Separation techniques: Centrifugation

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.

This lecture discusses how atoms divide energy.

This is a chemistry parody of My Humps by the Black Eyed Peas. It covers standard 1, the periodic trends. It highlights atomic radius, electronegativity and ionization energy. It really helps students remember the vocabulary and how it all works together.

Lakes and Ponds - Aquatic Science with Dr. Rudy Rosen Lesson 9 includes: Where are ponds and lakes in your community? What role do they play in your economy? How are lakes similar to ponds? How are they different? What kind of organism makes up the greatest amount of living material in a pond? Besides providing food, what other roles do plants have in lake and pond ecosystems? How are plants that live under water similar to plants that live on land? How are they different? How do temperature and oxygen levels in ponds change during each 24-hour period? How do ponds change over time? What are the benefits and costs of building new reservoirs as a solution for Texas’ future water needs? 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.

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