1. THE NORTHWEST ORDINANCE of 1787 2. THE NORTHWEST ORDINANCE CONFEDERATION:a group of loosely joined, but sovereign states. 3. THE NORTHWEST ORDINANCE Problem:Many states…

Slide 1 Slide 2 Northwest Territory One of the most important accomplishments under the Articles of Confederation Planned to sell land to raise revenue By 1784, a plethora…

Atoms and Elements Chemical Activity Ions Chemical Composition of the Earthâs Crust Crystallinity The Silicon-Oxygen Tetrahedron   Minerals Crystalline Solids Natural…

History of Atomic Theory History of Atomic Theory Figuring Out Atoms Daltonâs Atomic Theory Matter is composed of extremely small particles called atoms. Atoms are indivisible…

Dating and the Past Dating and the Past Both can be painful Why is dating rocks important? It helps tell us how the Earth has changed Ex. Continental Drift  rocks that…

Chapter 17 Chapter 17 How we Study the Earth Geologic Time Geologic Time is the time in terms of the Earthâs history of the Earth. Scientists now believe that the Earth…