\begin{frame}
  \frametitle{Rates of Change}
  
  Rates of change are important in:
  \begin{itemize}
    \item all natural sciences, 
    \item in engineering, and
    \item social sciences
  \end{itemize}
  \medskip\pause
  
  \begin{exampleblock}{}
    Examples of rate of change:
    
    \begin{itemize}
    \pause
      \item in economics: change of production costs with respect to the number of items produced  
            (called marginal costs)
    \pause\medskip
      \item in physics: rate of change of work with respect to time (called power)
    \pause\medskip
      \item in chemistry: rate of change of the concentration of a reactant with respect to time
            (called rate of reaction)
    \pause\medskip
      \item in biology: rate of change of the population of bacteria with respect to time
    \end{itemize}
  \end{exampleblock}
\end{frame}