Did you know that Huizilopochtli was dressed with hummingbird feathers on his head?
Earth and Space Science Concept of the Day
Do you know what this word or phrase means?
Plate tectonics
xPlate tectonics : The theory supported by a wide range of evidence that considers the Earth's crust and upper mantle to be composed of several large, thin, relatively rigid plates that move relative to one another.
The National Center for Atmospheric Research (NCAR) in Boulder, Colorado has created powerful new computer software that will help scientists study climate change in much more detail than ever before....Read more