Khan Academy
Khan Academy: Complexity and Thresholds
Understand the definition of complexity and how it relates to the world we live in today.
abcteach
Abcteach: Earth Day Activities
[Free Registration/Login Required] How can you treat the earth with more respect? Check out this resource featuring links to elementary activities to celebrate Earth Day. You will find word searches, crossword puzzles, reading...
Khan Academy
Khan Academy: The Columbian Exchange
The rapid pace of globalization today is a continuation and acceleration of processes that began 500 years ago. This article discusses that not only humans started to travel the world, but also plants, species, bacteria, and viruses....
Khan Academy
Khan Academy: Uruk
Nestled between the Tigris and Euphrates rivers, the world's first major city sprang up in a fertile region of land called Mesopotamia. This article discusses the kings, writing, monumental temples and palaces, specialized occupations,...
Khan Academy
Khan Academy: Gallery: Geology
See the wonders of the world in this gallery of the features and physical processes of Earth.
Khan Academy
Khan Academy: Activity: Is It in There?
Can you connect our daily lives to dying start? In this lesson, students will find connections between elements found in the world around us today and chemical elements in dying stars.
Khan Academy
Khan Academy: Timekeeping
Why do we need calendars and clocks? To survive in this complex society, you need to track what others are doing and when they're doing it. You also need to know what's happening in the natural world. This article discusses how/why...
Khan Academy
Khan Academy: Activity: This Threshold Today
Did you know there are connections between our world today and the Big Bang? In this activity, students will read news articles that reveal these unexpected connections to understand how things we learn today are related to what we know...
Khan Academy
Khan Academy: Gallery: Voyage of the Beagle
The HMS Beagle, carrying Charles Darwin, sailed for five years and circumnavigated the world. Darwin recorded his observations in journals and later published them in 1839. This site contains pictures related to this expedition.
Khan Academy
Khan Academy: Gallery: Agriculture
Over the course of many years, humans evolved to abandon foraging and took up farming for their food needs. Scientists are still not sure why humans abandoned foraging and took up farming in several places around the world at about the...
Khan Academy
Khan Academy: Activity: The Future of Our Planet
This activity gets you to think about how to solve the problems that we may encounter in our future. It's important not only to try to predict the challenges the Earth might face, but also to consider how we can either prevent those...
Khan Academy
Khan Academy: Activity: This Threshold Today
Use the Internet to search for news stories about the Modern Revolution and discuss the provided questions. Helpful links are provided to get you started.
Khan Academy
Khan Academy: Collective Learning (Part 4)
In the final essay of a four-part series, David Christian explains how advances in communication and transportation accelerated collective learning.
Globio
Glossopedia: Earth Day
Earth Day is a worldwide celebration held annually on April 22nd. The purposes of Earth Day, the history of and the various activities held around the world are described. Activities and projects that can be done daily or year round are...
University of Michigan
Um Vrl: The Great Pyramid of Khufu
This site is a "modeling of the Great Pyramid of Khufu". The method used is "Virtual Reality Modeling Language" or "VRML". Every angle on the exterior and interior is displayed in great detail and with diagrams.