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7.2 Science Vocab
Chemical Reactions and Energy
Question | Answer |
---|---|
exothermic reaction | when energy exits the reaction system and flows to its surroundings |
endothermic reaction | when energy flows from its surroundings and enters the reaction system |
stakeholders | entities like people, or things that are impacted by deisgn decisions |
trade-offs | when one decision directly affects another decision, and you can't do both things |
cascading consequences | the many possible changes as a result of making a planned or unplanned change |
optimize | make the best or most effective use of |
prototype | a first, typical or preliminary model of something |
criteria | a principle or standard by which something may be judged or decided |
constraints | a limitation or restriction |
chemical reaction | a process in which one or more substances, the reactants, are converted to one or more different substances, the products |
MRE | Meals, ready to eat |
research | a systematic series of investigations planned to answer specific questions |
reactants | the substances we start with in a chemical reaction |
products | the substances we end up with at the end of a chemical reaction |