1. Matter

2. Matter anything that has mass and takes up space (volume).
can be a solid, liquid, gas or plasma.

3. Mass the amount of matter in an object measured in grams
*Note: mass is different from weight. Weight depends on gravity and can change.*

4. Volume the amount of space an object takes up
measured in milliliters (mL) or cubic centimeters (cm3)

5. Density
the amount of mass in a given volume (how packed together or spread out the particles are in an object)
Measured in g/mL or g/cm3
Less dense
More dense

6. Atom the smallest unit of matter From the Greek: atomos
“a” means not
“tomos” means cuttable
Three parts to the atom: proton and neutron (in the nucleus) and electron