1 element 2 proton 3 neutron 4 nucleus 5 electron 6 atomic number 7 atomic mass # 8 ion 9 periodic table 10 group 11 period 12 reactive 13 metal 14 nonmetal 15 Metalloid a substance that cannot be broken down into a simpler substance by ordinary chemical changes. Consists of atoms of only one type a positively charged particle located in an atom's nucleus a neutral particle located in an atom's nucleus the central region of an atom where most of the atom's mass is found in protons and neutrons a negatively charged particle located outside an atom's nucleus about 2000 times smaller than either a proton or neutron the total number of protons in an atom's nucleus the total number of protons and neutrons in an atom's nucleus an atom or group of atoms that has a positive or negative electric charge; forms by atoms gaining or losing electrons a table of the elements, arranged by atomic number, that shows the patterns in their properties a vertical column in the periodic table of the elements that have similar properties a horizontal row in the periodic table of the elements that have varying properties property in which a substance is likely to undergo a chemical change an element that tends to be shiny, easily shaped, and a good conductor of electricity and heat an element that is not a metal and has properties generally opposite to those of a metal Chemistry Term an element that has properties of both metals and nonmetals Chemistry Term Chemistry Term Chemistry Term Chemistry Term Chemistry Term Chemistry Term Chemistry Term Chemistry Term Chemistry Term Chemistry Term Chemistry Term Chemistry Term Chemistry Term Chemistry Term 16 density 17 specific heat 18 divide 19 turnover 20 eutrophication 21 aquifer 22 point-source pollution 23 nonpoint-source pollution 24 desalination 25 continental shelf 26 sonar 27 downwelling 28 upwelling the ratio of the mass of a substance to the volume of the substance (mass/volume) amount of heat energy required to raise the temperature of 1 kg of a substance by 1 degree Celsius a ridge, or continuous line of high land, from which water flows in different the yearly rising and sinking of cold and warm water layers in a lake an increase in nutrients in a lake or pond, occurring naturally or as a result of pollution, which causes increased growth of algae and plants decreasing the amount of oxygen in the water an underground layer of permeable rock that contains water pollution that enters water from a specific source that can be identified pollution with a widely spread source that can't be tied to a specific point of origin the process of removing salt from ocean water the flat or gently sloping land that lies submerged around the edges of a continent and that extends from the shoreline out to the continental slope a system that uses underwater sound waves to measure distance and locate objects the movement of water from the surface to greater depths carrying oxygen down allowing animals to live in the deep ocean the vertical movement of deep water up to the surface bringing up nutrients from the deep ocean allowing animals to thrive Hydrosphere Term Hydrosphere Term Hydrosphere Term Hydrosphere Term Hydrosphere Term Hydrosphere Term Hydrosphere Term Hydrosphere Term Hydrosphere Term Hydrosphere Term Hydrosphere Term Hydrosphere Term Hydrosphere Term 29 estuary 30 turbidity 31 hydrothermal vent 32 compound 33 chemical formula 34 molecule 35 chemical reaction 36 reactant 37 product 38 Precipitate 39 Catalyst 40 Law of Conservation of Mass a shoreline area where fresh water from a river mixes with salt water from the ocean a measure of the clarity of water that depends on the amount, size and composition of suspended matter such as clay, silt, phytoplankton and other microscopic organisms an opening in the sea floor from which heated water rises and mixes with the ocean water above a substance made up of two or more different types of atoms bonded together an expression that shows the number and types of atoms joined in a compound a group of atoms that are held together by covalent bonds so that they move the process by which chemical changes occur and new substances are formed; atoms are rearranged - chemical bonds are broken and formed a substance that is present at the beginning of a chemical reaction, takes part in the chemical reaction, and is changed into a new substance a substance formed by a chemical reaction; made by the rearrangement of atoms and bonds in reactants Hydrosphere Term a solid substance that forms as a result of a chemical reaction between chemicals in two liquids Chemistry Term a substance that increases the rate of a chemical reaction but is not consumed in the reaction Chemistry Term a scientific law stating that during a chemical reaction, matter is not created nor destroyed. Chemistry Term Hydrosphere Term Hydrosphere Term Chemistry Term Chemistry Term Chemistry Term Chemistry