1. Fresh lava traps the direction of the earth's magnetic pole as it hardens.

2. The youngest rock is formed at the center of a mid-ocean Ridge.

3. Stripes of the magnetic rocks are visible on the ocean floor.

True or False?

1. As lava cools, it begins to go in the magnetic direction of the pole. It actually has been able to show magnetic pole changes throughout history this way. 2. The youngest rocks, crust, and fossils are near the ridge. 3. True, and this is essential for the theory of plate tectonics to work.