Life on Earth – A Fossil History is an exciting new product designed to help students understand how life has changed over vast periods of geologic time. Constructed of durable vinyl, the 23.5″ X 24.5″ colorful 3-D model allows students to correlate 21 replica “fossils” to realistic looking rock layers. Illustrations and ?fossil” include both marine and terrestrial life forms from the Pre-Cambrian through the present. Eons, eras, periods, epochs and years are clearly shown on the chart. The Teacher’s guide includes: classroom activities, pre/post tests, reference materials, glossary and are correlated to the National Standards. Grades 5-12.