1. Identify the rock types based on the legend: shale, sandstone, conglomerate, limestone, igneous rock (intrusive), and igneous rock (extrusive).
2. Observe the layering and structural features in the diagram.
3. Determine the relative ages of the rock layers using the principle of superposition (older layers are at the bottom, younger layers are on top).
4. Identify any folding or faulting in the rock layers.
5. Locate any intrusions (igneous rocks) and determine their relative age compared to the surrounding rock layers.
6. Note any unconformities (gaps in the geological record) where layers are missing due to erosion or non-deposition.
7. Use the principles of relative dating to establish the sequence of geological events.
Parent Tip: Review the logic above to help your child master the concept of relative age worksheet.