| A | B |
|---|
| malleability | the ability of a material to be beaten into a thin sheet or to be shaped without breaking |
| crystal | a solid material made up of molecules that are arranged in repeating patterns |
| react | to act because of something that happened |
| physical change | a change in matter that does not affect its chemical composition |
| chemical change | a chemical reaction; a process that changes substances into new substances |
| mass | the amount of matter in an object |
| plasma | a fourth state of matter in which the particles of a gas become highly charged |
| melting point | the temperature at which a solid turns into a liquid |
| freeze | to change a substance from liquid to solid by lowering its temperature |
| acid | a substance that has a pH below 7; will increase the concentration of hydrogen ions in solution |
| chemical | a substance that has a unique composition and properties; it may exist as a solid |
| chemical reaction | chemical change; a process that changes substances into new substances |
| solubility | the ability of a substance to be dissolved in a liquid |
| property | a characteristic or quality of a material |
| substance | the physical matter of which living or nonliving things are composed |
| volume (matter) | the amount of space an object or substance takes up |
| base | any substance with a pH higher than 7 |
| density | an object's mass divided by its volume; a measure of how many particles are packed together into a certain amount of space |
| noble gas | one of six elemental gasses that does not naturally react with other elements |
| hardness | A resistance of a metal or other material to scratching or breaking. |
| conductor | a material that transmits energy |
| matter | material that has mass and takes up some amount of space |
| temperature | a measure of the average kinetic energy of the atoms in a system |
| physical property | a characteristic that can be observed as texture |
| chemical property | the potential a substance has to react with another substance that can be seen by a chemical change |
