Anything that occupies space and has mass.
Measure of the amount of matter is contains.
The smallest particle that can contain the chemical properties of an element.
Composed of atoms that cannot be broken down into smaller, simpler compnents.
List of the elements currently known.
Particles containing more than one atom.
Molecules that contain more than one element.
The number of protons in the nucleus of a particular element.
The total number of protons and neutrons in an element.
Atoms of the same element have different numbers of neutrons, therefore, diferent mass numbers.
Release of material from the nucleus.
The time is takes for one half of the original radioactive atoms to decay.
Elements that do not gain or lose electrons.
The attraction between opposite charged ions.
A weak chemical bond that forms when hydrogen bonds are convalently bonded.
One side is more positive and the other side is more negative.
The cohesion of water molecules at the surface of a body of water.
Adhesion of water molecules to a surface of water is stronger than cohesion between molecules.
Hydrogen Ions in a solution.
Hydroxide ions in a solution.
Indicate the strength of acids and bases.
Atoms seperate from the molecules they are apart of.
Law of Conservation of Matter
Matter cannot be created or destoryed; it can only change form.
Compounds that do not contain carbon.
Compunds that have carbon-carbon and carbon-hydrogen bonds.
Long chains of nitrogen-containing organic molecules called amino acids.
An organic compound found in all living things.
Genetic material organisms pass on to their offspring that contains a code for reproduction.
Code stored in the DNA and allows for sythesis of proteins.
Molecules that do not mix with water.
A living enity that consists of four types of macromolecules, surrounded by a membrane.
The ability to do work or transfer heat.
Form of energy including visible light, UV light, and infrared radiation which we percieve as heat.
Massless packets of energy that travel at the speed of light.
The amount of energy used when a 1-watt light bulb is turned on for a second.
The rate at which work is done.
Energy that is stored but has not yet been released.
The energy of motion.
Potential energy stored in chemical bonds.
Measure of the average kinetic energy of a substance.
First Law of Thermodynamics
Energy cannot be created or destroyed.
Second Law of Thermodynamics
When energy is transformed, the quantity of energy remains the same, but its ability to do work diminishes.
The ration of the amount of work done to the total amount of energy introduced.
The ease of an energy source at work.
All systems move towards randomness rather than toward order.
Matter and energy exchanges across system boundaries do not occur.
Additions to a given system.
Losses from a system.
Determines inputs, outputs, and changes in the system under various conditions.
If inputs equal outputs.
The results of a process feed back into the system to change the rate of the process.
Negative Feedback Loop
A system responds to a change by returning to its original state.
Positive Feedback Loop
Change in a system is amplified.
Adaptive Management Plan
A stradegy providing flexibility so that maagers can modify changes that occur.