Two-day 5E lesson plan covering the basics of the dichotomous key using different types of candy.  The lesson begins with a whole group activity and then moves into student exploration using a key to identify "mystery candy."  On the second day, students create their own dichotomous key to help students identify random buttons.

This resource provides a 5E style lesson (Engage, Explore, Explain, Elaborate, Evaluate) over the rock cycle, including a single-period lab using crayons to model the cycle.  It’s often a difficult concept for students to imagine that over millions of years, one kind of rock will change into another kind of rock.  This lab allows students to see the changes taking place, and learn important qualities of each type of rock and how they are formed.Photo:  Rainbow of Crayon Shavings by Richie Girardin via Flickr

Video Description:   Find out how rocks brought to Earth by the Apollo astronauts have helped NASA learn more about the rock cycle. Compare igneous, sedimentary and metamorphic rocks found on Earth to three types of rocks found on the moon.     Video Length:  4:08.NASA eClipsTM is a suite of online student-centered, standards-based resources that support instruction by increasing STEM literacy in formal and nonformal settings.  These free digital and downloadable resources inform and engage students through NASA-inspired, real-world connections.NASA eClips Our World videos (grades 3-5) help students understand the differences between science (the natural world) and engineering (the designed world).  These video segments supplement elementary learning objectives not only in science, technology, engineering and mathematics, but also in reading, writing, visual and performing arts.