Terms : Hide Images
| 5001031714 | atomic number | number of protons in the nucleus of a particular element | 0 | |
| 5001032822 | mass number | a measurement of the total number of protons and neutrons in an element | 1 | |
| 5001038129 | Isotopes | Atoms of the same element with different numbers of neutrons | 2 | |
| 5001040563 | radioactive decay | the spontaneous release of material from the nucleus of radioactive isotopes | 3 | |
| 5001042319 | half-life | the time it takes for one-half of an original radioactive parent atom to decay | 4 | |
| 5001045550 | covalent bond | the bond formed when elements share electrons | 5 | |
| 5001047064 | ionic bond | a chemical bond between two ions of opposite charges | 6 | |
| 5001048446 | Hydrogen bond | weak chemical bond the forms when hydrogen atoms that are covalently bonded to one atom are attracted to another atom in another molecule | 7 | |
| 5001052233 | polar molecule | a molecule in which one side is more positive and the other side is more negative | 8 | |
| 5001054353 | surface tenstion | a property of water that results from eh cohesion of water molecules at the surface of a body of water and that creates a sort of skin on the water surface | 9 | |
| 5001058258 | Capillary action | a property of water that occurs when adhesion of water molecules to a survade is stronger than cohesion between the molecules | 10 | |
| 5001060174 | acid | contributes hydrogen ions to solution | 11 | |
| 5001062119 | base | a substance that contributes hrdoxide ions to soulction | 12 | |
| 5001063460 | pH | The number that indicates the relative strength of acids and bases in a substance | 13 | |
| 5001078266 | Inorganic compound | compound that does not contain the element carbon or contains carbon bound to element other than hydrogen | 14 | |
| 5001081354 | organic compound | compound that contains carbon-carbon and carbon-hydrogen bonds | 15 | |
| 5001138682 | Nucleic acid | Organic compounds found in all living cells | 16 | |
| 5001142176 | DNA | A nucleic acid, the genetic material that contains the code for reproducing the components of then next generation, an which organism pass on their offspring | 17 | |
| 5001147120 | RNA | A nucleic acid that translates the code stored in DNA, which makes possible the synthesis of proteins | 18 | |
| 5001154278 | Lipid | a smaller organic biological molecule that does not mix with water | 19 | |
| 5002762669 | First law of thermodynamics | energy can't b created or destroyed but can change from one form to another | 20 | |
| 5002766094 | Second law of thermodynamics | when energy is transformed the quantity of energy remains the same, but its ability to do work diminishes and entropy of the universe is increased | 21 | |
| 5002772813 | energy efficiency | ratio of amt of energy expanded in one form you wan total amount of energy that is introduced into the system | 22 | |
| 5002786076 | Open system | exchanges of energy or matter occur across system boundaries | 23 | |
| 5002788888 | Closed system | in which energy exchanges do not occur across boundaries | 24 | |
| 5002800914 | negative feedback loop | system responds s to a change by return to its orniganl state or by decreasing rate at which change occurs | 25 | |
| 5002805045 | positive feedback loop | change in system is amplified | 26 | |
| 5002907069 | Energy Quality | the ease with which an energy source can be used for work | 27 | |
| 5002925553 | Why is water such an important component of most environmental systems? | Water supports life on earth because humans and animals alike rely on it for survival. Also its unique properties such as capillary action and surface tension support various species in ecosystems such as water striders. | 28 | |
| 5002929059 | how are the first and second laws of thermodynamics influenced by environmental science? | State laws and then explain how they are connected: This affects environmental systems because the varying forms of energy in ecosystems determines what species can survive in said systems such as thermal energy heating up effects what animals can survive in water | 29 | |
| 5018125383 | Law of energy of matter | 30 |
