test 2

The study of matter and how it changes

Anything that has mass and takes up space (Solid liquid gas food water air)

Pure substances and mixtures

Matter fixed with a composition and definite properties (Elements ,compounds , atom, compound, molecule, chemical formula)

Physical accommodation of more than one pure substance which can be physically into its parts

Heterogeneous and homogeneous 

A homogeneous mixture that remains constantly in uniformly mixed and has particles that are so small that they cannot be seen with a microscope ( sugar water or iced tea)

Heterogeneous mixture containing a liquid in it which is the particles settle ( muddy water and Italian dressing)

Chemical and physical

Shape color odor texture hardness

Reactivity flammability light sensitivity

1 Production of gas 2 Change of color 3 production of a solid without cooling 4 Change in temperature

SOLID characteristics a. Fixed volume b. Fixed shape LIQUID characteristics a. Fixed volume b. No fixed shape GAS characteristics a. No fixed volume b. No fixed shape

Solid to liquid

Liquid to gas

Solid to gas

Liquid to solid

Gas to liquid

Energy cannot be created or destroyed

Mixture where parts evenly mixed

Mixture where parts are not evenly mixed

Energy cannot be created or destroyed, but the matter can only change form