A map from 1899 of Mexico showing the general climate divisions of the region, including areas of warm climate, temperate climate, and cold climate. "The Tropic of Cancer crosses Mexico near the center. The low, hot, and moist coast...

Establish in 1859, it became a Gold Rush boomtown in 1876. It is currently a State park preserved in arrested decay, neither restored nor destroyed. It is one of very few towns of this type to survive untouched.

Details on ATLAS, one of the Large Hadron Collider experiments, and on the detection of Higgs decay.

Details on ATLAS, one of the Large Hadron Collider experiments, and on the detection of Higgs decay.

This fortress was founded by Edward I in 1283. It is one of the most impressive of the decayed medieval strongholds of the British Isles.-Myers, 1905

Overview of radioactivity, the process in which particles are emitted from nuclei as a result of nuclear instability.

From the Mad Scientist Network web site. Using a question and answer format, this page provides a thorough discussion of fusion reactions. Fusion and fission are compared and contrasted and the mechanisms which must occur to initiate and...

This site includes brief Chemistry tutorials on how to simulate experiments illustrating a number of different topics.

This educational resource provides information to help students understand the concept of half life.

Explains what is meant by the half-life of a radioactive element and how it is calculated.

Interactive graphs of base 10 exponential and logarithmic functions are demonstrated and applied to real-world problems.

The National Oceanic and Atmospheric Administration provides a photo library of severe weather formations. This photograph is of a tornado in its "Rope" stage, captured in Cordell, Oklahoma on May 22, 1981.

See interesting pictures and read explanations of the different types of wood rotting fungi.

A look at where the Higgs boson exists within the Standard Model of particle physics. Explains forces in the Model (electromagnetism, strong nuclear force, and weak nuclear force) and offers thoughts on how the Higgs particle might be...

Learn about some practical, real-world examples of exponentials and logarithms.

Practice analyzing the end behavior of two functions that model similar real-world relationships, where one function is exponential and the other is polynomial. Students receive immediate feedback and have the opportunity to try...

Write exponential functions of the basic form f(x)=a * b squared, either when given a table with two input-output pairs, or when given the graph of the function. Students receive immediate feedback and have the opportunity to try...

Given a description of a real-world relationship, determine whether that relationship is linear or exponential. Students receive immediate feedback and have the opportunity to try questions repeatedly, watch a video or receive hints.

Given a table with values of two quantities over time, determine whether the quantities grow linearly or exponentially. Students receive immediate feedback and have the opportunity to try questions repeatedly, watch a video or receive...

Read a passage about alcohol production and absorption and answer the follow-up questions to practice for the MCAT.