Curated OER
Human Tools: From Stone to Iron
In this tools worksheet, students read about the tools used during the Stone Age and how the process of smelting lead to a great change in tool making. Then students complete 3 short answer questions.
National Institute of Open Schooling
Occurrence and Extraction of Metals
Steel is a man-made alloy or a mixture of metals. Lesson 18 in this series of 36 focuses on metals and their extraction from Earth. Individuals read about, discuss, and answer questions after learning how people find most metals, the...
Curated OER
The Impact of Mining on American History
Students listen to background information about coal and its mining in the United States history. They then construct a timeline using the above article. Illustrate with pictures from the www.coaleducation.org web site.