Term Chemistry Term Chemistry Term 41 coefficient 42 semiconductor 43 solution 44 45 solute solvent 46 concentration the number before a chemical formula that indicates how many molecules are involved in a chemical reaction a material that can precisely control the conduction of electrical signals a mixture of two or more substances that is the same throughout in a solution, a substance that is dissolved in a solvent in a solution, the substance that dissolves a solute Chemistry Term the amount of solute that is dissolved in a solvent at a particular temperature Chemistry Term 47 Chemistry Term Chemistry Term Chemistry Term Chemistry Term dilute 48 saturated 49 solubility 50 acid 51 base 52 Chemistry Term pH a solution having a low concentration of solute a solution containing the maximum amount of a solute that can be dissolved in a solvent at a given temperature the amount of a solute that dissolves in a certain amount of a solvent at a given temperature to produce a saturated solution a substance that can donate a proton to another substance that has a ph below 7 a substance that can accept a proton from another substance that has a ph above 7 the concentration of hydrogen ions in a solution measurement of acidity 53 Chemistry Term Chemistry Term Chemistry Term Chemistry Term Chemistry Term Chemistry Term neutral describing a solution that is neither an acid nor a base substance that has a pH of 7 54 Parasites 55 cell membrane 56 cytoplasm 57 eukaryotic cell 58 nucleus 59 organelle 60 61 62 63 prokaryotic cell mitochondria chemical energy cellular respiration 64 Diffusion 65 osmosis 66 mitosis An organism that lives in or on another organism (its host) and benefits by deriving nutrients at the host's expense. the outer boundary of the cytoplasm; a layer that controls what enters or leaves a cell; a protective covering enclosing an entire cell a thick, gelatin-like material contained within the cell membrane where most of the work of the cell is carried out a cell in which the genetic material is enclosed within a nucleus, surrounded by its own membrane the structure in a eukaryotic cell that contains the genetic material a cell needs to reproduce and function a structure in a cell that is enclosed by a membrane and that performs a particular function a cell that lacks a nucleus and other organelles organelles that release energy by using oxygen to break down sugars the energy stored in the bonds between atoms of every molecule a process in which cells use oxygen to release energy stored in sugars such as glucose the process by which molecules spread out, or move from an area of higher concentration to an area of lower concentration the diffusion of water through a membrane from an area of high concentration to an area of lower concentration the phase in the cell cycle during which the nucleus divides Microbiology Term Micro/Cell Biology Term Micro/Cell Biology Term Micro/Cell Biology Term Micro/Cell Biology Term Micro/Cell Biology Term Micro/Cell Biology Term Micro/Cell Biology Term Chemistry Term Micro/Cell Biology Term Micro/Cell Biology Term Micro/Cell Biology Term Micro/Cell Biology Term 67 asexual reproduction 68 microorganism 69 bacteria 70 71 72 73 74 Virus pathogen antibiotic infectious disease vector 75 carrier 76 noninfectious disease 77 resistance 78 Producer 79 decomposer 80 Metalloid 81 host cell 82 plankton the process by which a single organism produces offspring that have the same genetic material a very small organism that can be seen only with a microscope EXAMPLE: bacteria a large group of one-celled organisms that sometimes cause disease a nonliving, diseasecausing particle that uses the materials inside cells to reproduce; consists of genetic material enclosed in a protein coat agents that cause disease a substance that can destroy bacteria diseases that can be spread; caused by viruses, bacteria and other pathogens insects or animals that spread diseases to humans people who are infected with a disease and can infect others but do not show symptoms of the disease themselves diseases that cannot be spread by pathogens the ability of an organism to protect itself from a disease or the effects of a substance an organism that captures energy from sunlight and transforms it into chemical energy that is stored in energy-rich carbon compounds; a source of food for other organisms an organism that feeds on and breaks down dead plant or animal matter An element that has both properties of metals and nonmetals. a cell that a virus infects and uses to make copies of itself mostly microscopic organisms that drift in great numbers through bodies of water Micro/Cell Biology Term Micro/Cell Biology Term Micro/Cell Biology Term Micro/Cell Biology Term Micro/Cell Biology Term Micro/Cell Biology Term Micro/Cell Biology Term Micro/Cell Biology Term Micro/Cell Biology Term Micro/Cell Biology Term Micro/Cell Biology Term