Light

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Light is one of the four L.A.W.S. of nature. ( the "L")

Technically, light is the portion of the electromagnetic spectrum that is visible to the human eye. (read more below)

In the context of SOP and the LAWS, Light represents "energy" - or at least a starting point for energy chains that lead to food. All organisms need some sort of energy to survive. Producers collect light energy through their leaves and convert it into chemical energy in a process known as Photosynthesis.

Visible light is also known as white light. However, it is comprised of a multitude of colors. Visible light in the natural world can be broken down in to a few different categories: 1. Light that is visible, 2. Light that allows us to see, and 3. Light that allows us to see and releases heat.

Examples of each:

1. Triboluminescence and bioluminescence

2. Moonlight (due to sunlight reflecting off the surface of the moon)

3. Sunlight, Lightning, and Fire

Sunlight is our most abundant source of natural light. It is made up of bright light and radiant heat. Due to the tilt of the Earth, the amount of available light changes throughout the year. This quarterly change creates seasons (spring, summer, fall, winter or dry season and wet season) Like the electromagnetic spectrum, sunlight contains visible light, ultraviolet light, and infrared light.

As the sunlight shines on the Earth, the photons (particle of light) reach the Earth's surface (in the form of soil, water, trees, asphalt) and release heat energy. Throughout the day, certain parts of the Earth's surface absorb more heat energy than others. As the Earth rotates around the sun, moving from day to night, the heat absorbed by the Earth is released into the atmosphere (convection). This simple action helps create small to extremely large weather systems.

For more information on Sunlight check out:

http://en.wikipedia.org/wiki/Sunlight

For more information on Light check out:

http://en.wikipedia.org/wiki/Light#Electromagnetic_spectrum