Other
Time and Date: Daylight Saving Time Dst
Daylight Saving Time is a way of making better use of the daylight in the evenings by setting the clocks forward one hour during the longer days of summer, and back again in the fall. To remember which way the clock goes, keep in mind...
University of California
Ucmp: A Relative Dating Activity
An learning activity to help learners grasp the concept of relative dating and geologic time.
Curated OER
National Park Service: What Is Geologic Time?
A discussion of geologic time, along with a presentation of evidence for the time span involved.
Australian Museum
Australian Museum: Dating the Earth
How do scientists know how old the Earth is? What is radioactive dating? Are there other dating methods? Get the answers to these questions and others at this site presented by the Australian Museum Online.
University of California
University of California Museum of Paleontology: Distribution in Time and Space
The Understanding Evolution site provides evidence for evolution in biogeography utilizing relative dating, geography, and plate tectonics.
US Geological Survey
U.s. Geological Survey: Geologic Time
A discussion of geologic time, how scientists use the concept, and how they have determined its span.
Other
Planetary Society: Relative and Absolute Ages in Histories of Earth and the Moon
A lengthy scholarly article that discusses the geologic time scale, its history of development, age-dating events that occurred in different eras, and how absolute and relative dating are used to assess the ages of the Earth and Moon....
US Geological Survey
The Numeric Time Scale
This is a good source for getting an in-depth description of using radioactive decay to measure the ages of rocks. In addition to describing the process of radiometric dating, this resource also includes a geologic time scale and four...
Illustrative Mathematics
Illustrative Mathematics: F Le Carbon 14 Dating in Practice I
In this task, students learn about exponential decay by examining the amount of Carbon-14 left in a preserved plant with the passage of time after the plant has died. This provides a simple introduction to Carbon-14 dating but the actual...
New York Times
New York Times: Looking Back at the Crash of '29
This site takes a look back at the stock market crash of 1929 and compares it to modern day confidence in the market. Content also includes the full text of the front page articles from the New York Times, dated October 28, 29, and 30,...
New York Times
New York Times: On This Day: Commander of Armies That Turned Back Japan Led a Brigade in Wwi
An obituary for General Douglas MacArthur, who served in the United States Army for over sixty years. [Article date: April 6, 1964]
New York Times
New York Times: Haiti News
[Free Registration/Login Required] This site provides a comprehensive overview of Haiti's history as well as links to news articles about the country that date back to 1980. Links to interactive media concerning the 2010 earthquake in...
Other
Time and Date: Weather: Accuracy of Weather Forecasts in Time
An explanation of why forecasts for today's weather are generally more accurate than weather forecasts further ahead in the future. The different types of forecast ranges are also briefly explained.
Common Sense Media
Common Sense Media: My Social Media Life
For most middle schoolers, being on social media can mean connecting with friends, sharing pictures, and keeping up-to-date. But it can also mean big-time distractions, social pressures, and more. This lesson helps students navigate the...
A&E Television
History.com: How the Design of the World Trade Center Claimed Lives on 9/11
After the jets hit, stairwells became the sole means of escape for thousands of WTC occupants. But design choices hampered full evacuation -- and made the descent even more harrowing. The stairs in the twin towers were a product of their...
University of California
University of California Museum of Paleontology: Fossil Evidence
Understanding Evolution provides evidence for evolution using fossils. There are also links to lesson plans.
Fourmilab Switzerland
John Walker: Your Sky
You can produce sky maps for any date and time, viewpoint or observing location. See your sky map, horizon view, or track an asteroid or comet on this highly interactive site.
New Advent
Catholic Encyclopedia: Luteran Religion
A long and detailed description of Lutheran Religion Gives a long history of the evolution of Lutheran Religion from the time of the Protestant Reformation. Includes information on the Lutheran Churches today, their beliefs, and their...
Leaf Group
Classroom: How to Write a Research Paper Outline
This is an article focusing on gathering research information including paper requirements, citation information, and content, and then completing note cards and an outline.