Hi, what do you want to do?
Khan Academy
Khan Academy: Properties of Exponents Challenge (Integer Exponents)
A quiz that covers all exponent properties using integer exponents.
University of Utah
University of Utah: An Example of Logical Construction: Powers
A page which uses exponents as a step-by-step example of how logic is used to find complex mathematical concepts by building upon simpler concepts.
Khan Academy
Khan Academy: Evaluate Radical Expressions Challenge
Evaluate numerical radical expressions using the properties of exponents.
Texas A&M University
Wtamu Virtual Math Lab: College Algebra: Exponential Equations
Use your knowledge of logarithmic properties in order to solve "exponential equations where x is in the exponent, but the bases do not match." This tutorial offers simple examples and practice exercises for you to complete and check.