Front

Vinegar is a substance because it is made of material with unique properties.

Back

The physical material that something is made of that has unique properties.

Front

Phase change: liquid to gas due to heat increase

Back

Evaporation

Front

Observable characteristics of a chemical reaction:

Back

Bubbling, Color change, New odor

Front

Evaporation is a phase change because it involves a change in the state of matter.

Back

A change in the state of matter of a substance.

Front

Every substance has a unique molecule, which is

Back

A group of atoms bonded together, representing the smallest part of a substance.

Front

A substance that cannot dissolve in a liquid is

Back

Insoluble

Front

Insoluble substance in water:

Back

Rice

Front

A substance that dissolves in a liquid is

Back

Soluble

Front

Soluble substance in water:

Back

Cocoa powder

Front

A reversible reaction is

Back

A reaction that can be reversed where the substance is the same.