| A | B |
| Equilibrium | Reaching balance between opposing forces |
| Experimental Control | The part of an experiment that stays the same so you can test your variable |
| Experimental Variable | The part of an experiment you are testing and changing |
| Hydroponics | A system where plants are grown in liquid (water) rather than in soil |
| Interdependence | A situation in which the parts of a systm depend on each other for survival |
| Oxygen-Carbon Dioxide Cycle | Green plants need sunlight, water, and carbon dioxide to complete photosynthesis. During photosynthesis, plants give off oxygen. Humans and other animals need this oxygen to survive. Humans and other animals produce carbon dioxide as a waste product which the plants use to start the process over. (PLants use carbon dioxide and give off oxygen. People use the oxygen and give off carbon dioxide for the plants) |
| Regenerate | To form again or be made anew |
| System | An orginized, interdependent group of related objects that form a unified whole |
| Closed System | A system in which no new resources are introduced (such as the BIO-Plex) |
| Open System | A system that interacts with and receives resources from other systems |