A person is seen holding two wires, one in each hand, and they are putting the wires into a clear plastic cup filled with water.

Jupiter's moon Europa poses exciting new possibilities for NASA's search for life beyond Earth. While there's still much to uncover about Europa, scientists have long known that liquid water exists beneath its icy shell. But how?

In this classroom activity, students will explore the relationship between magnetism and electricity to model how scientists determined that Europa has a magnetic field and a conductive liquid, subsurface ocean.

View the full classroom activity on the JPL Education website