Related Concept Videos

Coriolis Effect01:17

Coriolis Effect

Coriolis EffectThe Coriolis effect is how Earth’s rotation causes moving air and water to curve rather than move in a straight line. This effect influences weather patterns, ocean currents, and airplane flight paths. It is why hurricanes spin in different directions in the Northern and Southern Hemispheres. Scientists can better understand global climate, wind patterns, and ocean circulation by studying the Coriolis effect.Science and Engineering Practices (SEP): Developing and Using...
Continent-Continent Convergent Plate Boundaries01:26

Continent-Continent Convergent Plate Boundaries

Continent-Continent Convergent Plate BoundariesThe Earth's surface is made up of large, moving sections called tectonic plates. Sometimes, two continental plates push toward each other. When this happens, neither plate sinks because both are made of thick, low-density rock. Instead, the edges of the plates crumple and fold, creating high mountain ranges. One of the best examples of this is the Himalayas, where the Indian plate and the Eurasian plate continue to collide. This movement creates...
Supercontinent Cycle and Pangaea01:28

Supercontinent Cycle and Pangaea

Supercontinent Cycle and PangaeaThe supercontinent cycle is the process where Earth's landmasses come together to form a supercontinent and then break apart over millions of years. This cycle has repeated several times in Earth’s history. The most well-known supercontinent was Pangaea, which existed about 300 million years ago. It included all the land on Earth in one large mass. Over time, Pangaea split apart due to the movement of tectonic plates, creating the continents we see today.
Wegener and the Continental Drift Hypothesis01:30

Wegener and the Continental Drift Hypothesis

Wegener and the Continental Drift HypothesisIn the early 1900s, Alfred Wegener, a German scientist, proposed the Continental Drift Hypothesis, the idea that Earth’s continents were once joined together in a supercontinent called Pangaea and slowly drifted apart over millions of years. Although his ideas were not widely accepted then, later discoveries provided evidence supporting continental movement, leading to the modern theory of plate tectonics. Understanding Wegener’s hypothesis helps...
What is Climate?01:16

What is Climate?

Climate refers to the prevailing weather conditions in a specific area over an extended period. As the saying goes, “Climate is what you expect. Weather is what you get.” Climate is influenced by geographic factors, such as latitude, terrain, and proximity to bodies of water.
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Geoid and Ellipsoid01:28

Geoid and Ellipsoid

The Earth's shape is best described as an ellipsoid, a slightly flattened sphere created by rotating an ellipse around its minor axis. This flattening results in the polar axis being about 21 kilometers shorter than the equatorial axis. In contrast, the geoid represents the Earth's gravitational shape and aligns with the mean sea level (MSL). The geoid is an irregular equipotential surface where gravity is perpendicular at every point. Variations in Earth's mass distribution cause geoid...
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