Periodic Table
Water Quality
100
Protons
A particle with a positive charge, that is in the nucleus.
100
Hydrosphere
All of the water on Earth's surface.
Ex:Lakes, Seas, and Clouds.
200
Conductor
A material that transmits heat, electricity and or sound. (Ex:Metal, Copper)
200
Turbidity
The water being cloudy or opaque.
300
Atomic Mass
The mass of an atom of a chemical element expressed in atomic mass units.
300
Marine Ecosystem
Marine ecosystems are aquatic environments with high levels of dissolved salt. These include the open ocean, the deep-sea ocean, and coastal marine ecosystems, each of which have different physical and biological characteristics.
400
Bohr Model
The Bohr Model is a planetary model in which the negatively charged electrons orbit a small, positively charged nucleus 
400
Surface Water
Water that collects on the surface of the ground.
500
Brittle
Hard but liable to break or shatter easily.
500
Universal Solvant
Water is called the "universal solvent" because it is capable of dissolving more substances than any other liquid.