An investigation of krill and the potential impact of changes in the environment of the Southern Ocean on these important creatures. <br><br> <b>Standards Addressed:</b><br> <i>National Geography Standard:</i> Characteristics and Spatial Distribution of Ecosystems On The Earth's Surface<br> <i>NSTA Science Standard:</i> Flow of Energy and Matter in Ecosystems: Organisms that eat plants break down the plant structures to produce the materials and energy they need to survive. Then they are consumed by other organisms.<br> <i>National Science Standard C: Life Science -- Organisms and Environments</i><br> - Patterns of behavior are related to the nature of that organism's environment including number of organisms present, availability of food and resources, and physical characteristics of the environment. When environment changes, some plants and animals survive and others die or move. <br> <i>Standard F: Personal and Social Perspectives-Changes in Environments</i><br> -Environments are the space, conditions and factors that affect an individual's ability to survive and their quality of life. -Changes in environments can be natural or influenced by humans. Some changes are good, some are bad and some are neither good nor bad. Pollution is a change that can influence the health, survival or activities of organisms, including humans.