Microbiology: Nitrate Reductase Test

Available nitrogen is second only to water as the biggest constraint to biological activity in arid ecosystems, but ecologists have struggled to understand the balance of the input and output of nitrogen in deserts. However, researchers...

This video provides an informative overview of nitrogen, its properties, discovery, and various applications in different fields. Also, despite its potentially harmful effects, nitrogen is highlighted as an important component of the...

This live-action video program is about the term nitrogen cycle. The program is designed to reinforce and support a student's comprehension and retention of the term nitrogen cycle through use of video footage, photographs, diagrams and...

Learn the basics about Moles in equations. How do you calculate a mole? How do moles work in equations? Find out more in this video!