| A | B |
|---|
| science | discovering and explaining relationships in the natural world. |
| energy | the ability to do work |
| kinetic energy | energy of motion |
| matter | anything that has mass and takes up space |
| atoms | the basic building block of elements |
| molecules | the basic building block of compounds |
| physical properties/changes | include tearing, crushing, freezing,melting, condensation, evaporation, and boiling |
| density | the quantity of something per unit volume |
| solubility | the ability of a solid to dissolve in a liquid |
| melting | a change of state from a solid to liquid |
| freezing | a change of state from a liquid to a solid |
| vaporization | change of state from a liquid to a gas |
| boiling | a change of state from a liquid to a gas. It occurs rapidly and bubbles appear. It is a type of vaporization. |
| evaporation | a change of state from a liquid to a gas |
| condensation | a change of state from a gas to a liquid |
| heat of fusion | the amount of heat needed to change one gram of substance from solid to liquid |
| heat of vaporization | the amount of heat needed to change one gram of substance from liquid to gas. |
