In this lesson, students observe a teacher-directed demonstration that provides a conceptual understanding of latent heat, the "hidden heat" present in all changes from one phase to another, by using a hand warmer. Full description.

This program provides scientific research and assessment to evaluate the effects of atmospheric deposition on aquatic and terrestrial ecosystems. A clickable map depicts locations of acid rain monitoring stations by state. This site also contains reports presenting data on acid rain trends and monitoring efforts as well as research performed on acid rain accumulation values. Information is also available ... Full description.

This demonstration is designed to show the effect of acid on statues and buildings. Students will learn how acid rain is an air pollution problem as the teacher discusses the slow deterioration of statues and buildings due to the weak acid rain that falls on them. Students will learn that the sulfur and nitrogen compounds that contribute to acid rain primarily come from man-made sources, such as industries ... Full description.

In this lesson plan students will speculate on various scenarios of future world climates if the greenhouse effect increases. Upon completing this lesson, students should be familiar with carbon dioxide (CO2) and theories about its role in the greenhouse effect; the global conference that was held in Kyoto, Japan, in 1997 to set international limits on CO2 emissions; leading producers of CO2 emissions; ... Full description.

Educating Young People About Water is a website for obtaining materials designed to help develop a community based, water education program that targets youth and links key community members. There are three guidebooks: A Guide to Program Planning and Evaluation, A Guide to Unique Program Strategies, and A Guide to Goals and Resources. The last guide is searchable on-line with more than 100 curricula ... Full description.

The Federation of Earth Science Information Partners (ESIP Federation) brings together data and information providers from government agencies, universities, non-profit organizations, and businesses in an effort to make Earth science information available to a broader community. The objective of the Federation is to develop methods that make space-based imagery and related Earth science data easy ... Full description.

In this site, Martin Chaplin has brought together a selection of ideas concerning the complex behavior of water in hopes of encouraging both the understanding of water and further work. Some of the many ideas presented are: the structure of water, water anomalies, hydrogen bonding, the phase diagram of water, and water hydration. Full description.

From pyroclastic compounds to natural hormones and common drugs, this site features detailed chemical information on various molecular compounds. Each month a new molecule is added to the list. Molecule pages connect to either a University Chemistry Department or commercial site in the United Kingdom, the United States, or anywhere in the world. Most descriptions include a history of use, chemical ... Full description.

An interactive version of the Periodic Table of the Elements. Each element is linked to a wealth of information concerning basic chemical properties, as well as short descriptions of its history, sources, compounds, uses, and isotopes. The table can be downloaded in PDF format. Other pages explain the purpose and use of the Periodic Table, and how new elements are named. A version of Mendeleev's original ... Full description.

This site utilizes an unconventional approach to the identification and recollection of the periodic elements. Each element is linked to one or more comic strips, which makes reference to the particular element of interest. Instructors will find this site useful for visual aides. A site-specific search allows resource users to pinpoint the perfect "elemental" comic. Regular site visitors are informed ... Full description.