Algae are producers. This means that they make their own energy and food and do not need to eat other organisms to gain energy and live. Algae use the sun, water, and carbon dioxide to go through photosynthesis and make their own energy to grow, bloom, and reproduce.
Advance and retreat of the Ice-shelf
Interactive animation showing the changes occurring to an ice-shelf in relation to the temperature of the surrounding water. The animation has been created on the basis of the most recent models created by the modelling team of the antarctic research called ANDRILL.
Worldwide Amphibian Declines
AmphibiaWeb is an online system enabling anyone with a Web browser to search and retrieve information relating to amphibian biology and conservation. This site was inspired by the global declines of amphibians, the study of which has been hindered by the lack of multidisplinary studies and a lack of coordination in monitoring, in field studies, and in lab studies. We hope AmphibiaWeb will encourage a shared vision for the study of global amphibian declines and the conservation of remaining amphi
Is there a Crisis in World Journalism? Dr Fred Mudhai
Okoth Fred Mudhai is a Senior Lecturer in Journalism and Global Media/Communication at Coventry University, UK. He has written research papers and memos on ICT and politics as a member of the IT and Civil Society Network of the IT and International Cooperation Program, US Social Science Research Council (2003-2005). At the Tunis (2005) World Summit on the Information Society, he received a Media Award by Panos London and Global Knowledge Partnership. He was also a category runner-up in the 2007
eBird's goal is to maximize the utility and accessibility of the vast numbers of bird observations made each year by recreational and professional bird watchers. It is amassing one of the largest and fastest growing biodiversity data resources in existence. For example, in 2006, participants reported more than 4.3 million bird observations across North America. The observations of each participant join those of others in an international network of eBird users. eBird then shares these observati
Water is vital. Life on earth would be impossible without water. But water can also be life-threatening. Consider the destructive power of rivers which burst their banks, or polluted drinking water sources. The MSc Watermanagement track focuses on understanding natural surface and groundwater streams and on managing, controlling and using water streams for society. This covers both ground and surface water, as well as rainfall and, for example, waste water. Watermanagement also considers not jus
Visualizing Cultures opens a window on modern times by wedding popular images and scholarly commentary in ways that were not technologically possible until recently. Focusing to date on Japan and Asia in the modern world, these units enable users to “see” historical moments as they were actually depicted for mass audiences at the time from various national, cultural, racial, ideological, and individual perspectives. The graphics themselves also reflect the evolving nature of different medium
Fisheries Learning on the Web
FLOW is a comprehensive curriculum about the Great Lakes ecosystem with three core units: Food Web, Water and Fish. Geared toward upper elementary and middle school educators, standards-based lesson content features hands-on activities.
Literacy for Globalists Project
The Literacy for Globalists Project is a web-based citizen self-education curriculum about America's global affairs. Our goal is to empower participants -- Globalists -- to engage, broaden, and enrich a national discussion of U.S. foreign policy, supplementing the input of media and policy makers with the voices of citizens.
Study Guide for a Beginning Course in Ground-Water Hydrology
The principal purpose of this study guide is to provide a broad selection of study materials that comprise a beginning course in ground-water hydrology. These study materials consist primarily of notes and exercises. The notes are designed to emphasize ideas and to clarify technical points that commonly cause difficulty and confusion to inexperienced hydrologists and may not receive adequate treatment in standard textbooks. Some of the exercises are more extensive than those usually found in tex
Nutrients National Synthesis Project
This USGS site provides access to data sets collected by the National Water-Quality Assessment Program. It features fact sheets, reports, bibliographies, additional data sets and links to other resources about nutrients in streams, rivers and aquifers of the United States. The site briefly explains what nutrients are, how they are used in the agricultural industry, how they react chemically in the environment, some of the transport processes that introduce them to surface and groundwater, and wh
National Water Information System Web Data for the Nation
This USGS site provides access to water resources data collected at approximately 1.5 million sites in all 50 states, the District of Columbia, and Puerto Rico. The site features real-time and historical data retrievable by geographic area for surface water, groundwater, and water quality conditions such as temperature, specific conductance, pH, nutrients, pesticides, and volatile organic compounds. The site also includes an extensive inventory of information about data collection sites at strea
Global Change Teacher's Guide
Global change is a relatively new area of scientific study using research from many disciplines to determine how Earth systems change, and to assess the influence of human activity on these changes. The Global Change section of the Teaching Packet consists of an introduction and five activities. In teaching these activities, four themes are important: time, change, cycles, and Earth as home.
Virtual Maths - Numbers, Geometry 3D shapes
Diagrams and forumulas for calculating area and volume of 3D shapes cube, cuboid, cylinder, sphere, hemisphere, triangular prism, frustrum, cone, pyramid
NASA KSNN What is protein?
Nutrients (raw materials) are chemical substances found in foods. Essential nutrients are those that the body cannot make or is unable to make in the amount it needs. The 50 or so essential nutrients people need can be grouped into 6 basic categories and include protein, carbohydrates, fat, vitamins, minerals, and water.
Air-sea Interactions: Activities in Oceanography
This set of online activities helps students learn properties of ocean waves, wind-wave relationships and properties of tsunamis. The second part of the module explains the El Nino-Southern Oscillation (ENSO) and its impacts on global climates. Activities includes simple calculations, discovery learning, and using multiple choice self-testing. The module uses a combination of satellite imagery, simulations, animations and drawings to present relationships between atmospheric and oceanic processe
Christian Aid: Paper Bag Game
Fun and interactive, simulations games use role-play and decision-making to explore real life global issues. This is a popular and highly interactive game that gives an insight into what life is like for poor people trying to earn a living. Focusing on poor children in India, this game challenges pupils to find out if they could survive on the streets of Kolkata. Age: 9+
Molarity and Density
You can access the problems below via the Load Homework dialogue in the File menu of the Virtual Lab. They have been organized by concept and ranked by difficulty (A ranking of 1 denotes an easier problem; 5 is more challenging). Word files for these problems are provided so that you may edit and distribute the assignments in your classroom. The following types of problems can be found: dilution problems, Sucrose problem, Making Solutions from Solids, Metal Density problem, Liquid Density proble
You and a friend are hiking the Appalachian Trail when a storm comes through. You stop to eat, but find that all available firewood is too wet to start a fire. From your Chem 106 class, you remember that heat is given off by some chemical reactions; if you could mix two solutions together to produce an exothermic reaction, you might be able to cook the food you brought along for the hike. Luckily, being the dedicated chemist that you are, you never go anywhere without taking along a couple chemi