| A | B |
| Adhesion | the tendency of water to stick to other substances |
| Buoyancy | the ability of a fluid to exert an upward force on an object that is immersed in the fluid |
| Capillary Action | the process that moves water through a narrow porous space |
| Cohesion | the attractive force between water molecules |
| Density | the measure of mass of a substance per unit volume |
| Insoluble | not soluble |
| Polarity | uneven distribution of charges across a molecule |
| Soluble | having the ability to be dissolved in another substance |
| Specific Heat | the amount of heat needed to raise the temperature of one gram of a substance by one degree Celsius |
| Surface Tension | the force that acts on the particles at the surface of a material |
| Universal Solvent | the quality of water that makes it able to dissolve more substances that any other solvent can |
| Condensation | the process of warm air cooling as it rises and releasing moisture in the form of a liquid |
| Evaporation | the process by which a liquid is changed into a vapor |
| Hydrosphere | the portion of the Earth that contains water |
| Impermeable | does not allow water to move through |
| Infiltration | water that seeps into rocks and between particles of soil |
| Permeable | having pores or openings that allow water(or other liquids) to flow through them |
| Surface Water | water found on the surface of the Earth |
| Transpiration | water vapor given off by plant photosynthesis |
| Water Cycle | the continuous movement of water from the ocean to the atmosphere to the land and back to the ocean |