Items associated with this NGSS statement in this project (ASPECt)
and other key ideas
RG030003
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A heat pack has less chemical energy after a reaction occurs inside the pack because some of its energy was transferred to a skier’s hands.
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RG032003
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The chemical energy of a glow stick after the reaction is less than it was before the reaction because energy was transferred out of the glow stick by light.
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RG031003
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The reactants of photosynthesis have less chemical energy than the products because energy from the sun is converted to chemical energy during photosynthesis.
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RG070003
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A cold pack has more chemical energy after the salt inside it dissolves. When the salt dissolves, some energy is transferred from the surroundings to the cold pack and converted into chemical energy.
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RG033003
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When wood burns, the chemical energy of the reactants is more than the chemical energy of the products because energy was transferred from the chemical reaction as thermal energy and light.
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RG173002
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An increase in temperature indicates that the amount of chemical energy decreased during the reaction.
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RG181001
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Measuring an increase in temperature during a chemical reaction is an indicator that the chemical energy of the reactants is greater than the chemical energy of the products.
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RG182001
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Measuring an decrease in temperature during a chemical reaction is an indicator that the amount of chemical energy increases.
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RG036003
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The amount of chemical energy depends on the types and number of atoms inside the battery and how they are arranged in molecules.
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RG035003
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The amount of energy required to separate atoms of the reactants in a glow stick is less than the amount of energy released when the atoms connect to form the product.
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RG183001
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When a heat pack is uesd, energy is released because the temperature of the surroundings increases.
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RG184001
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When an instant cold pack is used, energy is taken in because the temperature of the surroundings decreases.
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RG196001
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Chemical energy is transformed into kinetic energy (motion energy) in a battery operated watch.
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RG198001
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Measuring an decrease in temperature during a chemical reaction is an indicator that energy was taken in during a chemical reaction.
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RG199001
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During rusting, the substances have less chemical energy after the reaction because some energy was transferred out of the system.
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RG206001
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When a battery is connected to a capacitor in a closed circuit, chemical energy in the battery is converted into electrostatic potential energy in the capacitor.
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RG208001
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The chemical energy of the products of photosynthesis is greater than the chemical energy of the reactants (item includes bar graphs).
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RG209001
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The chemical energy of the products of cellular respiration is less than the chemical energy of the reactants (item includes bar graphs).
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RG210001
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If the chemical energy of the products of a chemical reaction is greater than the chemcial energy of the reactants, energy was taken in from the surroundings.
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RG211001
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If the chemical energy of the products of a chemical reaction is less than the chemcial energy of the reactants, energy was released to the surroundings.
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RG212001
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If the chemical energy of the products of a chemical reaction is greater than the chemcial energy of the reactants, energy was taken in from the surroundings because the amount of energy required to break bonds of the reactant molecules is greater than the amount of energy released when bonds of the product molecules are formed.
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RG213001
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If the chemical energy of the products of a chemical reaction is less than the chemcial energy of the reactants, energy was released to the surroundings because the amount of energy required to break bonds of the reactant molecules is less than the amount of energy released when bonds of the product molecules are formed.
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Energy: Forms, Transformation, Transfer, and Conservation