Apples rot and turn brown because they take in oxygen and give off carbon dioxide. If apples are stored in cool temperatures, they will rot slower than they would in room temperature. Other conditions such as humidity, and the storage atmosphere also effect how quickly apples rot.
We may know where the Columbia River is, but do we know how it was formed? Why is the Willamette Valley such a great place to raise crops? Why is the landscape of Central and Eastern Oregon so different from the rest of the west side of the state? Students learn the answer to these questions and more! The readings are written to teach students middle school students about the three major catastrophic geological factors that created the landscape we see in Oregon and throughout the Northwest today.
Students are provided with an unlabeled image of an Oregon county map. County outlines for all of Oregon’s 36 counties and a map of Oregon with all of the counties outline can be found by clicking on the blue links below. Each county map dimensions are 8.5" x 11".