This resources is an online video available in the "World Science Festival" open education series. The video "What is Sleep? - How Scientists Know Rats Make Memories" is included in the Biology section of the series.

This resources is an online video available in the "World Science Festival" open education series. The video "What is Synesthesia?" is included in the Biology section of the series.

This resources is an online video available in the "World Science Festival" open education series. The video "Where Do You Go When You Go To Sleep?" is included in the Biology section of the series.

This resources is an online video available in the "World Science Festival" open education series. The video "Who Says Humans Are Unique, Anyway?" is included in the Biology section of the series.

This resources is an online video available in the "World Science Festival" open education series. The video "Who Will Regulate Transcranial Magnetic Stimulation (TMS)?" is included in the Technology section of the series.

This resources is an online video available in the "World Science Festival" open education series. The video "Why We Prevailed: Evolution and the Battle for Dominance" is included in the Biology section of the series.

This resources is an online video available in the "World Science Festival" open education series. The video "Why and How We Peer Into Rats' Brains" is included in the Biology section of the series.

This resources is an online video available in the "World Science Festival" open education series. The video "Why do Two Genetically Identical Mice Look Vastly Different?" is included in the Biology section of the series.

This resources is an online video available in the "World Science Festival" open education series. The video "Why do identical twins become different people?" is included in the Biology section of the series.

This resources is an online video available in the "World Science Festival" open education series. The video "Your Jennifer Aniston Brain Cell" is included in the Biology section of the series.

In this video Paul Andersen explains how the polarity of water makes life on the planet possible. Oxygen is highly electronegative and pulls the electrons closely creating a partial negative charge. The polarity of water (and the corresponding hydrogen bonds) create cohesion, adhesion, capillary action, high specific heat, and a universally good solvent.

Paul Andersen begins with a brief description of NASA discoveries related to Mars, Mercury and water. He then explains why water is required for life. He finally uses a simulation to show you why water acts as a wonderful solvent and provides a medium for metabolism.

Hank teaches us why water is one of the most fascinating and important substances in the universe.

The video resource "Water - Liquid Awesome: Crash Course Biology #2" is included in the "Biology" course from the resources series of "Crash Course". Crash Course is a educational video series from John and Hank Green.

In this video Paul Andersen defines water potential and explains how it can be calculated in a simple system. He explains how water can moved through osmosis and break down the two major parts of water potential (solute potential and pressure potential). He finishes the video with a sample calculation of solute potential.

Students are presented with information that will allow them to recognize that yeasts are unicellular organisms that are useful to humans. In fact, their usefulness is derived from the contrast between the way yeast cells and human cells respire. Specifically, while animal cells derive energy from the combination of oxygen and glucose and produce water and carbon dioxide as by-products, yeasts respire without oxygen. Instead, yeasts break glucose down and produce alcohol and carbon dioxide as their by-products. The lesson is also intended to provoke questions from students about the effects of alcohol on the human body, to which the teacher can provide objective answers.

This table identifies factors that make a planet habitable. The resource, "What Makes a World Habitable?" included in "Lesson 6 Testing New Worlds Mars Colony" is a part of "Unit 02 Introduction to Science and Engineering Methods" included in Energy & Sustainability ES - Course 1.

Paul Andersen answers this question about chromosomes. He explains how the base pairs of DNA form genes which are organized into the chromosomes of the overall genome.

This "What are Human Embryonic Stem Cells?" learning object is the from the Sumanas resource series. Sumanas offers a robust selection of content and services that are directed at enhancing the learning experience.

Paul Andersen describes the molecular structure of DNA. He describes the major parts of a nucleotide and explains how they are assembled into a nucleic acid. The nitrogenous base, deoxyribose sugar and phosphate group make up a single nucleotide. The 5' and 3' end of DNA is described.