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science test review

test on 9-25-12

QuestionAnswer
Radiant Energy energy from the sun thats comes to earth as visible light, infered radiation and ultraviolent light.
Chemical Energy energy thats stored in a molecule ex. food
Photosynthesis A chemical reaction when plants convert energy from the sun to chemical energy
Chemical Reactions The process when one or more substances change to produce one or more different substances
Chemical Equation Chemical formulas and symbols written to represent a reaction 6H20+6co2= c6h12O6+602 this is the formula is the equation for photosynthesis
reactants A substance that takes part in and undergoes change during a reaction ex. the blank in the formula: 6H2O+6CO2= C6H12O6+6O2 are : 6H20+6CO2
Products A substance(s) a chemical reaction produce the products in the formula: 6H20+6CO2=C6H12O6+6O2 are: C6H12O6+6O2
Glucose a molecule with stored chemical energy that was converted from radiant energy during the process of photosynthesis Half of a sucrose molecule = glucose
Conservation of Matter a fundamental priciple in science which states matter can't be destroyed nor created except by God
Conservation of energy the total amount of energy in an isolated system remains constant over time it can change but can't be created or destroyed except by God.
Created by: mpillow2018
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