CPS Ch 2 Vocab
physical change
a change where the composition of the matter stays the same
suspension
a heterogeneous mixture containing large particles that separates into layers over a period of time
colloid
a homogeneous mixture containing intermediately sized particles that scatter light
homogeneous
a mixture that does look the same throughout
heterogeneous
a mixture that does not look the same throughout
solution
a mixture that results when substances dissolve to form a homogeneous mixture that cannot be separated by a filter and doesn't scatter light particles
chemical property
a property describing how a substance could change its composition and become a different substance
precipitate
a solid that forms and separates from a liquid mixture because of a chemical reaction
compound
a substance that can be broken down into two or more simpler substances and is made in a specific fixed proportion
element
a substance that cannot be broken down into a simpler substance because it is made of only 1 kind of atom
pure substance
matter that always has the same composition throughout
conductivity
the ability of a material to allow electricity and heat to flow through it
flammability
the ability of a material to burn
boiling point
the temperature at which a liquid begins to become a gas
melting point
the temperature when a solid begins to become a liquid