Shop Windows to the Universe

Ready, Set, SCIENCE!, by the National Research Council, focuses on K-8 science classsrooms. Check out the other publications in our online store, as well as classroom materials.

    Courtesy of Alison Lehnherr-George

From: Alison Lehnherr-George
Teotihuacan, March 13, 2006

The Pyramids of Teotihuacan

Today we had some time to do a little sight-seeing. We went to the pyramids of Teotihuacan. The name of the city and the pyramids was given by the Aztecs, but they are not believed to be the people who built the city. In this picture, Dr. Greg Huey and I are only about half way up the Sun Pyramid. Behind us you can see the Moon Pyramid. Both pyramids were very tall and the view was amazing. Because of the high altitude here in Mexico City (about 7,000 ft or 2,000 m), it took us a long time to climb to the top and we were constantly out of breath. Throughout the city, we were able to climb through various ruins where the people used to live and work. I also crawled through some very small tunnels. Not much is known of the people who created and used to occupy this city or what happened to them. Overall, it was an amazing experience to walk through a city that at its height of activity used to be one of the largest in the world.

Teotihuacan Website

You might also be interested in:

Traveling Nitrogen Classroom Activity Kit

Check out our online store - minerals, fossils, books, activities, jewelry, and household items!...more

Light extinction of particles

Not all particles are the same, many of them have different shape, size, and composition. Some of them reflect or scatter light, and others absorb it. Two instruments on the image, photometer and nephelometer,...more

What does Tecamac mean?

Measuring site T1 is in Tecámac. This is a little town close to Mexico City. The name Tecámac is a Náhuatl word, an ancient Mexico's language, spoken by Aztecs. In Náhuatl, Tetl or Tec means stone, camatl...more

Peroxides Measured at the T1 Site

Hello again: We are nearing the end of our field campaign in Mexico. It has been a real adventure, with friendly people, great food, and interesting science. I obtained some good hydrogen peroxide measurements...more

Cerro del Chiquihuite

Here is an example of how polluted the City is. This is a picture of "Cerro del Chiquihuite", which is situated around 5km (3miles) north from us. Chiquihuite is very close, indeed. However, we can barely...more

Ruins at Zempoala

On one of our down days, we took a little trip to a small town about 20 km from Veracruz. In the little town of Zempoala (also called Cempoala), there is a large area of partially restored ruins of ancient...more

T0

This is a picture of the site where I am going to be measuring particles (I am in the room on the top of the building). We call it T0 because it is inside of the city and we can consider that the pollutants...more

Boxes

Our boxes crossed the border yesterday and, after a 15 hours drive from Laredo, finally arrived this morning! The fun begins!!...more

Windows to the Universe, a project of the National Earth Science Teachers Association, is sponsored in part is sponsored in part through grants from federal agencies (NASA and NOAA), and partnerships with affiliated organizations, including the American Geophysical Union, the Howard Hughes Medical Institute, the Earth System Information Partnership, the American Meteorological Society, the National Center for Science Education, and TERC. The American Geophysical Union and the American Geosciences Institute are Windows to the Universe Founding Partners. NESTA welcomes new Institutional Affiliates in support of our ongoing programs, as well as collaborations on new projects. Contact NESTA for more information. NASA ESIP NCSE HHMI AGU AGI AMS NOAA