Sub-Topics Evolution Extinction Level Event Mesozoic Period Paleozoic Period Pleistocene Period Precambrian Period Also Try Archaeology Dinosaurs Earth Sciences History - Ancient Lesson Plans Assessing the Ages of Fossils and Rocks (University of Indiana - Flammer) "This lesson should effectively and accurately inform students about the high level of confidence we have in the geological ages of an old Earth. At the same time, it should reveal an example of pseudoscience which should be part of any effort to improve science literacy and critical thinking." 10-04 Stratigraphic Columns (University of Indiana - Flammer) "Enables students to construct a stratigraphic column of an outcrop and understand sedimentary depositional processes." Grades 7 - 12. 10-04 Papers -Geological Periods of Time (Museum of Paleontology) Covers all of the major periods of time. 4-02 Asteroid Reports to Prevent an Extinction Level Event (National Geographic) "The Minor Planet Center, a clearing house for asteroid observations, receives up to 15,000 new sightings a day from the LINEAR telescopes alone." "The Center is part of a (U.S.) 3.5-million dollar-a-year NASA program, called Spaceguard, that locates asteroids in Earth's neighborhood. This program focuses on the estimated 1,200 to 1,500 larger asteroids in our area that are over 1 kilometer (0.6 mile) wide and could be potential planet killers, like the one that probably killed the dinosaurs some 65 million years ago." 4-05 Extinction 200 Million Years Ago (CNN) Describes a very rapid mass extinction of life on earth 200 million years ago. 5-01 Geological Ages (Dinosauria.com - Poling) Provides a chart with a detailed display of ages. 03-06 Geomagnetic Reversals (Wikipedia.org) "A geomagnetic reversal is a change in the orientation of Earth's magnetic field such that the positions of magnetic north and magnetic south become interchanged." 03-06 Horse Fossils (Florida Museum of Natural History) Provides an exhibit of horse fossils, organized by epoch or horse toe fossils. 5-01 Horse Fossils by Epoch (Florida Museum of Natural History) Provides an exhibit of horse fossils, organized by epoch. 5-01 Mammoths (Illinois State Museum) Provides an article and a picture. Old Bones n Stuff (Museum of Paleontology) Paleontology (Wikipedia.org) "Paleontology (palaeontology is the British spelling) is the study of the developing history of life on earth, of ancient plants and animals based on the fossil record, evidence of their existence preserved in rocks." 10-04 Paleontology Museum (University of California, Berkeley) 6-00 Paleontology by Geological Period, Phylogeny, or Theory (UCMP) Provides alternative formats of exploring paleontology. 3-00 Snowball Earth (Harvard University - Hoffman and Schrag) "Many lines of evidence support a theory that the entire Earth was ice-covered for long periods 600-700 million years ago. Each glacial period lasted for millions of years and ended violently under extreme greenhouse conditions. These climate shocks triggered the evolution of multicellular animal life, and challenge long-held assumptions regarding the limits of global change." 8-02 Virtual Fossils Reveal Secrets (BBC - Kettlewell) Provides a description and picture of early animals revealed by microscopic assembly of parts by computers. 4-01 Projects Paleontologist Skills for Grade 4 and 5 (TeachNet) "Introduce students to fossils and how paleontologists mark out a dig." (Loads slowly.)

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