CK-12 Foundation
Ck 12: Earth Science: Nitrogen Cycle in Ecosystems Study Guide
Review the main concepts of the nitrogen cycle in this study guide.
CK-12 Foundation
Ck 12: Earth Science: Nitrogen Cycle in Ecosystems
[Free Registration/Login may be required to access all resource tools.] Describes the nitrogen cycle.
CK-12 Foundation
Ck 12: Earth Science: Nitrogen Cycle in Ecosystems
[Free Registration/Login may be required to access all resource tools.] Describes the nitrogen cycle.
CK-12 Foundation
Ck 12: Life Science: Nitrogen Cycle
[Free Registration/Login may be required to access all resource tools.] Like water and carbon, nitrogen is also repeatedly recycled through the biosphere. This process is called the nitrogen cycle. Learn more about the nitrogen cycle in...
CK-12 Foundation
Ck 12: Biology: Nitrogen Cycle
[Free Registration/Login may be required to access all resource tools.] Covers the nitrogen cycle.
CK-12 Foundation
Ck 12: Life Science: 12.23 Nitrogen Cycle
Learn about the Nitrogen cycle, and understand how it affects the ecosystem.
Scholastic
Scholastic: Study Jams! Science: Ecosystems: The Nitrogen Cycle
A video and a short multiple-choice quiz on the nitrogen cycle and how it works in an ecosystem.
Other
Algone: The Nitrogen Cycle
This resource gives a brief overview of the nitrogen cycle, dealing especially with the nitrogen cycle in aquariums.
University of Illinois
University of Illinois: Illinois State Water Survey: Nitrogen Cycle: Human Impact on the Nitrogen Cycle
An overview of the impact of human activities on the environment and how those actions effect the nitrogen cycle.
Other
Physical Geography: Nitrogen Cycle
Learn that the nitrogen cycle illustrates how nutrients cycle through a terrestrial ecosystem with the chapter in this free textbook. Explains how nitrogen plays an important role for life. See a diagram of the nitrogen cycle that shows...
University of Missouri
Microbes in Action: "There's Something Fishy": The Nitrogen Cycle
An opportunity for students to experience the nitrogen cycle through observing daily changes in an aquarium. Students test the level of three nitrogen compounds to understand the process of nitrification. Lesson plan gives a lab...
Utah Education Network
Uen: Nitrogen Cycle Stream Side Science
Students will learn about the nitrogen cycle through discussion and the construction of a diagram.
American Geosciences Institute
American Geosciences Institute: Earth Science Week: Traveling Nitrogen
Students play the role of nitrogen atoms traveling through the nitrogen cycle to gain understanding of the varied pathways through the cycle and how nitrogen is relevant to living things.
Science Buddies
Science Buddies: Nitrogen Fixing Bacteria and Nitrogen Fertilizers
Plants need nitrogen to build proteins and nucleic acids to grow healthy stems and leaves. Though the Earth's atmosphere is made up of 79% nitrogen, the form of nitrogen found in the atmosphere cannot be used by plants. In this...
Encyclopedia of Earth
Encyclopedia of Earth: Nitrogen
Information about the element, Nitrogen, atomic number 14. Covers common chemical transformations, its physical properties, atomic properties, how abundant it is on the Earth, and details about health-related regulations. Also discusses...
Web Elements
Web Elements Periodic Table: Nitrogen
Lots of valuable information on nitrogen, its properties and some of its uses and compounds.
Texas Education Agency
Texas Gateway: Abiotic Cycles
Given scenarios, illustrations, or descriptions, the student will describe the flow of matter through carbon and nitrogen cycles and describe the consequences of disrupting these cycles.
National Earth Science Teachers Association
Windows to the Universe: The Nitrogen Cycle
Interesting information on the Nitrogen Cycle as it relates to the Earth system.
BiologyWise
Biology Wise: Understanding Nitrogen Cycle With a Diagram
Describes the steps involved in the nitrogen cycle, a critical biogeochemical cycle.
University Corporation for Atmospheric Research
Ucar: Biogeochemical Cycles
The ways in which an element or compound such as water moves between its various living and nonliving forms and locations in the biosphere is called a biogeochemical cycle. All of the atoms that are building blocks of living things are a...
Khan Academy
Khan Academy: Biogeochemical Cycles
Test your knowledge of the water cycle, carbon cycle, and nitrogen cycle.
University Corporation for Atmospheric Research
Ucar: The Carbon Cycle
A comprehensive introduction to the carbon cycle. The cycle of atoms between living and non-living things is known as a biogeochemical cycle. The most common of these are the carbon and nitrogen cycles.
Ducksters
Ducksters: Science for Kids: Nitrogen Cycle
Kids learn about the nitrogen cycle and how this nutrient travels through the ecosystem to sustain life on Earth.
University Corporation for Atmospheric Research
Ucar: Cycles of the Earth System: Traveling Nitrogen
Through hands-on activities, students play the role of nitrogen atoms traveling through the nitrogen cycle to gain understanding of the varied pathways through the cycle and the relevance of nitrogen to living things.
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