|
 chemical properties | characteristics that can be described when a substance reacts with another substance |
| conductor | a device designed to transmit electricity, heat, etc. |
| mass | the amount of matter in an object |
| states of matter | forms of matter such as solids, liquids, gases |
| acids | Have a pH lower than 7 |
| bases | Have a pH above 7 |
| conduction | the transmission of heat or electricity or sound |
| contract | squeeze or press together |
| expand | become larger in size or volume or quantity |
| chemical change | The change of one or more substances into a new substance(s) |
| convection | the transfer of heat through a fluid (liquid or gas) caused by molecular motion |
| concave lens | a lens that curves inward )( |
| convex lens | a lens that curves outward () |
| ecosystem | all the living things in an area and their physical environment |
| environmental changes | change in environment that can affect an organism's ability to survive |
| light reflection | the process of light bouncing off a substance |
| magnetic field | the lines of force surrounding a permanent magnet or a moving charged particle |
| fossils | remains or traces of organisms from the past |
| inherited traits | characteristics passed on from parent to offspring |
| complete metamorphosis | four dramatically different stages: egg, larva, pupa, and adult. |
| incomplete metamorphosis | a process of gradual maturing of an insect(egg, nymphal stages or instars, adults) |
| kinetic energy | energy of motion |
| potential energy | the enrgy that exists due to the position or condition of an object |
| radiation | the heat transfer by electromagnetic waves - thermal light waves |
| revolution | a single complete turn (axial or orbital) |
| species | A classificatory group of animals or plants subordinate to a genus. |
| insulator | a material that does not allow the flow of electricity |