Throughout the reflection, make sure you have a copy of the Student Guide and your data tables. Complete the paragraph by using the drop-down menus.

In this lab, you determined the relative ages of rock layers using the principles of relative dating. The _ says that a rock layer found closer to Earth’s surface is _ a rock layer that is deeper in Earth’s surface. The _ states that intrusions are _ the rock layer they cut across. You also determined the absolute ages of rock layers using a _ . The data you gathered helped you identify an unknown fossil.