Explain all of the effects of the factor that you tested For example, temperature increases both the frequency of collisions and the fraction which are successful C C+
Use more key terms in your discussion of collision theory C+ B
Explain why the factor you tested increases the rate Make your discussion of collision theory more thorough B A
Include values for rate in your discussion Include a discussion of collision theory (a successful collision must have proper geometry and enough energy to overcome the activation energy) Include values for rate in your discussion A A+
Include diagrams to support your discussion of collision theory A+ A++