6th Grade Matter Review

Particle in the nucleus of an atom with a positive charge.

• neutron

• proton

• electron

• atom

The basic unit of matter; the smallest unit of an element, having all the characteristics of that element; consists of negatively-charged electrons and a positively-charged center called a nucleus.

• electron

• molecule

• atom

• proton

States that the mass of what you end with is always the same as the mass of what you start with

• atomic theory

• atom

• chemical change

• Law of Conservation of Mass

A change in the identity of a substance due to the chemical properties of that substance

• chemical change

• physical change

• chemical property

• nucleus

The smallest unit of a substance that retains the chemical and physical properties of the substance; two or more atoms held together by chemical bonds.

• electron

• molecule

• nucleus

• proton

Any characteristic that gives a substance the ability to undergo a change that results in a new substance

• atomic theory

• chemical property

• nucleus

• neutron

The theory that all matter is made up of fundamental particles called atoms; the concept of an atom as being composed of subatomic particles.

• chemical property

• Law of Conservation of Mass

• molecule

• atomic theory

Dense, central core of an atom (made of protons and neutrons).

• nucleus

• electron

• neutron

• atom

Particle orbiting the nucleus of an atom with a negative charge.

• chemical change

• proton

• electron

• nucleus

Particle in the nucleus of an atom with no charge.

• molecule

• neutron

• atom

• proton