Brownsville is a borough in Fayette County, Pennsylvania, United States, officially founded in 1785 located 35 miles (56 km) south of Pittsburgh along the Monongahela River.
2nd Item Specification: Given a group of organisms and a key, classify organisms based on observable characteristics. Depth of Knowledge Level 1. 1  A tool used by scientists to identify unknown organisms based on observable characteristics is called a. 2  dichotomous key.
In order to do these investigations, scientists use several tools for experimentation. Basic research equipment includes tools that can be used for measuring lengths, mass, and volume. One of the most basic pieces of equipment used in the measuring of volume is the volumetric flask. Let's discuss the volumetric flask and its use in scientific experiments.