What are the step in addressing environmental problem
1. Scientific Assessment
2. Risk analysis
3. Public Education & Involvement
4. Political Action
5. Long term evaluation
Matter
Anything that has mass and takes up space living or not
High Quality
highly concentrated is typically found near the earths surface and has has great potential for use as a resource
Low Quality
Matter is not highly concentrated is often located deep underground or dispersed in the ocean or atmosphere and usually has little potential lfor use as resource
Element
Fundamental substance that has a unique set of properties and cannot be broken down into simpler substances by chemical means
Example of Elements
Oxygen
Carbon
Hydrogen
Nitrogen
Law of conservation of matter states
whenever matter undergoes a physical or chemical change no atoms are created or destroyed
NO AWAY
How is energy defined
Capacity to do work or transfer heat
Potential energy
stored energy ( chemical bonds in plants or gasoline, water behind a dam)
Kinetic Energy
Associated with motion - wind , flowing water, heat