Presented is a review of studies investigating factors affecting climatic changes in the Earth's atmosphere--past, present, and future. Dating methods, particularly the Oxygen 18/16 method, are discussed. (SL)

Describes an earth science laboratory approach designed to involve students in an ongoing method of solving problems; student questions and discussion provide the basis for laboratory exercises. (Author/SL)

This ERIC Digest investigates the earth and space science guidelines of the National Science Education Standards. These guidelines are frequently referred to as the earth system and include components such as plate tectonics, the water cycle, and the carbon cycle. This Digest describes the development of earth systems science and earth systems…

This resource guide was developed for elementary, middle, and high school teachers to teach about oceanography and coastal processes. This guide contains information on the program's history and names and contact information for all Operation Pathfinder participants since 1993. The body is divided into 6 topics. Topic 1 is on Physical Parameters,…

This set of six videotapes and a teacher's guide follows an interdisciplinary approach and integrates science, mathematics, and writing. The teacher's guide accompanies the videotapes. Six lessons include: (1) "Rotation Duration," which explores the time that it takes for the Moon to go around the Earth and studies the common Moon…

A long-term study was conducted to test the effectiveness of visual thinking networking (VTN), a new generation of knowledge representation strategies with 56 ninth grade earth science students. The recent findings about the brain's organization and processing conceptually ground VTN as a new cognitive tool used by learners when making their…

Based on a hypothetical situation that aliens have invaded Earth and humans must relocate to another planet, students design a shelter that can be built on another planet to insure their survival. Students research the characteristics of a planet of their choice and consider how to get to that planet from Earth, determine which five items that…

This document presents a sample of the Arkansas science curriculum and identifies the content standards for physical science systems, life science systems, and Earth science/space science systems for first grade students. Each content standard is explained and includes student learning expectations, first grade benchmarks, assessments, and…

This study investigated the effects on student scientific efficacy after participation in the Goldstone Apple Valley Radio Telescope (GAVRT) project. In the GAVRT program, students use computers to record extremely faint radio waves collected by the telescope and analyze real data. Scientific efficacy is a type of self-knowledge a person uses to…

This publication presents a science activity and instructional information on mechanics of granular materials, interparticle friction and geometric interlocking between particles which is a fundamental concept in many fields like earthquakes. The activity described in this document focuses on the principal strength of granular materials,…

Discusses methods used in determination of absolute isotopic ages for the returned lunar material, including the uranium-lead, rubidium-strontium, and argon 40-argon 39 ratio methods. Indicates that there would exist a basin-forming bombardment period for the Moon extending over at least 300 million years. (CC)

Discusses the determination of hydrolyzable amino acid precursors and a group of six amino acids in the returned lunar samples of the Apollo programs. Indicates that molecular evolution is arrested at the precursor stage on the Moon because of lack of water. (CC)

Discusses the visual and photographic methods and the design features of a camera at Aberystwyth with a brief justification for satellite tracking. Indicates that satellite measurements have been used to determine the shape of the earth and diurnal variations in atmospherical densities. (CC)