Link to Internet sites that are carefully chosen to support, extend, and enhance your students' understanding of Science DiscoveryWorks. Each trip includes a printable Trip Log, which your students can use to record their Internet site visit.		Link to Internet sites that will support and extend the hands-on Unit Projects in Houghton Mifflin Science DiscoveryWorks. Ask questions of online experts. Find people and places that will help your students successfully complete their projects.		Visit Internet sites of special interest to Texas students, teachers, and parents.