- Mima Mounds (wa100.dnr.wa.gov)
In Thurston County, Washington, mysterious mounded landforms create a wavy surface at the 637-acre Mima Mounds Natural Area Preserve (NAP). This fascinating geological phenomenon will likely leave you wondering, “How did these mounds form?” Don’t worry, you’re not the only person asking this question. Researchers are also puzzled. For many, the appeal is more than the mystery—it’s the views and picturesque hikes. As you wander the trails of this secluded natural area, the raw beauty of the landscape will consume your senses. Enjoy views of Mount Rainier and Mount St. Helens to the east, and the green hills of Capitol State Forest to the west. In the spring, purple camas flowers speckle the lush green grass that blankets these puzzling landforms. Come visit the Mima mounds and see what theory you come up with while enjoying this beautiful Washington natural area.
- Chlorine (Wikipedia)
Chlorine is a chemical element; it has symbol Cl and atomic number 17. The second-lightest of the halogens, it appears between fluorine and bromine in the periodic table and its properties are mostly intermediate between them. Chlorine is a yellow-green gas at room temperature. It is an extremely reactive element and a strong oxidising agent: among the elements, it has the highest electron affinity and the third-highest electronegativity on the revised Pauling scale, behind only oxygen and fluorine.