This is done by dividing the objectâs mass by its volume. The formula for density is: Density = Mass / Volume. This equation can also be written: Ï=m/V. In the formula, Ï is the symbol for density. Scientists measure density in kilograms per cubic metre (kg/m3). m is the symbol for mass. Scientists measure mass in kilograms (kg).
Definition - What does Proof of Concept (POC) mean? A proof of concept (POC) is a demonstration, the purpose of which is to verify that certain concepts or theories have the potential for real-world application. POC is therefore a prototype that is designed to determine feasibility, but does not represent deliverables. Proof of concept is also known as proof of principle.
(Benchmarks for Science Literacy, p. 295.) The purpose of this lesson is to help students learn how to use and interpret graphs. The graphs will be pulled from a variety of sources, and the activities ask students to interpret graphs. Students need to start this lesson with the knowledge of what a graph is. They should also know how to observe and collect data.