satchem24

Particles are (a)   ​ each other by forces

• attracted to
• repelled from
• given to
• made up of

​ (a)   is anything that has mass and takes up space

• Matter
• Time
• A Particle
• The Scientific Model
• Gas

All matter is made of tiny particles either called:

• individual atoms and individual molecules.

• groups of atoms and groups of molecules.

• individual molecules or groups of molecules called atoms.

• individual atoms or groups of atoms called molecules.

The nucleus is held together by the:

• electrons

• protons

• strong nuclear force

• weak nuclear force

Atoms are neutral which means:

• the number of neutrons must equal the number of nuclei

• the number of neutrons must equal the number of electrons

• the number of electrons must equal the number of protons

• the number of protons must equal the number of neutrons

The number of _______ defines the type of atom:

• atoms

• protons

• neutrons

• electrons

A(an) _____ is a characteristic of matter that we can measure:

• Elemental property

• Chemical property

• Physical property

• Mental property

______ changes can almost always be reversed to get back what you originally had before the change took place.

• Chemical

• Physical

• Solid

• Liquid

• Gaseous

The process by which one or more substances are changed into others through chemical means are called:

• Chemical interactions

• Chemical contractions

• Chemical relations

• Chemical reactions

Fruit Loops, pizza, and Skittles are examples of ____________________ mixtures.

• heterogeneous

• homogeneous

• pure