Review: This website consists of a lesson plan from Hawaii demonstrating the ability of a stream to erode, transport and deposit materials. The requirements of the lesson are fairly basic and should be available in all science departments. The lesson plan is not detailed enough in aims and objectives to stand up in a UK school situation, but it is a useful stimulus. In addition it has links to a series of similar experiment based observational exercises under the banner of "Exploring Planets Hands On Activities", as well as links to many other Hawaiian earth science related resources.