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MIDDLE SCHOOL

Earth and Space Science

Ecosystems

Biological Communities - I
01:12
Biological Communities - I

Biological communities comprise interacting populations of various species that coexist in a shared environment. These interactions—such as predation,

Video Duration: 1 minute and 12 seconds
Biological Communities - II
01:28
Biological Communities - II

Biological communities are composed of diverse organisms interacting within shared environments. These interactions—such as competition, predation, an

Video Duration: 1 minute and 28 seconds
Roles in an Ecosystem
01:29
Roles in an Ecosystem

Ecosystems are dynamic systems where organisms interact with each other and their environment. Each organism has a specific role that contributes to t

Video Duration: 1 minute and 29 seconds
Flow of Energy in Ecosystems
01:21
Flow of Energy in Ecosystems

Energy is the driving force behind all biological processes in an ecosystem. It enters ecosystems through sunlight and moves through producers, consum

Video Duration: 1 minute and 21 seconds
Flow of Matter in Ecosystems
01:16
Flow of Matter in Ecosystems

Matter moves continuously through ecosystems, cycling between living organisms and their physical environment. This cycling involves processes like ph

Video Duration: 1 minute and 16 seconds
Nitrogen Cycle in Ecosystems
01:09
Nitrogen Cycle in Ecosystems

Nitrogen is essential for all living organisms, playing a critical role in forming proteins and DNA. Although nitrogen gas (N₂) makes up about 78% of

Video Duration: 1 minute and 9 seconds
Fresh Water Ecosystems - I
01:31
Fresh Water Ecosystems - I

Freshwater ecosystems, such as lakes, ponds, rivers, and wetlands, are bodies of water with low salt concentrations that support diverse life forms. L

Video Duration: 1 minute and 31 seconds
Fresh Water Ecosystems - II
01:24
Fresh Water Ecosystems - II

Wetlands are vital freshwater ecosystems where the land remains flooded or waterlogged for much of the year. They include marshes, swamps, and bogs, e

Video Duration: 1 minute and 24 seconds
Types of Marine Organisms
01:30
Types of Marine Organisms

The ocean is home to a vast array of organisms, each uniquely adapted to their environment. Marine life can be categorized based on where and how orga

Video Duration: 1 minute and 30 seconds
Marine Food Chains
01:27
Marine Food Chains

The ocean is home to a vast array of organisms, each uniquely adapted to its environment. Marine life can be categorized into plankton, nekton, and be

Video Duration: 1 minute and 27 seconds
Free Sample
Ocean Ecosystems - I
01:22
Ocean Ecosystems - I

The ocean is a vast and diverse ecosystem composed of distinct zones, each characterized by unique environmental conditions and life forms. From the s

Video Duration: 1 minute and 22 seconds
Free Sample
Ocean Ecosystems - II
01:06
Ocean Ecosystems - II

Hydrothermal vents are unique ecosystems located on the ocean floor, often along mid-ocean ridges where tectonic plates are moving apart. Discovered i

Video Duration: 1 minute and 6 seconds