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Support 7 U3 Science
Question | Answer |
---|---|
Criteria | A standard that must be met for success |
Constraint | Something that limits (gets in the way) an experiment or situation |
Energy Transfer | When energy moves from one thing to another |
Exothermic Reaction | A chemical reaction that produces heat |
Endothermic Reaction | A chemical reaction that requires heat to take place |
Chemical Reaction | When a new chemical forms. You can tell because it looks very different from the original substances and cannot be undone. ○ It takes energy to break bonds. ○ It takes energy to create new bonds. |
Reactant | A substance that takes part in and is changed by a chemical reaction |
Product | A substance made in a chemical reaction |
Problem | A thing or situation that is difficult to deal with or understand |
Solution | A way of solving a problem or dealing with a difficult situation |
Trade-Offs | Trading in some good things to remove some bad things, knowing there is no perfect solution. |
Optimum/Optimal | The best conditions that are possible. |