1.
the budling block on matter
2.
a combination of two ore more atoms
3.
a molecule involving two different elements
4.
Everything in the universe
5.
State of matter with definite shape and volume
6.
State of matter with indefinite shape and definite volume
7.
State of matter with indefinite shape and volume
8.
Phase change of solid to gas
9.
Phase change of Liquid to gas
10.
Phase change of gas to liquid
11.
Phase change of solid to liquid
12.
Phase change of liquid to solid
13.
Atom with different numbers of neutrons
14.
Atom with different numbers of electrons
15.
Mixture that is Uniform
16.
Mixture that is Nonuniform