3rd Monthly Test

a substance that consists of only one type or kind of atom.

• element

• compound

• made up of two or more substances that are not chemically combined.

Has definite shape

• Solid

• Liquid

• Gas

• Plasma

• Changes shape depending on container

• Solid

• Liquid

• Gas

• Plasma

1. is the process by which molecules undergo a spontaneous transition from a liquid phase to a gas phase.

1. the settling of particles or sediment onto a surface.

• deposition

• freezing

• condensation

• melting

the Science that deals with the materials of the universe and the changes that these materials undergo. The study of matter, its composition and structure, properties, and the changes it undergoes.

D = m/V

• Volume

• Matter

• Density

• Mass

is considered the smallest particle of matter which makes up the world around us.

“Atomos” greek word meaning “uncut”

• J.J. Thompson

• Aristotle

• John Dalton

• Democritus