The lifecycle of an animal or a plant is the series of changes and developments that passes through from the beginning of its life until death. Human beings are born and slowly grow, going through many stages before reaching adulthood: the stages are called a lifecycle. A lifecycle is defined as the developmental stages that occur during a lifetime. Plants and animals go through three basic stages in the life cycle starting out as a developing egg or seed, into an immature juvenile and transforming into an adult. During the adult stage organisms will reproduce giving rise to the next generation. Lifespans vary among species did you know that bristlecone pine trees have a life span of 1000 years?

The variety within and between all species of plants, animals and microorganisms and the ecosystems where they live and interact is biodiversity. The diversity of species is not evenly distributed throughout the planet because life depends on factors like temperature, altitude, brain and the presence of other species. We can prove this because tropical regions support more life than polar regions. Biodiversity is important to sustaining life on earth because it prevents anyone species from throwing the balance of nature out of order. Humans affect biodiversity through habitat destruction, overkill, introduced species and overpopulation affecting lifespan.

Lifespan Games

Human Lifespan Calculator

Environmental Protection Agency EPA water treatment flash game

Water Cycle

Water - A Never-ending Story

 Clouds

Safe Drinking Water

Water Treatment games

My Forest Temple Game

Fun Classroom Games with Trees

Forest Biome Spotter

Arctic Ocean Biome Ecosystem

The Forest Hunter Blue Planet

Life in the Forest Biome Habitat game

Simple Identification Guide for: Habitat in the Pond

Water Safari life in the Biome game

Ecosystem Showdown Forest Habitat  game

Biodiversity Forest Biome Games

Bass Fishing River Habitat Games like Asteroids

Fish, Coral, Marine Animals

Science Games

 Pond Life

Science Games

Ecology

Rainforests

Forests

Savannas

Swamps

Under the Sea

The Rock Cycle

Water Cycle for Kids

Carbon Cycle for Kids

FLASH Biogeochemical Cycles

Energy

Safe Drinking Water games

The Water Cycle

Groundwater and Watersheds