Examples of chemical change: During a chemical change, a new chemical composition and new properties are formed. Examples of chemical changes are: burning of wood, cooking of food, rusting of iron and souring of milk.
The Black Heritage Trail is a path in Boston, Massachusetts, winding through the Beacon Hill neighborhood and sites important in American black history.
Library of Congress. Black History Month is our time to highlight and reflect on those who have made significant contributions to the black community. These notable civil rights leaders changed the course of history through their activism. Some, like Martin Luther King Jr., are household names. Others, like Bayard Rustin, the organizer of the March on Washington, are unsung heroes.