Eighth Grade Science Crossword

QUESTIONS LIST: ELECTRONS : a stable subatomic particle with a charge of negative electricity, found orbiting the nucleus of an atom, PERIOD : the name given to a horizontal row of the periodic table, PANDEMIC : A disease that has spread over a whole country or the world, PRODUCER : an organism, either a green plant or bacterium, which is part of the first level of a food chain, SOLUTE : The substance that is dissolved in a solution, ISOTOPE : each of two or more forms of the same element that contain equal numbers of protons but different numbers of neutrons, FOSSIL : the remains or impression of a prehistoric organism preserved in petrified form or as a mold or cast in rock, NICHE : The role or function of an organism or species in an ecosystem, MATTER : has mass and takes up space, OUTBREAK : The sudden start of a disease, ABIOTIC : physical rather than biological; not derived from living organisms, LIPIDS : fatty acids that include many natural oils, waxes, and steroids, SYMBIOTIC : the relationship between diverse organisms that live together, PRODUCTS : a substance that is formed as the result of a chemical reaction. Products are on the right side of a chemical equation, ELEMENT : A substance that cannot be broken down into simpler substances by chemical means, GENETICS : the study of heredity and the variation of inherited characteristics, HOMOGENEOUS : uniform, same throughout, EXOTHERMIC : Reaction that produces heat as the reaction proceeds, EXTINCTION : the state or process of a species, family, or larger group ceasing to exist; the species has vanished, METABOLISM : the chemical processes that occur within a living organism in order to maintain life, DENSITY : physical property; mass divided by volume, EPIDEMIC : A widespread occurrence of an infectious disease in a community at a particular time