substance that dissolves in a solvent to form a solution.Solvent: a substance that dissolves the solute to form a solution.

+Saturated Solution: a solution in which as much solute as possible has been dissolved.

+Concentration: the amount of material dissolved in a measure of liquid.

+Dilute: to make a solution less concentrated, usually by adding more liquid.

+Volume: is the 3-dimensional space occupied by something (like a liquid).

+Chemical reaction: when two or more materials are mixed together and a change occurs.

+Precipitate: a solid material that forms as a product of a reaction.

+Atom: the smallest particle of an element. Atoms are the building blocks of matter.

+Molecule: The smallest part of a substance that is made up of two or more atoms.