The force that pulls things toward the Earth
Gravity
The natural and manmade places where water is found
Reservoir
An area of higher elevated land that naturally determines where surface water and groundwater drain.
Watershed
The process that causes a liquid to turn into a gas.
Evaporation
The process that causes a liquid in plants to be released as a gas.
Transpiration
Two or more atoms held together by a bond.
Molecule
When molecules move slowly/vibrate and are tightly packed.
Solid
When molecules move at a medium speed and slide past each other.
Liquid
When molecules move fast, far apart and do not touch unless they collide.
Gas
The process of water turning from a gas into a liquid
Condensation
The number one way to know if something is living.
It's made of cells.
The layer that controls what enters and leaves the cells, the boundary of the cell.
Cell membrane
The interior of any cell. There are many structures and functions that happen here that are too small to see even with a microscope.
Cytoplasm
Part of the cell that converts food into a form of energy that the cell can use to grow, reproduce or do its function.
Mitochondria
Part of the cell that stores and protects the parts of the cell (genes) that control the cell's growth, reproduction and function.
Nucleus
