Matter
Anything that has mass and takes up space
Substance
A single type of matter that is pure. *pure-always has the same composition (make up). Ex.water+salt
physical property
Any property that is measurable. *using the 5 senses
chemical property
A property that becomes evident during of after a chemical reaction
Chemical changes
a chemical reaction reallge atoms of one or more substances to changes (only an be an reaction)
Mixture
Two or more substances that are mixed together but not chemically combined. *2 types: Homogeneous- are a mixture where the substances are of the same of matter, or is dissolved in one another. Heterogeneous- the substances are not the same substances of matter ( easier to separated)
phyiscal changes
Affects the form of a chemical substance but does not change the chemical properties
Mass
the amount of matter in an object
Volume
The amount of space an object takes up
Density
How compact the particles are with an object
DMV
•M/D=V. Volume is measured in cm3 •M/V=D. D. *Density is measured in 1g/cm3 •DxV=M. *Mass is measured in grams