UV Vis spectroscopy

Prokaryotes are the most abundant organisms on Earth. This is an introductory lecture that describes their diversity and phylogeny.

Oceans: Gulf of Mexico - Aquatic Science with Dr. Rudy Rosen Lesson 12 includes: Which states share Gulf waters? Which other countries share the Gulf? What are some of the industries in the Gulf? How can people in these industries help keep Gulf waters healthy for aquatic life? What influence does the Mississippi River have on the Gulf? What is a hypoxic zone and its impacts? How are hypoxic zones formed? How can they be prevented? What are some of the ecosystems in the Gulf and what kind of organisms would you find in them? How are oil and gas platforms similar to coral reefs? What might you see on a Texas beach? What are currents? What do they do in the Gulf? How can you help marine mammals or sea turtles? What do you think scientist Sylvia Earle meant when she referred to the Gulf of Mexico as America’s Sea? What does it mean to you? Aquatic Science with Dr. Rudy Rosen is an on-line video curriculum arranged into 13 lessons in YouTube Playlists that follows the contents of Dr. Rosen’s recently published textbook, Texas Aquatic Science. The textbook is published by the Texas A&M University Press and can be obtained at any online bookseller or from the publisher here: http://www.tamupress.com/product/Texas-Aquatic-Science,7918.aspx Each lesson covers a major subject area and is broken down into short sub-topic video presentations. These short videos covering important aquatic science topics can be used by students, instructors in building their own aquatic science curricula, or by life-long learners for self-education. The comprehensive teaching guide and enhancements can be downloaded FREE here: https://tpwd.texas.gov/education/resources/aquatic-science The instructional website is here: http://texasaquaticscience.org/ Dr. Rudy Rosen is a university professor and director of the Institute for Water Resources Science and Technology at Texas A&M University in San Antonio and is a Fellow of the Meadows Institute for Water and the Environment at Texas State University. His bio is here: http://texasaquaticscience.org/rudolph-rosen-author-editor-texas-aquatic-science/ Aquatic Science is a cooperative education project sponsored by The Meadows Center for Water and the Environment at Texas State University, Harte Research Institute for Gulf of Mexico Studies at Texas A&M University-Corpus Christi, Texas Parks and Wildlife, and the National Science Foundation Research Coordination Network for Climate, Energy, Environment and Engagement in Semiarid Regions (NSF-CE3SAR). Additional funding was provided by the Ewing Halsell Foundation and the US Fish and Wildlife Service Sport Fish Restoration Program. Some materials were adapted from or provided by the Missouri Department of Conservation.

Explanation of what declination is from the point of view of astronomy. We also learn about the diurnal motion of celestial objects, and other astronomical terminology such as right ascension in order to fully understand what declination is and the likely reasons why ancient astrologers would consider declination to be important.

A description of the different genotypes of blood.

In this video lesson, Mr. Scullion demonstrates a reacting mass problem involving oxygen. Try the problem out on your own prior to finding out the solution.