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Unit 1 Vocab

TermDefinition
Science
Observation process of observing something or someone carefully or in order to gain information
Inference a conclusion reached on the basis of evidence and reasoning.
Hypothesis Educated guess
Controlled Experiment an independent variable is the only factor that is allowed to be adjusted
Independent Variable a variable (often denoted by x ) whose variation does not depend on that of another.
Dependent Variable a variable (often denoted by y ) whose value depends on that of another.
Control Group the group in an experiment or study that does not receive treatment by the researchers
Data facts and statistics collected together for reference or analysis.
Theory a system of ideas intended to explain something, especially one based on general principles independent of the thing to be explained
Bias cause to feel or show inclination or prejudice for or against someone or something
Biology the study of living organisms, divided into many specialized fields that cover their morphology, physiology, anatomy, behavior, origin, and distribution.
DNA deoxyribonucleic acid, a self-replicating material present in nearly all living organisms
Stimulus a thing or event that evokes a specific functional reaction in an organ or tissue
Sexual Reproduction
Asexual Reproduction
Homeostasis
Metabolism the chemical processes that occur within a living organism in order to maintain life.
Biosphere the regions of the surface, atmosphere, and hydrosphere of the earth
Atom the basic unit of a chemical element.
Nucleus the central and most important part of an object, movement, or group, forming the basis for its activity and growth
Electron a stable subatomic particle with a charge of negative electricity, found in all atoms and acting as the primary carrier of electricity in solids.
Element each of more than one hundred substances that cannot be chemically interconverted or broken down into simpler substances and are primary constituents of matter
Isotope each of two or more forms of the same element that contain equal numbers of protons but different numbers of neutrons in their nuclei,
Compound a thing that is composed of two or more separate elements; a mixture
Ionic Bond form when one atom gives up one or more electrons to another atom
Ion an atom or molecule with a net electric charge due to the loss or gain of one or more electrons.
Covalent Bond also called a molecular bond, is a chemical bond that involves the sharing of electron pairs between atoms
Hydrogen Bond a weak bond between two molecules resulting from an electrostatic attraction between a proton in one molecule and an electronegative atom in the other.
Cohesion the action or fact of forming a united whole.:
Adhesion the action or process of adhering to a surface or object
Mixture a substance made by mixing other substances together
Solution a liquid mixture in which the minor component
Solute the minor component in a solution, dissolved in the solvent.
Solvent able to dissolve other substances.: "osmotic, chemical, or solvent action
Suspension a mixture in which particles are dispersed throughout the bulk of a fluid
pH Scale A measure of acidity or alkalinity of water soluble substances
Acid chemical substance that neutralizes alkalis,
Base a substance capable of reacting with an acid to form a salt and water
Buffer a solution that resists changes in pH when acid or alkali is added to it.
Monomer a molecule that can be bonded to other identical molecules to form a polymer.
Polymer a substance that has a molecular structure consisting chiefly or entirely of a large number of similar units bonded together,
Carbohydrate any of a large group of organic compounds occurring in foods and living tissues and including sugars, starch, and cellulose.
Monosaccharide any of the class of sugars (e.g., glucose) that cannot be hydrolyzed to give a simpler sugar.
Lipid any of a class of organic compounds that are fatty acids or their derivatives and are insoluble in water but soluble in organic solvents
Nucleic Acid a complex organic substance present in living cells, especially DNA or RNA
Nucleotide a compound consisting of a nucleoside linked to a phosphate group
Protein any of a class of nitrogenous organic compounds that consist of large molecules composed of one or more long chains of amino acids and are an essential part of all living organisms
Amino Acid a simple organic compound containing both a carboxyl (—COOH) and an amino (—NH2) group.
Chemical Reaction a process that involves rearrangement of the molecular or ionic structure of a substance
Reactant a substance that takes part in and undergoes change during a reaction.
Product an article or substance that is manufactured or refined for sale
Activation Energy the minimum quantity of energy that the reacting species must possess in order to undergo a specified reaction.
Catalyst a substance that increases the rate of a chemical reaction without itself undergoing any permanent chemical change.
Enzyme a substance produced by a living organism that acts as a catalyst to bring about a specific biochemical reaction.
Substrate a substance or layer that underlies something, or on which some process occurs, in particular.
Created by: kvngspidey803