Earth Science

Topography

Topography is the study of the physical features of a land area, including natural and man-made formations like: Mountains Hills Valleys Lakes Oceans Rivers Cities...

Glaciers

Glaciers are large bodies of ice that form over many years in areas where more snow falls than melts. In this lesson, we will explore...

Deserts

Deserts are one of the most fascinating and unique biomes in the world. A desert is defined as an area that receives less than 10...

Grasslands

Grasslands, also known as prairies or savannas, are vast expanses of land characterized by the presence of tall grasses and a lack of trees. They...

Geology

Geology is the scientific study of the Earth, including its composition, structure, and processes. It is a field that has helped us to understand the...

Food Chain and Web

Food chains and webs are important concepts in ecology that describe the relationships between different organisms in an ecosystem. Understanding food chains and webs is...

Carbon Cycle

The Carbon Cycle is the process by which carbon is cycled through the Earth’s atmosphere, oceans, land, and living organisms. Carbon is a key element...

Oxygen Cycle

The oxygen cycle is the process by which oxygen is produced and consumed in the Earth’s atmosphere, biosphere, and lithosphere. It is a critical process...

Water Cycle

The water cycle, also known as the hydrologic cycle, is the continuous process by which water moves from the Earth’s surface to the atmosphere and...

Nitrogen Cycle

The Nitrogen Cycle is a natural process that involves the cycling of nitrogen through various forms in the environment. Nitrogen is an essential element for...