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Exothermic and Endothermic Reactions Venn Diagram 7th grade science q2 week 8

middle school science

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Exothermic and Endothermic Reactions Venn Diagram 7th grade science q2 week 8

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  1. energy absorbed as heat energy is neither created nor destroyed surroundings warm up temperature increases involves a chemical change forms a chemical bond releasing energy temperature decreases breaks a chemical bond requiring energy energy released as heat surroundings cool down example: digestion involves heat example: photosynthesis products have less energy than reactants products have more energy than reactants

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