G8 Science Ch6 S2 Crossword
                          
                          
                          
                          
                          
                          
                          
                          
                          
                          
                          
                          
                          
                          
                          
                          
                          
                          
 
 
Down: 1) The principle that matter is not created or destroyed during a chemical reaction.2) A number in front of a chemical formula in an equation that indicates how many molecules or atoms of each reactant and product are involved in a reaction.4) A chemical reaction in which two or more simple substances combine to form a new, more complex substance.5) A system in which matter can enter from or escape to the surroundings.6) A substance formed as the result of a chemical reaction. Across: 3) A reaction in which one element replaces another in a compound or when two elements in different compounds trade places.7) A short, easy way to show a chemical reaction, using symbols.8) A system in which no matter is allowed to enter or leave.9) A chemical reaction that breaks down compounds into simpler products.10) A substance that enters into a chemical reaction.
 

 

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