Chapter 3: Matter

Element

• Matter that is made up of only one kind of atom

• A substance that can be broken down into simpler substances

• A mixture of two or more different atoms

• A compound formed by chemical reactions between different elements

Chemical Change

• The process of 2 or more elements or compounds combining to form a new substance

• A physical change that alters the appearance of a substance

• The process of breaking down a compound into its individual elements

• A change that can be easily reversed without altering the substance

Weight

• Measures the amount of force gravity places on an object or matter

• Measures the volume of an object

• Measures the temperature of an object

• Measures the density of an object

Atom

• The smallest particle that makes up matter

• A type of molecule

• A large structure made of cells

• A form of energy

Compound

• A molecule formed by combining atoms of different elements

• A single atom of an element

• A mixture of different substances

• A solution of a solute in a solvent

Freezing

• The process of a liquid changing into a solid

• The process of a solid turning into a liquid

• The process of a gas turning into a liquid

• The process of a solid turning into a gas

Condensation

• The process of a gas changing into a liquid

• The process of a liquid changing into a gas

• The process of a solid changing into a liquid

• The process of a gas changing into a solid

Concentration

• the amount of solute that is dissolved in the solvent

• the total volume of the solution

• the temperature at which a solution boils

• the pressure exerted by the solute in the solution

Balance

• A tool for measuring temperature

• An instrument used to measure the mass of an object

• A device for calculating speed

• A machine for mixing ingredients

Melting

• The process of a solid changing to a liquid

• The process of a liquid changing to a gas

• The process of a gas changing to a solid

• The process of a solid changing to a gas