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Based on the information presented in the lecture, students should be able to rank the images of island and volcanic processes from youngest to oldest.Their performance in this task is the assessable product.This activity was developed for use in a high school (grades 9-12) earth science class.It is also appropriate for an introductory level college geoscience class. The Relative Dating Lecture prepares students to be able to rank the images in the Relative Dating Activity from youngest to oldest and how to apply this to the formation of seamounts and volcanic islands.The complete "Paleontology and Dinosaurs" module takes approximately four weeks to teach. " activity is a 30-minute introduction to geologic time.INTRODUCTION Scientists have good evidence that the earth is very old, approximately four and one-half billion years old.Underlying assumptions are 1) that Faunal Succession is based on the observation that animals and animal communities that are preserved in sedimentary rocks change noticeably as geologic time passes (evolution).It was first recognized by William Smith, a British Surveyor, who while working on open cuts of canals, railroads, and roads, noticed that the fossils change systematically from the older towards the younger rocks.
Scientists also use direct evidence from observations of the rock layers themselves to help determine the relative age of rock layers.
Extinction of species is common; most of the species that have lived on the earth no longer exist.
*Earth and Space Science: Fossils provide important evidence of how life and environmental conditions have changed.
The module is an integrated unit which addresses the following National Science Education Standards: *Science as Inquiry: Students develop the abilities necessary to do scientific inquiry identify questions, design and conduct scientific investigations, use appropriate tools and technologies to gather, analyze and interpret data, think critically and logically to make the relationships between evidence and explanations, communicate results, and use mathematics in all aspects of scientific inquiry.
*Life Science: Fossils indicate that many organisms that lived long ago are extinct.