A Moment of Science
It was one of the Earth's momentous times. Continents collided. Volcanoes erupted. Ocean currents shifted. Species ran amok.
Fish have been eating plastic in the Great Pacific Garbage Patch. This has scientists concerned about long term effects on the environment.
The North Pacific High is part of a relatively stable high pressure system in the Pacific Ocean that influences the weather.
What makes the Great Salt Lake in northern Utah salty? What makes freshwater lakes...well, fresh?
Photosynthesis is the biochemical process in which energy from sunlight is converted by plants, algae, and some bacteria into sugars, which are used by the organism as food. That is, these organisms convert the energy of the sun into a different form of energy. However, there is a least one exception: a little bacterium deep under the Pacific Ocean which manages photosynthesis without sunlight. Learn more on this Moment of Science.
The North Pacific High is part of a relatively stable high pressure system in the Pacific Ocean that influences the weather from northern Mexico, to the far-west and Southwest United States. In a high pressure system, air from up above tends to move downward to ground level.
For some time now, scientists have understood that the earth’s crust is divided into plates that move about at the rate of a few inches a year. Over time, this movement will form mountain ranges and volcanoes. They have also known that the earth’s mantle, the layer between the earth’s crust and core, was the [...]
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