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Ecosystems for Kids

Ecosystems

An ecosystem is a community of living and non-living things that function together. Within an ecosystem, organisms are interdependent and adapted to the environment. Ecosystems can be as large as a desert or a sea or as small as a tree or a pond. Examples of ecosystems are coral reefs, rainforests, deep seas, deserts, tundra, savanna and urban centers like our cities.
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What is an Ecosystem?
Grade: 3 - 12
Ecosystem for kids - This lesson explains and explores the dynamics in an ecosystem.
2:45
 

Tell Me Why - Environment and Ecosystems
Grade: 3 - 12
A lesson about the environment, biomes and ecosystems.
2:15
 

Ecosystems
Grade: 5 - 12
The lesson explains how ecosystems interact with biotic and abiotic factors. Learn about food chains and food webs with help of examples. The lesson presents real data from Yellowstone Park to show how populations interact. It also explains how human impacts can eventually lead to changes within an ecosystem.
14:00
 

Biodiversity
Grade: 8 - 12
Lesson on ecosystem that explains the importance of biodiversity. It explains how biodiversity can be species, genetic or ecosystem diversity. It explains the importance of keystone species in an environment with help of two examples - the jaguar and the sea otter.
7:35
 

Biotic and Abiotic Factors
Grade: 8 - 12
Learn about biotic and abiotic factors, and differences between them. The lesson explains how both abiotic and biotic factors can affect organisms at the level of the cell, the population and even the ecosystem.
10:00
 

Populations
Grade: 8 - 12
The lesson explains how populations interact in an ecosystem. It covers interactions such as mutualism, commensalism and parasitism; and symbiosis of multiple populations based on effects that may be neutral, positive, or negative. Human impacts to ecosystems are also considered.
11:15
 

Ecosystem Ecology
Grade: 3 - 12
A presentation on ecosystem ecology, which looks at how energy, nutrients, and materials are getting shuffled around within an ecosystem. Learn about ecosystems, trophic structure, primary producers, primary, secondary and tertiary consumers, detrivores, bioaccumulation and more.
10:10
 

Biomes : Savanna
Grade: 5 - 12
A lesson on terrestrial biomes - deserts, grasslands, and forests. It explains factors such as latitude, proximity to oceans, and elevation, that affect climate. It discusses climate's relationship to the type of vegetation found in major terrestrial biomes including tropical and temperate rainforests, deciduous forests, savannas, grasslands, chaparrals, taiga, tundra and deserts.
2:40
 

Biomes : Freshwater
Grade: 5 - 12
A lesson on freshwater aquatic biomes - lakes, rivers, and wetlands. Learn about the characteristics common to all aquatic environments. It examines the different zones of freshwater lakes, the seasonal cycling of oxygen and nutrients.
2:05
 

Biomes : Wetlands
Grade: 5 - 12
A lesson on wetlands - the ecologically rich biomes. It explains the ecological importance of wetlands as they are considered the most biologically diverse of all ecosystems, serving as home to a wide range of plant and animal life.
3:10
 

Biomes : Tropical Rainforest
Grade: 5 - 12
Learn about rainforests and discover what rainforests need to survive, and how these beautiful and vital natural resources are quickly disappearing. Uses stunning imagery, the video teaches us all about the wonders of the rainforest.
2:20
 

Biomes : Deciduous Forests
Grade: 5 - 12
A presentation on deciduous forest biomes.
4:30
 

Biomes : Grasslands
Grade: 5 - 12
A video about the tropical grasslands.
3:15
 

Biomes : Taiga and Tundra
Grade: 5 - 12
The video illustrates the beauty and wonder of two of the world's biomes - taiga and tundra.
4:40
 

Populations : Distribution
Grade: 8 - 12
Lesson on ecosystem populations. It looks the distribution of populations over space and time, and the factors that influence such distributions.
3:50
 

Populations : Biotic Potential
Grade: 8 - 12
Lesson on ecosystem populations. It looks at how population growth rates are calculated and introduces the concepts of biotic potential, exponential growth and environmental resistance before looking at boom-and-bust cycles and the carrying capacity of ecosystems.
3:00
 

Competition, Predation, and Symbiosis
Grade: 8 - 12
Lesson on ecosystem populations. It examines predator-prey relationships and the various adaptations such as camouflage, warning coloration, mimicry and chemical warfare that have evolved as a result of these relationships. Symbiotic relationships such as parasitism, commensalism, and mutualism are also explored.
3:20
 

Symbiotic Relationships
Grade: 5 - 12
A presentation on symbiotic relationships in ecosystems.
10:00
 

Coral Reef Ecosystem
Grade: 5 - 12
Learn about coral reef ecosystems. Coral reefs form some of the most diverse ecosystems on Earth - they occupy only 0.1% of Earth's surface but provide a home for 25% of all marine species!
3:50
 

Life in the Polar Regions
Grade: 5 - 12
Explore life in the polar regions, and the dynamics of the polar ecosystems.
1:55
 

The Salt Desert Shrub Ecosystem
Grade: 5 - 12
Learn about salt desert shrub ecosystems that contribute to the diversity of Wyoming's rangelands.
1:30
 

Pond Ecology
Grade: 5 - 12
The presentation describes how ponds function including the importance of aquatic plants and algae to fish and other pond life.
3:10
 

Life in Tropical Rainforests
Grade: 5 - 12
The video takes you on a 400 million year journey to illustrate the diversity and beauty of life in the forests. It features the birds and primates of the forest canopy, and insects of the forest floor. It helps you better understand and appreciate the treasures of this environment.
7:30
 

Coral Reef Fishes
Grade: 5 - 12
Learn about the environmental dangers facing the world's shallow waters. With high demands for rare species of fish, coral reefs are in danger of being fished out and deserted.
4:05
 

Exploring Oceans: Great Barrier Reef
Grade: 5 - 12
Learn about the largest living structure, the Great Barrier Reef. It spans more than 1,200 miles (2,000 km) of islands and submerged reefs.
4:05
 

Rainforest Animals of the Amazon Forest
Grade: 5 - 12
Explore the Amazon jungle and see how a cute otter family is saved. Watch a relaxed young family of South American otters saved from being hunted for their fur through the work of keen biologists.
2:40
 

Tree and Plant Life in the Jungle
Grade: 5 - 12
The video looks at how plants compete to get the most sunlight in thick tropical forest.
3:10
 

Exploring the Deep - Life under the Sea
Grade: 5 - 12
Explore with a deep sea geoscientist as he studies life at depths down to 3,000 meters under the sea. In these exotic surroundings, the scientist has discovered both new animal species and communities, and new geological truths.
5:35
 

Hydrothermal Vents
Grade: 5 - 12
Learn more about life around hydrothermal vents - one of the strangest ecosystems on Earth that lie deep under the ocean.
2:50
 

Temperate Deciduous Forest
Grade: 5 - 12
A presentation on temperate deciduous forest.
4:35
 

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