In this learning activity you'll explore a step-by-step process to solve simple free-body diagrams. They identify forces acting in the x or y direction in interactive exercises.
Examining the Free Exercise Clause of the First Amendment
In this learning activity you'll read about efforts to prevent the government from interfering with citizens' rights to practice their religious beliefs.
Learners observe that the melting of a solid and the freezing of its liquid occur at the same temperature. The melting point is an intrinsic property and is used to identify a substance.