ClassFlow
Class Flow: Nitrogen
[Free Registration/Login Required] In this flipchart, students are introduced to the element nitrogen, its gaseous state, atomic structure, and how it combines with hydrogen to form ammonia.
CK-12 Foundation
Ck 12: Earth Science: Flow of Matter in Ecosystems
[Free Registration/Login may be required to access all resource tools.] In this module, students will learn about the cycles of nature (water, carbon, nitrogen, and phosphorus) that support the flow of nutrient matter through an...
CK-12 Foundation
Ck 12: Biology: Recycling Matter Study Guide
Review some of the cycles that recycle matter through Earth's biospheres.
Ohio State University
Ohio State University: Concepts of Plant Ecology
An advanced discussion of plant interactions and relationships. Energy flow, nutrient cycling and succession are discussed. Try the quiz to check your understanding.
CPALMS
Florida State University Cpalms: Florida Students: Conservation of Mass and Energy in Living Systems
Learn about the conservation of mass and energy as it applies to different living systems.
TeachEngineering
Teach Engineering: Biodomes
Students explore the biosphere's environments and ecosystems, learning along the way about the plants, animals, resources and natural cycles of our planet. Over the course of lessons 2-6, students use their growing understanding of...
BioMan Biology
Bio Man Biology: Angry Aliens: Ecology
Teach aliens about ecology as you play this game, and review your own understanding in the process. Topics covered include levels of organization, ecological relationships, nutrition and energy, cycles (water, carbon, and nitrogen), and...
TeachEngineering
Teach Engineering: Environment
Through 10 lessons and more than 20 hands-on activities, students are introduced to the concept of an environment and the many interactions within it. As they learn about natural and human-made environments, as well as renewable and...