Erin Kelley
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| 197149127 | Matter | Anything that occupies space and has mass. | |
| 197149128 | Mass | Measure of the amount of matter is contains. | |
| 197149129 | Atom | The smallest particle that can contain the chemical properties of an element. | |
| 197149130 | Element | Composed of atoms that cannot be broken down into smaller, simpler compnents. | |
| 197149131 | Periodic Table | List of the elements currently known. | |
| 197149132 | Molecules | Particles containing more than one atom. | |
| 197149133 | Compounds | Molecules that contain more than one element. | |
| 197149134 | Atomic Number | The number of protons in the nucleus of a particular element. | |
| 197149135 | Mass Number | The total number of protons and neutrons in an element. | |
| 197149136 | Isotopes | Atoms of the same element have different numbers of neutrons, therefore, diferent mass numbers. | |
| 197149137 | Radioactive Decay | Release of material from the nucleus. | |
| 197149138 | Half-Life | The time is takes for one half of the original radioactive atoms to decay. | |
| 197149139 | Covalent Bonds | Elements that do not gain or lose electrons. | |
| 197149140 | Ionic Bonds | The attraction between opposite charged ions. | |
| 197149141 | Hydrogen Bonds | A weak chemical bond that forms when hydrogen bonds are convalently bonded. | |
| 197149142 | Polar Molecule | One side is more positive and the other side is more negative. | |
| 197149143 | Surface Tension | The cohesion of water molecules at the surface of a body of water. | |
| 197149144 | Capillary Action | Adhesion of water molecules to a surface of water is stronger than cohesion between molecules. | |
| 197149145 | Acid | Hydrogen Ions in a solution. | |
| 197149146 | Base | Hydroxide ions in a solution. | |
| 197149147 | pH Scale | Indicate the strength of acids and bases. | |
| 197149148 | Chemical Reaction | Atoms seperate from the molecules they are apart of. | |
| 197149149 | Law of Conservation of Matter | Matter cannot be created or destoryed; it can only change form. | |
| 197149150 | Inorganic Compounds | Compounds that do not contain carbon. | |
| 197149151 | Organic Compounds | Compunds that have carbon-carbon and carbon-hydrogen bonds. | |
| 197149152 | Proteins | Long chains of nitrogen-containing organic molecules called amino acids. | |
| 197149153 | Nucleic Acids | An organic compound found in all living things. | |
| 197149154 | DNA | Genetic material organisms pass on to their offspring that contains a code for reproduction. | |
| 197149155 | RNA | Code stored in the DNA and allows for sythesis of proteins. | |
| 197149156 | Lipids | Molecules that do not mix with water. | |
| 197149157 | Cell | A living enity that consists of four types of macromolecules, surrounded by a membrane. | |
| 197149158 | Energy | The ability to do work or transfer heat. | |
| 197149159 | Electromagnetic Radiation | Form of energy including visible light, UV light, and infrared radiation which we percieve as heat. | |
| 197149160 | Photons | Massless packets of energy that travel at the speed of light. | |
| 197149161 | Joule | The amount of energy used when a 1-watt light bulb is turned on for a second. | |
| 197149162 | Power | The rate at which work is done. | |
| 197149163 | Potential Energy | Energy that is stored but has not yet been released. | |
| 197149164 | Kinetic Energy | The energy of motion. | |
| 197149165 | Chemical Energy | Potential energy stored in chemical bonds. | |
| 197149166 | Temperature | Measure of the average kinetic energy of a substance. | |
| 197149167 | First Law of Thermodynamics | Energy cannot be created or destroyed. | |
| 197149168 | Second Law of Thermodynamics | When energy is transformed, the quantity of energy remains the same, but its ability to do work diminishes. | |
| 197149169 | Energy Efficiency | The ration of the amount of work done to the total amount of energy introduced. | |
| 197149170 | Energy Quality | The ease of an energy source at work. | |
| 197149171 | Entropy | All systems move towards randomness rather than toward order. | |
| 197149172 | Closed System | Matter and energy exchanges across system boundaries do not occur. | |
| 197149173 | Input | Additions to a given system. | |
| 197149174 | Output | Losses from a system. | |
| 197149175 | System Analysis | Determines inputs, outputs, and changes in the system under various conditions. | |
| 197149176 | Steady State | If inputs equal outputs. | |
| 197149177 | Feedback | The results of a process feed back into the system to change the rate of the process. | |
| 197149178 | Negative Feedback Loop | A system responds to a change by returning to its original state. | |
| 197149179 | Positive Feedback Loop | Change in a system is amplified. | |
| 197149180 | Adaptive Management Plan | A stradegy providing flexibility so that maagers can modify changes that occur. |
