Benchmark 4D
The Physical Setting: Structure of Matter
Grades 9-12, page 80

The rate of reactions among atoms and molecules depends on how often they encounter one another, which is affected by the concentration, pressure, and temperature of the reacting materials. Some atoms and molecules are highly effective in encouraging the interaction of others.
 

NSES Content Standard B  Physical Science: Chemical reactions  Grades 9-12, page 179  Chemical reactions can take place in time periods ranging from the few femtoseconds (10**-15 seconds) required for an atom to move a fraction of a chemical bond distance to geologic time scales of billions of years. Reaction rates depend on how often the reacting atoms and molecules encounter one another, on the temperature, and on the properties--including shape--of the reacting species.  NSES Content Standard B  Physical Science: Chemical reactions  Grades 9-12, page 179  Catalysts, such as metal surfaces, accelerate chemical reactions. Chemical reactions in living systems are catalyzed by protein molecules called enzymes.