Article explaining the importance of carbon as the basis for life, carbon dioxide's role in photosynthesis and respiration, carbon in the ocean and lithosphere, the impact of human activities on the carbon cycle, carbon that seems to be...

Extensive article on mangroves. Covers classification, physical characteristics, life cycle, habitat, economic value, and natural and human threats to their survival.

In this activity, students investigate the life cycle of an engineered product and how the product impacts the environment. They analyze a product using a simple life cycle assessment that assigns fictional numerical values for different...

By exploring the body of a boy or girl, this interactive helps the learner discover how the body changes during puberty. Click the hotspots on the child to get more in-depth information, then click on the adult to see the results.

Learn about viruses of humans and other animals, the Baltimore classification system, and the HIV life cycle.

This landing page includes learning modules on the following topics of: animals, plants, microorganisms, life cycles and reproductions, food chains, habits, humans and the environment, adaptation, inheritance, and evolution.

This collection of six images captures the magnificence of human development -- the transformation from baby to woman.

Students learn what insects are, how they live, how they find food, how they defend themselves, and how they affect humans. Organized into several articles accompanied by high-quality photos and video, this online exhibit provides...

Students will learn about some characteristics of different age groups, including mobility and what they eat.

A brief explanation of life cycle is provided along with pictoral respresentations of three different examples of life cycles (apple tree, butterfly and frog). The term metamorphosis is introduced and the resouce has an interactive...

Learn about the element carbon and its importance on the Earth's atmosphere and sustainability of life on the planet. Additionally, understand the role the carbon cycle plays in global climate change over time.

[Free Registration/Login may be required to access all resource tools.] The first year after birth is called infancy. Infancy is a period when the baby grows very fast. During infancy, the baby doubles in length and triples in weight....

Describes types of flatworms that are parasitic to humans and animals and what their life cycle looks like. Two or more hosts are needed for them to complete their life cycle.

This database includes life cycles, images, and diagnosis information for several parasites that can infect humans. The search does work better using scientific names.

Explore the human body's need for a normal cycle of dark and light and apply this to an understanding of biological clocks in other animals. Test the effect of light on the development of mealworm larvae into adults.

Join NASA in its study of oceanography and learn about the Earth system, the physical ocean, and life in the ocean. Try out the Giovanni: Earth Data Visualization Tool and access satellite-derived data to enhance the learning experience.

A brief analysis of several Swenson poems dealing with the human life cycle, particularly death. The critic calls her style, "both abstract and concrete."

Primates are a group of mammals that include apes, humans, monkeys, and prosimians. Primate characteristics and anatomy are explored, as well as life cycles, behavior and diet. Human impacts on other primate species have been...

Giant Pandas only live in the mountains of southwest China. This article focuses on Giant Panda habitat, diet, life cycle and reproduction. Extensive information is given on panda babies and the contrast between life in the wild and life...

Horse flies and deer flies are significant pests to both humans and animals. This site describes their life cycles, feeding patterns, and some methods of controlling them.

Students further their understanding of the salmon life cycle and the human structures and actions that aid in the migration of fish around hydroelectric dams by playing an animated PowerPoint game involving a fish that must climb a fish...

This article introduces various species of salmon, breaking them into two groups - Pacific and Atlantic Salmon. Salmon habitat and life cycle are described. Concepts of spawning and food chain are explored. The issues of human activities...

The bald eagle is a predatory bird that lives in North America. This article discusses bald eagle hunting habits, habitat, life cycle, diet, anatomy and mating habits. The concept of the food chain is introduced and is used to explain...

What exactly happens when you ovulate? This tutorial explains what happens including what hormones are released and when.