Derek Cheung

  • Image - Activation-Fig1
    Feature

    Investigating activation energies

    1 January 2007

    A challenge for post-16 students to investigate the activation energies of the enzyme-catalysed and the inorganic-catalysed decomposition of hydrogen peroxide

  • An image of the world made from plant debris
    Feature

    The carbon dioxide problem

    1 March 2006

    Measuring carbon dioxide from plant debris provides an opportunity for an inquiry-based experiment aimed at 14-15 year olds. Similar experiments are done by soil scientists and ecologists in their efforts to understand the global carbon cycle