| Term | Definition |
| cohesion | something that hold the molecules together |
| kinetic- molecular theory | a theory that states all matter is made up of particles that are constantly moving |
| meniscus | the curve at a liquid's surface by which you measure the volume of the liquid |
| viscosity | a liquid's resistance to flow |
| surface tension | the force acting on the particles at the surface of a liquid that causes the liquid to form spherical drop |
| thermal expansion | the expansion that occurs when a solid ( or liquid) is heated |
| kinetic energy | the energy an object possess because of its motion |
| melting point | the temperature at which a substances changes from a solid to a liquid |
| characteristic property | a property of a substance that is always the same whether the sample observed is large or small |