Micro/Cell Biology Term Micro/Cell Biology Term Chemistry Term Micro/Cell Biology Term Micro/Cell Biology Term 83 protozoa 84 geologic time scale 85 index fossil 86 Law of Superposition animal-like protists that eat other organisms or decaying parts of other organisms chart organized by scientists that divides Earth's history into intervals of time defined by major events or changes on Earth fossils of species that existed on Earth only during specific periods of time were abundant and widespread geographically used to help determine the age of rock layers scientific law that states in undisturbed sedimentary rock layers, the oldest rock layers are on the bottom and the youngest rock layers are on the top 87 Micro/Cell Biology Term Earth History Term Earth History Term Earth History Term Earth History Term unconformity 88 a gap in the sedimentary rock record that is due to erosion wearing away rock layers or periods of time without deposition of rock layers plate tectonics 89 continental drift Earth's lithosphere is made up of huge plates that move over the Earth's surface caused by convection currents in the Earth's asthenosphere when hot molten rock constantly rises, cools, sinks, and is heated again a hypothesis proposed by Alfred Wegener, a German scientist, stating that Earth's continents were once joined in a single landmass called Pangaea and gradually drifted apart Earth History Term Earth History Term 90 mid-ocean ridge a long line of seafloor mountains where new ocean crust is formed by volcanic activity along a divergent boundary forms the longest chain of mountains on Earth type of map that uses contour lines to represent the shape and elevation of the land the spreading of a city and its suburbs over rural land Earth History Term Earth History Term 91 topographic map 92 urban sprawl 93 permeable 94 impermeable 95 Subscript 96 Natural selection 97 Relative age 98 Water table 99 Variable 100 Control group 101 102 Heterogeneous Mixture Homogeneous Mixture 103 Fossil Fuel Allows substances to easily pass through Does not allow substances to pass through The number written slightly below and to the right of a chemical symbol that shows how many atoms of an element are in a compound The theory that explains how populations can eventually evolve into new species The age of an object or event in comparison to another object or event The highest part in the ground that is saturated, or completely filled with water Any factor that can change in a controlled experiment A standard set up in which to the experimental results are compared A substance that is not uniform throughout. A substance that is evenly spread throughout. Particles not distinguishable. Earth History Term Hydrosphere Term Hydrosphere Term Chemistry Term Earth History Term Earth History Term Hydrosphere term Chemistry Term Chemistry Term Chemistry Term Chemistry Term A natural fuel such as Energy Term coal or gas, formed in the geological past from the remains of living organisms. 104 Nonrenewable 105 Renewable 106 Watersheds 107 River Basin 108 Salinity 109 Deep Ocean Technology 110 Nitrates 111 Clean Water Act 112 Fungi 113 Biotechnology 114 Ecosystem Used to describe energy sources that exist in a limited amount on Earth. Thus all available material could eventually be completely used. Energy which comes from natural resources, which naturally replenish. Areas of land that water drains in to when the ground is saturated or impermeable. The entire geographical area drained by a river and its tributaries. The amount of salt in a substance. Technology that continuously provides information about new life forms, Earth resources, and geologic processes. A form of nutrient pollution. Passed in the US in 1972, this law focused regulation on industrial waste and water contamination as well as waste water treatment. Any of a group of unicellular, or multicellular, sporeproducing organisms feeding on organic matter. Technology that uses living processes to make advancements in the areas of health, medicine and industry. A biological environment consisting of all the organisms living in a particular area, as well as all the nonliving resources. Energy Term Energy Term Hydrosphere Term Hydrosphere Term Hydrosphere Term Hydrosphere Term Hydrosphere Term Hydrosphere Term Microbiology Term Microbiology Term Hydrosphere Term 115 Populations 116 Food Chain 117 Absolute Age 118 Evolution 119 Adaptations A group of organisms of Hydrosphere Term the same species inhabiting a given area. The sequence of who eats whom in a biological community. The age of a rock as determined by the measurement of radioactive decay from the time of the rock's formation. Adaptations that arise through natural selection by genetic variation Special features that allow a plant or animal to live in a particular place or habitat. Hydrosphere Term Earth History Term Earth History Term Earth History Term