G8 Science Ch6 S3-4 Crossword
                       
                       
                       
                       
                       
                       
                       
                       
                       
                       
 
 
Down: 2) A material that increases the rate of a reaction by lowering the activation energy.3) A material that decreases the rate of a reaction.5) A biological catalyst that lowers the activation energy of reactions in cells.6) A material that releases energy when it burns. Across: 1) The minimum amount of energy needed to get a chemical reaction started.4) The amount of one material in a certain volume of another material.7) A rapid reaction between oxygen and fuel that results in fire; the process of burning fuel to produce thermal energy.
 

 

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