Simon Fraser University
Chem1 Virtual Textbook: Chemistry and Geochemistry of the Oceans
As part of the General Chemistry Virtual Textbook, this site examines a variety of topics related to the oceans. Topics covered include composition of seawater, conservative and non-conservative substances, organic matter, and more.
National Institute of Educational Technologies and Teacher Training (Spain)
Ministerio De Educacion: La Dinamica De Los Ecosistemas
This unit shows how ecosystems change over time and how matter and energy, which are essential to its operation, are transformed and passed from one living thing to another forming, in some cases, authentic cycles. It contains 19...
Texas A&M University
Aggie Horticulture Network: Composting for Kids
Use this resource to learn about how we make compost and how we use it to grow gardens.
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 Illinois
University of Illinois Extension: The Great Plant Escape: Soiled Again
Become a detective and solve the soil mystery! To solve the case you must discover what soil is, why it's important, and in what kind of soil do plants grow. You will find out the four components of soil along with the different soil...
Michigan Reach Out
Michigan Reach Out!: Digging the Earth's Crust
Lesson plans from Michigan Reach Out! to help learners understand the different soil types and what uses they would be good for.